ADC_DelSig_v3_09 and AmuxHw_v1_50 | Cypress Semiconductor
ADC_DelSig_v3_09 and AmuxHw_v1_50
Hi there !!!!!
I woluld need again your help!
I am triyng to read on display module four FSR ( force sensing resistor) and they look lik NTC thermistor in relation to resistance versus physic exitation. In this case exitation is a finger tip touch.
I have multiplexed them to a ADC_DelSig_v3_09 and I have used harward multiplexer.
I have atacched a bunddled zip with the proyect.
The TIA has an output of vdd/2 when any FSR is pressed, and vout can reach 0 V depending on the strenght of the touch can be.
So the input range of my ADC is 3.3 V/2 to 0v.
The result is the four redout are 0x00008104 always , which it seems to be correct when any FSR is pressed.
But it does not work when I press any of the FSR.
I would apreciate any help
Thank you very much.