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Implemented AFC&AGC trigger control

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This commit is contained in:
Libor Tomsik 2021-04-15 08:37:47 +02:00
parent 2ae0188e50
commit ac4ea556ae
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GPG key ID: 29CB8B18FAB6FBDB
2 changed files with 52 additions and 11 deletions
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25
src/modules/SX127x/SX127x.cpp
View file

@ -92,7 +92,11 @@ int16_t SX127x::beginFSK(uint8_t chipVersion, float br, float freqDev, float rxB
state = SX127x::setAFCBandwidth(rxBw);
RADIOLIB_ASSERT(state);
state = _mod->SPIsetRegValue(SX127X_REG_RX_CONFIG, 0x1E);//TODO
//sets AFC&AGC trigger to RSSI and preamble detect
state = SX127x::setAFCAGCTrigger(SX127X_RX_TRIGGER_BOTH);
RADIOLIB_ASSERT(state);
state = SX127x::setAFC(true);
RADIOLIB_ASSERT(state);
// set receiver bandwidth
@ -783,6 +787,25 @@ int16_t SX127x::setAFCBandwidth(float rxBw){
return(_mod->SPIsetRegValue(SX127X_REG_AFC_BW, calculateBWManExp(rxBw), 4, 0));
}
int16_t SX127x::setAFC(bool isEnabled){
// check active modem
if(getActiveModem() != SX127X_FSK_OOK) {
return(ERR_WRONG_MODEM);
}
//set AFC auto on/off
return(_mod->SPIsetRegValue(SX127X_REG_RX_CONFIG, isEnabled ? SX127X_AFC_AUTO_ON : SX127X_AFC_AUTO_OFF, 4, 4));
}
int16_t SX127x::setAFCAGCTrigger(uint8_t trigger){
if(getActiveModem() != SX127X_FSK_OOK) {
return(ERR_WRONG_MODEM);
}
//set AFC&AGC trigger
return(_mod->SPIsetRegValue(SX127X_REG_RX_CONFIG, trigger, 2, 0));
}
int16_t SX127x::setSyncWord(uint8_t* syncWord, size_t len) {
// check active modem
if(getActiveModem() != SX127X_FSK_OOK) {

18
src/modules/SX127x/SX127x.h
View file

@ -823,6 +823,24 @@ class SX127x: public PhysicalLayer {
*/
int16_t setAFCBandwidth(float afcBw);
/*!
\brief Enables or disables FSK automatic frequency correction(AFC)
\param isEnabled AFC enabled or disabled
\return \ref status_codes
*/
int16_t setAFC(bool isEnabled);
/*!
\brief Controls trigger of AFC and AGC
\param trigger one from SX127X_RX_TRIGGER_NONE, SX127X_RX_TRIGGER_RSSI_INTERRUPT, SX127X_RX_TRIGGER_PREAMBLE_DETECT, SX127X_RX_TRIGGER_BOTH
\return \ref status_codes
*/
int16_t setAFCAGCTrigger(uint8_t trigger);
/*!
\brief Sets FSK sync word. Allowed sync words are up to 8 bytes long and can not contain null bytes. Only available in FSK mode.