I have built my own Arduino Due Circuit board. I am having issues with it randomly locking up. I have researched the libraries and have ruled out any issues with them such as the Wire library. I am wondering could an issue with the power supply cause a brown-out that would lock it up. The only way to recover is to unplug it and plug it back in. It can run for 1 hour 1 week or months before it locks up. Does anybody have any idea what could cause this issue and how I can resolve it? Could the fuse or lock bits being set wrong cause this type of issue?

  • What is your BOD (brown Out Detect) fuse set to? – Wendall May 6 '19 at 20:54
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    Welcome :-) "I have built my own Arduino Due Circuit board" So what did you change, compared to the original? Any component changes (type / value / not populated etc.)? Any layout changes or did you exactly copy the PCB layout too? Please edit your question to add those details. Also add details of any testing & analysis you've done so far, to avoid anyone wasting time suggesting things you've already done. Is your hypothesis of a brown-out based on any specific testing or analysis, or just a guess? Finally, please add photos of your board into the question (ctrl+G in the editor). Thanks. – SamGibson May 6 '19 at 21:10
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    Further questions: (a) To help confirm that this is a hardware problem, and not a problem with your code, have you had your custom board hang, while running only the most simple "blink LED" code (and if so, can you provide a copy of that code)? (b) Have you been able to change the frequency of the hangs (i.e. make them less frequent or more frequent) by doing anything, during your troubleshooting so far? (c) Also, based on your troubleshooting so far, have you been able to get confidence in a particular power source, for your subsequent tests? Thanks. – SamGibson May 6 '19 at 22:17

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