[参考译文] TPS2HCS10-Q1：CRC 实现详细信息

static uint8_t crcGetResult(uint8_t* dataBuffer, uint8_t len)
{
    uint8_t crc_start = 0x0F;
    uint8_t crc_polynomial = 0x03;
    uint8_t crc_result = crc_start;
    uint8_t bitnum = 0;
    uint8_t bytenum = 0; 

    for(bytenum = 0; bytenum < len; bytenum++)
    {
        for(bitnum = 0; bitnum < 8; bitnum++)
        {
            if((((dataBuffer[bytenum] >> (7-bitnum)) & 0x01) ^ 
                   ((crc_result & 0x08) >> 3)) > 0)
            {
                crc_result = crc_polynomial ^ ((crc_result << 1) & 0x0F);
            }
            else
            {
                crc_result = (crc_result << 1) & 0x0F;
            }
        }
    }

    for(bitnum = 0; bitnum < 4; bitnum++)
    {
        if(((crc_result & 0x08) >> 3) > 0)
        {
            crc_result = crc_polynomial ^ ((crc_result << 1) & 0x0F);
        }
        else
        {
            crc_result = (crc_result << 1) & 0x0F;
        }
    }
  
    return (crc_result);
}