liquidraver 5f9c8b0d99 sx1276: fix loramac-node direction fast-path, resetAGC, add BW 62.5kHz ...

Three correctness fixes for the SX127x radio adapter on top of
Rastislav's initial sx1276 + patch commits:

1. _loramac_node flag (LoRaRadioBase + SX127xRadio):
   Guard the direction-only fast path in configureTx()/configureRx()
   so loramac-node always calls both Radio.SetTxConfig() and
   Radio.SetRxConfig().  Skipping either leaves TxTimeout=0 in the
   library, causing an immediate TX timeout callback, which prevents
   the _tx_signal from ever being raised and blocks the TX wait thread
   for TX_TIMEOUT_MS (5 s) — a 5-second RX blackout per transmission.
   This was the root cause of "boots but no RX".

2. SX127xRadio::resetAGC() override:
   The base-class resetAGC() calls startReceive() after hwResetAGC().
   During async RX the loramac-node modem mutex is STATE_BUSY, so
   lora_recv_async() returns -EBUSY, which sets _in_recv_mode = 0 and
   corrupts the receive state machine.  Override skips the call
   entirely — the loramac-node driver self-manages AGC.

3. BW 62.5 kHz support in loramac-node/sx1276.c + patch:
   Rastislav's 0004-lora-sx127x-62k5-bandwidth.patch adds BW_62_KHZ
   support to sx12xx_common.c (Zephyr side) but not to the loramac-
   node library itself.  Without this fix bandwidth index 3 hits the
   "while(1)" fatal guard in SX1276SetRxConfig/SX1276SetTxConfig.
   This commit patches sx1276.c directly and adds
   patches/modules/loramac-node/0001-sx1276-bw62k5.patch so the fix
   survives west update.  CMakeLists.txt is extended to apply module
   patches via the existing zephcore_apply_patches() mechanism.

2026-04-08 08:30:17 +02:00

..

0001-sx1276-bw62k5.patch

sx1276: fix loramac-node direction fast-path, resetAGC, add BW 62.5kHz

2026-04-08 08:30:17 +02:00