/**
* @brief Erase the contents of the specified block.
* @param BlockAddr: The block start address.
* @retval FC_SUCCESS, FC_ERROR_PROTECTED, FC_ERROR_OVER_TIME.
*
*/
FC_Result FC_EraseBlock(uint32_t BlockAddr)
{
uint8_t BlockNum = FC_BLOCK_4;
assert_param(IS_FC_ADDR(BlockAddr)); /* Check whether it is in the flash address range */
BlockNum = FC_AddrToBlockNum(BlockAddr);
if (ENABLE == FC_GetBlockProtectState(BlockNum)) {
return FC_ERROR_PROTECTED;
}
return __FC_EraseBlock(BlockAddr);
}
/**
* @brief Write data to the specified page.
* @param PageAddr: The page start address.
* Data: The pointer to data buffer to be written into the page.
* The data size should be 256Byte.
* @retval FC_SUCCESS, FC_ERROR_PROTECTED, FC_ERROR_OVER_TIME.
*
*/
FC_Result FC_WritePage(uint32_t PageAddr, uint32_t * Data)
{
uint8_t BlockNum = FC_BLOCK_4;
assert_param(IS_FC_ADDR(PageAddr)); /* Check whether it is in the flash address range */
assert_param(IS_FC_PAGE_ADDR(PageAddr)); /* Check whether it is a page start address */
assert_param(IS_POINTER_NOT_NULL(Data));
BlockNum = FC_AddrToBlockNum(PageAddr);
if (ENABLE == FC_GetBlockProtectState(BlockNum)) {
return FC_ERROR_PROTECTED;
}
return __FC_WritePage(PageAddr, Data);
}
/**
* @brief Write data to the specified page.
* @param PageAddr: The page start address.
* Data: The pointer to data buffer to be written into the page.
* The data size should be 256Byte.
* @retval FC_SUCCESS, FC_ERROR_PROTECTED, FC_ERROR_OVER_TIME.
*
*/
FC_Result FC_WritePage(uint32_t PageAddr, uint32_t * Data)
{
FC_Result retval = FC_SUCCESS;
volatile uint32_t *addr1 = (uint32_t *) (FLASH_START_ADDR + FC_CMD_BC1_ADDR);
volatile uint32_t *addr2 = (uint32_t *) (FLASH_START_ADDR + FC_CMD_BC2_ADDR);
volatile uint32_t *addr3 = (uint32_t *) PageAddr;
uint32_t counter = FC_WRITE_PAGE_OVER_TIME;
uint32_t i = 0U;
uint32_t *source = Data;
uint8_t BlockNum = 0U;
assert_param(IS_FC_ADDR(PageAddr)); /* Check whether it is in the flash address range */
assert_param(IS_FC_PAGE_ADDR(PageAddr)); /* Check whether it is a page start address */
assert_param(IS_POINTER_NOT_NULL(Data));
BlockNum = FC_AddrToBlockNum(PageAddr);
if (ENABLE == FC_GetBlockProtectState(BlockNum)) {
retval = FC_ERROR_PROTECTED;
} else {
*addr1 = (uint32_t) 0x000000AA; /* bus cycle 1 */
*addr2 = (uint32_t) 0x00000055; /* bus cycle 2 */
*addr1 = (uint32_t) 0x000000A0; /* bus cycle 3 */
for (i = 0U; i < FC_PAGE_SIZE; i++) { /* bus cycle 4~67 */
*addr3 = *source;
source++;
}
__DSB();
while (BUSY == FC_GetBusyState()) { /* check if FLASH is busy with overtime counter */
if (!(counter--)) { /* check overtime */
retval = FC_ERROR_OVER_TIME;
break;
} else {
/* Do nothing */
}
}
}
return retval;
}
/**
* @brief Erase the contents of the specified block.
* @param BlockAddr: The block start address.
* @retval FC_SUCCESS, FC_ERROR_PROTECTED, FC_ERROR_OVER_TIME.
*
*/
FC_Result FC_EraseBlock(uint32_t BlockAddr)
{
FC_Result retval = FC_SUCCESS;
uint32_t blockaddr = BlockAddr & FC_BLOCK_ADDR_MASK;
volatile uint32_t *addr1 = (uint32_t *) (FLASH_START_ADDR + FC_CMD_BC1_ADDR);
volatile uint32_t *addr2 = (uint32_t *) (FLASH_START_ADDR + FC_CMD_BC2_ADDR);
volatile uint32_t *BA = (uint32_t *) blockaddr;
volatile uint32_t counter = FC_ERASE_BLOCK_OVER_TIME;
uint8_t BlockNum = 0U;
assert_param(IS_FC_ADDR(BlockAddr)); /* Check whether it is in the flash address range */
BlockNum = FC_AddrToBlockNum(BlockAddr);
if (ENABLE == FC_GetBlockProtectState(BlockNum)) {
retval = FC_ERROR_PROTECTED;
} else {
*addr1 = (uint32_t) 0x000000AA; /* bus cycle 1 */
*addr2 = (uint32_t) 0x00000055; /* bus cycle 2 */
*addr1 = (uint32_t) 0x00000080; /* bus cycle 3 */
*addr1 = (uint32_t) 0x000000AA; /* bus cycle 4 */
*addr2 = (uint32_t) 0x00000055; /* bus cycle 5 */
*BA = (uint32_t) 0x00000030; /* bus cycle 6 */
__DSB();
while (BUSY == FC_GetBusyState()) { /* check if FLASH is busy with overtime counter */
if (!(counter--)) { /* check overtime */
retval = FC_ERROR_OVER_TIME;
break;
} else {
/* Do nothing */
}
}
}
return retval;
}