Sep. 26th, 2018

randomdreams: riding up mini slickrock (Default)
Today was another long difficult day full of obscure problems that are hard to diagnose. My chip has two power sections, that are mirror images of each other in the silicon itself, so they should behave identically. Today I discovered that if I turn the digital part of the chip on, then enable the power section, then turn on the power to the power section, one half of the chip will turn on perfectly, while the other half will start to turn on, die, and report a completely false failure as to why it died.
That's really useful to know, but it took like two hours to figure out exactly what was going on.

I ended up working about an hour past when I usually leave. As it turns out, my manager and my coworker were in another lab, battling a software problem (that I could have solved in a few minutes, but my problem is higher priority so they didn't ask me.) Anyway, they came in and saw me and we talked for a moment, and then my coworker mentioned the time, and my manager panicked because he was supposed to be home within about 30 minutes to take his wife in for an ultrasound, and he had been planning on biking home, so he asked if he could get a ride.

Did I mention I've been driving the Spitfire for the last week because my Subaru has its engine all taken apart?
So we walked out and he saw the Spitfire and started laughing, and said "can I drive it? please? just around the block?" It took him about six tries just to get it in reverse and started moving, but once he did that, it went a bit more easily. He was laughing in a terrified manner the whole time.
So I got him home, then got home at a not entirely ridiculous time, made dinner, and finally am sitting down.

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