求助 断电信息保存问题

冬天的野狼

请问，没有eerom。想用单片机内部Flash来保存信息，断电后保存的信息不消失，可行不？要是有列程参考一下最好了

操作系统

STM8 FLASH够大,够快.你的要求可以实现.库函数里面有关EEPROM,FLASH的操作.  顺便说一下,STM8 有 EEPROM

loudianxin

贴一个STM8S内部EEPROM读写的函数，可参考
void SysEepromWriteOnebyte(uint32_t Address, uint8_t Data)
{
        uint8_t flagstatus = 0x00;
        uint32_t timeout = ((uint32_t)0xFFFFF);
        FLASH->CR1 &= (uint8_t)(~0x01);
        FLASH->CR1 |= (uint8_t)0x00;
        //FLASH_Unlock(FLASH_MEMTYPE_DATA);
        FLASH->DUKR = 0xAE; // Warning: keys are reversed on data memory !!!
        FLASH->DUKR = 0x56;
        //FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
        /*while ((flagstatus == 0x00) && (timeout != 0x00))
        {
                flagstatus = (uint8_t)(FLASH->IAPSR & (FLASH_IAPSR_EOP | FLASH_IAPSR_WR_PG_DIS));
                timeout--;
        }*/
        //FLASH_ProgramByte(Address, Data);
        *(PointerAttr uint8_t*) (uint16_t)Address = Data;
        //FLASH_WaitForLastOperation(FLASH_MEMTYPE_DATA);
        timeout = ((uint32_t)0xFFFFF);
        while ((flagstatus == 0x00) && (timeout != 0x00))
        {
                flagstatus = (uint8_t)(FLASH->IAPSR & (FLASH_IAPSR_EOP | FLASH_IAPSR_WR_PG_DIS));
                timeout--;
        }
        //FLASH_Lock(FLASH_MEMTYPE_DATA);
        // Lock memory
        FLASH->IAPSR &= (uint8_t)0xF7;
}

u8 SysEepromReadOnebyte(uint32_t Address)
{
  return (*(PointerAttr uint8_t *) (uint16_t)Address);
  //return FLASH_ReadByte(Address);
}