AnsweredAssumed Answered

Looking for CRC16 app note for Modbus CRC

Question asked by Bob Stevens on Jun 9, 2015
Latest reply on Apr 4, 2017 by Nikolaus Bauly

I'm using a KE96 processor and I'm trying to use the CRC module to calculate the CRC for a Modbus string.

I use a seed value of 0xfff and a polynomial of 0xa001, but I can't seem to get the right CRC value.

I haven't tried all of the combinations of transposing bit and such yet.

Does anyone know of an app note describing how to generate crc16 for Modbus comms?