Hello Draper, I can't see why larger touch overlay would slow the response down - after all it's just a pair of ADC signals going into Samtech IC. When using DK-S7, the touch is connected to the SCI peripheral. You'll need to make sure that the pins for it are configured as n-channel open drain. I also highly recommend switching to the fast-mode for I2C transmission. There's an unnecessary delay of 10-20ms hard-coded in the driver (which should be fixed in the near future), however you should see the same response regardless of the screen size. Regards
↧