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Comment On control systems it's a must! (Score 1) 239

I write a lot of embedded systems code, and everyone wonders why I check a timer configuration register that was already set at boot, or do an internal sanity check to verify everything is as I intended it to be before loading the timer (turning the output on) and then double check that the timer expired when I thought it should.

Sooner or later someone reuses the code, ignores the comments and takes those checks out. Then you get the "randomly quits working until I reboot" hell that drives warranty and service crazy!

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