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update rtt to rev 25842

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hathach 2023-06-07 00:07:58 +07:00
parent b3fda4a354
commit 23f7130ae4
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13 changed files with 617 additions and 1670 deletions
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140
lib/SEGGER_RTT/RTT/SEGGER_RTT_Conf.h → lib/SEGGER_RTT/Config/SEGGER_RTT_Conf.h
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@ -3,7 +3,7 @@
* The Embedded Experts *
**********************************************************************
* *
* (c) 1995 - 2019 SEGGER Microcontroller GmbH *
* (c) 1995 - 2020 SEGGER Microcontroller GmbH *
* *
* www.segger.com Support: support@segger.com *
* *
@ -46,7 +46,7 @@ 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: 18601 $
Revision: $Rev: 24316 $
*/
@ -63,10 +63,25 @@ Revision: $Rev: 18601 $
*
**********************************************************************
*/
//
// 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
@ -135,18 +150,18 @@ Revision: $Rev: 18601 $
#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 LockState; \
unsigned int _SEGGER_RTT__LockState; \
__asm volatile ("mrs %0, primask \n\t" \
"movs r1, $1 \n\t" \
"movs r1, #1 \n\t" \
"msr primask, r1 \n\t" \
: "=r" (LockState) \
: "=r" (_SEGGER_RTT__LockState) \
: \
: "r1" \
: "r1", "cc" \
);
#define SEGGER_RTT_UNLOCK() __asm volatile ("msr primask, %0 \n\t" \
: \
: "r" (LockState) \
: "r" (_SEGGER_RTT__LockState) \
: \
); \
}
@ -155,32 +170,32 @@ Revision: $Rev: 18601 $
#define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
#endif
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
unsigned int _SEGGER_RTT__LockState; \
__asm volatile ("mrs %0, basepri \n\t" \
"mov r1, %1 \n\t" \
"msr basepri, r1 \n\t" \
: "=r" (LockState) \
: "=r" (_SEGGER_RTT__LockState) \
: "i"(SEGGER_RTT_MAX_INTERRUPT_PRIORITY) \
: "r1" \
: "r1", "cc" \
);
#define SEGGER_RTT_UNLOCK() __asm volatile ("msr basepri, %0 \n\t" \
: \
: "r" (LockState) \
: "r" (_SEGGER_RTT__LockState) \
: \
); \
}
#elif defined(__ARM_ARCH_7A__)
#elif (defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__))
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
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" (LockState) \
: "=r" (_SEGGER_RTT__LockState) \
: \
: "r1" \
: "r1", "cc" \
);
#define SEGGER_RTT_UNLOCK() __asm volatile ("mov r0, %0 \n\t" \
@ -190,17 +205,17 @@ Revision: $Rev: 18601 $
"orr r1, r1, r0 \n\t" \
"msr CPSR_c, r1 \n\t" \
: \
: "r" (LockState) \
: "r0", "r1" \
: "r" (_SEGGER_RTT__LockState) \
: "r0", "r1", "cc" \
); \
}
#elif defined(__riscv) || defined(__riscv_xlen)
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
unsigned int _SEGGER_RTT__LockState; \
__asm volatile ("csrr %0, mstatus \n\t" \
"csrci mstatus, 8 \n\t" \
"andi %0, %0, 8 \n\t" \
: "=r" (LockState) \
: "=r" (_SEGGER_RTT__LockState) \
: \
: \
);
@ -209,7 +224,7 @@ Revision: $Rev: 18601 $
"or %0, %0, a1 \n\t" \
"csrs mstatus, %0 \n\t" \
: \
: "r" (LockState) \
: "r" (_SEGGER_RTT__LockState) \
: "a1" \
); \
}
@ -227,11 +242,11 @@ Revision: $Rev: 18601 $
#if (defined (__ARM6M__) && (__CORE__ == __ARM6M__)) || \
(defined (__ARM8M_BASELINE__) && (__CORE__ == __ARM8M_BASELINE__))
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
LockState = __get_PRIMASK(); \
unsigned int _SEGGER_RTT__LockState; \
_SEGGER_RTT__LockState = __get_PRIMASK(); \
__set_PRIMASK(1);
#define SEGGER_RTT_UNLOCK() __set_PRIMASK(LockState); \
#define SEGGER_RTT_UNLOCK() __set_PRIMASK(_SEGGER_RTT__LockState); \
}
#elif (defined (__ARM7EM__) && (__CORE__ == __ARM7EM__)) || \
(defined (__ARM7M__) && (__CORE__ == __ARM7M__)) || \
@ -241,11 +256,35 @@ Revision: $Rev: 18601 $
#define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
#endif
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
LockState = __get_BASEPRI(); \
unsigned int _SEGGER_RTT__LockState; \
_SEGGER_RTT__LockState = __get_BASEPRI(); \
__set_BASEPRI(SEGGER_RTT_MAX_INTERRUPT_PRIORITY);
#define SEGGER_RTT_UNLOCK() __set_BASEPRI(LockState); \
#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
@ -256,11 +295,11 @@ Revision: $Rev: 18601 $
*/
#ifdef __ICCRX__
#define SEGGER_RTT_LOCK() { \
unsigned long LockState; \
LockState = __get_interrupt_state(); \
unsigned long _SEGGER_RTT__LockState; \
_SEGGER_RTT__LockState = __get_interrupt_state(); \
__disable_interrupt();
#define SEGGER_RTT_UNLOCK() __set_interrupt_state(LockState); \
#define SEGGER_RTT_UNLOCK() __set_interrupt_state(_SEGGER_RTT__LockState); \
}
#endif
@ -270,11 +309,11 @@ Revision: $Rev: 18601 $
*/
#ifdef __ICCRL78__
#define SEGGER_RTT_LOCK() { \
__istate_t LockState; \
LockState = __get_interrupt_state(); \
__istate_t _SEGGER_RTT__LockState; \
_SEGGER_RTT__LockState = __get_interrupt_state(); \
__disable_interrupt();
#define SEGGER_RTT_UNLOCK() __set_interrupt_state(LockState); \
#define SEGGER_RTT_UNLOCK() __set_interrupt_state(_SEGGER_RTT__LockState); \
}
#endif
@ -285,13 +324,13 @@ Revision: $Rev: 18601 $
#ifdef __CC_ARM
#if (defined __TARGET_ARCH_6S_M)
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
register unsigned char PRIMASK __asm( "primask"); \
LockState = PRIMASK; \
PRIMASK = 1u; \
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() PRIMASK = LockState; \
#define SEGGER_RTT_UNLOCK() _SEGGER_RTT__PRIMASK = _SEGGER_RTT__LockState; \
__schedule_barrier(); \
}
#elif (defined(__TARGET_ARCH_7_M) || defined(__TARGET_ARCH_7E_M))
@ -299,13 +338,13 @@ Revision: $Rev: 18601 $
#define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20)
#endif
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
unsigned int _SEGGER_RTT__LockState; \
register unsigned char BASEPRI __asm( "basepri"); \
LockState = BASEPRI; \
_SEGGER_RTT__LockState = BASEPRI; \
BASEPRI = SEGGER_RTT_MAX_INTERRUPT_PRIORITY; \
__schedule_barrier();
#define SEGGER_RTT_UNLOCK() BASEPRI = LockState; \
#define SEGGER_RTT_UNLOCK() BASEPRI = _SEGGER_RTT__LockState; \
__schedule_barrier(); \
}
#endif
@ -318,21 +357,21 @@ Revision: $Rev: 18601 $
#ifdef __TI_ARM__
#if defined (__TI_ARM_V6M0__)
#define SEGGER_RTT_LOCK() { \
unsigned int LockState; \
LockState = __get_PRIMASK(); \
unsigned int _SEGGER_RTT__LockState; \
_SEGGER_RTT__LockState = __get_PRIMASK(); \
__set_PRIMASK(1);
#define SEGGER_RTT_UNLOCK() __set_PRIMASK(LockState); \
#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 LockState; \
LockState = _set_interrupt_priority(SEGGER_RTT_MAX_INTERRUPT_PRIORITY);
unsigned int _SEGGER_RTT__LockState; \
_SEGGER_RTT__LockState = _set_interrupt_priority(SEGGER_RTT_MAX_INTERRUPT_PRIORITY);
#define SEGGER_RTT_UNLOCK() _set_interrupt_priority(LockState); \
#define SEGGER_RTT_UNLOCK() _set_interrupt_priority(_SEGGER_RTT__LockState); \
}
#endif
#endif
@ -342,12 +381,13 @@ Revision: $Rev: 18601 $
* RTT lock configuration for CCRX
*/
#ifdef __RX
#include <machine.h>
#define SEGGER_RTT_LOCK() { \
unsigned long LockState; \
LockState = get_psw() & 0x010000; \
unsigned long _SEGGER_RTT__LockState; \
_SEGGER_RTT__LockState = get_psw() & 0x010000; \
clrpsw_i();
#define SEGGER_RTT_UNLOCK() set_psw(get_psw() | LockState); \
#define SEGGER_RTT_UNLOCK() set_psw(get_psw() | _SEGGER_RTT__LockState); \
}
#endif

