Added STM32 Project
This commit is contained in:
160
STM32/CM4/Core/Src/main.c
Normal file
160
STM32/CM4/Core/Src/main.c
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@@ -0,0 +1,160 @@
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||||
/* USER CODE BEGIN Header */
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||||
/**
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||||
******************************************************************************
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||||
* @file : main.c
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||||
* @brief : Main program body
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 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.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
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||||
/* USER CODE END Header */
|
||||
/* Includes ------------------------------------------------------------------*/
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||||
#include "main.h"
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||||
|
||||
/* Private includes ----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Includes */
|
||||
|
||||
/* USER CODE END Includes */
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PTD */
|
||||
|
||||
/* USER CODE END PTD */
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PD */
|
||||
|
||||
/* DUAL_CORE_BOOT_SYNC_SEQUENCE: Define for dual core boot synchronization */
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||||
/* demonstration code based on hardware semaphore */
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||||
/* This define is present in both CM7/CM4 projects */
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||||
/* To comment when developping/debugging on a single core */
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#define DUAL_CORE_BOOT_SYNC_SEQUENCE
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||||
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||||
#if defined(DUAL_CORE_BOOT_SYNC_SEQUENCE)
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#ifndef HSEM_ID_0
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#define HSEM_ID_0 (0U) /* HW semaphore 0*/
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||||
#endif
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||||
#endif /* DUAL_CORE_BOOT_SYNC_SEQUENCE */
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||||
|
||||
/* USER CODE END PD */
|
||||
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PM */
|
||||
|
||||
/* USER CODE END PM */
|
||||
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
|
||||
/* USER CODE BEGIN PV */
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||||
|
||||
/* USER CODE END PV */
|
||||
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
/* USER CODE BEGIN PFP */
|
||||
|
||||
/* USER CODE END PFP */
|
||||
|
||||
/* Private user code ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
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||||
|
||||
/**
|
||||
* @brief The application entry point.
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||||
* @retval int
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||||
*/
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||||
int main(void)
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||||
{
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||||
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||||
/* USER CODE BEGIN 1 */
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||||
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||||
/* USER CODE END 1 */
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||||
|
||||
/* USER CODE BEGIN Boot_Mode_Sequence_1 */
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||||
#if defined(DUAL_CORE_BOOT_SYNC_SEQUENCE)
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||||
/*HW semaphore Clock enable*/
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||||
__HAL_RCC_HSEM_CLK_ENABLE();
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||||
/* Activate HSEM notification for Cortex-M4*/
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||||
HAL_HSEM_ActivateNotification(__HAL_HSEM_SEMID_TO_MASK(HSEM_ID_0));
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||||
/*
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||||
Domain D2 goes to STOP mode (Cortex-M4 in deep-sleep) waiting for Cortex-M7 to
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||||
perform system initialization (system clock config, external memory configuration.. )
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||||
*/
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||||
HAL_PWREx_ClearPendingEvent();
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||||
HAL_PWREx_EnterSTOPMode(PWR_MAINREGULATOR_ON, PWR_STOPENTRY_WFE, PWR_D2_DOMAIN);
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||||
/* Clear HSEM flag */
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||||
__HAL_HSEM_CLEAR_FLAG(__HAL_HSEM_SEMID_TO_MASK(HSEM_ID_0));
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||||
|
||||
#endif /* DUAL_CORE_BOOT_SYNC_SEQUENCE */
|
||||
/* USER CODE END Boot_Mode_Sequence_1 */
|
||||
/* MCU Configuration--------------------------------------------------------*/
|
||||
|
||||
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
|
||||
HAL_Init();
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||||
|
||||
/* USER CODE BEGIN Init */
|
||||
|
||||
/* USER CODE END Init */
|
||||
|
||||
/* USER CODE BEGIN SysInit */
|
||||
|
||||
/* USER CODE END SysInit */
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||||
|
||||
/* Initialize all configured peripherals */
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||||
/* USER CODE BEGIN 2 */
|
||||
|
||||
/* USER CODE END 2 */
|
||||
|
||||
/* Infinite loop */
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||||
/* USER CODE BEGIN WHILE */
|
||||
while (1)
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||||
{
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||||
/* USER CODE END WHILE */
|
||||
|
||||
/* USER CODE BEGIN 3 */
|
||||
}
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||||
/* USER CODE END 3 */
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||||
}
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||||
|
||||
/* USER CODE BEGIN 4 */
|
||||
|
||||
/* USER CODE END 4 */
|
||||
|
||||
/**
|
||||
* @brief This function is executed in case of error occurrence.
