diff --git a/src/rp2_common/CMakeLists.txt b/src/rp2_common/CMakeLists.txt
index 82f56f8c5fa13abc44ffb64711810f3bd888abfb..fa121cfb7a86e0ba143378d7ac18b9902ab2c926 100644
--- a/src/rp2_common/CMakeLists.txt
+++ b/src/rp2_common/CMakeLists.txt
@@ -55,6 +55,7 @@ if (NOT PICO_BARE_METAL)
pico_add_subdirectory(pico_stdio)
pico_add_subdirectory(pico_stdio_semihosting)
pico_add_subdirectory(pico_stdio_uart)
+ pico_add_subdirectory(pico_stdio_rtt)
pico_add_subdirectory(cmsis)
pico_add_subdirectory(tinyusb)
@@ -85,4 +86,4 @@ set(CMAKE_EXECUTABLE_SUFFIX "${CMAKE_EXECUTABLE_SUFFIX}" PARENT_SCOPE)
pico_add_doxygen(${CMAKE_CURRENT_LIST_DIR})
pico_add_doxygen_exclude(${CMAKE_CURRENT_LIST_DIR}/cmsis)
-pico_promote_common_scope_vars()
\ No newline at end of file
+pico_promote_common_scope_vars()
diff --git a/src/rp2_common/pico_stdio/include/pico/stdio.h b/src/rp2_common/pico_stdio/include/pico/stdio.h
index 7a0ca27bf86ddd41933d33278d874bdd12b420c1..3b8e603798aaac7445bca667b77b7ce3876f7b8f 100644
--- a/src/rp2_common/pico_stdio/include/pico/stdio.h
+++ b/src/rp2_common/pico_stdio/include/pico/stdio.h
@@ -51,14 +51,14 @@ typedef struct stdio_driver stdio_driver_t;
/*! \brief Initialize all of the present standard stdio types that are linked into the binary.
* \ingroup pico_stdio
*
- * Call this method once you have set up your clocks to enable the stdio support for UART, USB
- * and semihosting based on the presence of the respective libraries in the binary.
+ * Call this method once you have set up your clocks to enable the stdio support for UART, USB,
+ * semihosting, and RTT based on the presence of the respective libraries in the binary.
*
* When stdio_usb is configured, this method can be optionally made to block, waiting for a connection
* via the variables specified in \ref stdio_usb_init (i.e. \ref PICO_STDIO_USB_CONNECT_WAIT_TIMEOUT_MS)
*
* \return true if at least one output was successfully initialized, false otherwise.
- * \see stdio_uart, stdio_usb, stdio_semihosting
+ * \see stdio_uart, stdio_usb, stdio_semihosting, stdio_rtt
*/
bool stdio_init_all(void);
diff --git a/src/rp2_common/pico_stdio/stdio.c b/src/rp2_common/pico_stdio/stdio.c
index 3656d2f11a9770d9d69e5b8a663650a7313f31eb..1c70406922f8d9779e726416e7524205a53dff3b 100644
--- a/src/rp2_common/pico_stdio/stdio.c
+++ b/src/rp2_common/pico_stdio/stdio.c
@@ -32,6 +32,10 @@
#include "pico/stdio_semihosting.h"
#endif
+#if LIB_PICO_STDIO_RTT
+#include "pico/stdio_rtt.h"
+#endif
+
#define STDIO_HANDLE_STDIN 0
#define STDIO_HANDLE_STDOUT 1
#define STDIO_HANDLE_STDERR 2
@@ -295,6 +299,11 @@ bool stdio_init_all(void) {
rc = true;
#endif
+#if LIB_PICO_STDIO_RTT
+ stdio_rtt_init();
+ rc = true;
+#endif
+
#if LIB_PICO_STDIO_USB
rc |= stdio_usb_init();
#endif
@@ -331,7 +340,7 @@ void stdio_set_translate_crlf(stdio_driver_t *driver, bool enabled) {
// Suppress -Wunused-parameter
(void)driver;
(void)enabled;
-
+
panic_unsupported();
#endif
}
diff --git a/src/rp2_common/pico_stdio_rtt/CMakeLists.txt b/src/rp2_common/pico_stdio_rtt/CMakeLists.txt
new file mode 100644
index 0000000000000000000000000000000000000000..d503754f41ddf3ef3edffa2776a727ee7003f885
--- /dev/null
+++ b/src/rp2_common/pico_stdio_rtt/CMakeLists.txt
@@ -0,0 +1,15 @@
+pico_add_library(pico_stdio_rtt)
+
+target_sources(pico_stdio_rtt INTERFACE
+ ${CMAKE_CURRENT_LIST_DIR}/stdio_rtt.c
+ ${CMAKE_CURRENT_LIST_DIR}/SEGGER/RTT/SEGGER_RTT.c)
+
+set_source_files_properties(${CMAKE_CURRENT_LIST_DIR}/SEGGER/RTT/SEGGER_RTT.c
+ PROPERTIES COMPILE_OPTIONS "-Wno-cast-qual;-Wno-cast-align")
+
+target_include_directories(pico_stdio_rtt_headers INTERFACE
+ ${CMAKE_CURRENT_LIST_DIR}/include
+ ${CMAKE_CURRENT_LIST_DIR}/SEGGER/RTT
+ ${CMAKE_CURRENT_LIST_DIR}/SEGGER/Config)
+
+pico_mirrored_target_link_libraries(pico_stdio_rtt INTERFACE pico_stdio)
diff --git a/src/rp2_common/pico_stdio_rtt/SEGGER/Config/SEGGER_RTT_Conf.h b/src/rp2_common/pico_stdio_rtt/SEGGER/Config/SEGGER_RTT_Conf.h
new file mode 100644
index 0000000000000000000000000000000000000000..4cdb6f419fc170bebc387d356a9b79026637adce
--- /dev/null
+++ b/src/rp2_common/pico_stdio_rtt/SEGGER/Config/SEGGER_RTT_Conf.h
@@ -0,0 +1,429 @@
+/*********************************************************************
+* SEGGER Microcontroller GmbH *
+* The Embedded Experts *
+**********************************************************************
+* *
+* (c) 1995 - 2021 SEGGER Microcontroller GmbH *
+* *
+* www.segger.com Support: support@segger.com *
+* *
+**********************************************************************
+* *
+* SEGGER RTT * Real Time Transfer for embedded targets *
+* *
+**********************************************************************
+* *
+* All rights reserved. *
+* *
+* SEGGER strongly recommends to not make any changes *
+* to or modify the source code of this software in order to stay *
+* compatible with the RTT protocol and J-Link. *
+* *
+* Redistribution and use in source and binary forms, with or *
+* without modification, are permitted provided that the following *
+* condition is met: *
+* *
+* o Redistributions of source code must retain the above copyright *
+* notice, this condition and the following disclaimer. *
+* *
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
+* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
+* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
+* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
+* DISCLAIMED. IN NO EVENT SHALL SEGGER Microcontroller BE LIABLE FOR *
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT *
+* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; *
+* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
+* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE *
+* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
+* DAMAGE. *
+* *
+**********************************************************************
+* *
+* RTT version: 7.88c *
+* *
+**********************************************************************
+
+---------------------------END-OF-HEADER------------------------------
+File : SEGGER_RTT_Conf.h
+Purpose : Implementation of SEGGER real-time transfer (RTT) which
+ allows real-time communication on targets which support
+ debugger memory accesses while the CPU is running.
+Revision: $Rev: 24316 $
+
+*/
+
+#ifndef SEGGER_RTT_CONF_H
+#define SEGGER_RTT_CONF_H
+
+#ifdef __IAR_SYSTEMS_ICC__
+ #include <intrinsics.h>
+#endif
+
+/*********************************************************************
+*
+* Defines, configurable
+*
+**********************************************************************
+*/
+
+//
+// Take in and set to correct values for Cortex-A systems with CPU cache
+//
+//#define SEGGER_RTT_CPU_CACHE_LINE_SIZE (32) // Largest cache line size (in bytes) in the current system
+//#define SEGGER_RTT_UNCACHED_OFF (0xFB000000) // Address alias where RTT CB and buffers can be accessed uncached
+//
+// Most common case:
+// Up-channel 0: RTT
+// Up-channel 1: SystemView
+//
+#ifndef SEGGER_RTT_MAX_NUM_UP_BUFFERS
+ #define SEGGER_RTT_MAX_NUM_UP_BUFFERS (3) // Max. number of up-buffers (T->H) available on this target (Default: 3)
+#endif
+//
+// Most common case:
+// Down-channel 0: RTT
+// Down-channel 1: SystemView
+//
+#ifndef SEGGER_RTT_MAX_NUM_DOWN_BUFFERS
+ #define SEGGER_RTT_MAX_NUM_DOWN_BUFFERS (3) // Max. number of down-buffers (H->T) available on this target (Default: 3)
+#endif
+
+#ifndef BUFFER_SIZE_UP
+ #define BUFFER_SIZE_UP (1024) // Size of the buffer for terminal output of target, up to host (Default: 1k)
+#endif
+
+#ifndef BUFFER_SIZE_DOWN
+ #define BUFFER_SIZE_DOWN (16) // Size of the buffer for terminal input to target from host (Usually keyboard input) (Default: 16)
+#endif
+
+#ifndef SEGGER_RTT_PRINTF_BUFFER_SIZE
+ #define SEGGER_RTT_PRINTF_BUFFER_SIZE (64u) // Size of buffer for RTT printf to bulk-send chars via RTT (Default: 64)
+#endif
+
+#ifndef SEGGER_RTT_MODE_DEFAULT
+ #define SEGGER_RTT_MODE_DEFAULT SEGGER_RTT_MODE_NO_BLOCK_SKIP // Mode for pre-initialized terminal channel (buffer 0)
+#endif
+
+/*********************************************************************
+*
+* RTT memcpy configuration
+*
+* memcpy() is good for large amounts of data,
+* but the overhead is big for small amounts, which are usually stored via RTT.
+* With SEGGER_RTT_MEMCPY_USE_BYTELOOP a simple byte loop can be used instead.
+*
+* SEGGER_RTT_MEMCPY() can be used to replace standard memcpy() in RTT functions.
+* This is may be required with memory access restrictions,
+* such as on Cortex-A devices with MMU.
+*/
+#ifndef SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ #define SEGGER_RTT_MEMCPY_USE_BYTELOOP 0 // 0: Use memcpy/SEGGER_RTT_MEMCPY, 1: Use a simple byte-loop
+#endif
+//
+// Example definition of SEGGER_RTT_MEMCPY to external memcpy with GCC toolchains and Cortex-A targets
+//
+//#if ((defined __SES_ARM) || (defined __CROSSWORKS_ARM) || (defined __GNUC__)) && (defined (__ARM_ARCH_7A__))
+// #define SEGGER_RTT_MEMCPY(pDest, pSrc, NumBytes) SEGGER_memcpy((pDest), (pSrc), (NumBytes))
+//#endif
+
+//
+// Target is not allowed to perform other RTT operations while string still has not been stored completely.
+// Otherwise we would probably end up with a mixed string in the buffer.
+// If using RTT from within interrupts, multiple tasks or multi processors, define the SEGGER_RTT_LOCK() and SEGGER_RTT_UNLOCK() function here.
+//
+// SEGGER_RTT_MAX_INTERRUPT_PRIORITY can be used in the sample lock routines on Cortex-M3/4.
+// Make sure to mask all interrupts which can send RTT data, i.e. generate SystemView events, or cause task switches.
+// When high-priority interrupts must not be masked while sending RTT data, SEGGER_RTT_MAX_INTERRUPT_PRIORITY needs to be adjusted accordingly.
+// (Higher priority = lower priority number)
+// Default value for embOS: 128u
+// Default configuration in FreeRTOS: configMAX_SYSCALL_INTERRUPT_PRIORITY: ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
+// In case of doubt mask all interrupts: 1 << (8 - BASEPRI_PRIO_BITS) i.e. 1 << 5 when 3 bits are implemented in NVIC
+// or define SEGGER_RTT_LOCK() to completely disable interrupts.
