Hi there,
We have populated the TSC2003 into one of our designs, specifically as a touch screen controller. Please see our schematic below:
However, using an oscilloscope, nothing is being measured on the X+, Y+, X- or Y- pins when using the touch screen.
Do anyone have a suggestion of what might be wrong here? Is the design correct?
My current thinking is that the command bits need to be sent to the device to select the differential pins as input, but I don't see anything in the datasheet to confirm that.
Any feedback would be greatly appreciated.
Thank you in advance
Johan Hattingh