I have an Input that is not behaving as I’ expect it should.
The use case is that a pin is allocated as an Input with the internal PULLUP, in my case it’s GPIO7, we have an external contact to GND to trigger an interrupt on a falling edge. We also have an external 4K7 pull up resistor on this I/P to make sure the ‘going high’ transitions are faster than we would get with the typical internal PU resistance.
When I measure this GPIO it sits at 1.62V , this suggests there is an internal PULL Down and about the same value as 4K7 that is effectively splitting the 3.3V.
I have checked the PSoC 4 data sheets and it has a whopping 8 pin drive settings. How do I access these ‘other’ modes so I can test this further?