新手求助如何去实现I2C通信单个字节读取数据呢

注意写数据的时候，加延时，单个字节读取
#if 1

printf("rn***************I2C Example*******************************rn");
printf("WriteBufferrn");
for(i=0; i<256; i++)
{
        WriteBuffer=i;    /* WriteBuffer init */
        printf("0x%02X  ",WriteBuffer);
}


/* wrinte date to EEPROM */
for(i=0;i {
        HAL_I2C_Mem_Write(&hi2c2, ADDR_24LCxx_Write, i, I2C_MEMADD_SIZE_8BIT,&WriteBuffer,1,0xff);//使用I2C块读，出错。因此采用此种方式，逐个单字节写入
        HAL_Delay(5);//此处延时必加，与AT24C02写时序有关
}
printf("rn EEPROM 24C02 Write Test OK rn");


HAL_I2C_Mem_Read(&hi2c2, ADDR_24LCxx_Read, 0, I2C_MEMADD_SIZE_8BIT,ReadBuffer,BufferSize,0xff);


for(i=0; i<256; i++)
printf("0x%02X  ",ReadBuffer);


if(memcmp(WriteBuffer,ReadBuffer,BufferSize) == 0 ) /* check date */
printf("rn EEPROM 24C02 Read Test OKrn");
else
printf("rn EEPROM 24C02 Read Test Falsern");
#endif

注意写数据的时候，加延时，单个字节读取
#if 1

printf("rn***************I2C Example*******************************rn");
printf("WriteBufferrn");
for(i=0; i<256; i++)
{
        WriteBuffer=i;    /* WriteBuffer init */
        printf("0x%02X  ",WriteBuffer);
}


/* wrinte date to EEPROM */
for(i=0;i {
        HAL_I2C_Mem_Write(&hi2c2, ADDR_24LCxx_Write, i, I2C_MEMADD_SIZE_8BIT,&WriteBuffer,1,0xff);//使用I2C块读，出错。因此采用此种方式，逐个单字节写入
        HAL_Delay(5);//此处延时必加，与AT24C02写时序有关
}
printf("rn EEPROM 24C02 Write Test OK rn");


HAL_I2C_Mem_Read(&hi2c2, ADDR_24LCxx_Read, 0, I2C_MEMADD_SIZE_8BIT,ReadBuffer,BufferSize,0xff);


for(i=0; i<256; i++)
printf("0x%02X  ",ReadBuffer);


if(memcmp(WriteBuffer,ReadBuffer,BufferSize) == 0 ) /* check date */
printf("rn EEPROM 24C02 Read Test OKrn");
else
printf("rn EEPROM 24C02 Read Test Falsern");
#endif

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