You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
28 lines
673 B
28 lines
673 B
bool flash_is_locked(void) {
|
|
return (FLASH->CR & FLASH_CR_LOCK);
|
|
}
|
|
|
|
void flash_unlock(void) {
|
|
FLASH->KEYR = 0x45670123;
|
|
FLASH->KEYR = 0xCDEF89AB;
|
|
}
|
|
|
|
bool flash_erase_sector(uint8_t sector, bool unlocked) {
|
|
// don't erase the bootloader(sector 0)
|
|
if (sector != 0 && sector < 12 && unlocked) {
|
|
FLASH->CR = (sector << 3) | FLASH_CR_SER;
|
|
FLASH->CR |= FLASH_CR_STRT;
|
|
while (FLASH->SR & FLASH_SR_BSY);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void flash_write_word(void *prog_ptr, uint32_t data) {
|
|
uint32_t *pp = prog_ptr;
|
|
FLASH->CR = FLASH_CR_PSIZE_1 | FLASH_CR_PG;
|
|
*pp = data;
|
|
while (FLASH->SR & FLASH_SR_BSY);
|
|
}
|
|
|
|
void flush_write_buffer(void) { }
|
|
|