Tool/software: Linux
Hi team,
My customer used ADS7845 for five wire touch screen.
Below is SCH.
1. R73 and C101 has remove and AUXIN connect to GND,
2 .R357-R361 has remove. R66,R68,R69,R71,R349 = 0R。
Linux driver :
We run the system and find we touch the screen like below picture showing the direction. And the X Y data change small, like ADS7845 didn't work.
Do you know why? Thanks!