+//
+#ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY
+ #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20) // Interrupt priority to lock on SEGGER_RTT_LOCK on Cortex-M3/4 (Default: 0x20)
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration for SEGGER Embedded Studio,
+* Rowley CrossStudio and GCC
+*/
+#if ((defined(__SES_ARM) || defined(__SES_RISCV) || defined(__CROSSWORKS_ARM) || defined(__GNUC__) || defined(__clang__)) && !defined (__CC_ARM) && !defined(WIN32))
+ #if (defined(__ARM_ARCH_6M__) || defined(__ARM_ARCH_8M_BASE__))
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ __asm volatile ("mrs %0, primask \n\t" \
+ "movs r1, #1 \n\t" \
+ "msr primask, r1 \n\t" \
+ : "=r" (_SEGGER_RTT__LockState) \
+ : \
+ : "r1", "cc" \
+ );
+
+ #define SEGGER_RTT_UNLOCK() __asm volatile ("msr primask, %0 \n\t" \
+ : \
+ : "r" (_SEGGER_RTT__LockState) \
+ : \
+ ); \
+ }
+ #elif (defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_8M_MAIN__))
+ #ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY
+ #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
+ #endif
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ __asm volatile ("mrs %0, basepri \n\t" \
+ "mov r1, %1 \n\t" \
+ "msr basepri, r1 \n\t" \
+ : "=r" (_SEGGER_RTT__LockState) \
+ : "i"(SEGGER_RTT_MAX_INTERRUPT_PRIORITY) \
+ : "r1", "cc" \
+ );
+
+ #define SEGGER_RTT_UNLOCK() __asm volatile ("msr basepri, %0 \n\t" \
+ : \
+ : "r" (_SEGGER_RTT__LockState) \
+ : \
+ ); \
+ }
+
+ #elif (defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__))
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ __asm volatile ("mrs r1, CPSR \n\t" \
+ "mov %0, r1 \n\t" \
+ "orr r1, r1, #0xC0 \n\t" \
+ "msr CPSR_c, r1 \n\t" \
+ : "=r" (_SEGGER_RTT__LockState) \
+ : \
+ : "r1", "cc" \
+ );
+
+ #define SEGGER_RTT_UNLOCK() __asm volatile ("mov r0, %0 \n\t" \
+ "mrs r1, CPSR \n\t" \
+ "bic r1, r1, #0xC0 \n\t" \
+ "and r0, r0, #0xC0 \n\t" \
+ "orr r1, r1, r0 \n\t" \
+ "msr CPSR_c, r1 \n\t" \
+ : \
+ : "r" (_SEGGER_RTT__LockState) \
+ : "r0", "r1", "cc" \
+ ); \
+ }
+ #elif defined(__riscv) || defined(__riscv_xlen)
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ __asm volatile ("csrr %0, mstatus \n\t" \
+ "csrci mstatus, 8 \n\t" \
+ "andi %0, %0, 8 \n\t" \
+ : "=r" (_SEGGER_RTT__LockState) \
+ : \
+ : \
+ );
+
+ #define SEGGER_RTT_UNLOCK() __asm volatile ("csrr a1, mstatus \n\t" \
+ "or %0, %0, a1 \n\t" \
+ "csrs mstatus, %0 \n\t" \
+ : \
+ : "r" (_SEGGER_RTT__LockState) \
+ : "a1" \
+ ); \
+ }
+ #else
+ #define SEGGER_RTT_LOCK()
+ #define SEGGER_RTT_UNLOCK()
+ #endif
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration for IAR EWARM
+*/
+#ifdef __ICCARM__
+ #if (defined (__ARM6M__) && (__CORE__ == __ARM6M__)) || \
+ (defined (__ARM8M_BASELINE__) && (__CORE__ == __ARM8M_BASELINE__))
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ _SEGGER_RTT__LockState = __get_PRIMASK(); \
+ __set_PRIMASK(1);
+
+ #define SEGGER_RTT_UNLOCK() __set_PRIMASK(_SEGGER_RTT__LockState); \
+ }
+ #elif (defined (__ARM7EM__) && (__CORE__ == __ARM7EM__)) || \
+ (defined (__ARM7M__) && (__CORE__ == __ARM7M__)) || \
+ (defined (__ARM8M_MAINLINE__) && (__CORE__ == __ARM8M_MAINLINE__)) || \
+ (defined (__ARM8M_MAINLINE__) && (__CORE__ == __ARM8M_MAINLINE__))
+ #ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY
+ #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
+ #endif
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ _SEGGER_RTT__LockState = __get_BASEPRI(); \
+ __set_BASEPRI(SEGGER_RTT_MAX_INTERRUPT_PRIORITY);
+
+ #define SEGGER_RTT_UNLOCK() __set_BASEPRI(_SEGGER_RTT__LockState); \
+ }
+ #elif (defined (__ARM7A__) && (__CORE__ == __ARM7A__)) || \
+ (defined (__ARM7R__) && (__CORE__ == __ARM7R__))
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ __asm volatile ("mrs r1, CPSR \n\t" \
+ "mov %0, r1 \n\t" \
+ "orr r1, r1, #0xC0 \n\t" \
+ "msr CPSR_c, r1 \n\t" \
+ : "=r" (_SEGGER_RTT__LockState) \
+ : \
+ : "r1", "cc" \
+ );
+
+ #define SEGGER_RTT_UNLOCK() __asm volatile ("mov r0, %0 \n\t" \
+ "mrs r1, CPSR \n\t" \
+ "bic r1, r1, #0xC0 \n\t" \
+ "and r0, r0, #0xC0 \n\t" \
+ "orr r1, r1, r0 \n\t" \
+ "msr CPSR_c, r1 \n\t" \
+ : \
+ : "r" (_SEGGER_RTT__LockState) \
+ : "r0", "r1", "cc" \
+ ); \
+ }
+ #endif
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration for IAR RX
+*/
+#ifdef __ICCRX__
+ #define SEGGER_RTT_LOCK() { \
+ unsigned long _SEGGER_RTT__LockState; \
+ _SEGGER_RTT__LockState = __get_interrupt_state(); \
+ __disable_interrupt();
+
+ #define SEGGER_RTT_UNLOCK() __set_interrupt_state(_SEGGER_RTT__LockState); \
+ }
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration for IAR RL78
+*/
+#ifdef __ICCRL78__
+ #define SEGGER_RTT_LOCK() { \
+ __istate_t _SEGGER_RTT__LockState; \
+ _SEGGER_RTT__LockState = __get_interrupt_state(); \
+ __disable_interrupt();
+
+ #define SEGGER_RTT_UNLOCK() __set_interrupt_state(_SEGGER_RTT__LockState); \
+ }
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration for KEIL ARM
+*/
+#ifdef __CC_ARM
+ #if (defined __TARGET_ARCH_6S_M)
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ register unsigned char _SEGGER_RTT__PRIMASK __asm( "primask"); \
+ _SEGGER_RTT__LockState = _SEGGER_RTT__PRIMASK; \
+ _SEGGER_RTT__PRIMASK = 1u; \
+ __schedule_barrier();
+
+ #define SEGGER_RTT_UNLOCK() _SEGGER_RTT__PRIMASK = _SEGGER_RTT__LockState; \
+ __schedule_barrier(); \
+ }
+ #elif (defined(__TARGET_ARCH_7_M) || defined(__TARGET_ARCH_7E_M))
+ #ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY
+ #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
+ #endif
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ register unsigned char BASEPRI __asm( "basepri"); \
+ _SEGGER_RTT__LockState = BASEPRI; \
+ BASEPRI = SEGGER_RTT_MAX_INTERRUPT_PRIORITY; \
+ __schedule_barrier();
+
+ #define SEGGER_RTT_UNLOCK() BASEPRI = _SEGGER_RTT__LockState; \
+ __schedule_barrier(); \
+ }
+ #endif
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration for TI ARM
+*/
+#ifdef __TI_ARM__
+ #if defined (__TI_ARM_V6M0__)
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ _SEGGER_RTT__LockState = __get_PRIMASK(); \
+ __set_PRIMASK(1);
+
+ #define SEGGER_RTT_UNLOCK() __set_PRIMASK(_SEGGER_RTT__LockState); \
+ }
+ #elif (defined (__TI_ARM_V7M3__) || defined (__TI_ARM_V7M4__))
+ #ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY
+ #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
+ #endif
+ #define SEGGER_RTT_LOCK() { \
+ unsigned int _SEGGER_RTT__LockState; \
+ _SEGGER_RTT__LockState = _set_interrupt_priority(SEGGER_RTT_MAX_INTERRUPT_PRIORITY);
+
+ #define SEGGER_RTT_UNLOCK() _set_interrupt_priority(_SEGGER_RTT__LockState); \
+ }
+ #endif
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration for CCRX
+*/
+#ifdef __RX
+ #include <machine.h>
+ #define SEGGER_RTT_LOCK() { \
+ unsigned long _SEGGER_RTT__LockState; \
+ _SEGGER_RTT__LockState = get_psw() & 0x010000; \
+ clrpsw_i();
+
+ #define SEGGER_RTT_UNLOCK() set_psw(get_psw() | _SEGGER_RTT__LockState); \
+ }
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration for embOS Simulation on Windows
+* (Can also be used for generic RTT locking with embOS)
+*/
+#if defined(WIN32) || defined(SEGGER_RTT_LOCK_EMBOS)
+
+void OS_SIM_EnterCriticalSection(void);
+void OS_SIM_LeaveCriticalSection(void);
+
+#define SEGGER_RTT_LOCK() { \
+ OS_SIM_EnterCriticalSection();
+
+#define SEGGER_RTT_UNLOCK() OS_SIM_LeaveCriticalSection(); \
+ }
+#endif
+
+/*********************************************************************
+*
+* RTT lock configuration fallback
+*/
+#ifndef SEGGER_RTT_LOCK
+ #define SEGGER_RTT_LOCK() // Lock RTT (nestable) (i.e. disable interrupts)
+#endif
+
+#ifndef SEGGER_RTT_UNLOCK
+ #define SEGGER_RTT_UNLOCK() // Unlock RTT (nestable) (i.e. enable previous interrupt lock state)
+#endif
+
+#endif
+/*************************** End of file ****************************/
diff --git a/src/rp2_common/pico_stdio_rtt/SEGGER/RTT/SEGGER_RTT.c b/src/rp2_common/pico_stdio_rtt/SEGGER/RTT/SEGGER_RTT.c
new file mode 100644
index 0000000000000000000000000000000000000000..f3554041782c846587b8dc014465b72acbcd9e17
--- /dev/null
+++ b/src/rp2_common/pico_stdio_rtt/SEGGER/RTT/SEGGER_RTT.c
@@ -0,0 +1,2105 @@
+/*********************************************************************
+* SEGGER Microcontroller GmbH *
+* The Embedded Experts *
+**********************************************************************
+* *
+* (c) 1995 - 2021 SEGGER Microcontroller GmbH *
+* *
+* www.segger.com Support: support@segger.com *
+* *
+**********************************************************************
+* *
+* SEGGER RTT * Real Time Transfer for embedded targets *
+* *
+**********************************************************************
+* *
+* All rights reserved. *
+* *
+* SEGGER strongly recommends to not make any changes *
+* to or modify the source code of this software in order to stay *
+* compatible with the RTT protocol and J-Link. *
+* *
+* Redistribution and use in source and binary forms, with or *
+* without modification, are permitted provided that the following *
+* condition is met: *
+* *
+* o Redistributions of source code must retain the above copyright *
+* notice, this condition and the following disclaimer. *
+* *
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
+* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
+* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
+* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
+* DISCLAIMED. IN NO EVENT SHALL SEGGER Microcontroller BE LIABLE FOR *
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT *
+* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; *
+* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
+* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE *
+* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
+* DAMAGE. *
+* *
+**********************************************************************
+* *
+* RTT version: 7.88c *
+* *
+**********************************************************************
+
+---------------------------END-OF-HEADER------------------------------
+File : SEGGER_RTT.c
+Purpose : Implementation of SEGGER real-time transfer (RTT) which
+ allows real-time communication on targets which support
+ debugger memory accesses while the CPU is running.
+Revision: $Rev: 29668 $
+
+Additional information:
+ Type "int" is assumed to be 32-bits in size
+ H->T Host to target communication
+ T->H Target to host communication
+
+ RTT channel 0 is always present and reserved for Terminal usage.
+ Name is fixed to "Terminal"
+
+ Effective buffer size: SizeOfBuffer - 1
+
+ WrOff == RdOff: Buffer is empty
+ WrOff == (RdOff - 1): Buffer is full
+ WrOff > RdOff: Free space includes wrap-around
+ WrOff < RdOff: Used space includes wrap-around
+ (WrOff == (SizeOfBuffer - 1)) && (RdOff == 0):
+ Buffer full and wrap-around after next byte
+
+
+----------------------------------------------------------------------
+*/
+
+#include "SEGGER_RTT.h"
+
+#include <string.h> // for memcpy
+
+/*********************************************************************
+*
+* Configuration, default values
+*
+**********************************************************************
+*/
+
+#if SEGGER_RTT_CPU_CACHE_LINE_SIZE
+ #ifdef SEGGER_RTT_CB_ALIGN
+ #error "Custom SEGGER_RTT_CB_ALIGN() is not supported for SEGGER_RTT_CPU_CACHE_LINE_SIZE != 0"
+ #endif
+ #ifdef SEGGER_RTT_BUFFER_ALIGN
+ #error "Custom SEGGER_RTT_BUFFER_ALIGN() is not supported for SEGGER_RTT_CPU_CACHE_LINE_SIZE != 0"
+ #endif
+ #ifdef SEGGER_RTT_PUT_CB_SECTION
+ #error "Custom SEGGER_RTT_PUT_CB_SECTION() is not supported for SEGGER_RTT_CPU_CACHE_LINE_SIZE != 0"
+ #endif
+ #ifdef SEGGER_RTT_PUT_BUFFER_SECTION
+ #error "Custom SEGGER_RTT_PUT_BUFFER_SECTION() is not supported for SEGGER_RTT_CPU_CACHE_LINE_SIZE != 0"
+ #endif
+ #ifdef SEGGER_RTT_BUFFER_ALIGNMENT
+ #error "Custom SEGGER_RTT_BUFFER_ALIGNMENT is not supported for SEGGER_RTT_CPU_CACHE_LINE_SIZE != 0"
+ #endif
+ #ifdef SEGGER_RTT_ALIGNMENT
+ #error "Custom SEGGER_RTT_ALIGNMENT is not supported for SEGGER_RTT_CPU_CACHE_LINE_SIZE != 0"
+ #endif
+#endif
+
+#ifndef BUFFER_SIZE_UP
+ #define BUFFER_SIZE_UP 1024 // Size of the buffer for terminal output of target, up to host
+#endif
+
+#ifndef BUFFER_SIZE_DOWN
+ #define BUFFER_SIZE_DOWN 16 // Size of the buffer for terminal input to target from host (Usually keyboard input)
+#endif
+
+#ifndef SEGGER_RTT_MAX_NUM_UP_BUFFERS
+ #define SEGGER_RTT_MAX_NUM_UP_BUFFERS 2 // Number of up-buffers (T->H) available on this target
+#endif
+
+#ifndef SEGGER_RTT_MAX_NUM_DOWN_BUFFERS
+ #define SEGGER_RTT_MAX_NUM_DOWN_BUFFERS 2 // Number of down-buffers (H->T) available on this target
+#endif
+
+#ifndef SEGGER_RTT_BUFFER_SECTION
+ #if defined(SEGGER_RTT_SECTION)
+ #define SEGGER_RTT_BUFFER_SECTION SEGGER_RTT_SECTION
+ #endif
+#endif
+
+#ifndef SEGGER_RTT_ALIGNMENT
+ #define SEGGER_RTT_ALIGNMENT SEGGER_RTT_CPU_CACHE_LINE_SIZE
+#endif
+
+#ifndef SEGGER_RTT_BUFFER_ALIGNMENT
+ #define SEGGER_RTT_BUFFER_ALIGNMENT SEGGER_RTT_CPU_CACHE_LINE_SIZE
+#endif
+
+#ifndef SEGGER_RTT_MODE_DEFAULT
+ #define SEGGER_RTT_MODE_DEFAULT SEGGER_RTT_MODE_NO_BLOCK_SKIP
+#endif
+
+#ifndef SEGGER_RTT_LOCK
+ #define SEGGER_RTT_LOCK()
+#endif
+
+#ifndef SEGGER_RTT_UNLOCK
+ #define SEGGER_RTT_UNLOCK()
+#endif
+
+#ifndef STRLEN
+ #define STRLEN(a) strlen((a))
+#endif
+
+#ifndef STRCPY
+ #define STRCPY(pDest, pSrc) strcpy((pDest), (pSrc))
+#endif
+
+#ifndef SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ #define SEGGER_RTT_MEMCPY_USE_BYTELOOP 0
+#endif
+
+#ifndef SEGGER_RTT_MEMCPY
+ #ifdef MEMCPY
+ #define SEGGER_RTT_MEMCPY(pDest, pSrc, NumBytes) MEMCPY((pDest), (pSrc), (NumBytes))
+ #else
+ #define SEGGER_RTT_MEMCPY(pDest, pSrc, NumBytes) memcpy((pDest), (pSrc), (NumBytes))
+ #endif
+#endif
+
+#ifndef MIN
+ #define MIN(a, b) (((a) < (b)) ? (a) : (b))
+#endif
+
+#ifndef MAX
+ #define MAX(a, b) (((a) > (b)) ? (a) : (b))
+#endif
+//
+// For some environments, NULL may not be defined until certain headers are included
+//
+#ifndef NULL
+ #define NULL 0
+#endif
+
+/*********************************************************************
+*
+* Defines, fixed
+*
+**********************************************************************
+*/
+#if (defined __ICCARM__) || (defined __ICCRX__)
+ #define RTT_PRAGMA(P) _Pragma(#P)
+#endif
+
+#if SEGGER_RTT_ALIGNMENT || SEGGER_RTT_BUFFER_ALIGNMENT
+ #if ((defined __GNUC__) || (defined __clang__))
+ #define SEGGER_RTT_ALIGN(Var, Alignment) Var __attribute__ ((aligned (Alignment)))
+ #elif (defined __ICCARM__) || (defined __ICCRX__)
+ #define PRAGMA(A) _Pragma(#A)
+#define SEGGER_RTT_ALIGN(Var, Alignment) RTT_PRAGMA(data_alignment=Alignment) \
+ Var
+ #elif (defined __CC_ARM)
+ #define SEGGER_RTT_ALIGN(Var, Alignment) Var __attribute__ ((aligned (Alignment)))
+ #else
+ #error "Alignment not supported for this compiler."
+ #endif
+#else
+ #define SEGGER_RTT_ALIGN(Var, Alignment) Var
+#endif
+
+#if defined(SEGGER_RTT_SECTION) || defined (SEGGER_RTT_BUFFER_SECTION)
+ #if ((defined __GNUC__) || (defined __clang__))
+ #define SEGGER_RTT_PUT_SECTION(Var, Section) __attribute__ ((section (Section))) Var
+ #elif (defined __ICCARM__) || (defined __ICCRX__)
+#define SEGGER_RTT_PUT_SECTION(Var, Section) RTT_PRAGMA(location=Section) \
+ Var
+ #elif (defined __CC_ARM)
+ #define SEGGER_RTT_PUT_SECTION(Var, Section) __attribute__ ((section (Section), zero_init)) Var
+ #else
+ #error "Section placement not supported for this compiler."