36
lib/SEGGER_RTT/LICENSE.md Normal file
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@ -0,0 +1,36 @@
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:
- 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.

34
lib/SEGGER_RTT/License.txt
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@ -1,34 +0,0 @@
Important - Read carefully:
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.
(c) 2014 - 2016 SEGGER Microcontroller GmbH
www.segger.com

24
lib/SEGGER_RTT/README.md Normal file
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@ -0,0 +1,24 @@
RTT
===
SEGGER RTT Sources
https://www.segger.com/products/debug-probes/j-link/technology/about-real-time-transfer
https://wiki.segger.com/RTT
## Included files
* `RTT/`
* `SEGGER_RTT.c` - Main module for RTT.
* `SEGGER_RTT.h` - Main header for RTT.
* `SEGGER_RTT_ASM_ARMv7M.S` - Assembly-optimized implementation of RTT functions for ARMv7M processors.
* `SEGGER_RTT_Printf.c` - Simple implementation of printf (`SEGGER_RTT_Printf()`) to write formatted strings via RTT.
* `Syscalls/`
* `SEGGER_RTT_Syscalls_*.c` - Low-level syscalls to retarget `printf()` to RTT with different toolchains.
* `Config/`
* `SEGGER_RTT_Conf.h` - RTT configuration file.
* `Examples/`
* `Main_RTT_InputEchoApp.c` - Example application which echoes input on Channel 0.
* `Main_RTT_MenuApp.c` - Example application to demonstrate RTT bi-directional functionality.
* `Main_RTT_PrintfTest.c` - Example application to test RTT's simple printf implementation.
* `Main_RTT_SpeedTestApp.c` - Example application to measure RTT performance. (Requires embOS)

20
lib/SEGGER_RTT/README.txt
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@ -1,20 +0,0 @@
README.txt for the SEGGER RTT Implementation Pack.
Included files:
===============
Root Directory
- Examples
- Main_RTT_InputEchoApp.c - Sample application which echoes input on Channel 0.
- Main_RTT_MenuApp.c - Sample application to demonstrate RTT bi-directional functionality.
- Main_RTT_PrintfTest.c - Sample application to test RTT small printf implementation.
- Main_RTT_SpeedTestApp.c - Sample application for measuring RTT performance. embOS needed.
- RTT
- SEGGER_RTT.c - The RTT implementation.
- SEGGER_RTT.h - Header for RTT implementation.
- SEGGER_RTT_Conf.h - Pre-processor configuration for the RTT implementation.
- SEGGER_RTT_Printf.c - Simple implementation of printf to write formatted strings via RTT.
- Syscalls
- RTT_Syscalls_GCC.c - Low-level syscalls to retarget printf() to RTT with GCC / Newlib.
- RTT_Syscalls_IAR.c - Low-level syscalls to retarget printf() to RTT with IAR compiler.
- RTT_Syscalls_KEIL.c - Low-level syscalls to retarget printf() to RTT with KEIL/uVision compiler.
- RTT_Syscalls_SES.c - Low-level syscalls to retarget printf() to RTT with SEGGER Embedded Studio.

