| Communications Blockset | |
Detect errors in the input data frames according to the selected CRC method
Library
CRC Sublibrary of Error Detection and Correction
Description
The CRC-N Syndrome Detector block receives a message word and removes the checksum. The block then calculates a new checksum, and compares the received checksum with the new checksum. The CRC-N Syndrome Detector block is a simplified version of the General CRC Syndrome Detector block. With the CRC-N Syndrome Detector block, you can select the generator polynomial for the CRC algorithm from a list of commonly used polynomials, given in the CRC-N method field in the block's mask. The value of N is degree of the generator polynomial. The reference page for the CRC-N Generator block contains a list of the options for the generator polynomial.
The parameter settings for the CRC-N Syndrome Detector block should match those of the CRC-N Generator block.
You specify the initial state of the internal shift register by the Initial states parameter in block's mask. You specify the number of checksums that the block calculates for each input frame by the Checksums per frame parameter. For more detailed information, see the reference page for the General CRC Syndrome Detector block.
Dialog Box
Pair Block
See Also
General CRC Generator, General CRC Syndrome Detector
| | CRC-N Generator | Data Mapper | |