+ #endif
+#else
+ #define SEGGER_RTT_PUT_SECTION(Var, Section) Var
+#endif
+
+#if SEGGER_RTT_ALIGNMENT
+ #define SEGGER_RTT_CB_ALIGN(Var) SEGGER_RTT_ALIGN(Var, SEGGER_RTT_ALIGNMENT)
+#else
+ #define SEGGER_RTT_CB_ALIGN(Var) Var
+#endif
+
+#if SEGGER_RTT_BUFFER_ALIGNMENT
+ #define SEGGER_RTT_BUFFER_ALIGN(Var) SEGGER_RTT_ALIGN(Var, SEGGER_RTT_BUFFER_ALIGNMENT)
+#else
+ #define SEGGER_RTT_BUFFER_ALIGN(Var) Var
+#endif
+
+
+#if defined(SEGGER_RTT_SECTION)
+ #define SEGGER_RTT_PUT_CB_SECTION(Var) SEGGER_RTT_PUT_SECTION(Var, SEGGER_RTT_SECTION)
+#else
+ #define SEGGER_RTT_PUT_CB_SECTION(Var) Var
+#endif
+
+#if defined(SEGGER_RTT_BUFFER_SECTION)
+ #define SEGGER_RTT_PUT_BUFFER_SECTION(Var) SEGGER_RTT_PUT_SECTION(Var, SEGGER_RTT_BUFFER_SECTION)
+#else
+ #define SEGGER_RTT_PUT_BUFFER_SECTION(Var) Var
+#endif
+
+/*********************************************************************
+*
+* Static const data
+*
+**********************************************************************
+*/
+
+static const unsigned char _aTerminalId[16] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
+
+/*********************************************************************
+*
+* Static data
+*
+**********************************************************************
+*/
+
+//
+// RTT Control Block and allocate buffers for channel 0
+//
+#if SEGGER_RTT_CPU_CACHE_LINE_SIZE
+ #if ((defined __GNUC__) || (defined __clang__))
+ SEGGER_RTT_CB _SEGGER_RTT __attribute__ ((aligned (SEGGER_RTT_CPU_CACHE_LINE_SIZE)));
+ static char _acUpBuffer [SEGGER_RTT__ROUND_UP_2_CACHE_LINE_SIZE(BUFFER_SIZE_UP)] __attribute__ ((aligned (SEGGER_RTT_CPU_CACHE_LINE_SIZE)));
+ static char _acDownBuffer[SEGGER_RTT__ROUND_UP_2_CACHE_LINE_SIZE(BUFFER_SIZE_DOWN)] __attribute__ ((aligned (SEGGER_RTT_CPU_CACHE_LINE_SIZE)));
+ #elif (defined __ICCARM__)
+ #pragma data_alignment=SEGGER_RTT_CPU_CACHE_LINE_SIZE
+ SEGGER_RTT_CB _SEGGER_RTT;
+ #pragma data_alignment=SEGGER_RTT_CPU_CACHE_LINE_SIZE
+ static char _acUpBuffer [SEGGER_RTT__ROUND_UP_2_CACHE_LINE_SIZE(BUFFER_SIZE_UP)];
+ #pragma data_alignment=SEGGER_RTT_CPU_CACHE_LINE_SIZE
+ static char _acDownBuffer[SEGGER_RTT__ROUND_UP_2_CACHE_LINE_SIZE(BUFFER_SIZE_DOWN)];
+ #else
+ #error "Don't know how to place _SEGGER_RTT, _acUpBuffer, _acDownBuffer cache-line aligned"
+ #endif
+#else
+ SEGGER_RTT_PUT_CB_SECTION(SEGGER_RTT_CB_ALIGN(SEGGER_RTT_CB _SEGGER_RTT));
+ SEGGER_RTT_PUT_BUFFER_SECTION(SEGGER_RTT_BUFFER_ALIGN(static char _acUpBuffer [BUFFER_SIZE_UP]));
+ SEGGER_RTT_PUT_BUFFER_SECTION(SEGGER_RTT_BUFFER_ALIGN(static char _acDownBuffer[BUFFER_SIZE_DOWN]));
+#endif
+
+static unsigned char _ActiveTerminal;
+
+/*********************************************************************
+*
+* Static functions
+*
+**********************************************************************
+*/
+
+/*********************************************************************
+*
+* _DoInit()
+*
+* Function description
+* Initializes the control block an buffers.
+*
+* Notes
+* (1) May only be called via INIT() to avoid overriding settings.
+* The only exception is SEGGER_RTT_Init(), to make an intentional override possible.
+*/
+ #define INIT() \
+ do { \
+ volatile SEGGER_RTT_CB* pRTTCBInit; \
+ pRTTCBInit = (volatile SEGGER_RTT_CB*)((char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); \
+ if (pRTTCBInit->acID[0] != 'S') { \
+ _DoInit(); \
+ } \
+ } while (0)
+
+static void _DoInit(void) {
+ volatile SEGGER_RTT_CB* p; // Volatile to make sure that compiler cannot change the order of accesses to the control block
+ static const char _aInitStr[] = "\0\0\0\0\0\0TTR REGGES"; // Init complete ID string to make sure that things also work if RTT is linked to a no-init memory area
+ unsigned i;
+ //
+ // Initialize control block
+ //
+ p = (volatile SEGGER_RTT_CB*)((char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access control block uncached so that nothing in the cache ever becomes dirty and all changes are visible in HW directly
+ memset((SEGGER_RTT_CB*)p, 0, sizeof(_SEGGER_RTT)); // Make sure that the RTT CB is always zero initialized.
+ p->MaxNumUpBuffers = SEGGER_RTT_MAX_NUM_UP_BUFFERS;
+ p->MaxNumDownBuffers = SEGGER_RTT_MAX_NUM_DOWN_BUFFERS;
+ //
+ // Initialize up buffer 0
+ //
+ p->aUp[0].sName = "Terminal";
+ p->aUp[0].pBuffer = _acUpBuffer;
+ p->aUp[0].SizeOfBuffer = BUFFER_SIZE_UP;
+ p->aUp[0].RdOff = 0u;
+ p->aUp[0].WrOff = 0u;
+ p->aUp[0].Flags = SEGGER_RTT_MODE_DEFAULT;
+ //
+ // Initialize down buffer 0
+ //
+ p->aDown[0].sName = "Terminal";
+ p->aDown[0].pBuffer = _acDownBuffer;
+ p->aDown[0].SizeOfBuffer = BUFFER_SIZE_DOWN;
+ p->aDown[0].RdOff = 0u;
+ p->aDown[0].WrOff = 0u;
+ p->aDown[0].Flags = SEGGER_RTT_MODE_DEFAULT;
+ //
+ // Finish initialization of the control block.
+ // Copy Id string backwards to make sure that "SEGGER RTT" is not found in initializer memory (usually flash),
+ // as this would cause J-Link to "find" the control block at a wrong address.
+ //
+ RTT__DMB(); // Force order of memory accesses for cores that may perform out-of-order memory accesses
+ for (i = 0; i < sizeof(_aInitStr) - 1; ++i) {
+ p->acID[i] = _aInitStr[sizeof(_aInitStr) - 2 - i]; // Skip terminating \0 at the end of the array
+ }
+ RTT__DMB(); // Force order of memory accesses for cores that may perform out-of-order memory accesses
+}
+
+/*********************************************************************
+*
+* _WriteBlocking()
+*
+* Function description
+* Stores a specified number of characters in SEGGER RTT ring buffer
+* and updates the associated write pointer which is periodically
+* read by the host.
+* The caller is responsible for managing the write chunk sizes as
+* _WriteBlocking() will block until all data has been posted successfully.
+*
+* Parameters
+* pRing Ring buffer to post to.
+* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
+* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
+*
+* Return value
+* >= 0 - Number of bytes written into buffer.
+*/
+static unsigned _WriteBlocking(SEGGER_RTT_BUFFER_UP* pRing, const char* pBuffer, unsigned NumBytes) {
+ unsigned NumBytesToWrite;
+ unsigned NumBytesWritten;
+ unsigned RdOff;
+ unsigned WrOff;
+ volatile char* pDst;
+ //
+ // Write data to buffer and handle wrap-around if necessary
+ //
+ NumBytesWritten = 0u;
+ WrOff = pRing->WrOff;
+ do {
+ RdOff = pRing->RdOff; // May be changed by host (debug probe) in the meantime
+ if (RdOff > WrOff) {
+ NumBytesToWrite = RdOff - WrOff - 1u;
+ } else {
+ NumBytesToWrite = pRing->SizeOfBuffer - (WrOff - RdOff + 1u);
+ }
+ NumBytesToWrite = MIN(NumBytesToWrite, (pRing->SizeOfBuffer - WrOff)); // Number of bytes that can be written until buffer wrap-around
+ NumBytesToWrite = MIN(NumBytesToWrite, NumBytes);
+ pDst = (pRing->pBuffer + WrOff) + SEGGER_RTT_UNCACHED_OFF;
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ NumBytesWritten += NumBytesToWrite;
+ NumBytes -= NumBytesToWrite;
+ WrOff += NumBytesToWrite;
+ while (NumBytesToWrite--) {
+ *pDst++ = *pBuffer++;
+ };
+#else
+ SEGGER_RTT_MEMCPY((void*)pDst, pBuffer, NumBytesToWrite);
+ NumBytesWritten += NumBytesToWrite;
+ pBuffer += NumBytesToWrite;
+ NumBytes -= NumBytesToWrite;
+ WrOff += NumBytesToWrite;
+#endif
+ if (WrOff == pRing->SizeOfBuffer) {
+ WrOff = 0u;
+ }
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = WrOff;
+ } while (NumBytes);
+ return NumBytesWritten;
+}
+
+/*********************************************************************
+*
+* _WriteNoCheck()
+*
+* Function description
+* Stores a specified number of characters in SEGGER RTT ring buffer
+* and updates the associated write pointer which is periodically
+* read by the host.
+* It is callers responsibility to make sure data actually fits in buffer.
+*
+* Parameters
+* pRing Ring buffer to post to.
+* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
+* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
+*
+* Notes
+* (1) If there might not be enough space in the "Up"-buffer, call _WriteBlocking
+*/
+static void _WriteNoCheck(SEGGER_RTT_BUFFER_UP* pRing, const char* pData, unsigned NumBytes) {
+ unsigned NumBytesAtOnce;
+ unsigned WrOff;
+ unsigned Rem;
+ volatile char* pDst;
+
+ WrOff = pRing->WrOff;
+ Rem = pRing->SizeOfBuffer - WrOff;
+ if (Rem > NumBytes) {
+ //
+ // All data fits before wrap around
+ //
+ pDst = (pRing->pBuffer + WrOff) + SEGGER_RTT_UNCACHED_OFF;
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ WrOff += NumBytes;
+ while (NumBytes--) {
+ *pDst++ = *pData++;
+ };
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = WrOff;
+#else
+ SEGGER_RTT_MEMCPY((void*)pDst, pData, NumBytes);
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = WrOff + NumBytes;
+#endif
+ } else {
+ //
+ // We reach the end of the buffer, so need to wrap around
+ //
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ pDst = (pRing->pBuffer + WrOff) + SEGGER_RTT_UNCACHED_OFF;
+ NumBytesAtOnce = Rem;
+ while (NumBytesAtOnce--) {
+ *pDst++ = *pData++;
+ };
+ pDst = pRing->pBuffer + SEGGER_RTT_UNCACHED_OFF;
+ NumBytesAtOnce = NumBytes - Rem;
+ while (NumBytesAtOnce--) {
+ *pDst++ = *pData++;
+ };
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = NumBytes - Rem;
+#else
+ NumBytesAtOnce = Rem;
+ pDst = (pRing->pBuffer + WrOff) + SEGGER_RTT_UNCACHED_OFF;
+ SEGGER_RTT_MEMCPY((void*)pDst, pData, NumBytesAtOnce);
+ NumBytesAtOnce = NumBytes - Rem;
+ pDst = pRing->pBuffer + SEGGER_RTT_UNCACHED_OFF;
+ SEGGER_RTT_MEMCPY((void*)pDst, pData + Rem, NumBytesAtOnce);
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = NumBytesAtOnce;
+#endif
+ }
+}
+
+/*********************************************************************
+*
+* _PostTerminalSwitch()
+*
+* Function description
+* Switch terminal to the given terminal ID. It is the caller's
+* responsibility to ensure the terminal ID is correct and there is
+* enough space in the buffer for this to complete successfully.
+*
+* Parameters
+* pRing Ring buffer to post to.
+* TerminalId Terminal ID to switch to.
+*/
+static void _PostTerminalSwitch(SEGGER_RTT_BUFFER_UP* pRing, unsigned char TerminalId) {
+ unsigned char ac[2];
+
+ ac[0] = 0xFFu;
+ ac[1] = _aTerminalId[TerminalId]; // Caller made already sure that TerminalId does not exceed our terminal limit
+ _WriteBlocking(pRing, (const char*)ac, 2u);
+}
+
+/*********************************************************************
+*
+* _GetAvailWriteSpace()
+*
+* Function description
+* Returns the number of bytes that can be written to the ring
+* buffer without blocking.
+*
+* Parameters
+* pRing Ring buffer to check.
+*
+* Return value
+* Number of bytes that are free in the buffer.
+*/
+static unsigned _GetAvailWriteSpace(SEGGER_RTT_BUFFER_UP* pRing) {
+ unsigned RdOff;
+ unsigned WrOff;
+ unsigned r;
+ //
+ // Avoid warnings regarding volatile access order. It's not a problem
+ // in this case, but dampen compiler enthusiasm.
+ //
+ RdOff = pRing->RdOff;
+ WrOff = pRing->WrOff;
+ if (RdOff <= WrOff) {
+ r = pRing->SizeOfBuffer - 1u - WrOff + RdOff;
+ } else {
+ r = RdOff - WrOff - 1u;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* Public code
+*
+**********************************************************************
+*/
+
+/*********************************************************************
+*
+* SEGGER_RTT_ReadUpBufferNoLock()
+*
+* Function description
+* Reads characters from SEGGER real-time-terminal control block
+* which have been previously stored by the application.
+* Do not lock against interrupts and multiple access.
+* Used to do the same operation that J-Link does, to transfer
+* RTT data via other channels, such as TCP/IP or UART.
+*
+* Parameters
+* BufferIndex Index of Up-buffer to be used.
+* pBuffer Pointer to buffer provided by target application, to copy characters from RTT-up-buffer to.
+* BufferSize Size of the target application buffer.
+*
+* Return value
+* Number of bytes that have been read.
+*
+* Additional information
+* This function must not be called when J-Link might also do RTT.
