TinyFPGA BX Pin 18 and 20 not working


#1

While in bootloader mode my TinyFPGA BX’s general purpose pins have a voltage except on pins 18 and 20. After programing and holding all the pins high in code, pins 18 and 20 still do not have a voltage. Is there something special about these pins, or is it likely they are zapped out? I am using the pin configuration from the provided APIO template.


#2

Hello,
There is nothing making these pins special and the APIO template also looks fine

From looking at the layout… the pins are next to each other and there is a trace in between. Perhaps something went wrong during soldering and looking at that area might help understand the problem.