Posted on July 22, 2011 at 08:20I have move the vector table address to the range where my application is run and I have also a hard fault handler. The flash page size is 1kByte. Now I have comment out the flash page erase command, because no hard fault handler was called and the JTAG debugger was hanging.
The next step, I tried, was programm the flash. Now the hard fault handler was called, when I try to write at the flash (no matter which flash range I use).
FLASH_Status ProgramWord(uint32_t Address, uint32_t Data)
{
FLASH_Status status = FLASH_COMPLETE;
__IO uint32_t tmp = 0;
/* Wait for last operation to be completed */
status = WaitForLastOperation(ProgramTimeout);
if(status == FLASH_COMPLETE)
{
/* if the previous operation is completed, proceed to program the new first
half word */
FLASH->CR |= CR_PG_Set;
*(__IO uint16_t*)Address = (uint16_t)Data;
// after this command, hard fault handler called /* Wait for last operation to be completed */
status = WaitForLastOperation(ProgramTimeout);
if(status == FLASH_COMPLETE)
{
/* if the previous operation is completed, proceed to program the new second
half word */
tmp = Address + 2;
*(__IO uint16_t*) tmp = Data >> 16;
/* Wait for last operation to be completed */
status = WaitForLastOperation(ProgramTimeout);
/* Disable the PG Bit */
FLASH->CR &= CR_PG_Reset;
}
else
{
/* Disable the PG Bit */
FLASH->CR &= CR_PG_Reset;
}
}
