Lost all comunication with the microsquirt

[micke_lc4]

Have hade good comunication with the microsquirt and was doing some cranking tests to try to solve som problem with rpm spikes, then all comunication was lost and couldnt reconnect:(
Have tryed it on 2 computers now with no luck.

Can still hear the injector klicking when crankin, so parts of the box seems to be alive.
Could i have damaged the comunication in some way by just cranking?

[65looter]

Have you gone through http://www.megamanual.com/connect.htm ?

[micke_lc4]

Have you gone through http://www.megamanual.com/connect.htm ?

Haven´t tested all that yet, but im sure that i still have the same settigs on the computer as have worked fine before. I have tryed de bootloader, but cant connect to reload the code.

[Matt Cramer]

Try closing all programs, running the Port Check program, and post a screen shot. It may have some clues about what happened.

[micke_lc4]

attaches printscreen of the portcheck.
Com1 is my serial port.

[Matt Cramer]

Ok, a complete loss of communication. I would check the serial cable for continuity first; it could just be the cable is broken if you aren't seeing any other problems.

[micke_lc4]

Ok, a complete loss of communication. I would check the serial cable for continuity first; it could just be the cable is broken if you aren't seeing any other problems.

Have checked the cable and its okay, also checked the voltage and its 11,6 and Vref 4,96.

[micke_lc4]

Any other tips what I can check or test?

[Bruce Bowling]

Email me offline at bbowling@earthlink.net .. I will help you with this to see if we can figure it out.

It sounds like a port issue, or perhaps the harness assembly. The key info here (thanks for including this in the post) is that the box still injects while cranking, just no comms. This tells me that the microsquirt is working and not a stuck bootloader issue that occurred with some v1 boards.

Well get you going...

- Bruce