409
lib/SEGGER_RTT/RTT/SEGGER_RTT.c
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217
lib/SEGGER_RTT/RTT/SEGGER_RTT.h
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@ -46,16 +46,14 @@ 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: 17697 $
Revision: $Rev: 25842 $
----------------------------------------------------------------------
*/
#ifndef SEGGER_RTT_H
#define SEGGER_RTT_H
#include "SEGGER_RTT_Conf.h"
#include "../Config/SEGGER_RTT_Conf.h"
/*********************************************************************
*
@ -63,46 +61,168 @@ Revision: $Rev: 17697 $
*
**********************************************************************
*/
#ifndef RTT_USE_ASM
#if (defined __SES_ARM) // SEGGER Embedded Studio
//
// 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
#elif (defined __CROSSWORKS_ARM) // Rowley Crossworks
#define _CC_HAS_RTT_ASM_SUPPORT 1
#elif (defined __GNUC__) // GCC
#define _CC_HAS_RTT_ASM_SUPPORT 1
#elif (defined __clang__) // Clang compiler
#define _CC_HAS_RTT_ASM_SUPPORT 1
#elif (defined __IASMARM__) // IAR assembler
#define _CC_HAS_RTT_ASM_SUPPORT 1
#elif (defined __ICCARM__) // IAR compiler
#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_7M__) // Cortex-M3/4
#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-M7
#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
#elif (defined __ARM7M__) // IAR Cortex-M3/4
#if (__CORE__ == __ARM7M__)
#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 __ARM7EM__) // IAR Cortex-M7
#if (__CORE__ == __ARM7EM__)
#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
@ -110,6 +230,35 @@ Revision: $Rev: 17697 $
#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>
@ -121,6 +270,21 @@ Revision: $Rev: 17697 $
**********************************************************************
*/
//
// 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
@ -138,7 +302,7 @@ typedef struct {
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
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;
//
@ -151,7 +315,7 @@ typedef struct {
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
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;
//
@ -165,6 +329,9 @@ typedef struct {
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;
/*********************************************************************
@ -214,7 +381,7 @@ unsigned SEGGER_RTT_GetBytesInBuffer (unsigned BufferIndex);
//
// Function macro for performance optimization
//
#define SEGGER_RTT_HASDATA(n) (_SEGGER_RTT.aDown[n].WrOff - _SEGGER_RTT.aDown[n].RdOff)
#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
@ -231,7 +398,7 @@ unsigned SEGGER_RTT_ReadUpBufferNoLock (unsigned BufferIndex, void* pDa
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.aUp[n].WrOff - _SEGGER_RTT.aUp[n].RdOff)
#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
/*********************************************************************
*

7
lib/SEGGER_RTT/RTT/SEGGER_RTT_ASM_ARMv7M.S
View File

@ -23,6 +23,7 @@ Additional information:
*
**********************************************************************
*/
#define _CCIAR 0
#define _CCCLANG 1
@ -182,6 +183,9 @@ _LoopCopyStraight: // memcpy(pRing->pBuffer + WrOf
SUBS R2,R2,#+1
BNE _LoopCopyStraight
_CSDone:
#if _CORE_NEEDS_DMB // Do not slow down cores that do not need a DMB instruction here
DMB // Cortex-M7 may delay memory writes and also change the order in which the writes happen. Therefore, make sure that all buffer writes are finished, before updating the <WrOff> in the struct
#endif
STR R0,[R6, #+12] // pRing->WrOff = WrOff + NumBytes;
MOVS R0,#+1
POP {R4-R7}
@ -214,6 +218,9 @@ _LoopCopyAfterWrapAround: // memcpy(pRing->pBuffer, pData
SUBS R2,R2,#+1
BNE _LoopCopyAfterWrapAround
_No2ChunkNeeded:
#if _CORE_NEEDS_DMB // Do not slow down cores that do not need a DMB instruction here
DMB // Cortex-M7 may delay memory writes and also change the order in which the writes happen. Therefore, make sure that all buffer writes are finished, before updating the <WrOff> in the struct
#endif
STR R4,[R6, #+12] // pRing->WrOff = NumBytes; => Must be written after copying data because J-Link may read control block asynchronously while writing into buffer
MOVS R0,#+1
POP {R4-R7}

