Noise on K line?

Hello,

I'm trying to make my own scanner with an AVR and my own version of
Jeff's interfase. I can stablish a communication to a VW GOL Diesel
Pump ECU.

If I ask the ECU for the RPM data with the Engine ON, in a ramdom
moment the program halts. I can halt when the RPM reach an elevated
number or when just started.

I think is a kind of noise but don't know if it's on the K Line or
in the Supply. All the components are on a protoboard, and I know
this is not good for noise reduction. Can I filter the K Line with a
0.1uF capacitor? or something like that.

Thanks
Ezequiel

 
Received on Mon Sep 29 17:50:45 2003