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One’s Complement Fletcher-16 Checksum Calculation
Help > Appendix > One’s Complement Fletcher-16 Checksum Calculation

The following examples show the implementation of one’s complement Fletcher-16 checksum used to check code uploaded by the LoadCode command.

 

Please note that the one’s complement adding implementation does not use a well-known “modulo 255” algorithm that requires more code but it makes use of “carry technique” that unlikely does not avoid one’s complement negative zero value 0xFF.