+*/
+unsigned SEGGER_RTT_ReadUpBufferNoLock(unsigned BufferIndex, void* pData, unsigned BufferSize) {
+ unsigned NumBytesRem;
+ unsigned NumBytesRead;
+ unsigned RdOff;
+ unsigned WrOff;
+ unsigned char* pBuffer;
+ SEGGER_RTT_BUFFER_UP* pRing;
+ volatile char* pSrc;
+
+ INIT();
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ pBuffer = (unsigned char*)pData;
+ RdOff = pRing->RdOff;
+ WrOff = pRing->WrOff;
+ NumBytesRead = 0u;
+ //
+ // Read from current read position to wrap-around of buffer, first
+ //
+ if (RdOff > WrOff) {
+ NumBytesRem = pRing->SizeOfBuffer - RdOff;
+ NumBytesRem = MIN(NumBytesRem, BufferSize);
+ pSrc = (pRing->pBuffer + RdOff) + SEGGER_RTT_UNCACHED_OFF;
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ NumBytesRead += NumBytesRem;
+ BufferSize -= NumBytesRem;
+ RdOff += NumBytesRem;
+ while (NumBytesRem--) {
+ *pBuffer++ = *pSrc++;
+ };
+#else
+ SEGGER_RTT_MEMCPY(pBuffer, (void*)pSrc, NumBytesRem);
+ NumBytesRead += NumBytesRem;
+ pBuffer += NumBytesRem;
+ BufferSize -= NumBytesRem;
+ RdOff += NumBytesRem;
+#endif
+ //
+ // Handle wrap-around of buffer
+ //
+ if (RdOff == pRing->SizeOfBuffer) {
+ RdOff = 0u;
+ }
+ }
+ //
+ // Read remaining items of buffer
+ //
+ NumBytesRem = WrOff - RdOff;
+ NumBytesRem = MIN(NumBytesRem, BufferSize);
+ if (NumBytesRem > 0u) {
+ pSrc = (pRing->pBuffer + RdOff) + SEGGER_RTT_UNCACHED_OFF;
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ NumBytesRead += NumBytesRem;
+ BufferSize -= NumBytesRem;
+ RdOff += NumBytesRem;
+ while (NumBytesRem--) {
+ *pBuffer++ = *pSrc++;
+ };
+#else
+ SEGGER_RTT_MEMCPY(pBuffer, (void*)pSrc, NumBytesRem);
+ NumBytesRead += NumBytesRem;
+ pBuffer += NumBytesRem;
+ BufferSize -= NumBytesRem;
+ RdOff += NumBytesRem;
+#endif
+ }
+ //
+ // Update read offset of buffer
+ //
+ if (NumBytesRead) {
+ pRing->RdOff = RdOff;
+ }
+ //
+ return NumBytesRead;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_ReadNoLock()
+*
+* Function description
+* Reads characters from SEGGER real-time-terminal control block
+* which have been previously stored by the host.
+* Do not lock against interrupts and multiple access.
+*
+* Parameters
+* BufferIndex Index of Down-buffer to be used (e.g. 0 for "Terminal").
+* pBuffer Pointer to buffer provided by target application, to copy characters from RTT-down-buffer to.
+* BufferSize Size of the target application buffer.
+*
+* Return value
+* Number of bytes that have been read.
+*/
+unsigned SEGGER_RTT_ReadNoLock(unsigned BufferIndex, void* pData, unsigned BufferSize) {
+ unsigned NumBytesRem;
+ unsigned NumBytesRead;
+ unsigned RdOff;
+ unsigned WrOff;
+ unsigned char* pBuffer;
+ SEGGER_RTT_BUFFER_DOWN* pRing;
+ volatile char* pSrc;
+ //
+ INIT();
+ pRing = (SEGGER_RTT_BUFFER_DOWN*)((char*)&_SEGGER_RTT.aDown[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ pBuffer = (unsigned char*)pData;
+ RdOff = pRing->RdOff;
+ WrOff = pRing->WrOff;
+ NumBytesRead = 0u;
+ //
+ // Read from current read position to wrap-around of buffer, first
+ //
+ if (RdOff > WrOff) {
+ NumBytesRem = pRing->SizeOfBuffer - RdOff;
+ NumBytesRem = MIN(NumBytesRem, BufferSize);
+ pSrc = (pRing->pBuffer + RdOff) + SEGGER_RTT_UNCACHED_OFF;
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ NumBytesRead += NumBytesRem;
+ BufferSize -= NumBytesRem;
+ RdOff += NumBytesRem;
+ while (NumBytesRem--) {
+ *pBuffer++ = *pSrc++;
+ };
+#else
+ SEGGER_RTT_MEMCPY(pBuffer, (void*)pSrc, NumBytesRem);
+ NumBytesRead += NumBytesRem;
+ pBuffer += NumBytesRem;
+ BufferSize -= NumBytesRem;
+ RdOff += NumBytesRem;
+#endif
+ //
+ // Handle wrap-around of buffer
+ //
+ if (RdOff == pRing->SizeOfBuffer) {
+ RdOff = 0u;
+ }
+ }
+ //
+ // Read remaining items of buffer
+ //
+ NumBytesRem = WrOff - RdOff;
+ NumBytesRem = MIN(NumBytesRem, BufferSize);
+ if (NumBytesRem > 0u) {
+ pSrc = (pRing->pBuffer + RdOff) + SEGGER_RTT_UNCACHED_OFF;
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ NumBytesRead += NumBytesRem;
+ BufferSize -= NumBytesRem;
+ RdOff += NumBytesRem;
+ while (NumBytesRem--) {
+ *pBuffer++ = *pSrc++;
+ };
+#else
+ SEGGER_RTT_MEMCPY(pBuffer, (void*)pSrc, NumBytesRem);
+ NumBytesRead += NumBytesRem;
+ pBuffer += NumBytesRem;
+ BufferSize -= NumBytesRem;
+ RdOff += NumBytesRem;
+#endif
+ }
+ if (NumBytesRead) {
+ pRing->RdOff = RdOff;
+ }
+ //
+ return NumBytesRead;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_ReadUpBuffer
+*
+* Function description
+* Reads characters from SEGGER real-time-terminal control block
+* which have been previously stored by the application.
+* Used to do the same operation that J-Link does, to transfer
+* RTT data via other channels, such as TCP/IP or UART.
+*
+* Parameters
+* BufferIndex Index of Up-buffer to be used.
+* pBuffer Pointer to buffer provided by target application, to copy characters from RTT-up-buffer to.
+* BufferSize Size of the target application buffer.
+*
+* Return value
+* Number of bytes that have been read.
+*
+* Additional information
+* This function must not be called when J-Link might also do RTT.
+* This function locks against all other RTT operations. I.e. during
+* the read operation, writing is also locked.
+* If only one consumer reads from the up buffer,
+* call sEGGER_RTT_ReadUpBufferNoLock() instead.
+*/
+unsigned SEGGER_RTT_ReadUpBuffer(unsigned BufferIndex, void* pBuffer, unsigned BufferSize) {
+ unsigned NumBytesRead;
+
+ SEGGER_RTT_LOCK();
+ //
+ // Call the non-locking read function
+ //
+ NumBytesRead = SEGGER_RTT_ReadUpBufferNoLock(BufferIndex, pBuffer, BufferSize);
+ //
+ // Finish up.
+ //
+ SEGGER_RTT_UNLOCK();
+ //
+ return NumBytesRead;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_Read
+*
+* Function description
+* Reads characters from SEGGER real-time-terminal control block
+* which have been previously stored by the host.
+*
+* Parameters
+* BufferIndex Index of Down-buffer to be used (e.g. 0 for "Terminal").
+* pBuffer Pointer to buffer provided by target application, to copy characters from RTT-down-buffer to.
+* BufferSize Size of the target application buffer.
+*
+* Return value
+* Number of bytes that have been read.
+*/
+unsigned SEGGER_RTT_Read(unsigned BufferIndex, void* pBuffer, unsigned BufferSize) {
+ unsigned NumBytesRead;
+
+ SEGGER_RTT_LOCK();
+ //
+ // Call the non-locking read function
+ //
+ NumBytesRead = SEGGER_RTT_ReadNoLock(BufferIndex, pBuffer, BufferSize);
+ //
+ // Finish up.
+ //
+ SEGGER_RTT_UNLOCK();
+ //
+ return NumBytesRead;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_WriteWithOverwriteNoLock
+*
+* Function description
+* Stores a specified number of characters in SEGGER RTT
+* control block.
+* SEGGER_RTT_WriteWithOverwriteNoLock does not lock the application
+* and overwrites data if the data does not fit into the buffer.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
+* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
+*
+* Notes
+* (1) If there is not enough space in the "Up"-buffer, data is overwritten.
+* (2) For performance reasons this function does not call Init()
+* and may only be called after RTT has been initialized.
+* Either by calling SEGGER_RTT_Init() or calling another RTT API function first.
+* (3) Do not use SEGGER_RTT_WriteWithOverwriteNoLock if a J-Link
+* connection reads RTT data.
+*/
+void SEGGER_RTT_WriteWithOverwriteNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
+ const char* pData;
+ SEGGER_RTT_BUFFER_UP* pRing;
+ unsigned Avail;
+ volatile char* pDst;
+ //
+ // Get "to-host" ring buffer and copy some elements into local variables.
+ //
+ pData = (const char *)pBuffer;
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ //
+ // Check if we will overwrite data and need to adjust the RdOff.
+ //
+ if (pRing->WrOff == pRing->RdOff) {
+ Avail = pRing->SizeOfBuffer - 1u;
+ } else if ( pRing->WrOff < pRing->RdOff) {
+ Avail = pRing->RdOff - pRing->WrOff - 1u;
+ } else {
+ Avail = pRing->RdOff - pRing->WrOff - 1u + pRing->SizeOfBuffer;
+ }
+ if (NumBytes > Avail) {
+ pRing->RdOff += (NumBytes - Avail);
+ while (pRing->RdOff >= pRing->SizeOfBuffer) {
+ pRing->RdOff -= pRing->SizeOfBuffer;
+ }
+ }
+ //
+ // Write all data, no need to check the RdOff, but possibly handle multiple wrap-arounds
+ //
+ Avail = pRing->SizeOfBuffer - pRing->WrOff;
+ do {
+ if (Avail > NumBytes) {
+ //
+ // Last round
+ //
+ pDst = (pRing->pBuffer + pRing->WrOff) + SEGGER_RTT_UNCACHED_OFF;
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ Avail = NumBytes;
+ while (NumBytes--) {
+ *pDst++ = *pData++;
+ };
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff += Avail;
+#else
+ SEGGER_RTT_MEMCPY((void*)pDst, pData, NumBytes);
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff += NumBytes;
+#endif
+ break;
+ } else {
+ //
+ // Wrap-around necessary, write until wrap-around and reset WrOff
+ //
+ pDst = (pRing->pBuffer + pRing->WrOff) + SEGGER_RTT_UNCACHED_OFF;
+#if SEGGER_RTT_MEMCPY_USE_BYTELOOP
+ NumBytes -= Avail;
+ while (Avail--) {
+ *pDst++ = *pData++;
+ };
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = 0;
+#else
+ SEGGER_RTT_MEMCPY((void*)pDst, pData, Avail);
+ pData += Avail;
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = 0;
+ NumBytes -= Avail;
+#endif
+ Avail = (pRing->SizeOfBuffer - 1);
+ }
+ } while (NumBytes);
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_WriteSkipNoLock
+*
+* Function description
+* Stores a specified number of characters in SEGGER RTT
+* control block which is then read by the host.
+* SEGGER_RTT_WriteSkipNoLock does not lock the application and
+* skips all data, if the data does not fit into the buffer.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
+* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
+* MUST be > 0!!!
+* This is done for performance reasons, so no initial check has do be done.
+*
+* Return value
+* 1: Data has been copied
+* 0: No space, data has not been copied
+*
+* Notes
+* (1) If there is not enough space in the "Up"-buffer, all data is dropped.
+* (2) For performance reasons this function does not call Init()
+* and may only be called after RTT has been initialized.
+* Either by calling SEGGER_RTT_Init() or calling another RTT API function first.
+*/
+#if (RTT_USE_ASM == 0)
+unsigned SEGGER_RTT_WriteSkipNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
+ const char* pData;
+ SEGGER_RTT_BUFFER_UP* pRing;
+ unsigned Avail;
+ unsigned RdOff;
+ unsigned WrOff;
+ unsigned Rem;
+ volatile char* pDst;
+ //
+ // Cases:
+ // 1) RdOff <= WrOff => Space until wrap-around is sufficient
+ // 2) RdOff <= WrOff => Space after wrap-around needed (copy in 2 chunks)
+ // 3) RdOff < WrOff => No space in buf
+ // 4) RdOff > WrOff => Space is sufficient
+ // 5) RdOff > WrOff => No space in buf
+ //
+ // 1) is the most common case for large buffers and assuming that J-Link reads the data fast enough
+ //
+ pData = (const char *)pBuffer;
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ RdOff = pRing->RdOff;
+ WrOff = pRing->WrOff;
+ pDst = (pRing->pBuffer + WrOff) + SEGGER_RTT_UNCACHED_OFF;
+ if (RdOff <= WrOff) { // Case 1), 2) or 3)
+ Avail = pRing->SizeOfBuffer - WrOff - 1u; // Space until wrap-around (assume 1 byte not usable for case that RdOff == 0)
+ if (Avail >= NumBytes) { // Case 1)?
+ memcpy((void*)pDst, pData, NumBytes);
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = WrOff + NumBytes;
+ return 1;
+ }
+ Avail += RdOff; // Space incl. wrap-around
+ if (Avail >= NumBytes) { // Case 2? => If not, we have case 3) (does not fit)
+ Rem = pRing->SizeOfBuffer - WrOff; // Space until end of buffer
+ memcpy((void*)pDst, pData, Rem); // Copy 1st chunk
+ NumBytes -= Rem;
+ //
+ // Special case: First check that assumed RdOff == 0 calculated that last element before wrap-around could not be used
+ // But 2nd check (considering space until wrap-around and until RdOff) revealed that RdOff is not 0, so we can use the last element
+ // In this case, we may use a copy straight until buffer end anyway without needing to copy 2 chunks
+ // Therefore, check if 2nd memcpy is necessary at all
+ //
+ if (NumBytes) {
+ pDst = pRing->pBuffer + SEGGER_RTT_UNCACHED_OFF;
+ memcpy((void*)pDst, pData + Rem, NumBytes);
+ }
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = NumBytes;
+ return 1;
+ }
+ } else { // Potential case 4)
+ Avail = RdOff - WrOff - 1u;
+ if (Avail >= NumBytes) { // Case 4)? => If not, we have case 5) (does not fit)
+ memcpy((void*)pDst, pData, NumBytes);
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = WrOff + NumBytes;
+ return 1;
+ }
+ }
+ return 0; // No space in buffer
+}
+#endif
+
+/*********************************************************************
+*
+* SEGGER_RTT_WriteDownBufferNoLock
+*
+* Function description
+* Stores a specified number of characters in SEGGER RTT
+* control block inside a <Down> buffer.
+* SEGGER_RTT_WriteDownBufferNoLock does not lock the application.
+* Used to do the same operation that J-Link does, to transfer
+* RTT data from other channels, such as TCP/IP or UART.
+*
+* Parameters
+* BufferIndex Index of "Down"-buffer to be used.
+* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
+* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
+*
+* Return value
+* Number of bytes which have been stored in the "Down"-buffer.
+*
+* Notes
+* (1) Data is stored according to buffer flags.
+* (2) For performance reasons this function does not call Init()
+* and may only be called after RTT has been initialized.
+* Either by calling SEGGER_RTT_Init() or calling another RTT API function first.
+*
+* Additional information
+* This function must not be called when J-Link might also do RTT.
+*/
+unsigned SEGGER_RTT_WriteDownBufferNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
+ unsigned Status;
+ unsigned Avail;
+ const char* pData;
+ SEGGER_RTT_BUFFER_UP* pRing;
+ //
+ // Get "to-target" ring buffer.
+ // It is save to cast that to a "to-host" buffer. Up and Down buffer differ in volatility of offsets that might be modified by J-Link.
+ //
+ pData = (const char *)pBuffer;
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aDown[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ //
+ // How we output depends upon the mode...
+ //
+ switch (pRing->Flags) {
+ case SEGGER_RTT_MODE_NO_BLOCK_SKIP:
+ //
+ // If we are in skip mode and there is no space for the whole
+ // of this output, don't bother.
