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Adventures in Microcontroller Circuit Debugging
How do you go about troubleshooting a misbehaving microcontroller circuit? A few months ago I manufactured a new batch of Floppy Emu disk emulators. A number of them failed QA at the factory, with a set of symptoms that I’d never seen before in all my years of developing this device: - Most of them simply wouldn’t boot up at all, despite verifying that power was good and the mcu was correctly programmed.
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