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Deallocate resources on SerialPIO::end #596

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earlephilhower merged 1 commits from piou into master 2022-05-25 13:08:50 +03:00
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Author SHA1 Message Date
Earle F. Philhower, III 22b559f8c0 Deallocate resources on SerialPIO::end 
Fixes #593

When SerialPIO::end is called, stop the PIO SMs and potentially
disable the IRQ handler if this is the last RX port on that PIO.
 2022-05-24 09:02:43 -07:00