Posted on July 26, 2017 at 11:15Hi,
After the jumping bootloader, the EXTI_line7 not work!
boot.c
/* Test if user code is programmed starting from address 'APPLICATION_ADDRESS' */
if (((*(__IO uint32_t*)FLASH_USER_START_ADDR) & 0x2FFE0000 ) == 0x20000000)
{
/* Jump to user application */
JumpAddress = *(__IO uint32_t*) (FLASH_USER_START_ADDR + 4);
Jump_To_Application = (pFunction) JumpAddress;
/* Initialize user application's Stack Pointer */
__set_MSP(*(__IO uint32_t*) FLASH_USER_START_ADDR);
__disable_irq();
/* Jump to application */
Jump_To_Application();
}
application.c
int main(void)
{
unsigned long ulChk = 0;
unsigned int uiLen = 0;
GPIO_InitTypeDef GPIO_InitStructure;
uint32_t i = 0;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE); // Clock not Reset
/* Relocate by software the vector table to the internal SRAM at 0x20000000 ***/
/* Copy the vector table from the Flash (mapped at the base of the application
load address 0x08003000) to the base address of the SRAM at 0x20000000. */
for(i = 0; i < 48; i++)
{
VectorTable[i] = *(__IO uint32_t*)(APPLICATION_ADDRESS + (i<<2));
}
/* Enable the SYSCFG peripheral clock*/
RCC_APB2PeriphResetCmd(RCC_APB2Periph_SYSCFG, ENABLE);
/* Remap SRAM at 0x00000000 */
SYSCFG_MemoryRemapConfig(SYSCFG_MemoryRemap_SRAM);
/***************** Add your application code here ***************************/
/* Unlock the Flash Program Erase controller */
FLASH_Unlock();
// main loop...
}
I'm have add SYSCFG clock enabled prior to remapping the RAM, but EXTI line 7 not work!
thanks
