RadioLibWrapper::setTxPower() called setOutputPower() and nothing else. On
LR2021 that writes the PA config and TxParams, which are standby-only commands,
and it never re-arms the receiver.
This only affects LR2021 boards. recvRaw() has:
#if defined(USE_LR2021)
state = STATE_RX; // LR2021 stays in Rx after readData
#else
state = STATE_IDLE; // need another startReceive()
#endif
so on SX126x the next recvRaw() re-arms Rx anyway and the write is harmless,
while on LR2021 startReceive() is never called again on its own. A 'set tx'
issued while the radio was listening could therefore stop reception until the
next reboot. Observed a few times on an LR2021 repeater; recovery required a
power cycle.
Dispatcher's stuck-radio check does not catch it: isInRecvMode() reports the
wrapper's own `state` flag rather than the chip's actual mode, so it still
believes the radio is in Rx, and it only raises ERR_EVENT_STARTRX_TIMEOUT
without attempting recovery.
Fix: on LR2021, drop to standby via idle() before writing the PA config and let
checkRecv() re-arm Rx - the same pattern resetAGC() and
applySideDetectorConfig() already use. Other radios are left untouched.
Affects meshtracker_x1 and meshnology_w12 (both USE_LR2021).
Tested on hardware with an LR2021 repeater: six consecutive 'set tx' changes
(15/18/21/14/19/14), after which the radio kept receiving and forwarding
traffic (rawrx/rxpkts increasing, no missed IRQs). Noise-floor sampling also
kept updating, which only happens while state == STATE_RX.
Introduced consistent preferences for external LoRa FEM RX and TX gain settings in NodePrefs. Updated companion MyMesh to apply these settings during initialization and transmission. Added unit tests to verify the round-trip serialization of these new preferences.
CustomLR1110::startReceive() passed RADIOLIB_LR11X0_IRQ_PREAMBLE_DETECTED
(1<<4 = 16) as RadioLib's first argument, which is the RX *timeout*, not an
IRQ mask. At the LR11x0's 30.52us tick that armed the receiver for ~488us, so
it dropped out of RX before any packet could arrive and the node received
nothing at all -- while transmitting normally.
Symptoms on a SenseCAP T1000-E: tx_air_secs rising, rx_air_secs stuck at 0,
recv_errors 0, and the noise floor pinned at the -120 clamp because
getCurrentRSSI() never sampled a live receiver.
Pass RADIOLIB_LR11X0_RX_TIMEOUT_INF (continuous RX), which is what
LR11x0::startReceive() itself uses, keeping the PREAMBLE_DETECTED flag in the
reported IRQ flags as intended.
Introduced in ea5d7c8b ("LR1110: add PREAMBLE_DETECTED to reported irq flags").
Verified on two T1000-E units: with only the repeater fixed it began receiving
(last_rssi -29, SNR 17.0) while the unfixed companion stayed deaf; fixing both
brought up the link in each direction.
If Bluefruit.begin fails, BLE OTA mode won't actually start and the board might require a reboot to reattempt.
Fixes:
- Bluefruit.begin returns false in NRF52Board.startOTAUpdate if OTA mode fails to start. User is notified of the fault through existing error message in CommonCLI and can reattempt "start ota" command.
Rastislav Vysoky