c_cpp 获得CRC

Posted 2021-05-14

unsigned char getCRC(unsigned char * data, unsigned char dataLength)
{
    unsigned char i;
    unsigned char crc = 0;

    for (i = 0; i < dataLength; i++)
    {
        crc += *data++;
    }
    crc = ~(crc)+1;
    return crc;
}