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【更新】STM32F4 demo 中的片内 flash 驱动

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Signed-off-by: armink <armink.ztl@gmail.com>
This commit is contained in:
armink 2019-02-10 20:32:27 +08:00
parent e379be4513
commit 7abf3d3500
1 changed files with 13 additions and 12 deletions
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25
demo/env/stm32f4xx/components/easyflash/port/ef_port.c vendored
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@ -102,12 +102,12 @@ EfErrCode ef_port_init(ef_env const **default_env, size_t *default_env_size) {
*/
EfErrCode ef_port_read(uint32_t addr, uint32_t *buf, size_t size) {
EfErrCode result = EF_NO_ERR;
EF_ASSERT(size % 4 == 0);
uint8_t *buf_8 = (uint8_t *)buf;
size_t i;
/*copy from flash to ram */
for (; size > 0; size -= 4, addr += 4, buf++) {
*buf = *(uint32_t *) addr;
for (i = 0; i < size; i++, addr ++, buf_8++) {
*buf_8 = *(uint8_t *) addr;
}
return result;
@ -165,18 +165,19 @@ EfErrCode ef_port_write(uint32_t addr, const uint32_t *buf, size_t size) {
EfErrCode result = EF_NO_ERR;
size_t i;
uint32_t read_data;
EF_ASSERT(size % 4 == 0);
uint8_t *buf_8 = (uint8_t *)buf;
FLASH_Unlock();
FLASH_ClearFlag(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR
| FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR);
for (i = 0; i < size; i += 4, buf++, addr += 4) {
FLASH_ClearFlag(
FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR | FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR
| FLASH_FLAG_PGSERR);
for (i = 0; i < size; i++, buf_8++, addr++)
{
/* write data */
FLASH_ProgramWord(addr, *buf);
read_data = *(uint32_t *)addr;
FLASH_ProgramByte(addr, *buf_8);
read_data = *(uint8_t *) addr;
/* check data */
if (read_data != *buf) {
if (read_data != *buf_8) {
result = EF_WRITE_ERR;
break;
}