+ //
+ Avail = _GetAvailWriteSpace(pRing);
+ if (Avail < NumBytes) {
+ Status = 0u;
+ } else {
+ Status = NumBytes;
+ _WriteNoCheck(pRing, pData, NumBytes);
+ }
+ break;
+ case SEGGER_RTT_MODE_NO_BLOCK_TRIM:
+ //
+ // If we are in trim mode, trim to what we can output without blocking.
+ //
+ Avail = _GetAvailWriteSpace(pRing);
+ Status = Avail < NumBytes ? Avail : NumBytes;
+ _WriteNoCheck(pRing, pData, Status);
+ break;
+ case SEGGER_RTT_MODE_BLOCK_IF_FIFO_FULL:
+ //
+ // If we are in blocking mode, output everything.
+ //
+ Status = _WriteBlocking(pRing, pData, NumBytes);
+ break;
+ default:
+ Status = 0u;
+ break;
+ }
+ //
+ // Finish up.
+ //
+ return Status;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_WriteNoLock
+*
+* Function description
+* Stores a specified number of characters in SEGGER RTT
+* control block which is then read by the host.
+* SEGGER_RTT_WriteNoLock does not lock the application.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
+* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
+*
+* Return value
+* Number of bytes which have been stored in the "Up"-buffer.
+*
+* Notes
+* (1) Data is stored according to buffer flags.
+* (2) For performance reasons this function does not call Init()
+* and may only be called after RTT has been initialized.
+* Either by calling SEGGER_RTT_Init() or calling another RTT API function first.
+*/
+unsigned SEGGER_RTT_WriteNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
+ unsigned Status;
+ unsigned Avail;
+ const char* pData;
+ SEGGER_RTT_BUFFER_UP* pRing;
+ //
+ // Get "to-host" ring buffer.
+ //
+ pData = (const char *)pBuffer;
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ //
+ // How we output depends upon the mode...
+ //
+ switch (pRing->Flags) {
+ case SEGGER_RTT_MODE_NO_BLOCK_SKIP:
+ //
+ // If we are in skip mode and there is no space for the whole
+ // of this output, don't bother.
+ //
+ Avail = _GetAvailWriteSpace(pRing);
+ if (Avail < NumBytes) {
+ Status = 0u;
+ } else {
+ Status = NumBytes;
+ _WriteNoCheck(pRing, pData, NumBytes);
+ }
+ break;
+ case SEGGER_RTT_MODE_NO_BLOCK_TRIM:
+ //
+ // If we are in trim mode, trim to what we can output without blocking.
+ //
+ Avail = _GetAvailWriteSpace(pRing);
+ Status = Avail < NumBytes ? Avail : NumBytes;
+ _WriteNoCheck(pRing, pData, Status);
+ break;
+ case SEGGER_RTT_MODE_BLOCK_IF_FIFO_FULL:
+ //
+ // If we are in blocking mode, output everything.
+ //
+ Status = _WriteBlocking(pRing, pData, NumBytes);
+ break;
+ default:
+ Status = 0u;
+ break;
+ }
+ //
+ // Finish up.
+ //
+ return Status;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_WriteDownBuffer
+*
+* Function description
+* Stores a specified number of characters in SEGGER RTT control block in a <Down> buffer.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
+* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
+*
+* Return value
+* Number of bytes which have been stored in the "Down"-buffer.
+*
+* Notes
+* (1) Data is stored according to buffer flags.
+*
+* Additional information
+* This function must not be called when J-Link might also do RTT.
+* This function locks against all other RTT operations. I.e. during
+* the write operation, writing from the application is also locked.
+* If only one consumer writes to the down buffer,
+* call SEGGER_RTT_WriteDownBufferNoLock() instead.
+*/
+unsigned SEGGER_RTT_WriteDownBuffer(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
+ unsigned Status;
+
+ INIT();
+ SEGGER_RTT_LOCK();
+ Status = SEGGER_RTT_WriteDownBufferNoLock(BufferIndex, pBuffer, NumBytes); // Call the non-locking write function
+ SEGGER_RTT_UNLOCK();
+ return Status;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_Write
+*
+* Function description
+* Stores a specified number of characters in SEGGER RTT
+* control block which is then read by the host.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* pBuffer Pointer to character array. Does not need to point to a \0 terminated string.
+* NumBytes Number of bytes to be stored in the SEGGER RTT control block.
+*
+* Return value
+* Number of bytes which have been stored in the "Up"-buffer.
+*
+* Notes
+* (1) Data is stored according to buffer flags.
+*/
+unsigned SEGGER_RTT_Write(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes) {
+ unsigned Status;
+
+ INIT();
+ SEGGER_RTT_LOCK();
+ Status = SEGGER_RTT_WriteNoLock(BufferIndex, pBuffer, NumBytes); // Call the non-locking write function
+ SEGGER_RTT_UNLOCK();
+ return Status;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_WriteString
+*
+* Function description
+* Stores string in SEGGER RTT control block.
+* This data is read by the host.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* s Pointer to string.
+*
+* Return value
+* Number of bytes which have been stored in the "Up"-buffer.
+*
+* Notes
+* (1) Data is stored according to buffer flags.
+* (2) String passed to this function has to be \0 terminated
+* (3) \0 termination character is *not* stored in RTT buffer
+*/
+unsigned SEGGER_RTT_WriteString(unsigned BufferIndex, const char* s) {
+ unsigned Len;
+
+ Len = STRLEN(s);
+ return SEGGER_RTT_Write(BufferIndex, s, Len);
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_PutCharSkipNoLock
+*
+* Function description
+* Stores a single character/byte in SEGGER RTT buffer.
+* SEGGER_RTT_PutCharSkipNoLock does not lock the application and
+* skips the byte, if it does not fit into the buffer.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* c Byte to be stored.
+*
+* Return value
+* Number of bytes which have been stored in the "Up"-buffer.
+*
+* Notes
+* (1) If there is not enough space in the "Up"-buffer, the character is dropped.
+* (2) For performance reasons this function does not call Init()
+* and may only be called after RTT has been initialized.
+* Either by calling SEGGER_RTT_Init() or calling another RTT API function first.
+*/
+
+unsigned SEGGER_RTT_PutCharSkipNoLock(unsigned BufferIndex, char c) {
+ SEGGER_RTT_BUFFER_UP* pRing;
+ unsigned WrOff;
+ unsigned Status;
+ volatile char* pDst;
+ //
+ // Get "to-host" ring buffer.
+ //
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ //
+ // Get write position and handle wrap-around if necessary
+ //
+ WrOff = pRing->WrOff + 1;
+ if (WrOff == pRing->SizeOfBuffer) {
+ WrOff = 0;
+ }
+ //
+ // Output byte if free space is available
+ //
+ if (WrOff != pRing->RdOff) {
+ pDst = (pRing->pBuffer + pRing->WrOff) + SEGGER_RTT_UNCACHED_OFF;
+ *pDst = c;
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = WrOff;
+ Status = 1;
+ } else {
+ Status = 0;
+ }
+ //
+ return Status;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_PutCharSkip
+*
+* Function description
+* Stores a single character/byte in SEGGER RTT buffer.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* c Byte to be stored.
+*
+* Return value
+* Number of bytes which have been stored in the "Up"-buffer.
+*
+* Notes
+* (1) If there is not enough space in the "Up"-buffer, the character is dropped.
+*/
+
+unsigned SEGGER_RTT_PutCharSkip(unsigned BufferIndex, char c) {
+ SEGGER_RTT_BUFFER_UP* pRing;
+ unsigned WrOff;
+ unsigned Status;
+ volatile char* pDst;
+ //
+ // Prepare
+ //
+ INIT();
+ SEGGER_RTT_LOCK();
+ //
+ // Get "to-host" ring buffer.
+ //
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ //
+ // Get write position and handle wrap-around if necessary
+ //
+ WrOff = pRing->WrOff + 1;
+ if (WrOff == pRing->SizeOfBuffer) {
+ WrOff = 0;
+ }
+ //
+ // Output byte if free space is available
+ //
+ if (WrOff != pRing->RdOff) {
+ pDst = (pRing->pBuffer + pRing->WrOff) + SEGGER_RTT_UNCACHED_OFF;
+ *pDst = c;
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = WrOff;
+ Status = 1;
+ } else {
+ Status = 0;
+ }
+ //
+ // Finish up.
+ //
+ SEGGER_RTT_UNLOCK();
+ //
+ return Status;
+}
+
+ /*********************************************************************
+*
+* SEGGER_RTT_PutChar
+*
+* Function description
+* Stores a single character/byte in SEGGER RTT buffer.
+*
+* Parameters
+* BufferIndex Index of "Up"-buffer to be used (e.g. 0 for "Terminal").
+* c Byte to be stored.
+*
+* Return value
+* Number of bytes which have been stored in the "Up"-buffer.
+*
+* Notes
+* (1) Data is stored according to buffer flags.
+*/
+
+unsigned SEGGER_RTT_PutChar(unsigned BufferIndex, char c) {
+ SEGGER_RTT_BUFFER_UP* pRing;
+ unsigned WrOff;
+ unsigned Status;
+ volatile char* pDst;
+ //
+ // Prepare
+ //
+ INIT();
+ SEGGER_RTT_LOCK();
+ //
+ // Get "to-host" ring buffer.
+ //
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ //
+ // Get write position and handle wrap-around if necessary
+ //
+ WrOff = pRing->WrOff + 1;
+ if (WrOff == pRing->SizeOfBuffer) {
+ WrOff = 0;
+ }
+ //
+ // Wait for free space if mode is set to blocking
+ //
+ if (pRing->Flags == SEGGER_RTT_MODE_BLOCK_IF_FIFO_FULL) {
+ while (WrOff == pRing->RdOff) {
+ ;
+ }
+ }
+ //
+ // Output byte if free space is available
+ //
+ if (WrOff != pRing->RdOff) {
+ pDst = (pRing->pBuffer + pRing->WrOff) + SEGGER_RTT_UNCACHED_OFF;
+ *pDst = c;
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ pRing->WrOff = WrOff;
+ Status = 1;
+ } else {
+ Status = 0;
+ }
+ //
+ // Finish up.
+ //
+ SEGGER_RTT_UNLOCK();
+ return Status;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_GetKey
+*
+* Function description
+* Reads one character from the SEGGER RTT buffer.
+* Host has previously stored data there.
+*
+* Return value
+* < 0 - No character available (buffer empty).
+* >= 0 - Character which has been read. (Possible values: 0 - 255)
+*
+* Notes
+* (1) This function is only specified for accesses to RTT buffer 0.
+*/
+int SEGGER_RTT_GetKey(void) {
+ char c;
+ int r;
+
+ r = (int)SEGGER_RTT_Read(0u, &c, 1u);
+ if (r == 1) {
+ r = (int)(unsigned char)c;
+ } else {
+ r = -1;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_WaitKey
+*
+* Function description
+* Waits until at least one character is avaible in the SEGGER RTT buffer.
+* Once a character is available, it is read and this function returns.
+*
+* Return value
+* >=0 - Character which has been read.
+*
+* Notes
+* (1) This function is only specified for accesses to RTT buffer 0
+* (2) This function is blocking if no character is present in RTT buffer
+*/
+int SEGGER_RTT_WaitKey(void) {
+ int r;
+
+ do {
+ r = SEGGER_RTT_GetKey();
+ } while (r < 0);
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_HasKey
+*
+* Function description
+* Checks if at least one character for reading is available in the SEGGER RTT buffer.
+*
+* Return value
+* == 0 - No characters are available to read.
+* == 1 - At least one character is available.
+*
+* Notes
+* (1) This function is only specified for accesses to RTT buffer 0
+*/
+int SEGGER_RTT_HasKey(void) {
+ SEGGER_RTT_BUFFER_DOWN* pRing;
+ unsigned RdOff;
+ int r;
+
+ INIT();
+ pRing = (SEGGER_RTT_BUFFER_DOWN*)((char*)&_SEGGER_RTT.aDown[0] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ RdOff = pRing->RdOff;
+ if (RdOff != pRing->WrOff) {
+ r = 1;
+ } else {
+ r = 0;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_HasData
+*
+* Function description
+* Check if there is data from the host in the given buffer.
+*
+* Return value:
+* ==0: No data
+* !=0: Data in buffer
+*
+*/
+unsigned SEGGER_RTT_HasData(unsigned BufferIndex) {
+ SEGGER_RTT_BUFFER_DOWN* pRing;
+ unsigned v;
+
+ pRing = (SEGGER_RTT_BUFFER_DOWN*)((char*)&_SEGGER_RTT.aDown[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ v = pRing->WrOff;
+ return v - pRing->RdOff;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_HasDataUp
+*
+* Function description
+* Check if there is data remaining to be sent in the given buffer.
+*
+* Return value:
+* ==0: No data
+* !=0: Data in buffer
+*
+*/
+unsigned SEGGER_RTT_HasDataUp(unsigned BufferIndex) {
+ SEGGER_RTT_BUFFER_UP* pRing;
+ unsigned v;
+
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ v = pRing->RdOff;
+ return pRing->WrOff - v;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_AllocDownBuffer
+*
+* Function description
+* Run-time configuration of the next down-buffer (H->T).
+* The next buffer, which is not used yet is configured.
+* This includes: Buffer address, size, name, flags, ...
+*
+* Parameters
+* sName Pointer to a constant name string.
+* pBuffer Pointer to a buffer to be used.
+* BufferSize Size of the buffer.
+* Flags Operating modes. Define behavior if buffer is full (not enough space for entire message).
+* Flags[31:24] are used for validity check and must be zero. Flags[23:2] are reserved for future use. Flags[1:0] = RTT operating mode.
+*
+* Return value
+* >= 0 - O.K. Buffer Index
+* < 0 - Error
+*/
+int SEGGER_RTT_AllocDownBuffer(const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
+ int BufferIndex;
+ volatile SEGGER_RTT_CB* pRTTCB;
+
+ INIT();
+ SEGGER_RTT_LOCK();
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ BufferIndex = 0;
+ do {
+ if (pRTTCB->aDown[BufferIndex].pBuffer == NULL) {
+ break;
+ }
+ BufferIndex++;
+ } while (BufferIndex < pRTTCB->MaxNumDownBuffers);
+ if (BufferIndex < pRTTCB->MaxNumDownBuffers) {
+ pRTTCB->aDown[BufferIndex].sName = sName;
+ pRTTCB->aDown[BufferIndex].pBuffer = (char*)pBuffer;
+ pRTTCB->aDown[BufferIndex].SizeOfBuffer = BufferSize;
+ pRTTCB->aDown[BufferIndex].RdOff = 0u;
+ pRTTCB->aDown[BufferIndex].WrOff = 0u;
+ pRTTCB->aDown[BufferIndex].Flags = Flags;
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ } else {
+ BufferIndex = -1;
+ }
+ SEGGER_RTT_UNLOCK();
+ return BufferIndex;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_AllocUpBuffer
+*
+* Function description
+* Run-time configuration of the next up-buffer (T->H).
+* The next buffer, which is not used yet is configured.
+* This includes: Buffer address, size, name, flags, ...
+*
+* Parameters
+* sName Pointer to a constant name string.
+* pBuffer Pointer to a buffer to be used.
+* BufferSize Size of the buffer.
+* Flags Operating modes. Define behavior if buffer is full (not enough space for entire message).
+* Flags[31:24] are used for validity check and must be zero. Flags[23:2] are reserved for future use. Flags[1:0] = RTT operating mode.
