Hello, I have v1.0 controllers and I'm trying to reconfigure them to work with marlin. Removing the resistor to enable SPI is easy. The teensy, tiny jumper pads for cfg4/cfg5 is an entirely different story. I have one working, but the second is not. It won't try to home. I can move the axis manually, but it seems like it's not sensing current and therefore won't try to find home.This is switch-less homing, btw.
If I swap the controllers the problem moves. So ... there are three variables (three jumpers). Is there a way to narrow down the problem, like with gcodes? I'm crazy new to this. I'm guessing it's one of the soldered jumpers because they're insanely small and hard to see with a loupe, never mind solder.