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||||
* @retval None
|
||||
*/
|
||||
void Error_Handler(void)
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||||
{
|
||||
/* USER CODE BEGIN Error_Handler_Debug */
|
||||
/* User can add his own implementation to report the HAL error return state */
|
||||
__disable_irq();
|
||||
while (1)
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||||
{
|
||||
}
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||||
/* USER CODE END Error_Handler_Debug */
|
||||
}
|
||||
#ifdef USE_FULL_ASSERT
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||||
/**
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||||
* @brief Reports the name of the source file and the source line number
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||||
* where the assert_param error has occurred.
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||||
* @param file: pointer to the source file name
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||||
* @param line: assert_param error line source number
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||||
* @retval None
|
||||
*/
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||||
void assert_failed(uint8_t *file, uint32_t line)
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||||
{
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||||
/* USER CODE BEGIN 6 */
|
||||
/* User can add his own implementation to report the file name and line number,
|
||||
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
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||||
/* USER CODE END 6 */
|
||||
}
|
||||
#endif /* USE_FULL_ASSERT */
|
||||
80
STM32/CM4/Core/Src/stm32h7xx_hal_msp.c
Normal file
80
STM32/CM4/Core/Src/stm32h7xx_hal_msp.c
Normal file
@@ -0,0 +1,80 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file stm32h7xx_hal_msp.c
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||||
* @brief This file provides code for the MSP Initialization
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||||
* and de-Initialization codes.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 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.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "main.h"
|
||||
/* USER CODE BEGIN Includes */
|
||||
|
||||
/* USER CODE END Includes */
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN TD */
|
||||
|
||||
/* USER CODE END TD */
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Define */
|
||||
|
||||
/* USER CODE END Define */
|
||||
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Macro */
|
||||
|
||||
/* USER CODE END Macro */
|
||||
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PV */
|
||||
|
||||
/* USER CODE END PV */
|
||||
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
/* USER CODE BEGIN PFP */
|
||||
|
||||
/* USER CODE END PFP */
|
||||
|
||||
/* External functions --------------------------------------------------------*/
|
||||
/* USER CODE BEGIN ExternalFunctions */
|
||||
|
||||
/* USER CODE END ExternalFunctions */
|
||||
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
/**
|
||||
* Initializes the Global MSP.
|
||||
*/
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||||
void HAL_MspInit(void)
|
||||
{
|
||||
|
||||
/* USER CODE BEGIN MspInit 0 */
|
||||
|
||||
/* USER CODE END MspInit 0 */
|
||||
|
||||
__HAL_RCC_SYSCFG_CLK_ENABLE();
|
||||
|
||||
/* System interrupt init*/
|
||||
|
||||
/* USER CODE BEGIN MspInit 1 */
|
||||
|
||||
/* USER CODE END MspInit 1 */
|
||||
}
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
203
STM32/CM4/Core/Src/stm32h7xx_it.c
Normal file
203
STM32/CM4/Core/Src/stm32h7xx_it.c
Normal file
@@ -0,0 +1,203 @@
|
||||
/* USER CODE BEGIN Header */
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file stm32h7xx_it.c
|
||||
* @brief Interrupt Service Routines.
|
||||
******************************************************************************
|
||||
* @attention
|
||||
*
|
||||
* Copyright (c) 2026 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.
|
||||
*
|
||||
******************************************************************************
|
||||
*/
|
||||
/* USER CODE END Header */
|
||||
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include "main.h"
|
||||
#include "stm32h7xx_it.h"
|
||||
/* Private includes ----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN Includes */
|
||||
/* USER CODE END Includes */
|
||||
|
||||
/* Private typedef -----------------------------------------------------------*/
|
||||
/* USER CODE BEGIN TD */
|
||||
|
||||
/* USER CODE END TD */
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PD */
|
||||
|
||||
/* USER CODE END PD */
|
||||
|
||||
/* Private macro -------------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PM */
|
||||
|
||||
/* USER CODE END PM */
|
||||
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN PV */
|
||||
|
||||
/* USER CODE END PV */
|
||||
|
||||
/* Private function prototypes -----------------------------------------------*/
|
||||
/* USER CODE BEGIN PFP */
|
||||
|
||||
/* USER CODE END PFP */
|
||||
|
||||
/* Private user code ---------------------------------------------------------*/
|
||||
/* USER CODE BEGIN 0 */
|
||||
|
||||
/* USER CODE END 0 */
|
||||
|
||||
/* External variables --------------------------------------------------------*/
|
||||
|
||||
/* USER CODE BEGIN EV */
|
||||
|
||||
/* USER CODE END EV */
|
||||
|
||||
/******************************************************************************/
|
||||
/* Cortex Processor Interruption and Exception Handlers */
|
||||
/******************************************************************************/
|
||||
/**
|
||||
* @brief This function handles Non maskable interrupt.
