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TWI power consumptions may be high #33

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natersoz opened this issue Apr 8, 2019 · 0 comments

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bug enhancement

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natersoz commented Apr 8, 2019 •

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See this link:
https://devzone.nordicsemi.com/f/nordic-q-a/15908/nrf52-twi-excess-current-consumption/60684#60684

Errata 89 tells that this is an anomaly inside the chip. And the work around is given.
Just add below code when you want to disable TWI

For TWI0 for number 89 anomaly on nRF52

*(uint32_t *)(0x40003000 + 0xFFC ) = 0;
*(uint32_t *)(0x40003000 + 0xFFC ) = 1;

For TWI1 for number 89 anomaly on nRF52

*(uint32_t *)(0x40004000 + 0xFFC ) = 0;
*(uint32_t *)(0x40004000 + 0xFFC ) = 1;

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natersoz added bug enhancement labels

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