500
lib/SEGGER_RTT/RTT/SEGGER_RTT_printf.c
View File

@ -1,500 +0,0 @@
/*********************************************************************
* SEGGER Microcontroller GmbH *
* The Embedded Experts *
**********************************************************************
* *
* (c) 1995 - 2019 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. *
* *
**********************************************************************
---------------------------END-OF-HEADER------------------------------
File : SEGGER_RTT_printf.c
Purpose : Replacement for printf to write formatted data via RTT
Revision: $Rev: 17697 $
----------------------------------------------------------------------
*/
#include "SEGGER_RTT.h"
#include "SEGGER_RTT_Conf.h"
/*********************************************************************
*
* Defines, configurable
*
**********************************************************************
*/
#ifndef SEGGER_RTT_PRINTF_BUFFER_SIZE
#define SEGGER_RTT_PRINTF_BUFFER_SIZE (64)
#endif
#include <stdlib.h>
#include <stdarg.h>
#define FORMAT_FLAG_LEFT_JUSTIFY (1u << 0)
#define FORMAT_FLAG_PAD_ZERO (1u << 1)
#define FORMAT_FLAG_PRINT_SIGN (1u << 2)
#define FORMAT_FLAG_ALTERNATE (1u << 3)
/*********************************************************************
*
* Types
*
**********************************************************************
*/
typedef struct {
char* pBuffer;
unsigned BufferSize;
unsigned Cnt;
int ReturnValue;
unsigned RTTBufferIndex;
} SEGGER_RTT_PRINTF_DESC;
/*********************************************************************
*
* Function prototypes
*
**********************************************************************
*/
/*********************************************************************
*
* Static code
*
**********************************************************************
*/
/*********************************************************************
*
* _StoreChar
*/
static void _StoreChar(SEGGER_RTT_PRINTF_DESC * p, char c) {
unsigned Cnt;
Cnt = p->Cnt;
if ((Cnt + 1u) <= p->BufferSize) {
*(p->pBuffer + Cnt) = c;
p->Cnt = Cnt + 1u;
p->ReturnValue++;
}
//
// Write part of string, when the buffer is full
//
if (p->Cnt == p->BufferSize) {
if (SEGGER_RTT_Write(p->RTTBufferIndex, p->pBuffer, p->Cnt) != p->Cnt) {
p->ReturnValue = -1;
} else {
p->Cnt = 0u;
}
}
}
/*********************************************************************
*
* _PrintUnsigned
*/
static void _PrintUnsigned(SEGGER_RTT_PRINTF_DESC * pBufferDesc, unsigned v, unsigned Base, unsigned NumDigits, unsigned FieldWidth, unsigned FormatFlags) {
static const char _aV2C[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
unsigned Div;
unsigned Digit;
unsigned Number;
unsigned Width;
char c;
Number = v;
Digit = 1u;
//
// Get actual field width
//
Width = 1u;
while (Number >= Base) {
Number = (Number / Base);
Width++;
}
if (NumDigits > Width) {
Width = NumDigits;
}
//
// Print leading chars if necessary
//
if ((FormatFlags & FORMAT_FLAG_LEFT_JUSTIFY) == 0u) {
if (FieldWidth != 0u) {
if (((FormatFlags & FORMAT_FLAG_PAD_ZERO) == FORMAT_FLAG_PAD_ZERO) && (NumDigits == 0u)) {
c = '0';
} else {
c = ' ';
}
while ((FieldWidth != 0u) && (Width < FieldWidth)) {
FieldWidth--;
_StoreChar(pBufferDesc, c);
if (pBufferDesc->ReturnValue < 0) {
break;
}
}
}
}
if (pBufferDesc->ReturnValue >= 0) {
//
// Compute Digit.
// Loop until Digit has the value of the highest digit required.
// Example: If the output is 345 (Base 10), loop 2 times until Digit is 100.
//
while (1) {
if (NumDigits > 1u) { // User specified a min number of digits to print? => Make sure we loop at least that often, before checking anything else (> 1 check avoids problems with NumDigits being signed / unsigned)
NumDigits--;
} else {
Div = v / Digit;
if (Div < Base) { // Is our divider big enough to extract the highest digit from value? => Done
break;
}
}
Digit *= Base;
}
//
// Output digits
//
do {
Div = v / Digit;
v -= Div * Digit;
_StoreChar(pBufferDesc, _aV2C[Div]);
if (pBufferDesc->ReturnValue < 0) {
break;
}
Digit /= Base;
} while (Digit);
//
// Print trailing spaces if necessary
//
if ((FormatFlags & FORMAT_FLAG_LEFT_JUSTIFY) == FORMAT_FLAG_LEFT_JUSTIFY) {
if (FieldWidth != 0u) {
while ((FieldWidth != 0u) && (Width < FieldWidth)) {
FieldWidth--;
_StoreChar(pBufferDesc, ' ');
if (pBufferDesc->ReturnValue < 0) {
break;
}
}
}
}
}
}
/*********************************************************************
*
* _PrintInt
*/
static void _PrintInt(SEGGER_RTT_PRINTF_DESC * pBufferDesc, int v, unsigned Base, unsigned NumDigits, unsigned FieldWidth, unsigned FormatFlags) {
unsigned Width;
int Number;
Number = (v < 0) ? -v : v;
//
// Get actual field width
//
Width = 1u;
while (Number >= (int)Base) {
Number = (Number / (int)Base);
Width++;
}
if (NumDigits > Width) {
Width = NumDigits;
}
if ((FieldWidth > 0u) && ((v < 0) || ((FormatFlags & FORMAT_FLAG_PRINT_SIGN) == FORMAT_FLAG_PRINT_SIGN))) {
FieldWidth--;
}
//
// Print leading spaces if necessary
//
if ((((FormatFlags & FORMAT_FLAG_PAD_ZERO) == 0u) || (NumDigits != 0u)) && ((FormatFlags & FORMAT_FLAG_LEFT_JUSTIFY) == 0u)) {
if (FieldWidth != 0u) {
while ((FieldWidth != 0u) && (Width < FieldWidth)) {
FieldWidth--;
_StoreChar(pBufferDesc, ' ');
if (pBufferDesc->ReturnValue < 0) {
