Hello,
I recently bought a number of K8055 interface boards (6) with the intention of using them in various interface applications. The digital inputs and outputs work perfectly but I’m having trouble with the analogue inputs. These give a very erratic reading making them unusable, with a steady input voltage the reading jumps around by anything up to 25%. This is also the case when using the on-board test pots and the K8055 Demo software.
Any guidance on this?
Thanks
Don Cook.
[quote]reading jumps around by anything up to 25%[/quote]This is very strange. Normally the variation is +/-1 (max). How big variation you get if the test pot is about in the middle position?
I made a simple Excel macro and recorded following results:
[ul]125
125
125
125
126
126
126
125
126
126
126
125
125
126
126
125
125
126
126[/ul]
The sampling interval was 0.1 seconds.
Oops,
Seems to be a PC related problem. I plugged one into a different PC and everything works fine.
Cheers.
