- void DeeWr(uint16_t addr, uint8_t *dat, uint8_t len)
- {
- uint8_t xdata *ptr;
- uint8_t i;
- uint8_t tmp;
-
- ptr = (uint8_t*)addr; //给EEPROM赋值
- for(i=0;i<len;i++)
- {
- ptr[i] = dat[i]; //写eeprom缓存
- }
- tmp = IE0;
- EA = 0; //限时访问不能被中断打扰，操作之前需要保存中断允许位，并关断总中断。
- TA = 0xAA; //Open TA
- TA = 0x55;
- EECON |= 0x01; //Set EECON flag
- IE0 = tmp;
- while(EECON&0x01); //Wait dee write finished
- }
- void DeeRd(uint16_t addr, uint8_t *dat, uint8_t len)
- {
- uint8_t xdata *ptr;
- uint8_t i;
-
- ptr = (uint8_t*)addr; //给指针变量赋值
- for(i=0; i<len;i++)
- {
- dat[i] = ptr[i]; //获取eeprom数值
- }
- }
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