break;
}
}
}
}
//
// Print sign if necessary
//
if (pBufferDesc->ReturnValue >= 0) {
if (v < 0) {
v = -v;
_StoreChar(pBufferDesc, '-');
} else if ((FormatFlags & FORMAT_FLAG_PRINT_SIGN) == FORMAT_FLAG_PRINT_SIGN) {
_StoreChar(pBufferDesc, '+');
} else {
}
if (pBufferDesc->ReturnValue >= 0) {
//
// Print leading zeros if necessary
//
if (((FormatFlags & FORMAT_FLAG_PAD_ZERO) == FORMAT_FLAG_PAD_ZERO) && ((FormatFlags & FORMAT_FLAG_LEFT_JUSTIFY) == 0u) && (NumDigits == 0u)) {
if (FieldWidth != 0u) {
while ((FieldWidth != 0u) && (Width < FieldWidth)) {
FieldWidth--;
_StoreChar(pBufferDesc, '0');
if (pBufferDesc->ReturnValue < 0) {
break;
}
}
}
}
if (pBufferDesc->ReturnValue >= 0) {
//
// Print number without sign
//
_PrintUnsigned(pBufferDesc, (unsigned)v, Base, NumDigits, FieldWidth, FormatFlags);
}
}
}
}
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* SEGGER_RTT_vprintf
*
* Function description
* Stores a formatted 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")
* sFormat Pointer to format string
* pParamList Pointer to the list of arguments for the format string
*
* Return values
* >= 0: Number of bytes which have been stored in the "Up"-buffer.
* < 0: Error
*/
int SEGGER_RTT_vprintf(unsigned BufferIndex, const char * sFormat, va_list * pParamList) {
char c;
SEGGER_RTT_PRINTF_DESC BufferDesc;
int v;
unsigned NumDigits;
unsigned FormatFlags;
unsigned FieldWidth;
char acBuffer[SEGGER_RTT_PRINTF_BUFFER_SIZE];
BufferDesc.pBuffer = acBuffer;
BufferDesc.BufferSize = SEGGER_RTT_PRINTF_BUFFER_SIZE;
BufferDesc.Cnt = 0u;
BufferDesc.RTTBufferIndex = BufferIndex;
BufferDesc.ReturnValue = 0;
do {
c = *sFormat;
sFormat++;
if (c == 0u) {
break;
}
if (c == '%') {
//
// Filter out flags
//
FormatFlags = 0u;
v = 1;
do {
c = *sFormat;
switch (c) {
case '-': FormatFlags |= FORMAT_FLAG_LEFT_JUSTIFY; sFormat++; break;
case '0': FormatFlags |= FORMAT_FLAG_PAD_ZERO; sFormat++; break;
case '+': FormatFlags |= FORMAT_FLAG_PRINT_SIGN; sFormat++; break;
case '#': FormatFlags |= FORMAT_FLAG_ALTERNATE; sFormat++; break;
default: v = 0; break;
}
} while (v);
//
// filter out field with
//
FieldWidth = 0u;
do {
c = *sFormat;
if ((c < '0') || (c > '9')) {
break;
}
sFormat++;
FieldWidth = (FieldWidth * 10u) + ((unsigned)c - '0');
} while (1);
//
// Filter out precision (number of digits to display)
//
NumDigits = 0u;
c = *sFormat;
if (c == '.') {
sFormat++;
do {
c = *sFormat;
if ((c < '0') || (c > '9')) {
break;
}
sFormat++;
NumDigits = NumDigits * 10u + ((unsigned)c - '0');
} while (1);
}
//
// Filter out length modifier
//
c = *sFormat;
do {
if ((c == 'l') || (c == 'h')) {
sFormat++;
c = *sFormat;
} else {
break;
}
} while (1);
//
// Handle specifiers
//
switch (c) {
case 'c': {
char c0;
v = va_arg(*pParamList, int);
c0 = (char)v;
_StoreChar(&BufferDesc, c0);
break;
}
case 'd':
v = va_arg(*pParamList, int);
_PrintInt(&BufferDesc, v, 10u, NumDigits, FieldWidth, FormatFlags);
break;
case 'u':
v = va_arg(*pParamList, int);
_PrintUnsigned(&BufferDesc, (unsigned)v, 10u, NumDigits, FieldWidth, FormatFlags);
break;
case 'x':
case 'X':
v = va_arg(*pParamList, int);
_PrintUnsigned(&BufferDesc, (unsigned)v, 16u, NumDigits, FieldWidth, FormatFlags);
break;
case 's':
{
const char * s = va_arg(*pParamList, const char *);
do {
c = *s;
s++;
if (c == '\0') {
break;
}
_StoreChar(&BufferDesc, c);
} while (BufferDesc.ReturnValue >= 0);
}
break;
case 'p':
v = va_arg(*pParamList, int);
_PrintUnsigned(&BufferDesc, (unsigned)v, 16u, 8u, 8u, 0u);
break;
case '%':
_StoreChar(&BufferDesc, '%');
break;
default:
break;
}
sFormat++;
} else {
_StoreChar(&BufferDesc, c);
}
} while (BufferDesc.ReturnValue >= 0);
if (BufferDesc.ReturnValue > 0) {
//
// Write remaining data, if any
//
if (BufferDesc.Cnt != 0u) {
SEGGER_RTT_Write(BufferIndex, acBuffer, BufferDesc.Cnt);
}
BufferDesc.ReturnValue += (int)BufferDesc.Cnt;
}
return BufferDesc.ReturnValue;
}
/*********************************************************************
*
* SEGGER_RTT_printf
*
* Function description
* Stores a formatted 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")
* sFormat Pointer to format string, followed by the arguments for conversion
*
* Return values
* >= 0: Number of bytes which have been stored in the "Up"-buffer.
* < 0: Error
*
* Notes
* (1) Conversion specifications have following syntax:
* %[flags][FieldWidth][.Precision]ConversionSpecifier
* (2) Supported flags:
* -: Left justify within the field width
* +: Always print sign extension for signed conversions
* 0: Pad with 0 instead of spaces. Ignored when using '-'-flag or precision
* Supported conversion specifiers:
* c: Print the argument as one char
* d: Print the argument as a signed integer
* u: Print the argument as an unsigned integer
* x: Print the argument as an hexadecimal integer
* s: Print the string pointed to by the argument
* p: Print the argument as an 8-digit hexadecimal integer. (Argument shall be a pointer to void.)
*/
int SEGGER_RTT_printf(unsigned BufferIndex, const char * sFormat, ...) {
int r;
va_list ParamList;
va_start(ParamList, sFormat);
r = SEGGER_RTT_vprintf(BufferIndex, sFormat, &ParamList);
va_end(ParamList);
return r;
}
/*************************** End of file ****************************/