|
||||
*/
|
||||
void NMI_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN NonMaskableInt_IRQn 0 */
|
||||
|
||||
/* USER CODE END NonMaskableInt_IRQn 0 */
|
||||
/* USER CODE BEGIN NonMaskableInt_IRQn 1 */
|
||||
while (1)
|
||||
{
|
||||
}
|
||||
/* USER CODE END NonMaskableInt_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Hard fault interrupt.
|
||||
*/
|
||||
void HardFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN HardFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END HardFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_HardFault_IRQn 0 */
|
||||
/* USER CODE END W1_HardFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Memory management fault.
|
||||
*/
|
||||
void MemManage_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN MemoryManagement_IRQn 0 */
|
||||
|
||||
/* USER CODE END MemoryManagement_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_MemoryManagement_IRQn 0 */
|
||||
/* USER CODE END W1_MemoryManagement_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Pre-fetch fault, memory access fault.
|
||||
*/
|
||||
void BusFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN BusFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END BusFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_BusFault_IRQn 0 */
|
||||
/* USER CODE END W1_BusFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Undefined instruction or illegal state.
|
||||
*/
|
||||
void UsageFault_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN UsageFault_IRQn 0 */
|
||||
|
||||
/* USER CODE END UsageFault_IRQn 0 */
|
||||
while (1)
|
||||
{
|
||||
/* USER CODE BEGIN W1_UsageFault_IRQn 0 */
|
||||
/* USER CODE END W1_UsageFault_IRQn 0 */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles System service call via SWI instruction.
|
||||
*/
|
||||
void SVC_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN SVCall_IRQn 0 */
|
||||
|
||||
/* USER CODE END SVCall_IRQn 0 */
|
||||
/* USER CODE BEGIN SVCall_IRQn 1 */
|
||||
|
||||
/* USER CODE END SVCall_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Debug monitor.
|
||||
*/
|
||||
void DebugMon_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN DebugMonitor_IRQn 0 */
|
||||
|
||||
/* USER CODE END DebugMonitor_IRQn 0 */
|
||||
/* USER CODE BEGIN DebugMonitor_IRQn 1 */
|
||||
|
||||
/* USER CODE END DebugMonitor_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles Pendable request for system service.
|
||||
*/
|
||||
void PendSV_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN PendSV_IRQn 0 */
|
||||
|
||||
/* USER CODE END PendSV_IRQn 0 */
|
||||
/* USER CODE BEGIN PendSV_IRQn 1 */
|
||||
|
||||
/* USER CODE END PendSV_IRQn 1 */
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief This function handles System tick timer.
|
||||
*/
|
||||
void SysTick_Handler(void)
|
||||
{
|
||||
/* USER CODE BEGIN SysTick_IRQn 0 */
|
||||
|
||||
/* USER CODE END SysTick_IRQn 0 */
|
||||
HAL_IncTick();
|
||||
/* USER CODE BEGIN SysTick_IRQn 1 */
|
||||
|
||||
/* USER CODE END SysTick_IRQn 1 */
|
||||
}
|
||||
|
||||
/******************************************************************************/
|
||||
/* STM32H7xx Peripheral Interrupt Handlers */
|
||||
/* Add here the Interrupt Handlers for the used peripherals. */
|
||||
/* For the available peripheral interrupt handler names, */
|
||||
/* please refer to the startup file (startup_stm32h7xx.s). */
|
||||
/******************************************************************************/
|
||||
|
||||
/* USER CODE BEGIN 1 */
|
||||
|
||||
/* USER CODE END 1 */
|
||||
244
STM32/CM4/Core/Src/syscalls.c
Normal file
244
STM32/CM4/Core/Src/syscalls.c
Normal file
@@ -0,0 +1,244 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file syscalls.c
|
||||
* @author Auto-generated by STM32CubeMX
|
||||
* @brief Minimal System calls file
|
||||
*
|
||||
* For more information about which c-functions
|
||||
* need which of these lowlevel functions
|
||||
* please consult the Newlib or Picolibc 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;
|
||||
}
|
||||
|
||||
clock_t _times(struct tms *buf)
|
||||
{
|
||||
(void)buf;
|
||||
return -1;
|
||||
}
|
||||
|
||||
int _stat(const 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;
|
||||
}
|
||||
|
||||
// --- Picolibc Specific Section ---
|
||||
#if defined(__PICOLIBC__)
|
||||
|
||||
/**
|
||||
* @brief Picolibc helper function to output a character to a FILE stream.
