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Fixed

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This commit is contained in:
Attila Body 2025-05-27 19:51:33 +02:00
parent 033122ffb3
commit 2a52eee7ad
Signed by: abody
GPG key ID: BD0C6214E68FB5CF
19 changed files with 1882 additions and 57139 deletions
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18
Src/main.c
View file

@ -6,13 +6,12 @@
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
@ -170,7 +169,10 @@ void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
@ -186,7 +188,7 @@ void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

19
Src/stm32f4xx_hal_msp.c
View file

@ -1,19 +1,18 @@
/* USER CODE BEGIN Header */
/**
******************************************************************************
* File Name : stm32f4xx_hal_msp.c
* Description : This file provides code for the MSP Initialization
* and de-Initialization codes.
* @file stm32f4xx_hal_msp.c
* @brief This file provides code for the MSP Initialization
* and de-Initialization codes.
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
@ -32,7 +31,7 @@
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN Define */
/* USER CODE END Define */
/* Private macro -------------------------------------------------------------*/

147
Src/stm32f4xx_it.c
View file

@ -6,24 +6,15 @@
******************************************************************************
* @attention
*
* <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
* All rights reserved.</center></h2>
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* This generated C file is symlinked as C++ and excluded from the build
* USE_CPLUSPLUS macro is defined externally (Preprocessor Settings or Makefile)
*/
#ifdef __cplusplus
extern "C" {
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
@ -31,38 +22,16 @@ extern "C" {
#include "stm32f4xx_it.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#ifndef USE_CPLUSPLUS
#include "f4ll_c/usart_handler.h"
#include "f4ll_c/crc_handler.h"
#include "f4ll_c/console_handler.h"
#include "f4ll_c/memcpy_dma.h"
#endif
#include "globals.h"
#include "diag.h"
}
#ifdef USE_CPLUSPLUS
#include "globals_cpp.h"
#include "f4ll/memcpydma.h"
#include "f4ll/consolehandler.h"
#endif
extern "C" {
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN TD */
#define HardFault_Handler(x) __attribute__((weak)) HardFault_Handler(x)
#define MemManage_Handler(x) __attribute__((weak)) MemManage_Handler(x)
#define BusFault_Handler(x) __attribute__((weak)) BusFault_Handler(x)
#define UsageFault_Handler(x) __attribute__((weak)) UsageFault_Handler(x)
/* USER CODE END TD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
@ -103,7 +72,9 @@ void NMI_Handler(void)
/* USER CODE END NonMaskableInt_IRQn 0 */
/* USER CODE BEGIN NonMaskableInt_IRQn 1 */
while (1)
{
}
/* USER CODE END NonMaskableInt_IRQn 1 */
}
@ -233,11 +204,7 @@ void SysTick_Handler(void)