120
lib/SEGGER_RTT/Syscalls/SEGGER_RTT_Syscalls_GCC.c
View File

@ -1,120 +0,0 @@
/*********************************************************************
* SEGGER Microcontroller GmbH *
* The Embedded Experts *
**********************************************************************
* *
* (c) 1995 - 2019 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. *
* *
**********************************************************************
---------------------------END-OF-HEADER------------------------------
File : SEGGER_RTT_Syscalls_GCC.c
Purpose : Low-level functions for using printf() via RTT in GCC.
To use RTT for printf output, include this file in your
application.
Revision: $Rev: 17697 $
----------------------------------------------------------------------
*/
#if (defined __GNUC__) && !(defined __SES_ARM) && !(defined __CROSSWORKS_ARM)
#include <reent.h> // required for _write_r
#include "SEGGER_RTT.h"
/*********************************************************************
*
* Types
*
**********************************************************************
*/
//
// If necessary define the _reent struct
// to match the one passed by the used standard library.
//
struct _reent;
/*********************************************************************
*
* Function prototypes
*
**********************************************************************
*/
int _write(int file, char *ptr, int len);
int _write_r(struct _reent *r, int file, const void *ptr, int len);
/*********************************************************************
*
* Global functions
*
**********************************************************************
*/
/*********************************************************************
*
* _write()
*
* Function description
* Low-level write function.
* libc subroutines will use this system routine for output to all files,
* including stdout.
* Write data via RTT.
*/
int _write(int file, char *ptr, int len) {
(void) file; /* Not used, avoid warning */
SEGGER_RTT_Write(0, ptr, len);
return len;
}
/*********************************************************************
*
* _write_r()
*
* Function description
* Low-level reentrant write function.
* libc subroutines will use this system routine for output to all files,
* including stdout.
* Write data via RTT.
*/
int _write_r(struct _reent *r, int file, const void *ptr, int len) {
(void) file; /* Not used, avoid warning */
(void) r; /* Not used, avoid warning */
SEGGER_RTT_Write(0, ptr, len);
return len;
}
#endif
/****** End Of File *************************************************/

115
lib/SEGGER_RTT/Syscalls/SEGGER_RTT_Syscalls_IAR.c
View File

@ -1,115 +0,0 @@
/*********************************************************************
* SEGGER Microcontroller GmbH *
* The Embedded Experts *
**********************************************************************
* *
* (c) 1995 - 2019 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. *
* *
**********************************************************************
---------------------------END-OF-HEADER------------------------------
File : SEGGER_RTT_Syscalls_IAR.c
Purpose : Low-level functions for using printf() via RTT in IAR.
To use RTT for printf output, include this file in your
application and set the Library Configuration to Normal.
Revision: $Rev: 17697 $
----------------------------------------------------------------------
*/
#ifdef __IAR_SYSTEMS_ICC__
//
// Since IAR EWARM V8 and EWRX V4, yfuns.h is considered as deprecated and LowLevelIOInterface.h
// shall be used instead. To not break any compatibility with older compiler versions, we have a
// version check in here.
//
#if ((defined __ICCARM__) && (__VER__ >= 8000000)) || ((defined __ICCRX__) && (__VER__ >= 400))
#include <LowLevelIOInterface.h>
#else
#include <yfuns.h>
#endif
#include "SEGGER_RTT.h"
#pragma module_name = "?__write"
/*********************************************************************
*
* Function prototypes
*
**********************************************************************
*/
size_t __write(int handle, const unsigned char * buffer, size_t size);
/*********************************************************************
*
* Global functions
*
**********************************************************************
*/
/*********************************************************************
*
* __write()
*
* Function description
* Low-level write function.
* Standard library subroutines will use this system routine
* for output to all files, including stdout.
* Write data via RTT.
*/
size_t __write(int handle, const unsigned char * buffer, size_t size) {
(void) handle; /* Not used, avoid warning */
SEGGER_RTT_Write(0, (const char*)buffer, size);
return size;
}
/*********************************************************************
*
* __write_buffered()
*
* Function description
* Low-level write function.
* Standard library subroutines will use this system routine
* for output to all files, including stdout.
* Write data via RTT.
*/
size_t __write_buffered(int handle, const unsigned char * buffer, size_t size) {
(void) handle; /* Not used, avoid warning */
SEGGER_RTT_Write(0, (const char*)buffer, size);
return size;
}
#endif
/****** End Of File *************************************************/