|
||||
* This redirects the output to the low-level __io_putchar function.
|
||||
* @param c Character to write.
|
||||
* @param file FILE stream pointer (ignored).
|
||||
* @retval int The character written.
|
||||
*/
|
||||
static int starm_putc(char c, FILE *file)
|
||||
{
|
||||
(void) file;
|
||||
__io_putchar(c);
|
||||
return c;
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Picolibc helper function to input a character from a FILE stream.
|
||||
* This redirects the input from the low-level __io_getchar function.
|
||||
* @param file FILE stream pointer (ignored).
|
||||
* @retval int The character read, cast to an unsigned char then int.
|
||||
*/
|
||||
static int starm_getc(FILE *file)
|
||||
{
|
||||
unsigned char c;
|
||||
(void) file;
|
||||
c = __io_getchar();
|
||||
return c;
|
||||
}
|
||||
|
||||
// Define and initialize the standard I/O streams for Picolibc.
|
||||
// FDEV_SETUP_STREAM connects the starm_putc and starm_getc helper functions to a FILE structure.
|
||||
// _FDEV_SETUP_RW indicates the stream is for reading and writing.
|
||||
static FILE __stdio = FDEV_SETUP_STREAM(starm_putc,
|
||||
starm_getc,
|
||||
NULL,
|
||||
_FDEV_SETUP_RW);
|
||||
|
||||
// Assign the standard stream pointers (stdin, stdout, stderr) to the initialized stream.
|
||||
// Picolibc uses these pointers for standard I/O operations (printf, scanf, etc.).
|
||||
FILE *const stdin = &__stdio;
|
||||
__strong_reference(stdin, stdout);
|
||||
__strong_reference(stdin, stderr);
|
||||
|
||||
// Create strong aliases mapping standard C library function names (without underscore)
|
||||
// to the implemented system call stubs (with underscore). Picolibc uses these
|
||||
// standard names internally, so this linking is required.
|
||||
__strong_reference(_read, read);
|
||||
__strong_reference(_write, write);
|
||||
__strong_reference(_times, times);
|
||||
__strong_reference(_execve, execve);
|
||||
__strong_reference(_fork, fork);
|
||||
__strong_reference(_link, link);
|
||||
__strong_reference(_unlink, unlink);
|
||||
__strong_reference(_stat, stat);
|
||||
__strong_reference(_wait, wait);
|
||||
__strong_reference(_open, open);
|
||||
__strong_reference(_close, close);
|
||||
__strong_reference(_lseek, lseek);
|
||||
__strong_reference(_isatty, isatty);
|
||||
__strong_reference(_fstat, fstat);
|
||||
__strong_reference(_exit, exit);
|
||||
__strong_reference(_kill, kill);
|
||||
__strong_reference(_getpid, getpid);
|
||||
|
||||
#endif //__PICOLIBC__
|
||||
87
STM32/CM4/Core/Src/sysmem.c
Normal file
87
STM32/CM4/Core/Src/sysmem.c
Normal file
@@ -0,0 +1,87 @@
|
||||
/**
|
||||
******************************************************************************
|
||||
* @file sysmem.c
|
||||
* @author Generated by STM32CubeMX
|
||||
* @brief System Memory calls file
|
||||
*
|
||||
* For more information about which C functions
|
||||
* need which of these lowlevel functions
|
||||
* please consult the Newlib or Picolibc 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>
|
||||
#include <stddef.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;
|
||||
}
|
||||
|
||||
#if defined(__PICOLIBC__)
|
||||
// Picolibc expects syscalls without the leading underscore.
|
||||
// This creates a strong alias so that
|
||||
// calls to `sbrk()` are resolved to our `_sbrk()` implementation.
|
||||
__strong_reference(_sbrk, sbrk);
|
||||
#endif
|
||||
Reference in New Issue
Block a user