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在数据通信中,由于诸多因素的影响,设备之间的通信数据常常会发生一些无法预测的错误.为确保高效而无差错地传输数据,降低错误所带来的影响,必须对数据进行检错,即差错控制.一般在通信时采用数据校验的办法,在诸多检错手段中,CRC是最著名的一种.利用51系列单片机可以实现CRC.
In data communications, unpredictable errors often occur in communication data between devices due to a number of factors. To ensure efficient and error-free data transfer and reduce the effects of errors, data must be checked , That is, error control.Generally used in the communication data validation method, in many error detection means, CRC is the most famous one .Use of 51 series of single-chip can achieve CRC.