void DMA1_Stream1_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Stream1_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::UsartCore::HandleRxDmaIrq(g_usarts[USART3_OFFSET]);
#else
HandleUsartRxDmaIrq(&g_uartStatuses[USART3_OFFSET]);
#endif
/* USER CODE END DMA1_Stream1_IRQn 0 */
/* USER CODE BEGIN DMA1_Stream1_IRQn 1 */
@ -250,7 +217,7 @@ void DMA1_Stream1_IRQHandler(void)
void DMA1_Stream2_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Stream2_IRQn 0 */
// console rx
/* USER CODE END DMA1_Stream2_IRQn 0 */
/* USER CODE BEGIN DMA1_Stream2_IRQn 1 */
@ -263,11 +230,7 @@ void DMA1_Stream2_IRQHandler(void)
void DMA1_Stream3_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Stream3_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleTxDmaIrq(g_usarts[USART3_OFFSET]);
#else
HandleUsartTxDmaIrq(&g_uartStatuses[USART3_OFFSET]);
#endif
/* USER CODE END DMA1_Stream3_IRQn 0 */
/* USER CODE BEGIN DMA1_Stream3_IRQn 1 */
@ -280,11 +243,7 @@ void DMA1_Stream3_IRQHandler(void)
void DMA1_Stream4_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Stream4_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::ConsoleHandler::HandleTxDmaIrq(&f4ll::ConsoleHandler::Instance());
#else
HandleConsoleTxDmaIrq(&g_ConsoleTxDmaInfo, UART4);
#endif
/* USER CODE END DMA1_Stream4_IRQn 0 */
/* USER CODE BEGIN DMA1_Stream4_IRQn 1 */
@ -297,11 +256,7 @@ void DMA1_Stream4_IRQHandler(void)
void DMA1_Stream5_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Stream5_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleRxDmaIrq(g_usarts[USART2_OFFSET]);
#else
HandleUsartRxDmaIrq(&g_uartStatuses[USART2_OFFSET]);
#endif
/* USER CODE END DMA1_Stream5_IRQn 0 */
/* USER CODE BEGIN DMA1_Stream5_IRQn 1 */
@ -314,11 +269,7 @@ void DMA1_Stream5_IRQHandler(void)
void DMA1_Stream6_IRQHandler(void)
{
/* USER CODE BEGIN DMA1_Stream6_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleTxDmaIrq(g_usarts[USART2_OFFSET]);
#else
HandleUsartTxDmaIrq(&g_uartStatuses[USART2_OFFSET]);
#endif
/* USER CODE END DMA1_Stream6_IRQn 0 */
/* USER CODE BEGIN DMA1_Stream6_IRQn 1 */
@ -344,11 +295,7 @@ void SPI2_IRQHandler(void)
void USART1_IRQHandler(void)
{
/* USER CODE BEGIN USART1_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleUsartIrq(g_usarts[USART1_OFFSET]);
#else
HandleUsartIrq(&g_uartStatuses[USART1_OFFSET]);
#endif
/* USER CODE END USART1_IRQn 0 */
/* USER CODE BEGIN USART1_IRQn 1 */
@ -361,11 +308,7 @@ void USART1_IRQHandler(void)
void USART2_IRQHandler(void)
{
/* USER CODE BEGIN USART2_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleUsartIrq(g_usarts[USART2_OFFSET]);
#else
HandleUsartIrq(&g_uartStatuses[USART2_OFFSET]);
#endif
/* USER CODE END USART2_IRQn 0 */
/* USER CODE BEGIN USART2_IRQn 1 */
@ -378,11 +321,7 @@ void USART2_IRQHandler(void)
void USART3_IRQHandler(void)
{
/* USER CODE BEGIN USART3_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleUsartIrq(g_usarts[USART3_OFFSET]);
#else
HandleUsartIrq(&g_uartStatuses[USART3_OFFSET]);
#endif
/* USER CODE END USART3_IRQn 0 */
