void halInternalSetMfgTokenData(int16u token, void *data, int8u len)
{
StStatus flashStatus;
int32u realAddress = (DATA_BIG_INFO_BASE|token);
int8u * flash = (int8u *)realAddress;
int32u i;
//The flash library (and hardware) requires the address and length to both
//be multiples of 16bits. Since this API is only valid for writing to
//the CIB, verify that the token+len falls within the CIB.
assert((token&1) != 1);
assert((len&1) != 1);
assert((realAddress>=CIB_BOTTOM) && ((realAddress+len-1)<=CIB_TOP));
//CIB manufacturing tokens can only be written by on-chip code if the token
//is currently unprogrammed. Verify the entire token is unwritten. The
//flash library performs a similar check, but verifying here ensures that
//the entire token is unprogrammed and will prevent partial writes.
for(i=0;i<len;i++) {
assert(flash[i] == 0xFF);
}
//Remember, the flash library operates in 16bit quantities, but the
//token system operates in 8bit quantities. Hence the divide by 2.
flashStatus = halInternalFlashWrite(realAddress, data, (len/2));
assert(flashStatus == ST_SUCCESS);
}
/*******************************************************************************
** 函数名称: set_startup_info
** 函数功能: 将重启信息出入flash
** 入口参数: StartUp_Info：描述重启信息结构体
** 出口参数: 无
** 备 注: 无
*******************************************************************************/
static void set_startup_info(StartUp_Info *value)
{
uint32_t len; //写入flash中的长度(半字长)
len = (sizeof(StartUp_Info)+1)/2; //半字长度为单位
#define POWERON_FLASH (*((volatile int32u *)addr))
halInternalFlashErase(MFB_PAGE_ERASE,addr); //将StartUp_Info结构写入flash
while(halFlashEraseIsActive());
halInternalFlashWrite(addr,(unsigned short*)value,len);
}
/*--------------------------------------------------------------------------*/
void
stm32w_flash_erase(uint8_t sector)
{
/* halInternalFlashErase(MFB_PAGE_ERASE, COFFEE_START +
(sector) * COFFEE_SECTOR_SIZE); */
uint16_t data = 0;
uint32_t addr = COFFEE_START + (sector) * COFFEE_SECTOR_SIZE;
uint32_t end = addr + COFFEE_SECTOR_SIZE;
/* This prevents from accidental write to CIB. */
if(!(addr >= MFB_BOTTOM && end <= MFB_TOP + 1)) {
return;
}
for(; addr < end; addr += 2) {
halInternalFlashWrite(addr, &data, 1);
}
}
void
stm32w_flash_write(uint32_t address, const void *data, uint32_t length)
{
const uint32_t end = address + length;
uint32_t i;
uint32_t next_page, curr_page;
uint16_t offset;
#if STATIC_FLASH_BUFFER
static uint8_t buf[FLASH_PAGE_SIZE];
#else
uint8_t buf[FLASH_PAGE_SIZE];
#endif
for(i = address; i < end;) {
next_page = (i | (FLASH_PAGE_SIZE - 1)) + 1;
curr_page = i & ~(FLASH_PAGE_SIZE - 1);
offset = i - curr_page;
if(next_page > end) {
next_page = end;
}
/* Read a page from flash and put it into a mirror buffer. */
stm32w_flash_read(curr_page, buf, FLASH_PAGE_SIZE);
/* Update flash mirror data with new data. */
memcpy(buf + offset, data, next_page - i);
/* Erase flash page. */
ENERGEST_ON(ENERGEST_TYPE_FLASH_WRITE);
halInternalFlashErase(MFB_PAGE_ERASE, i);
/* Write modified data form mirror buffer into the flash. */
halInternalFlashWrite(curr_page, (uint16_t *) buf, FLASH_PAGE_SIZE / 2);
ENERGEST_OFF(ENERGEST_TYPE_FLASH_WRITE);
data = (uint8_t *) data + next_page - i;
i = next_page;
}
}
