Hi, I am sending NMEA
strings with uncalculated checksums to OpenCPN
and they are accepted regardless of the "Control Checksum" setting in open CPN
It seems to me the "control checksum" is not operational as OpenCPN
should normally filter out those packets.
Does that make sense?
My setup is:
Davis anemometer connected to an arduino that generates the nmea
strings, then connected to a win laptop
through a USB based virtual serial
Here are two example strings with bad CRCs that are successfully reflected on the Open CPN
Any comments appreciated.