Is there an exhaustive test to exercise RAM to inspect for flaky cells

[espruino-discuss3]

Posted at 2020-03-29 by Robin

Sun 2020.03.29

I have run into a bizarre troubleshooting situation, that has been narrowed down to a parsing issue, or
a potential corrupt memory situation.

See: Technique needed to notify of low memory condition during runtime

Under the assumption this is not a parsing issue, maybe a hardware one.

Is there an exhaustive test to exercise RAM to inspect for flaky cells?

I realize this gets a bit tough as Espruino will need to run, and the test program will be part of that memory. But, maybe some detail may be garnered from testing the balance of memory perhaps?

[espruino-discuss3]

Posted at 2020-03-30 by @gfwilliams

I think this is extremely unlikely, as I never never come across a microcontroller with flaky RAM.

But the most sensible way to test would be to just try on a second device. The chances of two being dodgy are unbelievably tiny.

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Posted at 2020-03-30 by Robin

Wed 2020.03.30

Rather than carry on two identical passages, the full narrative and explanation is within:

post #11 Technique needed to notify of low memory condition during runtime

Has anyone a code snippet that might prove worthwhile?