386
lib/SEGGER_RTT/Syscalls/SEGGER_RTT_Syscalls_KEIL.c
View File

@ -1,386 +0,0 @@
/*********************************************************************
* SEGGER Microcontroller GmbH *
* The Embedded Experts *
**********************************************************************
* *
* (c) 1995 - 2019 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. *
* *
**********************************************************************
---------------------------END-OF-HEADER------------------------------
File : RTT_Syscalls_KEIL.c
Purpose : Retargeting module for KEIL MDK-CM3.
Low-level functions for using printf() via RTT
Revision: $Rev: 17697 $
----------------------------------------------------------------------
*/
#ifdef __CC_ARM
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <rt_sys.h>
#include <rt_misc.h>
#include "SEGGER_RTT.h"
/*********************************************************************
*
* #pragmas
*
**********************************************************************
*/
#pragma import(__use_no_semihosting)
#ifdef _MICROLIB
#pragma import(__use_full_stdio)
#endif
/*********************************************************************
*
* Defines non-configurable
*
**********************************************************************
*/
/* Standard IO device handles - arbitrary, but any real file system handles must be
less than 0x8000. */
#define STDIN 0x8001 // Standard Input Stream
#define STDOUT 0x8002 // Standard Output Stream
#define STDERR 0x8003 // Standard Error Stream
/*********************************************************************
*
* Public const
*
**********************************************************************
*/
#if __ARMCC_VERSION < 5000000
//const char __stdin_name[] = "STDIN";
const char __stdout_name[] = "STDOUT";
const char __stderr_name[] = "STDERR";
#endif
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* _ttywrch
*
* Function description:
* Outputs a character to the console
*
* Parameters:
* c - character to output
*
*/
void _ttywrch(int c) {
fputc(c, stdout); // stdout
fflush(stdout);
}
/*********************************************************************
*
* _sys_open
*
* Function description:
* Opens the device/file in order to do read/write operations
*
* Parameters:
* sName - sName of the device/file to open
* OpenMode - This parameter is currently ignored
*
* Return value:
* != 0 - Handle to the object to open, otherwise
* == 0 -"device" is not handled by this module
*
*/
FILEHANDLE _sys_open(const char * sName, int OpenMode) {
(void)OpenMode;
// Register standard Input Output devices.
if (strcmp(sName, __stdout_name) == 0) {
return (STDOUT);
} else if (strcmp(sName, __stderr_name) == 0) {
return (STDERR);
} else
return (0); // Not implemented
}
/*********************************************************************
*
* _sys_close
*
* Function description:
* Closes the handle to the open device/file
*
* Parameters:
* hFile - Handle to a file opened via _sys_open
*
* Return value:
* 0 - device/file closed
*
*/
int _sys_close(FILEHANDLE hFile) {
(void)hFile;
return 0; // Not implemented
}
/*********************************************************************
*
* _sys_write
*
* Function description:
* Writes the data to an open handle.
* Currently this function only outputs data to the console
*
* Parameters:
* hFile - Handle to a file opened via _sys_open
* pBuffer - Pointer to the data that shall be written
* NumBytes - Number of bytes to write
* Mode - The Mode that shall be used
*
* Return value:
* Number of bytes *not* written to the file/device
*
*/
int _sys_write(FILEHANDLE hFile, const unsigned char * pBuffer, unsigned NumBytes, int Mode) {
int r = 0;
(void)Mode;
if (hFile == STDOUT) {
SEGGER_RTT_Write(0, (const char*)pBuffer, NumBytes);
return 0;
}
return r;
}
/*********************************************************************
*
* _sys_read
*
* Function description:
* Reads data from an open handle.
* Currently this modules does nothing.
*
* Parameters:
* hFile - Handle to a file opened via _sys_open
* pBuffer - Pointer to buffer to store the read data
* NumBytes - Number of bytes to read
* Mode - The Mode that shall be used
*
* Return value:
* Number of bytes read from the file/device
*
*/
int _sys_read(FILEHANDLE hFile, unsigned char * pBuffer, unsigned NumBytes, int Mode) {
(void)hFile;
(void)pBuffer;
(void)NumBytes;
(void)Mode;
return (0); // Not implemented
}
/*********************************************************************
*
* _sys_istty
*
* Function description:
* This function shall return whether the opened file
* is a console device or not.
*
* Parameters:
* hFile - Handle to a file opened via _sys_open
*
* Return value:
* 1 - Device is a console
* 0 - Device is not a console
*
*/
int _sys_istty(FILEHANDLE hFile) {
if (hFile > 0x8000) {
return (1);
}
return (0); // Not implemented
}
/*********************************************************************
*
* _sys_seek
*
* Function description:
* Seeks via the file to a specific position
*
* Parameters:
* hFile - Handle to a file opened via _sys_open
* Pos -
*
* Return value:
* int -
*
*/
int _sys_seek(FILEHANDLE hFile, long Pos) {
(void)hFile;
(void)Pos;
return (0); // Not implemented
}
/*********************************************************************
*
* _sys_ensure
*
* Function description:
*
*
* Parameters:
* hFile - Handle to a file opened via _sys_open
*
* Return value:
* int -
*
*/
int _sys_ensure(FILEHANDLE hFile) {
(void)hFile;
return (-1); // Not implemented
}
/*********************************************************************
*
* _sys_flen
*
* Function description:
* Returns the length of the opened file handle
*
* Parameters:
* hFile - Handle to a file opened via _sys_open
*
* Return value:
* Length of the file
*
*/
long _sys_flen(FILEHANDLE hFile) {
(void)hFile;
return (0); // Not implemented
}
/*********************************************************************
*
* _sys_tmpnam
*
* Function description:
* This function converts the file number fileno for a temporary
* file to a unique filename, for example, tmp0001.
*
* Parameters:
* pBuffer - Pointer to a buffer to store the name
* FileNum - file number to convert
* MaxLen - Size of the buffer
*
* Return value:
* 1 - Error
* 0 - Success
*
*/
int _sys_tmpnam(char * pBuffer, int FileNum, unsigned MaxLen) {
(void)pBuffer;
(void)FileNum;
(void)MaxLen;
return (1); // Not implemented
}
/*********************************************************************
*
* _sys_command_string
*
* Function description:
* This function shall execute a system command.
*
* Parameters:
* cmd - Pointer to the command string
* len - Length of the string
*
* Return value:
* == NULL - Command was not successfully executed
* == sCmd - Command was passed successfully
*
*/
char * _sys_command_string(char * cmd, int len) {
(void)len;
return cmd; // Not implemented
}
/*********************************************************************
*
* _sys_exit
*
* Function description:
* This function is called when the application returns from main
*
* Parameters:
* ReturnCode - Return code from the main function
*
*
*/
void _sys_exit(int ReturnCode) {
(void)ReturnCode;
while (1); // Not implemented
}
#if __ARMCC_VERSION >= 5000000
/*********************************************************************
*
* stdout_putchar
*
* Function description:
* Put a character to the stdout
*
* Parameters:
* ch - Character to output
*
*
*/
int stdout_putchar(int ch) {
(void)ch;
return ch; // Not implemented
}
#endif
#endif
/*************************** End of file ****************************/

