TinyFPGA BX Pin 18 and 20 not working


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.


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.