Programming cable

christer

Hello!
I have noticed that when I have loaded my application into
the propeller ram and I run the app. I can get hasardous results.
But when I unplug the programming cable (the ordinary USB) the app.
runs perfect.
What do I wrong?
Sincerely
Christer Svensson

Ken Peterson

I had a case where just the opposite was true. My application worked fine when the programmer was plugged in to the USB, but would stop working when I unplugged it. It turned out in my case that I needed the ground provided through the USB because it was a touch sensor application. My supply was floating, and without the earth ground it was giving very erratic behavior.

In your case, you may have some sort of ground loop issue. What are you using for a supply?

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christer

Thomas!

Thanks for replying.

In this case I used a 9v battery!

Christer Svensson