Yes, I don't like the thought of giving up on the Campbell Combo Board but if it doesn't work...The box fits that board which means going all the way back to coming up with another box for a different breakout board, but if it needs to be..
Maybe I've got a bad one. I wrote to Campbell a couple of times, maybe he will respond with some remedy - try another board...?
I put an oscilloscope on the limit switch inputs to watch for some sort of glitch - never saw one that would have triggered a reset. At the same time the outputs were watched with another channel - they seem to be all over the place with no apparent frequency or amplitude so when some of this noise varies far enough - reset. There has got to be a remedy for this....maybe a leaky capacitor or one of these chips with a bad gate or something.
These combo boards are assembled by flow soldering but I see puddles of flux on some traces. I'm not saying that this was repaired before I got it but why would there be additional soldered joints to a circuit board that had been flow soldered and then totally cleaned? The soldering flux appears to be around the voltage regulators and the main fusible link. Have I been the recipient of the tailings of a once thriving business? Bob Campbell seems OK, but money is money if things are not going well.
Off subject... But anyhow, we'll get to some other tasks while this is sorted out. The LPT2 port in the machine computer seems to be outing where it should be inning.
Thanks,
WAC