stm32wl: implement powersaving for repeaters#2932
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thanks, will look into it ... for the tcxo part it really depends if the board has tcxo or not, I have both and they don't behave the same |
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Good point. Radiolib has autoprobing for the TXCO I accidentally nuked. Reverted this. |
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July 14, 2026 20:21
Enter Stop with the radio in RX; wake on the radio IRQ or RTC. RAK3172 uses Stop0 not Stop2 so the SMPS stays up and the radio on DC-DC, lower current under continuous RX.
Pass a TCXO voltage to begin() so RadioLib probes for one and falls back to the crystal if it does not start. One build then serves the crystal RAK3172 and the TCXO -T alike, where a hard-coded 0 fails init with -707.
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This is a first attempt of getting powersaving running on the STM32WL (RAK3x72) devices.
First measurements:
Setup: Nordic Power Profiler @ 3700mV -> BQ25570 -> RAK3172-T at 868MHz.
24h test on the balcony now running.