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If you find yourself building an embedded system and you have an option to not use parallelism, don’t use parallelism.

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Hardware or software?

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software. Got bit by multiple tasks accessing the same peripheral.

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So what would you say is the root of the problem? Concurrency in embedded devices is likely hard to avoid.

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I started moving away from tasks mainly for transparency reasons. Using polled state machines exclusively.

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I prefer event loops, or something similar.

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Same here. A static #Erlang. Someone should really write that :) A stripped down version, on a malloc-less libc.

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As a leaf node, tied into the mothership.