stm32 app跳转到bootloader

例如百度和csdn上都没有相关记录，转载一下实现方式跟bootloader跳转到app一样，只是反向#include "drv_reset.h"#include "main.h"void perform_system_reset( void ){__disable_irq();NVIC_SystemReset();}// https://stm32f4-discovery.net/2017/04/

weixin_45413907

1580人浏览 · 2022-03-27 23:46:37

weixin_45413907 · 2022-03-27 23:46:37 发布

例如百度和csdn上都没有相关记录，转载一下
实现方式跟bootloader跳转到app一样，只是反向

#include "drv_reset.h"
#include "main.h"

void perform_system_reset( void )
{
	__disable_irq();
	NVIC_SystemReset();
}

// https://stm32f4-discovery.net/2017/04/tutorial-jump-system-memory-software-stm32/
void jump_to_bootloader( void )
{
	__enable_irq();
	HAL_RCC_DeInit();
	HAL_DeInit();
	SysTick->CTRL = SysTick->LOAD = SysTick->VAL = 0;
	__HAL_SYSCFG_REMAPMEMORY_SYSTEMFLASH();

	const uint32_t p = (*((uint32_t *) 0x1FFF0000));
	__set_MSP( p );

	void (*SysMemBootJump)(void);
	SysMemBootJump = (void (*)(void)) (*((uint32_t *) 0x1FFF0004));
	SysMemBootJump();

	while( 1 ) {}
}

原文链接https://github.com/markusgritsch/SilF4ware/blob/master/SilF4ware/drv_reset.c
https://stm32f4-discovery.net/2017/04/tutorial-jump-system-memory-software-stm32/