Question

stm8s的EEPROM读写程序如何编写，需要哪些配置步骤

Answer 1

#define EEPMASS1 0xAE //密码钥匙1
#define EEPMASS2 0x56 //密码钥匙2
#define EEPADDR 0x4000 //eep地址起始

void eeprom_read(U16 u16Addr, U8 *pdatas, U8 len)
{
U8 *eep=(U8 *)u16Addr;
U8 j;

for(j=0; j<len; j++)
{
pdatas[j]=eep[j];
}
}

void eep_word_write(U16 u16Addr, U8 *pdatas, U8 len)
{
U8 *eep=(U8*)u16Addr;
U8 j;

FLASH_DUKR=EEPMASS1; //锁1密钥
FLASH_DUKR=EEPMASS2; //锁2密钥
while(!(FLASH_IAPSR&0x08)); //等待解密就绪

DISABLE_MAC_INTERRUPTS();
FLASH_CR2 |= 0x40; //
FLASH_NCR2 &= ~0x40; //设置字编程
for(j=0; j<len; j++)
{
eep[j] = pdatas[j];
}

while(!(FLASH_IAPSR&0x04));
FLASH_IAPSR &=0xf7; // off the eeprom program
ENABLE_MAC_INTERRUPTS();
}

追问

^^^