+*
+* Return value
+* >= 0 - O.K. Buffer Index
+* < 0 - Error
+*/
+int SEGGER_RTT_AllocUpBuffer(const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
+ int BufferIndex;
+ volatile SEGGER_RTT_CB* pRTTCB;
+
+ INIT();
+ SEGGER_RTT_LOCK();
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ BufferIndex = 0;
+ do {
+ if (pRTTCB->aUp[BufferIndex].pBuffer == NULL) {
+ break;
+ }
+ BufferIndex++;
+ } while (BufferIndex < pRTTCB->MaxNumUpBuffers);
+ if (BufferIndex < pRTTCB->MaxNumUpBuffers) {
+ pRTTCB->aUp[BufferIndex].sName = sName;
+ pRTTCB->aUp[BufferIndex].pBuffer = (char*)pBuffer;
+ pRTTCB->aUp[BufferIndex].SizeOfBuffer = BufferSize;
+ pRTTCB->aUp[BufferIndex].RdOff = 0u;
+ pRTTCB->aUp[BufferIndex].WrOff = 0u;
+ pRTTCB->aUp[BufferIndex].Flags = Flags;
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ } else {
+ BufferIndex = -1;
+ }
+ SEGGER_RTT_UNLOCK();
+ return BufferIndex;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_ConfigUpBuffer
+*
+* Function description
+* Run-time configuration of a specific up-buffer (T->H).
+* Buffer to be configured is specified by index.
+* This includes: Buffer address, size, name, flags, ...
+*
+* Parameters
+* BufferIndex Index of the buffer to configure.
+* sName Pointer to a constant name string.
+* pBuffer Pointer to a buffer to be used.
+* BufferSize Size of the buffer.
+* Flags Operating modes. Define behavior if buffer is full (not enough space for entire message).
+* Flags[31:24] are used for validity check and must be zero. Flags[23:2] are reserved for future use. Flags[1:0] = RTT operating mode.
+*
+* Return value
+* >= 0 - O.K.
+* < 0 - Error
+*
+* Additional information
+* Buffer 0 is configured on compile-time.
+* May only be called once per buffer.
+* Buffer name and flags can be reconfigured using the appropriate functions.
+*/
+int SEGGER_RTT_ConfigUpBuffer(unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
+ int r;
+ volatile SEGGER_RTT_CB* pRTTCB;
+ volatile SEGGER_RTT_BUFFER_UP* pUp;
+
+ INIT();
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ if (BufferIndex < SEGGER_RTT_MAX_NUM_UP_BUFFERS) {
+ SEGGER_RTT_LOCK();
+ pUp = &pRTTCB->aUp[BufferIndex];
+ if (BufferIndex) {
+ pUp->sName = sName;
+ pUp->pBuffer = (char*)pBuffer;
+ pUp->SizeOfBuffer = BufferSize;
+ pUp->RdOff = 0u;
+ pUp->WrOff = 0u;
+ }
+ pUp->Flags = Flags;
+ SEGGER_RTT_UNLOCK();
+ r = 0;
+ } else {
+ r = -1;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_ConfigDownBuffer
+*
+* Function description
+* Run-time configuration of a specific down-buffer (H->T).
+* Buffer to be configured is specified by index.
+* This includes: Buffer address, size, name, flags, ...
+*
+* Parameters
+* BufferIndex Index of the buffer to configure.
+* sName Pointer to a constant name string.
+* pBuffer Pointer to a buffer to be used.
+* BufferSize Size of the buffer.
+* Flags Operating modes. Define behavior if buffer is full (not enough space for entire message).
+* Flags[31:24] are used for validity check and must be zero. Flags[23:2] are reserved for future use. Flags[1:0] = RTT operating mode.
+*
+* Return value
+* >= 0 O.K.
+* < 0 Error
+*
+* Additional information
+* Buffer 0 is configured on compile-time.
+* May only be called once per buffer.
+* Buffer name and flags can be reconfigured using the appropriate functions.
+*/
+int SEGGER_RTT_ConfigDownBuffer(unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags) {
+ int r;
+ volatile SEGGER_RTT_CB* pRTTCB;
+ volatile SEGGER_RTT_BUFFER_DOWN* pDown;
+
+ INIT();
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ if (BufferIndex < SEGGER_RTT_MAX_NUM_DOWN_BUFFERS) {
+ SEGGER_RTT_LOCK();
+ pDown = &pRTTCB->aDown[BufferIndex];
+ if (BufferIndex) {
+ pDown->sName = sName;
+ pDown->pBuffer = (char*)pBuffer;
+ pDown->SizeOfBuffer = BufferSize;
+ pDown->RdOff = 0u;
+ pDown->WrOff = 0u;
+ }
+ pDown->Flags = Flags;
+ RTT__DMB(); // Force data write to be complete before writing the <WrOff>, in case CPU is allowed to change the order of memory accesses
+ SEGGER_RTT_UNLOCK();
+ r = 0;
+ } else {
+ r = -1;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_SetNameUpBuffer
+*
+* Function description
+* Run-time configuration of a specific up-buffer name (T->H).
+* Buffer to be configured is specified by index.
+*
+* Parameters
+* BufferIndex Index of the buffer to renamed.
+* sName Pointer to a constant name string.
+*
+* Return value
+* >= 0 O.K.
+* < 0 Error
+*/
+int SEGGER_RTT_SetNameUpBuffer(unsigned BufferIndex, const char* sName) {
+ int r;
+ volatile SEGGER_RTT_CB* pRTTCB;
+ volatile SEGGER_RTT_BUFFER_UP* pUp;
+
+ INIT();
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ if (BufferIndex < SEGGER_RTT_MAX_NUM_UP_BUFFERS) {
+ SEGGER_RTT_LOCK();
+ pUp = &pRTTCB->aUp[BufferIndex];
+ pUp->sName = sName;
+ SEGGER_RTT_UNLOCK();
+ r = 0;
+ } else {
+ r = -1;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_SetNameDownBuffer
+*
+* Function description
+* Run-time configuration of a specific Down-buffer name (T->H).
+* Buffer to be configured is specified by index.
+*
+* Parameters
+* BufferIndex Index of the buffer to renamed.
+* sName Pointer to a constant name string.
+*
+* Return value
+* >= 0 O.K.
+* < 0 Error
+*/
+int SEGGER_RTT_SetNameDownBuffer(unsigned BufferIndex, const char* sName) {
+ int r;
+ volatile SEGGER_RTT_CB* pRTTCB;
+ volatile SEGGER_RTT_BUFFER_DOWN* pDown;
+
+ INIT();
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ if (BufferIndex < SEGGER_RTT_MAX_NUM_DOWN_BUFFERS) {
+ SEGGER_RTT_LOCK();
+ pDown = &pRTTCB->aDown[BufferIndex];
+ pDown->sName = sName;
+ SEGGER_RTT_UNLOCK();
+ r = 0;
+ } else {
+ r = -1;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_SetFlagsUpBuffer
+*
+* Function description
+* Run-time configuration of specific up-buffer flags (T->H).
+* Buffer to be configured is specified by index.
+*
+* Parameters
+* BufferIndex Index of the buffer.
+* Flags Flags to set for the buffer.
+* Flags[31:24] are used for validity check and must be zero. Flags[23:2] are reserved for future use. Flags[1:0] = RTT operating mode.
+*
+* Return value
+* >= 0 O.K.
+* < 0 Error
+*/
+int SEGGER_RTT_SetFlagsUpBuffer(unsigned BufferIndex, unsigned Flags) {
+ int r;
+ volatile SEGGER_RTT_CB* pRTTCB;
+ volatile SEGGER_RTT_BUFFER_UP* pUp;
+
+ INIT();
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ if (BufferIndex < SEGGER_RTT_MAX_NUM_UP_BUFFERS) {
+ SEGGER_RTT_LOCK();
+ pUp = &pRTTCB->aUp[BufferIndex];
+ pUp->Flags = Flags;
+ SEGGER_RTT_UNLOCK();
+ r = 0;
+ } else {
+ r = -1;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_SetFlagsDownBuffer
+*
+* Function description
+* Run-time configuration of specific Down-buffer flags (T->H).
+* Buffer to be configured is specified by index.
+*
+* Parameters
+* BufferIndex Index of the buffer to renamed.
+* Flags Flags to set for the buffer.
+* Flags[31:24] are used for validity check and must be zero. Flags[23:2] are reserved for future use. Flags[1:0] = RTT operating mode.
+*
+* Return value
+* >= 0 O.K.
+* < 0 Error
+*/
+int SEGGER_RTT_SetFlagsDownBuffer(unsigned BufferIndex, unsigned Flags) {
+ int r;
+ volatile SEGGER_RTT_CB* pRTTCB;
+ volatile SEGGER_RTT_BUFFER_DOWN* pDown;
+
+ INIT();
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ if (BufferIndex < SEGGER_RTT_MAX_NUM_DOWN_BUFFERS) {
+ SEGGER_RTT_LOCK();
+ pDown = &pRTTCB->aDown[BufferIndex];
+ pDown->Flags = Flags;
+ SEGGER_RTT_UNLOCK();
+ r = 0;
+ } else {
+ r = -1;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_Init
+*
+* Function description
+* Initializes the RTT Control Block.
+* Should be used in RAM targets, at start of the application.
+*
+*/
+void SEGGER_RTT_Init (void) {
+ _DoInit();
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_SetTerminal
+*
+* Function description
+* Sets the terminal to be used for output on channel 0.
+*
+* Parameters
+* TerminalId Index of the terminal.
+*
+* Return value
+* >= 0 O.K.
+* < 0 Error (e.g. if RTT is configured for non-blocking mode and there was no space in the buffer to set the new terminal Id)
+*
+* Notes
+* (1) Buffer 0 is always reserved for terminal I/O, so we can use index 0 here, fixed
+*/
+int SEGGER_RTT_SetTerminal (unsigned char TerminalId) {
+ unsigned char ac[2];
+ SEGGER_RTT_BUFFER_UP* pRing;
+ unsigned Avail;
+ int r;
+
+ INIT();
+ r = 0;
+ ac[0] = 0xFFu;
+ if (TerminalId < sizeof(_aTerminalId)) { // We only support a certain number of channels
+ ac[1] = _aTerminalId[TerminalId];
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[0] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ SEGGER_RTT_LOCK(); // Lock to make sure that no other task is writing into buffer, while we are and number of free bytes in buffer does not change downwards after checking and before writing
+ if ((pRing->Flags & SEGGER_RTT_MODE_MASK) == SEGGER_RTT_MODE_BLOCK_IF_FIFO_FULL) {
+ _ActiveTerminal = TerminalId;
+ _WriteBlocking(pRing, (const char*)ac, 2u);
+ } else { // Skipping mode or trim mode? => We cannot trim this command so handling is the same for both modes
+ Avail = _GetAvailWriteSpace(pRing);
+ if (Avail >= 2) {
+ _ActiveTerminal = TerminalId; // Only change active terminal in case of success
+ _WriteNoCheck(pRing, (const char*)ac, 2u);
+ } else {
+ r = -1;
+ }
+ }
+ SEGGER_RTT_UNLOCK();
+ } else {
+ r = -1;
+ }
+ return r;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_TerminalOut
+*
+* Function description
+* Writes a string to the given terminal
+* without changing the terminal for channel 0.
+*
+* Parameters
+* TerminalId Index of the terminal.
+* s String to be printed on the terminal.
+*
+* Return value
+* >= 0 - Number of bytes written.
+* < 0 - Error.
+*
+*/
+int SEGGER_RTT_TerminalOut (unsigned char TerminalId, const char* s) {
+ int Status;
+ unsigned FragLen;
+ unsigned Avail;
+ SEGGER_RTT_BUFFER_UP* pRing;
+ //
+ INIT();
+ //
+ // Validate terminal ID.
+ //
+ if (TerminalId < (char)sizeof(_aTerminalId)) { // We only support a certain number of channels
+ //
+ // Get "to-host" ring buffer.
+ //
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[0] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ //
+ // Need to be able to change terminal, write data, change back.
+ // Compute the fixed and variable sizes.
+ //
+ FragLen = STRLEN(s);
+ //
+ // How we output depends upon the mode...
+ //
+ SEGGER_RTT_LOCK();
+ Avail = _GetAvailWriteSpace(pRing);
+ switch (pRing->Flags & SEGGER_RTT_MODE_MASK) {
+ case SEGGER_RTT_MODE_NO_BLOCK_SKIP:
+ //
+ // If we are in skip mode and there is no space for the whole
+ // of this output, don't bother switching terminals at all.
+ //
+ if (Avail < (FragLen + 4u)) {
+ Status = 0;
+ } else {
+ _PostTerminalSwitch(pRing, TerminalId);
+ Status = (int)_WriteBlocking(pRing, s, FragLen);
+ _PostTerminalSwitch(pRing, _ActiveTerminal);
+ }
+ break;
+ case SEGGER_RTT_MODE_NO_BLOCK_TRIM:
+ //
+ // If we are in trim mode and there is not enough space for everything,
+ // trim the output but always include the terminal switch. If no room
+ // for terminal switch, skip that totally.
+ //
+ if (Avail < 4u) {
+ Status = -1;
+ } else {
+ _PostTerminalSwitch(pRing, TerminalId);
+ Status = (int)_WriteBlocking(pRing, s, (FragLen < (Avail - 4u)) ? FragLen : (Avail - 4u));
+ _PostTerminalSwitch(pRing, _ActiveTerminal);
+ }
+ break;
+ case SEGGER_RTT_MODE_BLOCK_IF_FIFO_FULL:
+ //
+ // If we are in blocking mode, output everything.
+ //
+ _PostTerminalSwitch(pRing, TerminalId);
+ Status = (int)_WriteBlocking(pRing, s, FragLen);
+ _PostTerminalSwitch(pRing, _ActiveTerminal);
+ break;
+ default:
+ Status = -1;
+ break;
+ }
+ //
+ // Finish up.
+ //
+ SEGGER_RTT_UNLOCK();
+ } else {
+ Status = -1;
+ }
+ return Status;
+}
+
+/*********************************************************************
+*
+* SEGGER_RTT_GetAvailWriteSpace
+*
+* Function description
+* Returns the number of bytes available in the ring buffer.
+*
+* Parameters
+* BufferIndex Index of the up buffer.
+*
+* Return value
+* Number of bytes that are free in the selected up buffer.
+*/
+unsigned SEGGER_RTT_GetAvailWriteSpace (unsigned BufferIndex) {
+ SEGGER_RTT_BUFFER_UP* pRing;
+
+ pRing = (SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[BufferIndex] + SEGGER_RTT_UNCACHED_OFF); // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ return _GetAvailWriteSpace(pRing);
+}
+
+
+/*********************************************************************
+*
+* SEGGER_RTT_GetBytesInBuffer()
+*
+* Function description
+* Returns the number of bytes currently used in the up buffer.
+*
+* Parameters
+* BufferIndex Index of the up buffer.
+*
+* Return value
+* Number of bytes that are used in the buffer.
+*/
+unsigned SEGGER_RTT_GetBytesInBuffer(unsigned BufferIndex) {
+ unsigned RdOff;
+ unsigned WrOff;
+ unsigned r;
+ volatile SEGGER_RTT_CB* pRTTCB;
+ //
+ // Avoid warnings regarding volatile access order. It's not a problem
+ // in this case, but dampen compiler enthusiasm.
