謝謝回覆
我發現nvm.c生成之後,NVMCON2 這需要手動修改為0X55,0XAA。
NVMCON2 = 0x55;//unlockKeyLow;
NVMCON2 = 0xAA;//unlockKeyHigh;
還有須手動加入 while (NVMCON1bits.WR){}延遲才能正常使用。
這部份是我MCC沒設定好還是有BUG呢?

void EEPROM_Write(eeprom_address_t address, eeprom_data_t data)
{
//Save global interrupt enable bit value
uint8_t globalInterruptBitValue = INTCONbits.GIE;

//Access EEPROM
NVMCON1bits.NVMREGS = 1;

//Enable write operation
NVMCON1bits.WREN = 1;

//Load NVMADR with the EEPROM address
NVMADRH = (uint8_t) (address >> 8);
NVMADRL = (uint8_t) address;

//Load NVMDAT with the desired value
NVMDATL = data;

//Disable global interrupt
INTCONbits.GIE = 0;

//Perform the unlock sequence
NVMCON2 = 0x55//unlockKeyLow;
NVMCON2 = 0xAA//unlockKeyHigh;
NVMCON1bits.WR = 1;
while (NVMCON1bits.WR)
{
}
//Restore global interrupt enable bit value
INTCONbits.GIE = globalInterruptBitValue;

//Disable write operation
NVMCON1bits.WREN = 0;
}

a780917a 你好，
可以參考 PIC16F18144 datasheet 的 EEPROM 、 Data Flash Memory 、NVM和 NVMREG Access 相關章節來了解如何訪問 EEPROM。









關於使用 MCC 產生的函式來訪問 EEPROM ，
可以參考 datasheet 的 NVMREG Access 的 EEPROM 欄位來了解可指定的地址範圍:

Attach file:

---

  Data EEPROM Memory.jpg (144.24 KB)


  Data Flash Memory (DFM).jpg (160.08 KB)


  NVMREG Read Operation.jpg (101.20 KB)


  NVMREG Write to DFM.jpg (117.04 KB)


  EEPROM.jpg (70.06 KB)

PIC16F18144 規格書寫有Data EEPROM (bytes):256

在MCC選取使用時Memory 裡的EEPROM似乎只能與I2C一起用?

設定選項裡出現
Hardware Settings
Device
Density
Page Write Buffer

但我只想單純使用EEPROM 該怎麼設定呢?

選擇ON-chip : NVM後
eeprom.c裡的 eeprom_address_t 與EEPROM_Write(), EEPROM_Read()
沒有被自動定義,該怎麼修改呢?
bool EEPROM_ByteWrite(uint32_t address, uint8_t *data)
{
uint8_t getData = *data;
eeprom_address_t writeAddress = (eeprom_address_t) (address);
NVM_UnlockKeySet(UNLOCK_KEY);
EEPROM_Write(writeAddress, getData);
NVM_UnlockKeyClear();
while (NVM_IsBusy());
if (NVM_StatusGet() == NVM_OK)
{
return true;
}
else
{
NVM_StatusClear();
return false;
}
}
bool EEPROM_ByteRead(uint32_t address, uint8_t *data)
{
eeprom_address_t readAddress = (eeprom_address_t) (address);
*data = EEPROM_Read(readAddress);
return true;
}