Today I installed an Actisense NGW-1-ISO on board my parents boat
, so the AP and OCPN can talk.
So I connected the NGW-1 to the listener and talker on the miniplex-lite and the other side to the STng backbone.
After some fiddling with NMEA
sentences being echo'ed to the miniplex-lite talker ($GPGLL,$GPRMC,$ECAPB,$ECXTE) I got SOG,TIME,POS and COG visible on the p70 display of the AP, seems all to work well.
Now when I select a route
and activate "track mode" it it successfully "locks on" and starts to follow in track mode. But then SOG disappears from the p70 briefly or a little longer causing the p70 to complain about no speed data input. Hence the AP stops following the track. Also the AP seems to be sluggish in finding the track.
-Raymarine p70, EV-1, ACU400
-Nav PC (win7)with OCPN -> USB connected multiplexer with virtual com port
-Furuno GP33 (fake ONWA) -> NMEA0183 to multiplexer
-Oceansat Class B AIS -> NMEA0183 to multiplexer
-Actisense NMEA2000-NMEA0183 bridge connected to STng and NMEA0183 multiplexer
sends at 57600 baud the sentences to the multiplexer which sends it @ 4800 to the NGW-1. But when there is no flow control on the port sentences gets lost
sometimes. 128 bytes is not a lot of buffer on the multiplexer.
has no flow control settings on it's com port but the Windows COM port settings do have Xon/Xoff and Hardware
, I'll try if that helps.
Other solution: Bypass the NMEA
talker from Multiplexer with USB serial
, but I'd like to avoid that.
Next week I'll test if this makes the difference, but if anybody has an idea I'm open for more info!