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Turn of 3.3v rail on RAK-4631 on shutdown

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This commit is contained in:
Ben Meadors 2023-01-10 07:36:19 -06:00
parent 3985008e06
commit 713f7d5996
2 changed files with 4 additions and 1 deletions
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2
src/main.cpp
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@ -239,7 +239,7 @@ void setup()
#ifdef RAK4630 #ifdef RAK4630
// We need to enable 3.3V periphery in order to scan it // We need to enable 3.3V periphery in order to scan it
pinMode(PIN_3V3_EN, OUTPUT); pinMode(PIN_3V3_EN, OUTPUT);
digitalWrite(PIN_3V3_EN, 1); digitalWrite(PIN_3V3_EN, HIGH);
#endif #endif
// Currently only the tbeam has a PMU // Currently only the tbeam has a PMU

3
src/platform/nrf52/main-nrf52.cpp
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@ -172,6 +172,9 @@ void cpuDeepSleep(uint64_t msecToWake)
Serial1.end(); Serial1.end();
#endif #endif
setBluetoothEnable(false); setBluetoothEnable(false);
#ifdef RAK4630
digitalWrite(PIN_3V3_EN, LOW);
#endif
// FIXME, use system off mode with ram retention for key state? // FIXME, use system off mode with ram retention for key state?
// FIXME, use non-init RAM per // FIXME, use non-init RAM per
// https://devzone.nordicsemi.com/f/nordic-q-a/48919/ram-retention-settings-with-softdevice-enabled // https://devzone.nordicsemi.com/f/nordic-q-a/48919/ram-retention-settings-with-softdevice-enabled