bool EraseFingerprint() {
// First, read the fingerprint. Avoid a Flash cycle if already erased.
BYTE fp[FINGERPRINT_SIZE];
ReadFingerprintToBuffer(fp);
if (IsFingerprintErased(fp)) return true;
// We actually need to erase. Backup OscTun, erase, rewrite OscTun.
BYTE tun = ReadOscTun();
return FlashErasePage(BOOTLOADER_CONFIG_PAGE)
&& WriteOscTun(tun);
}
/*** void justInTimeFlashErase(uint32 addrLow, uint32 addrHigh)
**
** Synopsis:
** Erases all pages that have not been erased in the address range
**
** Parameters:
** addrLow: low virtual address of where the page needs erased
** addrHigh 1 + the last high byte to be erased.
**
** Return Values:
** None
**
** Errors:
** None
**
** Notes:
**
** The address do not need to be page aligned.
**
*/
static void JustInTimeFlashErase(uint32_t addrLow, uint32_t addrHigh)
{
uint32_t addrCurPage = StartOfFlashPage(addrLow);
uint32_t addrLastPage = NextFlashPage(addrHigh - 1);
while(addrCurPage < addrLastPage)
{
// if this has never been erased, erase it.
if(!WasPageErased(addrCurPage))
{
FlashErasePage(addrCurPage);
SetPageAsErased(addrCurPage);
}
addrCurPage += BYTE_PAGE_SIZE;
}
}
int16_t G8_UpgradeErase(uint8_t* cmdData, uint16_t sizeOfCmdData, uint16_t start, uint16_t end) {
int16_t status;
uint32_t minAddress = G8_SpareMemStart();
uint32_t maxAddress = G8_SpareMemEnd();
if (start == 0 && end == 4) {
uint32_t address = *(uint32_t*)cmdData;
address &= ~(FLASH_PAGE_SIZE-1); //truncate down to page size
if (address >= minAddress && address < maxAddress ) {
status = FlashErasePage(address, FLASH_PASSWORD);
} else {
status = G8_UPGRADE_ERRNO_FLASH_ADDRESS_OUT_OF_SPARE;
}
} else {
status = G8_UPGRADE_ERRNO_BAD_PARAM;
}
return status;
}
bool EraseConfig() {
return FlashErasePage(BOOTLOADER_CONFIG_PAGE);
}
BOOL EraseFingerprint() {
return FlashErasePage(BOOTLOADER_FINGERPRINT_PAGE);
}