以上介绍的三种求CRC的程序，按位求法速度较慢，但占用最小的内存空间；按字节查表求CRC的方法速度较快，但占用较大的内存；按半字节查表求CRC的方法是前两者的均衡，即不会占用太多的内存，同时速度又不至于太慢，比较适合8位小内存的单片机的应用场合。以上所给的C程序可以根据各微处理器编译器的特点作相应的改变，比如把CRC余式表放到程序存储区内等。-Introduced for more than three CRC procedures bitwise slower method, but the memory space occupied by the smallest　by byte CRC look-up table method for faster, but occupy a larger memory　by a half-byte look-up table CRC seek ways to balance the first two projects, namely, not taking up too much memory, at the same time does not slow the pace more suitable for 8-bit single-chip small-memory applications. The above procedure can be given by C compiler based on the characteristics of the microprocessor to make the corresponding changes, such as the CRC-style table than on the storage area, such as procedures.