+ //
+ pRTTCB = (volatile SEGGER_RTT_CB*)((unsigned char*)&_SEGGER_RTT + SEGGER_RTT_UNCACHED_OFF); // Access RTTCB uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+ RdOff = pRTTCB->aUp[BufferIndex].RdOff;
+ WrOff = pRTTCB->aUp[BufferIndex].WrOff;
+ if (RdOff <= WrOff) {
+ r = WrOff - RdOff;
+ } else {
+ r = pRTTCB->aUp[BufferIndex].SizeOfBuffer - (WrOff - RdOff);
+ }
+ return r;
+}
+
+/*************************** End of file ****************************/
diff --git a/src/rp2_common/pico_stdio_rtt/SEGGER/RTT/SEGGER_RTT.h b/src/rp2_common/pico_stdio_rtt/SEGGER/RTT/SEGGER_RTT.h
new file mode 100644
index 0000000000000000000000000000000000000000..3ae3ab91301d2bf679d97607190e4debdfd89c20
--- /dev/null
+++ b/src/rp2_common/pico_stdio_rtt/SEGGER/RTT/SEGGER_RTT.h
@@ -0,0 +1,493 @@
+/*********************************************************************
+* SEGGER Microcontroller GmbH *
+* The Embedded Experts *
+**********************************************************************
+* *
+* (c) 1995 - 2021 SEGGER Microcontroller GmbH *
+* *
+* www.segger.com Support: support@segger.com *
+* *
+**********************************************************************
+* *
+* SEGGER RTT * Real Time Transfer for embedded targets *
+* *
+**********************************************************************
+* *
+* All rights reserved. *
+* *
+* SEGGER strongly recommends to not make any changes *
+* to or modify the source code of this software in order to stay *
+* compatible with the RTT protocol and J-Link. *
+* *
+* Redistribution and use in source and binary forms, with or *
+* without modification, are permitted provided that the following *
+* condition is met: *
+* *
+* o Redistributions of source code must retain the above copyright *
+* notice, this condition and the following disclaimer. *
+* *
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND *
+* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, *
+* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF *
+* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE *
+* DISCLAIMED. IN NO EVENT SHALL SEGGER Microcontroller BE LIABLE FOR *
+* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR *
+* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT *
+* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; *
+* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF *
+* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT *
+* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE *
+* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH *
+* DAMAGE. *
+* *
+**********************************************************************
+* *
+* RTT version: 7.88c *
+* *
+**********************************************************************
+
+---------------------------END-OF-HEADER------------------------------
+File : SEGGER_RTT.h
+Purpose : Implementation of SEGGER real-time transfer which allows
+ real-time communication on targets which support debugger
+ memory accesses while the CPU is running.
+Revision: $Rev: 25842 $
+----------------------------------------------------------------------
+*/
+
+#ifndef SEGGER_RTT_H
+#define SEGGER_RTT_H
+
+#include "../Config/SEGGER_RTT_Conf.h"
+
+/*********************************************************************
+*
+* Defines, defaults
+*
+**********************************************************************
+*/
+
+#ifndef RTT_USE_ASM
+ //
+ // Some cores support out-of-order memory accesses (reordering of memory accesses in the core)
+ // For such cores, we need to define a memory barrier to guarantee the order of certain accesses to the RTT ring buffers.
+ // Needed for:
+ // Cortex-M7 (ARMv7-M)
+ // Cortex-M23 (ARM-v8M)
+ // Cortex-M33 (ARM-v8M)
+ // Cortex-A/R (ARM-v7A/R)
+ //
+ // We do not explicitly check for "Embedded Studio" as the compiler in use determines what we support.
+ // You can use an external toolchain like IAR inside ES. So there is no point in checking for "Embedded Studio"
+ //
+ #if (defined __CROSSWORKS_ARM) // Rowley Crossworks
+ #define _CC_HAS_RTT_ASM_SUPPORT 1
+ #if (defined __ARM_ARCH_7M__) // Cortex-M3
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #elif (defined __ARM_ARCH_7EM__) // Cortex-M4/M7
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #elif (defined __ARM_ARCH_8M_BASE__) // Cortex-M23
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #elif (defined __ARM_ARCH_8M_MAIN__) // Cortex-M33
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #else
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0
+ #endif
+ #elif (defined __ARMCC_VERSION)
+ //
+ // ARM compiler
+ // ARM compiler V6.0 and later is clang based.
+ // Our ASM part is compatible to clang.
+ //
+ #if (__ARMCC_VERSION >= 6000000)
+ #define _CC_HAS_RTT_ASM_SUPPORT 1
+ #else
+ #define _CC_HAS_RTT_ASM_SUPPORT 0
+ #endif
+ #if (defined __ARM_ARCH_6M__) // Cortex-M0 / M1
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0 // No ASM support for this architecture
+ #elif (defined __ARM_ARCH_7M__) // Cortex-M3
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #elif (defined __ARM_ARCH_7EM__) // Cortex-M4/M7
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #elif (defined __ARM_ARCH_8M_BASE__) // Cortex-M23
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #elif (defined __ARM_ARCH_8M_MAIN__) // Cortex-M33
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #elif ((defined __ARM_ARCH_7A__) || (defined __ARM_ARCH_7R__)) // Cortex-A/R 32-bit ARMv7-A/R
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #else
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0
+ #endif
+ #elif ((defined __GNUC__) || (defined __clang__))
+ //
+ // GCC / Clang
+ //
+ #define _CC_HAS_RTT_ASM_SUPPORT 1
+ // ARM 7/9: __ARM_ARCH_5__ / __ARM_ARCH_5E__ / __ARM_ARCH_5T__ / __ARM_ARCH_5T__ / __ARM_ARCH_5TE__
+ #if (defined __ARM_ARCH_7M__) // Cortex-M3
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #elif (defined __ARM_ARCH_7EM__) // Cortex-M4/M7
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1 // Only Cortex-M7 needs a DMB but we cannot distinguish M4 and M7 here...
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #elif (defined __ARM_ARCH_8M_BASE__) // Cortex-M23
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #elif (defined __ARM_ARCH_8M_MAIN__) // Cortex-M33
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #elif ((defined __ARM_ARCH_7A__) || (defined __ARM_ARCH_7R__)) // Cortex-A/R 32-bit ARMv7-A/R
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() __asm volatile ("dmb\n" : : :);
+ #else
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0
+ #endif
+ #elif ((defined __IASMARM__) || (defined __ICCARM__))
+ //
+ // IAR assembler/compiler
+ //
+ #define _CC_HAS_RTT_ASM_SUPPORT 1
+ #if (__VER__ < 6300000)
+ #define VOLATILE
+ #else
+ #define VOLATILE volatile
+ #endif
+ #if (defined __ARM7M__) // Needed for old versions that do not know the define yet
+ #if (__CORE__ == __ARM7M__) // Cortex-M3
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #endif
+ #endif
+ #if (defined __ARM7EM__)
+ #if (__CORE__ == __ARM7EM__) // Cortex-M4/M7
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() asm VOLATILE ("DMB");
+ #endif
+ #endif
+ #if (defined __ARM8M_BASELINE__)
+ #if (__CORE__ == __ARM8M_BASELINE__) // Cortex-M23
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() asm VOLATILE ("DMB");
+ #endif
+ #endif
+ #if (defined __ARM8M_MAINLINE__)
+ #if (__CORE__ == __ARM8M_MAINLINE__) // Cortex-M33
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() asm VOLATILE ("DMB");
+ #endif
+ #endif
+ #if (defined __ARM8EM_MAINLINE__)
+ #if (__CORE__ == __ARM8EM_MAINLINE__) // Cortex-???
+ #define _CORE_HAS_RTT_ASM_SUPPORT 1
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() asm VOLATILE ("DMB");
+ #endif
+ #endif
+ #if (defined __ARM7A__)
+ #if (__CORE__ == __ARM7A__) // Cortex-A 32-bit ARMv7-A
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() asm VOLATILE ("DMB");
+ #endif
+ #endif
+ #if (defined __ARM7R__)
+ #if (__CORE__ == __ARM7R__) // Cortex-R 32-bit ARMv7-R
+ #define _CORE_NEEDS_DMB 1
+ #define RTT__DMB() asm VOLATILE ("DMB");
+ #endif
+ #endif
+// TBD: __ARM8A__ => Cortex-A 64-bit ARMv8-A
+// TBD: __ARM8R__ => Cortex-R 64-bit ARMv8-R
+ #else
+ //
+ // Other compilers
+ //
+ #define _CC_HAS_RTT_ASM_SUPPORT 0
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0
+ #endif
+ //
+ // If IDE and core support the ASM version, enable ASM version by default
+ //
+ #ifndef _CORE_HAS_RTT_ASM_SUPPORT
+ #define _CORE_HAS_RTT_ASM_SUPPORT 0 // Default for unknown cores
+ #endif
+ #if (_CC_HAS_RTT_ASM_SUPPORT && _CORE_HAS_RTT_ASM_SUPPORT)
+ #define RTT_USE_ASM (1)
+ #else
+ #define RTT_USE_ASM (0)
+ #endif
+#endif
+
+#ifndef _CORE_NEEDS_DMB
+ #define _CORE_NEEDS_DMB 0
+#endif
+
+#ifndef RTT__DMB
+ #if _CORE_NEEDS_DMB
+ #error "Don't know how to place inline assembly for DMB"
+ #else
+ #define RTT__DMB()
+ #endif
+#endif
+
+#ifndef SEGGER_RTT_CPU_CACHE_LINE_SIZE
+ #define SEGGER_RTT_CPU_CACHE_LINE_SIZE (0) // On most target systems where RTT is used, we do not have a CPU cache, therefore 0 is a good default here
+#endif
+
+#ifndef SEGGER_RTT_UNCACHED_OFF
+ #if SEGGER_RTT_CPU_CACHE_LINE_SIZE
+ #error "SEGGER_RTT_UNCACHED_OFF must be defined when setting SEGGER_RTT_CPU_CACHE_LINE_SIZE != 0"
+ #else
+ #define SEGGER_RTT_UNCACHED_OFF (0)
+ #endif
+#endif
+#if RTT_USE_ASM
+ #if SEGGER_RTT_CPU_CACHE_LINE_SIZE
+ #error "RTT_USE_ASM is not available if SEGGER_RTT_CPU_CACHE_LINE_SIZE != 0"
+ #endif
+#endif
+
+#ifndef SEGGER_RTT_ASM // defined when SEGGER_RTT.h is included from assembly file
+#include <stdlib.h>
+#include <stdarg.h>
+
+/*********************************************************************
+*
+* Defines, fixed
+*
+**********************************************************************
+*/
+
+//
+// Determine how much we must pad the control block to make it a multiple of a cache line in size
+// Assuming: U8 = 1B
+// U16 = 2B
+// U32 = 4B
+// U8/U16/U32* = 4B
+//
+#if SEGGER_RTT_CPU_CACHE_LINE_SIZE // Avoid division by zero in case we do not have any cache
+ #define SEGGER_RTT__ROUND_UP_2_CACHE_LINE_SIZE(NumBytes) (((NumBytes + SEGGER_RTT_CPU_CACHE_LINE_SIZE - 1) / SEGGER_RTT_CPU_CACHE_LINE_SIZE) * SEGGER_RTT_CPU_CACHE_LINE_SIZE)
+#else
+ #define SEGGER_RTT__ROUND_UP_2_CACHE_LINE_SIZE(NumBytes) (NumBytes)
+#endif
+#define SEGGER_RTT__CB_SIZE (16 + 4 + 4 + (SEGGER_RTT_MAX_NUM_UP_BUFFERS * 24) + (SEGGER_RTT_MAX_NUM_DOWN_BUFFERS * 24))
+#define SEGGER_RTT__CB_PADDING (SEGGER_RTT__ROUND_UP_2_CACHE_LINE_SIZE(SEGGER_RTT__CB_SIZE) - SEGGER_RTT__CB_SIZE)
+
+/*********************************************************************
+*
+* Types
+*
+**********************************************************************
+*/
+
+//
+// Description for a circular buffer (also called "ring buffer")
+// which is used as up-buffer (T->H)
+//
+typedef struct {
+ const char* sName; // Optional name. Standard names so far are: "Terminal", "SysView", "J-Scope_t4i4"
+ char* pBuffer; // Pointer to start of buffer
+ unsigned SizeOfBuffer; // Buffer size in bytes. Note that one byte is lost, as this implementation does not fill up the buffer in order to avoid the problem of being unable to distinguish between full and empty.
+ unsigned WrOff; // Position of next item to be written by either target.
+ volatile unsigned RdOff; // Position of next item to be read by host. Must be volatile since it may be modified by host.
+ unsigned Flags; // Contains configuration flags. Flags[31:24] are used for validity check and must be zero. Flags[23:2] are reserved for future use. Flags[1:0] = RTT operating mode.
+} SEGGER_RTT_BUFFER_UP;
+
+//
+// Description for a circular buffer (also called "ring buffer")
+// which is used as down-buffer (H->T)
+//
+typedef struct {
+ const char* sName; // Optional name. Standard names so far are: "Terminal", "SysView", "J-Scope_t4i4"
+ char* pBuffer; // Pointer to start of buffer
+ unsigned SizeOfBuffer; // Buffer size in bytes. Note that one byte is lost, as this implementation does not fill up the buffer in order to avoid the problem of being unable to distinguish between full and empty.
+ volatile unsigned WrOff; // Position of next item to be written by host. Must be volatile since it may be modified by host.
+ unsigned RdOff; // Position of next item to be read by target (down-buffer).
+ unsigned Flags; // Contains configuration flags. Flags[31:24] are used for validity check and must be zero. Flags[23:2] are reserved for future use. Flags[1:0] = RTT operating mode.
+} SEGGER_RTT_BUFFER_DOWN;
+
+//
+// RTT control block which describes the number of buffers available
+// as well as the configuration for each buffer
+//
+//
+typedef struct {
+ char acID[16]; // Initialized to "SEGGER RTT"
+ int MaxNumUpBuffers; // Initialized to SEGGER_RTT_MAX_NUM_UP_BUFFERS (type. 2)
+ int MaxNumDownBuffers; // Initialized to SEGGER_RTT_MAX_NUM_DOWN_BUFFERS (type. 2)
+ SEGGER_RTT_BUFFER_UP aUp[SEGGER_RTT_MAX_NUM_UP_BUFFERS]; // Up buffers, transferring information up from target via debug probe to host
+ SEGGER_RTT_BUFFER_DOWN aDown[SEGGER_RTT_MAX_NUM_DOWN_BUFFERS]; // Down buffers, transferring information down from host via debug probe to target
+#if SEGGER_RTT__CB_PADDING
+ unsigned char aDummy[SEGGER_RTT__CB_PADDING];
+#endif
+} SEGGER_RTT_CB;
+
+/*********************************************************************
+*
+* Global data
+*
+**********************************************************************
+*/
+extern SEGGER_RTT_CB _SEGGER_RTT;
+
+/*********************************************************************
+*
+* RTT API functions
+*
+**********************************************************************
+*/
+#ifdef __cplusplus
+ extern "C" {
+#endif
+int SEGGER_RTT_AllocDownBuffer (const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags);
+int SEGGER_RTT_AllocUpBuffer (const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags);
+int SEGGER_RTT_ConfigUpBuffer (unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags);
+int SEGGER_RTT_ConfigDownBuffer (unsigned BufferIndex, const char* sName, void* pBuffer, unsigned BufferSize, unsigned Flags);
+int SEGGER_RTT_GetKey (void);
+unsigned SEGGER_RTT_HasData (unsigned BufferIndex);
+int SEGGER_RTT_HasKey (void);
+unsigned SEGGER_RTT_HasDataUp (unsigned BufferIndex);
+void SEGGER_RTT_Init (void);
+unsigned SEGGER_RTT_Read (unsigned BufferIndex, void* pBuffer, unsigned BufferSize);
+unsigned SEGGER_RTT_ReadNoLock (unsigned BufferIndex, void* pData, unsigned BufferSize);
+int SEGGER_RTT_SetNameDownBuffer (unsigned BufferIndex, const char* sName);
+int SEGGER_RTT_SetNameUpBuffer (unsigned BufferIndex, const char* sName);
+int SEGGER_RTT_SetFlagsDownBuffer (unsigned BufferIndex, unsigned Flags);
+int SEGGER_RTT_SetFlagsUpBuffer (unsigned BufferIndex, unsigned Flags);
+int SEGGER_RTT_WaitKey (void);
+unsigned SEGGER_RTT_Write (unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
+unsigned SEGGER_RTT_WriteNoLock (unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
+unsigned SEGGER_RTT_WriteSkipNoLock (unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
+unsigned SEGGER_RTT_ASM_WriteSkipNoLock (unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
+unsigned SEGGER_RTT_WriteString (unsigned BufferIndex, const char* s);
+void SEGGER_RTT_WriteWithOverwriteNoLock(unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
+unsigned SEGGER_RTT_PutChar (unsigned BufferIndex, char c);
+unsigned SEGGER_RTT_PutCharSkip (unsigned BufferIndex, char c);
+unsigned SEGGER_RTT_PutCharSkipNoLock (unsigned BufferIndex, char c);
+unsigned SEGGER_RTT_GetAvailWriteSpace (unsigned BufferIndex);
+unsigned SEGGER_RTT_GetBytesInBuffer (unsigned BufferIndex);
+//
+// Function macro for performance optimization
+//
+#define SEGGER_RTT_HASDATA(n) (((SEGGER_RTT_BUFFER_DOWN*)((char*)&_SEGGER_RTT.aDown[n] + SEGGER_RTT_UNCACHED_OFF))->WrOff - ((SEGGER_RTT_BUFFER_DOWN*)((char*)&_SEGGER_RTT.aDown[n] + SEGGER_RTT_UNCACHED_OFF))->RdOff)
+
+#if RTT_USE_ASM
+ #define SEGGER_RTT_WriteSkipNoLock SEGGER_RTT_ASM_WriteSkipNoLock
+#endif
+
+/*********************************************************************
+*
+* RTT transfer functions to send RTT data via other channels.
