final error 0x17 data error cyclic redundancy check

Overview of usageĬyclic redundancy check It is a calculation method used to check the accuracy of digital transmission on the communication link （ Establishing the agreed relationship between data bits and check bits through some mathematical operation ）. There are many ways of testing, Common are Parity check 、 Internet verification and Cyclic redundancy check etc. In order to improve the accuracy of data received by the receiver as much as possible, Before the receiver receives the data, error detection of the data is needed, When and only when the detection result is correct, the receiver can receive the data.

In the process of data transmission, No matter how perfect the design of the transmission system, There will always be mistakes, This kind of error may cause one or more frames transmitted on the link to be destroyed ( Bit error ,0 Turn into 1, perhaps 1 Turn into 0), So the receiver receives the wrong data. Its usage can be explained as shown in the figure below ： It is mainly used to detect or verify the possible errors after data transmission or saving. The most commonly used error check code in the field of data communication, The length of information field and verification field can be specified arbitrarily, But it requires both sides of the communication to define CRC The standards are the same. ĬRC（Cyclic Redundancy Checksum） It's an error correction technique, Represents cyclic redundancy checksum. Recent work CRC check, By the way, organize this article to study with you.

Final error 0x17 data error cyclic redundancy check