I also changed the port module so it doesn't needlessly update the data direction register over SPI if it's being told to set the same value it had before.
I'm not completely done with the electrical test because it only counts errors right now. So I need to implement a framework to determine which pins are shorted rather than just counting them.
It does add some complexity to the code. I may be going through a chain of calls just to turn the CS pin on, for instance. Hopefully I'm not going too crazy with this.
Anyway, this means that I can control the ports from a SIMM electrical test routine using the same types of functions that the actual programming controlling code would use, without having to duplicate a bunch of port definitions and bit manipulation. I made sure to add all the functions I can think of needing to the ports module. We'll see if I got them all!