/* USER CODE BEGIN USART3_IRQn 1 */
@ -395,11 +334,7 @@ void USART3_IRQHandler(void)
void UART4_IRQHandler(void)
{
/* USER CODE BEGIN UART4_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::ConsoleHandler::HandleUsartIrq(&f4ll::ConsoleHandler::Instance());
#else
Con_HandleUsartIrq(UART4);
#endif
/* USER CODE END UART4_IRQn 0 */
/* USER CODE BEGIN UART4_IRQn 1 */
@ -412,11 +347,7 @@ void UART4_IRQHandler(void)
void DMA2_Stream1_IRQHandler(void)
{
/* USER CODE BEGIN DMA2_Stream1_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleRxDmaIrq(g_usarts[USART6_OFFSET]);
#else
HandleUsartRxDmaIrq(&g_uartStatuses[USART6_OFFSET]);
#endif
/* USER CODE END DMA2_Stream1_IRQn 0 */
/* USER CODE BEGIN DMA2_Stream1_IRQn 1 */
@ -429,11 +360,7 @@ void DMA2_Stream1_IRQHandler(void)
void DMA2_Stream2_IRQHandler(void)
{
/* USER CODE BEGIN DMA2_Stream2_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleRxDmaIrq(g_usarts[USART1_OFFSET]);
#else
HandleUsartRxDmaIrq(&g_uartStatuses[USART1_OFFSET]);
#endif
/* USER CODE END DMA2_Stream2_IRQn 0 */
/* USER CODE BEGIN DMA2_Stream2_IRQn 1 */
@ -446,11 +373,7 @@ void DMA2_Stream2_IRQHandler(void)
void DMA2_Stream3_IRQHandler(void)
{
/* USER CODE BEGIN DMA2_Stream3_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::MemcpyDma::Instance().DmaTransferCompleted();
#else
Mcd_HandleDmaIrq();
#endif
/* USER CODE END DMA2_Stream3_IRQn 0 */
/* USER CODE BEGIN DMA2_Stream3_IRQn 1 */
@ -463,11 +386,7 @@ void DMA2_Stream3_IRQHandler(void)
void DMA2_Stream4_IRQHandler(void)
{
/* USER CODE BEGIN DMA2_Stream4_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::CrcHandler::Instance().DmaTransferCompleted();
#else
HandleCrcDmaIrq(&g_crcStatus);
#endif
/* USER CODE END DMA2_Stream4_IRQn 0 */
/* USER CODE BEGIN DMA2_Stream4_IRQn 1 */
@ -480,11 +399,7 @@ void DMA2_Stream4_IRQHandler(void)
void DMA2_Stream6_IRQHandler(void)
{
/* USER CODE BEGIN DMA2_Stream6_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleTxDmaIrq(g_usarts[USART6_OFFSET]);
#else
HandleUsartTxDmaIrq(&g_uartStatuses[USART6_OFFSET]);
#endif
/* USER CODE END DMA2_Stream6_IRQn 0 */
/* USER CODE BEGIN DMA2_Stream6_IRQn 1 */
@ -497,11 +412,7 @@ void DMA2_Stream6_IRQHandler(void)
void DMA2_Stream7_IRQHandler(void)
{
/* USER CODE BEGIN DMA2_Stream7_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleTxDmaIrq(g_usarts[USART1_OFFSET]);
#else
HandleUsartTxDmaIrq(&g_uartStatuses[USART1_OFFSET]);
#endif
/* USER CODE END DMA2_Stream7_IRQn 0 */
/* USER CODE BEGIN DMA2_Stream7_IRQn 1 */
@ -514,11 +425,7 @@ void DMA2_Stream7_IRQHandler(void)
void USART6_IRQHandler(void)
{
/* USER CODE BEGIN USART6_IRQn 0 */
#ifdef USE_CPLUSPLUS
f4ll::PacketUsart::HandleUsartIrq(g_usarts[USART6_OFFSET]);
#else
HandleUsartIrq(&g_uartStatuses[USART6_OFFSET]);
#endif
/* USER CODE END USART6_IRQn 0 */
/* USER CODE BEGIN USART6_IRQn 1 */
@ -527,6 +434,4 @@ void USART6_IRQHandler(void)
/* USER CODE BEGIN 1 */
}
#endif // __cplusplus
/* USER CODE END 1 */

