PIC18F27K40的i2c问题

亲爱的，我有一个问题来解决I2C的问题。我使用的是带有PIC18F27 K40的MCC。PIC有和ErrATA，但我不认为与I2C有关。当我试图在EE2PROM上用I2C，USPURNC2C1MAStiON编写时，CHII2CY-FLAG总是在消息待定。有人知道这是为什么吗？谢谢！



      以下为原文

    Dear all,
I'm having a problem to figure out a problem with i2c. I'm using MCC with pic 18F27K40. The PIC has and errata but I don't think is related with I2C.

When I try to talk with a EEPROM over i2c, using I2C1_MasterWrite, che I2C_Flag is always in message pending.
static uint16_t address = 0x90;
        static uint8_t length = 1;
        static uint8_t command = 0, data = 0;
        static I2C1_MESSAGE_STATUS I2C_Wflag, I2C_Rflag;
        /* Start a I2C Write operation. */
        I2C1_MasterWrite( &command, length,address, &I2C_Wflag);
        if (I2C_Wflag == I2C1_MESSAGE_FAIL)
            while (1) // Something wrong
                LED=1;
        while (I2C_Wflag != I2C1_MESSAGE_COMPLETE);
        LED=0;
        __delay_ms(100);
        LED=1;
        __delay_ms(100);

Someone know why this is happening?

Thanks a lot!