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Merge pull request #674 from andrew-moroz/sx126x-rx-gain-persist

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sx126x-rx-gain-persist: add ability to persist Rx gain setting when calling SX126x::setRxBoostedGainMode
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Jan Gromeš 2023-01-29 16:53:55 +01:00 • committed by GitHub
commit ef85c5f476
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 21 additions and 2 deletions
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19
src/modules/SX126x/SX126x.cpp
View file

@ -870,7 +870,7 @@ int16_t SX126x::setRxBandwidth(float rxBw) {
return(setModulationParamsFSK(_br, _pulseShape, _rxBw, _freqDev));
}
int16_t SX126x::setRxBoostedGainMode(bool rxbgm) {
int16_t SX126x::setRxBoostedGainMode(bool rxbgm, bool persist) {
// read the current register value
uint8_t rxGain = 0;
int16_t state = readRegister(RADIOLIB_SX126X_REG_RX_GAIN, &rxGain, 1);
@ -887,6 +887,23 @@ int16_t SX126x::setRxBoostedGainMode(bool rxbgm) {
state = writeRegister(RADIOLIB_SX126X_REG_RX_GAIN, &rxGain, 1);
RADIOLIB_ASSERT(state);
// add Rx Gain register to retention memory if requested
if(persist) {
// values and registers below are specified in SX126x datasheet v2.1 section 9.6, just below table 9-3
uint8_t value0 = 0x01;
uint8_t value1 = 0x08;
uint8_t value2 = 0xAC;
state = writeRegister(RADIOLIB_SX126X_REG_RX_GAIN_RETENTION_0, &value0, 1);
RADIOLIB_ASSERT(state);
state = writeRegister(RADIOLIB_SX126X_REG_RX_GAIN_RETENTION_1, &value1, 1);
RADIOLIB_ASSERT(state);
state = writeRegister(RADIOLIB_SX126X_REG_RX_GAIN_RETENTION_2, &value2, 1);
RADIOLIB_ASSERT(state);
}
return(state);
}

4
src/modules/SX126x/SX126x.h
View file

@ -713,9 +713,11 @@ class SX126x: public PhysicalLayer {
\param rxbgm True for Rx Boosted Gain, false for Rx Power Saving Gain
\param persist True to persist Rx gain setting when waking up from warm-start mode (e.g. when using Rx duty cycle mode)
\returns \ref status_codes
*/
int16_t setRxBoostedGainMode(bool rxbgm);
int16_t setRxBoostedGainMode(bool rxbgm, bool persist = true);
/*!
\brief Sets time-bandwidth product of Gaussian filter applied for shaping.