I am working on a handler for IoT data from an electricity meter which communicates via TTL serial at 115200 baud. It only sends data in packets of less than 1 kbytes every 5-10 seconds.
In order to validate the data I need to check the CRC16 checksum at the end and here is where I don't find a good way to do it... The application will run on Linux so I checked for operating support but found only sksum, which apparently does not do CRC16. Is there some package or code available somewhere which can calculate the CRC16 value over a byte array of some 1000 bytes? In a description of the protocol after showing the data structure it adds this: crc16 = libscrc.ibm(example_data).to_bytes(2, 'big').hex() >> '7945' Googling libscrc brings me to Python code on GitHub, which I am not really able to use, never programmed Python... https://github.com/hex-in/libscrc Anyone able to help with FPC implementation? -- Bo Berglund Developer in Sweden _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org https://lists.freepascal.org/cgi-bin/mailman/listinfo/fpc-pascal