1
Src/stm32f4xx_it_.cpp
View file

@ -1 +0,0 @@
stm32f4xx_it.c

360
Src/syscalls.c
View file

@ -1,184 +1,176 @@
/**
*****************************************************************************
**
** File : syscalls.c
**
** Author : Auto-generated by STM32CubeIDE
**
** Abstract : STM32CubeIDE Minimal System calls file
**
** For more information about which c-functions
** need which of these lowlevel functions
** please consult the Newlib libc-manual
**
** Environment : STM32CubeIDE MCU
**
** Distribution: The file is distributed as is, without any warranty
** of any kind.
**
*****************************************************************************
**
** <h2><center>&copy; COPYRIGHT(c) 2018 STMicroelectronics</center></h2>
**
** Redistribution and use in source and binary forms, with or without modification,
** are permitted provided that the following conditions are met:
** 1. Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright notice,
** this list of conditions and the following disclaimer in the documentation
** and/or other materials provided with the distribution.
** 3. Neither the name of STMicroelectronics nor the names of its contributors
** may be used to endorse or promote products derived from this software
** without specific prior written permission.
**
** 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
**
**
*****************************************************************************
*/
/* Includes */
#include <sys/stat.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
#include <signal.h>
#include <time.h>
#include <sys/time.h>
#include <sys/times.h>
/* Variables */
//#undef errno
extern int errno;
extern int __io_putchar(int ch) __attribute__((weak));
extern int __io_getchar(void) __attribute__((weak));
register char * stack_ptr asm("sp");
char *__env[1] = { 0 };
char **environ = __env;
/* Functions */
void initialise_monitor_handles()
{
}
int _getpid(void)
{
return 1;
}
int _kill(int pid, int sig)
{
errno = EINVAL;
return -1;
}
void _exit (int status)
{
_kill(status, -1);
while (1) {} /* Make sure we hang here */
}
__attribute__((weak)) int _read(int file, char *ptr, int len)
{
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
*ptr++ = __io_getchar();
}
return len;
}
__attribute__((weak)) int _write(int file, char *ptr, int len)
{
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
__io_putchar(*ptr++);
}
return len;
}
int _close(int file)
{
return -1;
}
int _fstat(int file, struct stat *st)
{
st->st_mode = S_IFCHR;
return 0;
}
int _isatty(int file)
{
return 1;
}
int _lseek(int file, int ptr, int dir)
{
return 0;
}
int _open(char *path, int flags, ...)
{
/* Pretend like we always fail */
return -1;
}
int _wait(int *status)
{
errno = ECHILD;
return -1;
}
int _unlink(char *name)
{
errno = ENOENT;
return -1;
}
int _times(struct tms *buf)
{
return -1;
}
int _stat(char *file, struct stat *st)
{
st->st_mode = S_IFCHR;
return 0;
}
int _link(char *old, char *new)
{
errno = EMLINK;
return -1;
}
int _fork(void)
{
errno = EAGAIN;
return -1;
}
int _execve(char *name, char **argv, char **env)
{
errno = ENOMEM;
return -1;
}
/**
******************************************************************************
* @file syscalls.c
* @author Auto-generated by STM32CubeIDE
* @brief STM32CubeIDE Minimal System calls file
*
* For more information about which c-functions
* need which of these lowlevel functions
* please consult the Newlib libc-manual
******************************************************************************
* @attention
*
* Copyright (c) 2020-2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes */
#include <sys/stat.h>
#include <stdlib.h>
#include <errno.h>
#include <stdio.h>
#include <signal.h>
#include <time.h>
#include <sys/time.h>
#include <sys/times.h>
/* Variables */
extern int __io_putchar(int ch) __attribute__((weak));
extern int __io_getchar(void) __attribute__((weak));
char *__env[1] = { 0 };
char **environ = __env;
/* Functions */
void initialise_monitor_handles()
{
}
int _getpid(void)
{
return 1;
}
int _kill(int pid, int sig)
{
(void)pid;
(void)sig;
errno = EINVAL;
return -1;
}
void _exit (int status)
{
_kill(status, -1);
while (1) {} /* Make sure we hang here */
}
__attribute__((weak)) int _read(int file, char *ptr, int len)
{
(void)file;
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
*ptr++ = __io_getchar();
}
return len;
}
__attribute__((weak)) int _write(int file, char *ptr, int len)
{
(void)file;
int DataIdx;
for (DataIdx = 0; DataIdx < len; DataIdx++)
{
__io_putchar(*ptr++);
}
return len;
}
int _close(int file)
{
(void)file;
return -1;
}
int _fstat(int file, struct stat *st)
{
(void)file;
st->st_mode = S_IFCHR;
return 0;
}
int _isatty(int file)
{
(void)file;
return 1;
}
int _lseek(int file, int ptr, int dir)
{
(void)file;
(void)ptr;
(void)dir;
return 0;
}
int _open(char *path, int flags, ...)
{
(void)path;
(void)flags;
/* Pretend like we always fail */
return -1;
}
int _wait(int *status)
{
(void)status;
errno = ECHILD;
return -1;
}
int _unlink(char *name)
{
(void)name;
errno = ENOENT;
return -1;
}
int _times(struct tms *buf)
{
(void)buf;
return -1;
}
int _stat(char *file, struct stat *st)
{
(void)file;
st->st_mode = S_IFCHR;
return 0;
}
int _link(char *old, char *new)
{
(void)old;
(void)new;
errno = EMLINK;
return -1;
}
int _fork(void)
{
errno = EAGAIN;
return -1;
}
int _execve(char *name, char **argv, char **env)
{
(void)name;
(void)argv;
(void)env;
errno = ENOMEM;
return -1;
}

