GLCD and TouchScreen trouble


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  1. #16
    Join Date
    May 2006
    Location
    Del Rio, TX, USA
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    343


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    More Info after some playing:
    - Static sheild products had no discernable effect. Except that the "foil" loking bag (I tried a plastic product as well) actually caused the same phenomona just on it's own on e time, but I could not repeat it.

    - Caps and Resistors, both and seperately, did not help, and caused problems with the TS Scanning. Decoupling Caps don't help either.

    - I slowed the frequency of the scans, but no change. Increase the ADC time. No change.

    I did have succus with a "frame" made of 18gauge bare copper wire between the GLCD and the TS. But, If I only put the wire on two or three sides, it wouldn't consistantly solve the problem. I might try to find some copper sheet and cut out a frame to see what that does. I may also try connecting it to GND.

    I think that leaves working with the Vee pin, Wait pin, and driving with a lower voltage.

    SteveB
    Last edited by SteveB; - 13th June 2007 at 04:42.

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