In Stack Overflow I had a real quandary which I was unable to solve. I'm about at the level on the topic involved where I should be answering questions, not asking them.
This was a two processor system problem, and I had done everything I could. After asking the question on stack overflow, I discovered the next day that the other microprocessor had no code flashed in it (i.e., it was all
FFFFFFh instructions; a chip full of
So duh, what is the right thing to do now on Stack Overflow?
Should I remove that question? Five people tried to help, and one of them pointed out something good. Still, the question was totally bogus. It was hardware (well, hardware logistics).
Should I, on the other hand, answer my own question? The answer is: Make sure the code in the other microprocessor exists.
Anyway, I feel like the little boy who cried wolf, or chicken little (and the sky didn't fall).
I'm trying to build a reputation there, and I feel like that incident is opposite to my purposes of being here. Still, if others would benefit from the thing, I'm certainly willing to spend 10 minutes and write the answer. I mean, certainly, a design with two microprocessors sharing a wire between them is a common thing in embedded systems these days.
It's not stupid or bogus now. The absence of code in the other microprocessor should not affect the TX side of the UART. It should just send bytes out onto a dead wire; something that is okay (useless, but still okay). Now it's a real question, with a real problem. Thanks for the feedback here; both positive and negative.
- stack overflow question will stay there. If I get through it, I should answer it myself for others (including me) later to understand it.
- Hitting every support board (including chip maker's pro support; we're paying them, I think directly, for their chips).
It was very annoying, but I found out exactly what was wrong. There was a lot more going on than just a chip full of
NOPs. Can't believe I missed it, but anybody could make the same mistake easily, so, I'm taking the majority opinion that I read here and I will answer it myself. Thank you one and all for the valuable feedback.