162
Src/sysmem.c
View file

@ -1,83 +1,79 @@
/**
*****************************************************************************
**
** File : sysmem.c
**
** Author : Auto-generated by STM32CubeIDE
**
** Abstract : STM32CubeIDE Minimal System Memory calls file
**
** For more information about which c-functions
** need which of these lowlevel functions
** please consult the Newlib libc-manual
**
** Environment : STM32CubeIDE MCU
**
** Distribution: The file is distributed as is, without any warranty
** of any kind.
**
*****************************************************************************
**
** <h2><center>&copy; COPYRIGHT(c) 2018 STMicroelectronics</center></h2>
**
** Redistribution and use in source and binary forms, with or without modification,
** are permitted provided that the following conditions are met:
** 1. Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright notice,
** this list of conditions and the following disclaimer in the documentation
** and/or other materials provided with the distribution.
** 3. Neither the name of STMicroelectronics nor the names of its contributors
** may be used to endorse or promote products derived from this software
** without specific prior written permission.
**
** 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
**
**
*****************************************************************************
*/
/* Includes */
#include <errno.h>
#include <stdio.h>
/* Variables */
extern int errno;
register char * stack_ptr asm("sp");
/* Functions */
/**
_sbrk
Increase program data space. Malloc and related functions depend on this
**/
caddr_t _sbrk(int incr)
{
extern char end asm("end");
static char *heap_end;
char *prev_heap_end;
if (heap_end == 0)
heap_end = &end;
prev_heap_end = heap_end;
if (heap_end + incr > stack_ptr)
{
errno = ENOMEM;
return (caddr_t) -1;
}
heap_end += incr;
return (caddr_t) prev_heap_end;
}
/**
******************************************************************************
* @file sysmem.c
* @author Generated by STM32CubeIDE
* @brief STM32CubeIDE System Memory calls file
*
* For more information about which C functions
* need which of these lowlevel functions
* please consult the newlib libc manual
******************************************************************************
* @attention
*
* Copyright (c) 2025 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes */
#include <errno.h>
#include <stdint.h>
/**
* Pointer to the current high watermark of the heap usage
*/
static uint8_t *__sbrk_heap_end = NULL;
/**
* @brief _sbrk() allocates memory to the newlib heap and is used by malloc
* and others from the C library
*
* @verbatim
* ############################################################################
* # .data # .bss # newlib heap # MSP stack #
* # # # # Reserved by _Min_Stack_Size #
* ############################################################################
* ^-- RAM start ^-- _end _estack, RAM end --^
* @endverbatim
*
* This implementation starts allocating at the '_end' linker symbol
* The '_Min_Stack_Size' linker symbol reserves a memory for the MSP stack
* The implementation considers '_estack' linker symbol to be RAM end
* NOTE: If the MSP stack, at any point during execution, grows larger than the
* reserved size, please increase the '_Min_Stack_Size'.
*
* @param incr Memory size
* @return Pointer to allocated memory
*/
void *_sbrk(ptrdiff_t incr)
{
extern uint8_t _end; /* Symbol defined in the linker script */
extern uint8_t _estack; /* Symbol defined in the linker script */
extern uint32_t _Min_Stack_Size; /* Symbol defined in the linker script */
const uint32_t stack_limit = (uint32_t)&_estack - (uint32_t)&_Min_Stack_Size;
const uint8_t *max_heap = (uint8_t *)stack_limit;
uint8_t *prev_heap_end;
/* Initialize heap end at first call */
if (NULL == __sbrk_heap_end)
{
__sbrk_heap_end = &_end;
}
/* Protect heap from growing into the reserved MSP stack */
if (__sbrk_heap_end + incr > max_heap)
{
errno = ENOMEM;
return (void *)-1;
}
prev_heap_end = __sbrk_heap_end;
__sbrk_heap_end += incr;
return (void *)prev_heap_end;
}

1508
Src/system_stm32f4xx.c
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