8000 nrf: implement brownout detection if possible · Issue #1034 · adafruit/circuitpython · GitHub
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nrf: implement brownout detection if possible #1034
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nrf: implement brownout detection if possible#1034
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tannewt
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@dhalbert

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@dhalbert
dhalbert
opened on Jul 17, 2018

atmel-samd uses ~2.7v as brownout limit. This is the lower operating limit for a number of external SPI flash chips.

See ports/atmel-samd/supervisor/port.c, which also includes logic for reporting previous brownout to startup logic so it will go into safe mode.

Also CIRCUITPY_CANARY_WORD is #if 0'd out here and should be enabled.

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