IO-Port availibilty depends on boards, using "wrong ports" result in reset

[espruino-discuss3]

Posted at 2021-01-21 by JumJum

Depending on boards we use some ports cause a shutdown after setting mode for pin, like D16.mode("output").
Testing was done to check speed of different solutions for LED-Matrix(32x64).
Started with a board from Watterott, everything worked fine.
Switching to another board reset with same configuration.
Problem could be drilled down to usage of IO16 and IO17.
D16.mode("output") and I've got a reset.
Most boards don't have pins for IO16 and IO17, so be careful, not to use them accidently

[espruino-discuss3]

Posted at 2021-01-22 by @gfwilliams

Great - thanks for the update on this - that's a bit tricky.

But if you don't reference D16/D17 in your code you don't get any resets?

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Posted at 2021-01-22 by JumJum

Reset only happens, if mode for port is set.
I'm searching a better solution for jshIsPinValid, but nothing found yet.