247
lib/SEGGER_RTT/Syscalls/SEGGER_RTT_Syscalls_SES.c
View File

@ -1,247 +0,0 @@
/*********************************************************************
* SEGGER Microcontroller GmbH *
* The Embedded Experts *
**********************************************************************
* *
* (c) 1995 - 2019 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. *
* *
**********************************************************************
---------------------------END-OF-HEADER------------------------------
File : SEGGER_RTT_Syscalls_SES.c
Purpose : Reimplementation of printf, puts and __getchar using RTT
in SEGGER Embedded Studio.
To use RTT for printf output, include this file in your
application.
Revision: $Rev: 18539 $
----------------------------------------------------------------------
*/
#if (defined __SES_ARM) || (defined __SES_RISCV) || (defined __CROSSWORKS_ARM)
#include "SEGGER_RTT.h"
#include <stdarg.h>
#include <stdio.h>
#include "limits.h"
#include "__libc.h"
#include "__vfprintf.h"
/*********************************************************************
*
* Defines, configurable
*
**********************************************************************
*/
//
// Select string formatting implementation.
//
// RTT printf formatting
// - Configurable stack usage. (SEGGER_RTT_PRINTF_BUFFER_SIZE in SEGGER_RTT_Conf.h)
// - No maximum string length.
// - Limited conversion specifiers and flags. (See SEGGER_RTT_printf.c)
// Standard library printf formatting
// - Configurable formatting capabilities.
// - Full conversion specifier and flag support.
// - Maximum string length has to be known or (slightly) slower character-wise output.
//
// #define PRINTF_USE_SEGGER_RTT_FORMATTING 0 // Use standard library formatting
// #define PRINTF_USE_SEGGER_RTT_FORMATTING 1 // Use RTT formatting
//
#ifndef PRINTF_USE_SEGGER_RTT_FORMATTING
#define PRINTF_USE_SEGGER_RTT_FORMATTING 0
#endif
//
// If using standard library formatting,
// select maximum output string buffer size or character-wise output.
//
// #define PRINTF_BUFFER_SIZE 0 // Use character-wise output
// #define PRINTF_BUFFER_SIZE 128 // Default maximum string length
//
#ifndef PRINTF_BUFFER_SIZE
#define PRINTF_BUFFER_SIZE 128
#endif
#if PRINTF_USE_SEGGER_RTT_FORMATTING // Use SEGGER RTT formatting implementation
/*********************************************************************
*
* Function prototypes
*
**********************************************************************
*/
int SEGGER_RTT_vprintf(unsigned BufferIndex, const char * sFormat, va_list * pParamList);
/*********************************************************************
*
* Global functions, printf
*
**********************************************************************
*/
/*********************************************************************
*
* printf()
*
* Function description
* print a formatted string using RTT and SEGGER RTT formatting.
*/
int printf(const char *fmt,...) {
int n;
va_list args;
va_start (args, fmt);
n = SEGGER_RTT_vprintf(0, fmt, &args);
va_end(args);
return n;
}
#elif PRINTF_BUFFER_SIZE == 0 // Use standard library formatting with character-wise output
/*********************************************************************
*
* Static functions
*
**********************************************************************
*/
static int _putchar(int x, __printf_tag_ptr ctx) {
(void)ctx;
SEGGER_RTT_Write(0, (char *)&x, 1);
return x;
}
/*********************************************************************
*
* Global functions, printf
*
**********************************************************************
*/
/*********************************************************************
*
* printf()
*
* Function description
* print a formatted string character-wise, using RTT and standard
* library formatting.
*/
int printf(const char *fmt, ...) {
int n;
va_list args;
__printf_t iod;
va_start(args, fmt);
iod.string = 0;
iod.maxchars = INT_MAX;
iod.output_fn = _putchar;
SEGGER_RTT_LOCK();
n = __vfprintf(&iod, fmt, args);
SEGGER_RTT_UNLOCK();
va_end(args);
return n;
}
#else // Use standard library formatting with static buffer
/*********************************************************************
*
* Global functions, printf
*
**********************************************************************
*/
/*********************************************************************
*
* printf()
*
* Function description
* print a formatted string using RTT and standard library formatting.
*/
int printf(const char *fmt,...) {
int n;
char aBuffer[PRINTF_BUFFER_SIZE];
va_list args;
va_start (args, fmt);
n = vsnprintf(aBuffer, sizeof(aBuffer), fmt, args);
if (n > (int)sizeof(aBuffer)) {
SEGGER_RTT_Write(0, aBuffer, sizeof(aBuffer));
} else if (n > 0) {
SEGGER_RTT_Write(0, aBuffer, n);
}
va_end(args);
return n;
}
#endif
/*********************************************************************
*
* Global functions
*
**********************************************************************
*/
/*********************************************************************
*
* puts()
*
* Function description
* print a string using RTT.
*/
int puts(const char *s) {
return SEGGER_RTT_WriteString(0, s);
}
/*********************************************************************
*
* __putchar()
*
* Function description
* Write one character via RTT.
*/
int __putchar(int x, __printf_tag_ptr ctx) {
(void)ctx;
SEGGER_RTT_Write(0, (char *)&x, 1);
return x;
}
/*********************************************************************
*
* __getchar()
*
* Function description
* Wait for and get a character via RTT.
*/
int __getchar() {
return SEGGER_RTT_WaitKey();
}
#endif
/****** End Of File *************************************************/