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fix(radio): put LR2021 in standby before re-config in setParams

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WayenWeng committed 2026-10-27 10:44:36 +08:00
1 parent d694bd39c7
commit b0bacf8a04
1 file changed
+15 -7
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src/helpers/radiolib/CustomLR2021Wrapper.h
+15 -7
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@@ -16,15 +16,23 @@ public:
CustomLR2021Wrapper(CustomLR2021& radio, mesh::MainBoard& board) : RadioLibWrapper(radio, board) { }
void setParams(float freq, float bw, uint8_t sf, uint8_t cr) override {
((CustomLR2021 *)_radio)->setFrequency(freq);
((CustomLR2021 *)_radio)->setSpreadingFactor(sf);
((CustomLR2021 *)_radio)->setBandwidth(bw);
((CustomLR2021 *)_radio)->setCodingRate(cr);
auto r = (CustomLR2021 *)_radio;
// LR2021 only accepts RF/modulation config commands while in STANDBY mode.
// Re-configuring while in continuous RX gets silently rejected (-706),
// which broke hot frequency changes over BLE.
int16_t status = r->standby();
if (status != RADIOLIB_ERR_NONE) { MESH_DEBUG_PRINTLN("CustomLR2021Wrapper: standby() -> %d", status); }
if ((status = r->setFrequency(freq)) != RADIOLIB_ERR_NONE) { MESH_DEBUG_PRINTLN("CustomLR2021Wrapper: setFrequency() -> %d", status); }
if ((status = r->setSpreadingFactor(sf)) != RADIOLIB_ERR_NONE) { MESH_DEBUG_PRINTLN("CustomLR2021Wrapper: setSpreadingFactor() -> %d", status); }
if ((status = r->setBandwidth(bw)) != RADIOLIB_ERR_NONE) { MESH_DEBUG_PRINTLN("CustomLR2021Wrapper: setBandwidth() -> %d", status); }
if ((status = r->setCodingRate(cr)) != RADIOLIB_ERR_NONE) { MESH_DEBUG_PRINTLN("CustomLR2021Wrapper: setCodingRate() -> %d", status); }
updatePreamble(sf);
applySideDetectorConfig();
// internal idle() sets STATE_IDLE, which triggers a startReceive() on the next loop
status = applySideDetectorConfig();
if (status != RADIOLIB_ERR_NONE) { MESH_DEBUG_PRINTLN("CustomLR2021Wrapper: applySideDetectorConfig() -> %d", status); }
PacketMillis pm = calcMaxPacketMillis(sf, bw, cr, preambleLengthForSF(sf));
((CustomLR2021 *)_radio)->setPreambleMillis(pm.preambleMillis);
((CustomLR2021 *)_radio)->setMaxPayloadMillis(pm.payloadMillis);
r->setPreambleMillis(pm.preambleMillis); // pure in-memory setters, no standby needed
r->setMaxPayloadMillis(pm.payloadMillis);
}