+*
+**********************************************************************
+*/
+unsigned SEGGER_RTT_ReadUpBuffer (unsigned BufferIndex, void* pBuffer, unsigned BufferSize);
+unsigned SEGGER_RTT_ReadUpBufferNoLock (unsigned BufferIndex, void* pData, unsigned BufferSize);
+unsigned SEGGER_RTT_WriteDownBuffer (unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
+unsigned SEGGER_RTT_WriteDownBufferNoLock (unsigned BufferIndex, const void* pBuffer, unsigned NumBytes);
+
+#define SEGGER_RTT_HASDATA_UP(n) (((SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[n] + SEGGER_RTT_UNCACHED_OFF))->WrOff - ((SEGGER_RTT_BUFFER_UP*)((char*)&_SEGGER_RTT.aUp[n] + SEGGER_RTT_UNCACHED_OFF))->RdOff) // Access uncached to make sure we see changes made by the J-Link side and all of our changes go into HW directly
+
+/*********************************************************************
+*
+* RTT "Terminal" API functions
+*
+**********************************************************************
+*/
+int SEGGER_RTT_SetTerminal (unsigned char TerminalId);
+int SEGGER_RTT_TerminalOut (unsigned char TerminalId, const char* s);
+
+/*********************************************************************
+*
+* RTT printf functions (require SEGGER_RTT_printf.c)
+*
+**********************************************************************
+*/
+int SEGGER_RTT_printf(unsigned BufferIndex, const char * sFormat, ...);
+int SEGGER_RTT_vprintf(unsigned BufferIndex, const char * sFormat, va_list * pParamList);
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif // ifndef(SEGGER_RTT_ASM)
+
+/*********************************************************************
+*
+* Defines
+*
+**********************************************************************
+*/
+
+//
+// Operating modes. Define behavior if buffer is full (not enough space for entire message)
+//
+#define SEGGER_RTT_MODE_NO_BLOCK_SKIP (0) // Skip. Do not block, output nothing. (Default)
+#define SEGGER_RTT_MODE_NO_BLOCK_TRIM (1) // Trim: Do not block, output as much as fits.
+#define SEGGER_RTT_MODE_BLOCK_IF_FIFO_FULL (2) // Block: Wait until there is space in the buffer.
+#define SEGGER_RTT_MODE_MASK (3)
+
+//
+// Control sequences, based on ANSI.
+// Can be used to control color, and clear the screen
+//
+#define RTT_CTRL_RESET "\x1B[0m" // Reset to default colors
+#define RTT_CTRL_CLEAR "\x1B[2J" // Clear screen, reposition cursor to top left
+
+#define RTT_CTRL_TEXT_BLACK "\x1B[2;30m"
+#define RTT_CTRL_TEXT_RED "\x1B[2;31m"
+#define RTT_CTRL_TEXT_GREEN "\x1B[2;32m"
+#define RTT_CTRL_TEXT_YELLOW "\x1B[2;33m"
+#define RTT_CTRL_TEXT_BLUE "\x1B[2;34m"
+#define RTT_CTRL_TEXT_MAGENTA "\x1B[2;35m"
+#define RTT_CTRL_TEXT_CYAN "\x1B[2;36m"
+#define RTT_CTRL_TEXT_WHITE "\x1B[2;37m"
+
+#define RTT_CTRL_TEXT_BRIGHT_BLACK "\x1B[1;30m"
+#define RTT_CTRL_TEXT_BRIGHT_RED "\x1B[1;31m"
+#define RTT_CTRL_TEXT_BRIGHT_GREEN "\x1B[1;32m"
+#define RTT_CTRL_TEXT_BRIGHT_YELLOW "\x1B[1;33m"
+#define RTT_CTRL_TEXT_BRIGHT_BLUE "\x1B[1;34m"
+#define RTT_CTRL_TEXT_BRIGHT_MAGENTA "\x1B[1;35m"
+#define RTT_CTRL_TEXT_BRIGHT_CYAN "\x1B[1;36m"
+#define RTT_CTRL_TEXT_BRIGHT_WHITE "\x1B[1;37m"
+
+#define RTT_CTRL_BG_BLACK "\x1B[24;40m"
+#define RTT_CTRL_BG_RED "\x1B[24;41m"
+#define RTT_CTRL_BG_GREEN "\x1B[24;42m"
+#define RTT_CTRL_BG_YELLOW "\x1B[24;43m"
+#define RTT_CTRL_BG_BLUE "\x1B[24;44m"
+#define RTT_CTRL_BG_MAGENTA "\x1B[24;45m"
+#define RTT_CTRL_BG_CYAN "\x1B[24;46m"
+#define RTT_CTRL_BG_WHITE "\x1B[24;47m"
+
+#define RTT_CTRL_BG_BRIGHT_BLACK "\x1B[4;40m"
+#define RTT_CTRL_BG_BRIGHT_RED "\x1B[4;41m"
+#define RTT_CTRL_BG_BRIGHT_GREEN "\x1B[4;42m"
+#define RTT_CTRL_BG_BRIGHT_YELLOW "\x1B[4;43m"
+#define RTT_CTRL_BG_BRIGHT_BLUE "\x1B[4;44m"
+#define RTT_CTRL_BG_BRIGHT_MAGENTA "\x1B[4;45m"
+#define RTT_CTRL_BG_BRIGHT_CYAN "\x1B[4;46m"
+#define RTT_CTRL_BG_BRIGHT_WHITE "\x1B[4;47m"
+
+
+#endif
+
+/*************************** End of file ****************************/
diff --git a/src/rp2_common/pico_stdio_rtt/include/pico/stdio_rtt.h b/src/rp2_common/pico_stdio_rtt/include/pico/stdio_rtt.h
new file mode 100644
index 0000000000000000000000000000000000000000..3fc1759c693505f56891dbce82479362af864a87
--- /dev/null
+++ b/src/rp2_common/pico_stdio_rtt/include/pico/stdio_rtt.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _PICO_STDIO_RTT_H
+#define _PICO_STDIO_RTT_H
+
+#include "pico/stdio.h"
+
+/** \brief Support for stdin/stdout using SEGGER RTT
+ * \defgroup pico_stdio_rtt pico_stdio_rtt
+ * \ingroup pico_stdio
+ *
+ * Linking this library or calling `pico_enable_stdio_rtt(TARGET)` in the CMake (which
+ * achieves the same thing) will add RTT to the drivers used for standard output
+ */
+
+// PICO_CONFIG: PICO_STDIO_RTT_DEFAULT_CRLF, Default state of CR/LF translation for rtt output, type=bool, default=PICO_STDIO_DEFAULT_CRLF, group=pico_stdio_rtt
+#ifndef PICO_STDIO_RTT_DEFAULT_CRLF
+#define PICO_STDIO_RTT_DEFAULT_CRLF PICO_STDIO_DEFAULT_CRLF
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern stdio_driver_t stdio_rtt;
+
+/*! \brief Explicitly initialize stdin/stdout over RTT and add it to the current set of stdin/stdout drivers
+ * \ingroup pico_stdio_rtt
+ *
+ * \note this method is automatically called by \ref stdio_init_all() if `pico_stdio_rtt` is included in the build
+ */
+void stdio_rtt_init(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/src/rp2_common/pico_stdio_rtt/stdio_rtt.c b/src/rp2_common/pico_stdio_rtt/stdio_rtt.c
new file mode 100644
index 0000000000000000000000000000000000000000..379289378b7e74c48613e92fd23f216ca183074a
--- /dev/null
+++ b/src/rp2_common/pico_stdio_rtt/stdio_rtt.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "pico/binary_info.h"
+#include "pico/stdio/driver.h"
+#include "pico/stdio_rtt.h"
+#include "SEGGER_RTT.h"
+
+#if PICO_NO_BI_STDIO_RTT
+#define stdio_bi_decl_if_func_used(x)
+#else
+#define stdio_bi_decl_if_func_used bi_decl_if_func_used
+#endif
+
+void stdio_rtt_init(void) {
+ SEGGER_RTT_Init();
+ stdio_set_driver_enabled(&stdio_rtt, true);
+ stdio_bi_decl_if_func_used(bi_program_feature("RTT stdin / stdout"));
+}
+
+static void stdio_rtt_out_chars(const char *buf, int length) {
+ SEGGER_RTT_Write(0, buf, length);
+}
+
+static int stdio_rtt_in_chars(char *buf, int length) {
+ return SEGGER_RTT_Read(0, buf, length);
+}
+
+stdio_driver_t stdio_rtt = {
+ .out_chars = stdio_rtt_out_chars,
+ .in_chars = stdio_rtt_in_chars,
+#if PICO_STDIO_ENABLE_CRLF_SUPPORT
+ .crlf_enabled = PICO_STDIO_RTT_DEFAULT_CRLF
+#endif
+};
diff --git a/src/rp2_common/pico_stdlib/CMakeLists.txt b/src/rp2_common/pico_stdlib/CMakeLists.txt
index b5ad182f146ee42b20842938b860c817721ffd7f..510319ccea19a985e41158911ef805228435b8d5 100644
--- a/src/rp2_common/pico_stdlib/CMakeLists.txt
+++ b/src/rp2_common/pico_stdlib/CMakeLists.txt
@@ -4,6 +4,8 @@ option(PICO_STDIO_UART "Globally enable stdio UART" 1)
option(PICO_STDIO_USB "Globally enable stdio USB" 0)
# PICO_CMAKE_CONFIG: PICO_STDIO_SEMIHOSTING, OPTION: Globally enable stdio semihosting, type=bool, default=0, group=pico_stdlib
option(PICO_STDIO_SEMIHOSTING "Globally enable stdio semi-hosting" 0)
+# PICO_CMAKE_CONFIG: PICO_STDIO_RTT, OPTION: Globally enable stdio RTT, type=bool, default=0, group=pico_stdlib
+option(PICO_STDIO_RTT "Globally enable stdio RTT" 0)
if (NOT TARGET pico_stdlib)
pico_add_impl_library(pico_stdlib)
@@ -33,6 +35,10 @@ if (NOT TARGET pico_stdlib)
set_target_properties(${TARGET} PROPERTIES PICO_TARGET_STDIO_SEMIHOSTING ${ENABLED})
endfunction()
+ function(pico_enable_stdio_rtt TARGET ENABLED)
+ set_target_properties(${TARGET} PROPERTIES PICO_TARGET_STDIO_RTT ${ENABLED})
+ endfunction()
+
if (TARGET pico_stdio_uart)
target_link_libraries(pico_stdlib INTERFACE $<IF:$<BOOL:$<IF:$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_STDIO_UART>,>,${PICO_STDIO_UART},$<TARGET_PROPERTY:PICO_TARGET_STDIO_UART>>>,pico_stdio_uart,>)
target_link_libraries(pico_stdlib_headers INTERFACE $<IF:$<BOOL:$<IF:$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_STDIO_UART>,>,${PICO_STDIO_UART},$<TARGET_PROPERTY:PICO_TARGET_STDIO_UART>>>,pico_stdio_uart_headers,>)
@@ -48,4 +54,9 @@ if (NOT TARGET pico_stdlib)
target_link_libraries(pico_stdlib_headers INTERFACE $<IF:$<BOOL:$<IF:$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_STDIO_SEMIHOSTING>,>,${PICO_STDIO_SEMIHOSTING},$<TARGET_PROPERTY:PICO_TARGET_STDIO_SEMIHOSTING>>>,pico_stdio_semihosting_headers,>)
endif()
+ if (TARGET pico_stdio_rtt)
+ target_link_libraries(pico_stdlib INTERFACE $<IF:$<BOOL:$<IF:$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_STDIO_RTT>,>,${PICO_STDIO_RTT},$<TARGET_PROPERTY:PICO_TARGET_STDIO_RTT>>>,pico_stdio_rtt,>)
+ target_link_libraries(pico_stdlib_headers INTERFACE $<IF:$<BOOL:$<IF:$<STREQUAL:$<TARGET_PROPERTY:PICO_TARGET_STDIO_RTT>,>,${PICO_STDIO_RTT},$<TARGET_PROPERTY:PICO_TARGET_STDIO_RTT>>>,pico_stdio_rtt_headers,>)
+ endif()
+
endif()
diff --git a/test/pico_stdio_test/CMakeLists.txt b/test/pico_stdio_test/CMakeLists.txt
index e7759dd57d2d9f0898f053f5409610583bad9901..7031039895698e8e2f34782436535d185d6faddf 100644
--- a/test/pico_stdio_test/CMakeLists.txt
+++ b/test/pico_stdio_test/CMakeLists.txt
@@ -4,13 +4,21 @@ if (NOT PICO_TIME_NO_ALARM_SUPPORT)
pico_add_extra_outputs(pico_stdio_test_uart)
pico_enable_stdio_uart(pico_stdio_test_uart 1)
pico_enable_stdio_usb(pico_stdio_test_uart 0)
+ pico_enable_stdio_rtt(pico_stdio_test_uart 0)
+
+ add_executable(pico_stdio_test_rtt pico_stdio_test.c)
+ target_link_libraries(pico_stdio_test_rtt PRIVATE pico_stdlib pico_test pico_multicore)
+ pico_add_extra_outputs(pico_stdio_test_rtt)
+ pico_enable_stdio_uart(pico_stdio_test_rtt 0)
+ pico_enable_stdio_usb(pico_stdio_test_rtt 0)
+ pico_enable_stdio_rtt(pico_stdio_test_rtt 1)
add_executable(pico_stdio_test_usb pico_stdio_test.c)
target_link_libraries(pico_stdio_test_usb PRIVATE pico_stdlib pico_test pico_multicore)
target_compile_definitions(pico_stdio_test_usb PRIVATE
PICO_STDIO_USB_CONNECT_WAIT_TIMEOUT_MS=-1) # wait for USB connect
-
pico_add_extra_outputs(pico_stdio_test_usb)
pico_enable_stdio_uart(pico_stdio_test_usb 0)
pico_enable_stdio_usb(pico_stdio_test_usb 1)
-endif()
\ No newline at end of file
+ pico_enable_stdio_rtt(pico_stdio_test_usb 0)
+endif()