Bluetooth Issue

[PJM38]

Hello,

My configuration:
Porsche 944 2.5l NA, MegasquirtII DualSpark, stock sensor (130-0 wheel and 1 tooth crank wheel), Second Input circuit LM1815 based, second output, Dual Coil wasted spark Ignition, V2.89 code. That work fine since few months.

My Problem : I try to use a wireless Bluetooth connexion with a BT serial adapter (BT0240). I’ve connect together pin 7 & 8 on DB 9 connector (not pin 1,4 and 6, it doesn’t works) and I can communicate using MegaTune (same wiring as : http://westfieldmx5.devocht.com/index.p ... 22&page=52). I’ve minor issue ie frequent 1 or 2 second lost of connection, but the main issue is random Megasquirt Reset only when engine is running.

When the engine is off, there is no reset. I tested it during 1 hour, with data logging without any problem. When Engine is on, reset could happen after few minutes.
I’ve already try to increase ‘interval time’ on MT communication menu, I’ve replace the DB9 pin 9 power supply by an external supply, but I’ve no fixed the problem.

Are there some other trials to troubleshoot this problem?

Thanks In advance for your help.

Patrick, Grenoble-FRANCE