The Marine Communications Tool is a NMEA0183 and NMEA2000 testing tool.
Below are the features.
RS422 terminal view and recording of received data to removable micro SD card.
RS422 Header view This mode displays the sentence header and the time between messages.
RS422 Playback. This mode displays plays back stored files to the display and to the RD422 serial output.
CAN Bus NMEA2000 Data View - PGN, Data, Priority, Source, Destination, Frame Type.
CAN Bus NMEA2000 PGN Description view
CAN Bus NMEA2000 PGN Header View This mode displays the PGN and the time between PGNs.
*The RS422 mode will also display RS232 from most devices.
It is based on modified off the shelf hardware with the software adding the secret sauce.
I write the software so feature requests are encouraged.
Should you have any questions please feel free to email.