Error check using CRC Peripheral | STM32F4 | CRC | CMSIS
Cyclic Redundancy Check Cyclic Redundancy Check, or CRC in short is an error-detecting code used to check data integrity in digital data. It involves executing the Modulo 2 Arithmetic division of a Message polynomial with a Generator polynomial and then appending the remainder of the division to the tail of the Message polynomial to get a complete Data frame for transmission. This is the process carried out on the Transmitter side. Then, on the Receiver side, another Modulo 2 Arithmetic Division is carried out with the same Generator polynomial to check for a 'zero' remainder, and if not found, an error has occurred. This is the basic layout of Cyclic Redundancy Check. If you want to get a better understanding of the process, check out Jacob Schrum's video on CRC or Ben Eater's explanation on CRC working . If you are enthusiastic about diving deep into Checksums and CRC, check out the blogs maintained by Philip Koopman at Carnegie Mellon University . He has a lot to sh...