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https://github.com/meshtastic/firmware.git
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80 lines
2.4 KiB
C++
80 lines
2.4 KiB
C++
#include "RadioLibRF95.h"
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#include "configuration.h"
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// From datasheet but radiolib doesn't know anything about this
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#define SX127X_REG_TCXO 0x4B
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RadioLibRF95::RadioLibRF95(Module *mod) : SX1278(mod) {}
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int16_t RadioLibRF95::begin(float freq, float bw, uint8_t sf, uint8_t cr, uint8_t syncWord, int8_t power, uint16_t preambleLength,
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uint8_t gain)
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{
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// execute common part
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uint8_t rf95versions[2] = {0x12, 0x11};
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int16_t state = SX127x::begin(rf95versions, sizeof(rf95versions), syncWord, preambleLength);
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RADIOLIB_ASSERT(state);
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// current limit was removed from module' ctor
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// override default value (60 mA)
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state = setCurrentLimit(currentLimit);
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LOG_DEBUG("Current limit set to %f\n", currentLimit);
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LOG_DEBUG("Current limit set result %d\n", state);
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// configure settings not accessible by API
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// state = config();
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RADIOLIB_ASSERT(state);
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#ifdef RF95_TCXO
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state = _mod->SPIsetRegValue(RADIOLIB_SX127X_REG_TCXO, 0x10 | _mod->SPIgetRegValue(RADIOLIB_SX127X_REG_TCXO));
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RADIOLIB_ASSERT(state);
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#endif
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// configure publicly accessible settings
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state = setFrequency(freq);
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RADIOLIB_ASSERT(state);
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state = setBandwidth(bw);
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RADIOLIB_ASSERT(state);
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state = setSpreadingFactor(sf);
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RADIOLIB_ASSERT(state);
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state = setCodingRate(cr);
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RADIOLIB_ASSERT(state);
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state = setOutputPower(power);
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RADIOLIB_ASSERT(state);
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state = setGain(gain);
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return (state);
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}
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int16_t RadioLibRF95::setFrequency(float freq)
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{
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// RADIOLIB_CHECK_RANGE(freq, 862.0, 1020.0, ERR_INVALID_FREQUENCY);
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// set frequency
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return (SX127x::setFrequencyRaw(freq));
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}
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#define RH_RF95_MODEM_STATUS_CLEAR 0x10
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#define RH_RF95_MODEM_STATUS_HEADER_INFO_VALID 0x08
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#define RH_RF95_MODEM_STATUS_RX_ONGOING 0x04
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#define RH_RF95_MODEM_STATUS_SIGNAL_SYNCHRONIZED 0x02
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#define RH_RF95_MODEM_STATUS_SIGNAL_DETECTED 0x01
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bool RadioLibRF95::isReceiving()
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{
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// 0x0b == Look for header info valid, signal synchronized or signal detected
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uint8_t reg = readReg(RADIOLIB_SX127X_REG_MODEM_STAT);
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// Serial.printf("reg %x\n", reg);
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return (reg & (RH_RF95_MODEM_STATUS_SIGNAL_DETECTED | RH_RF95_MODEM_STATUS_SIGNAL_SYNCHRONIZED |
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RH_RF95_MODEM_STATUS_HEADER_INFO_VALID)) != 0;
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}
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uint8_t RadioLibRF95::readReg(uint8_t addr)
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{
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Module *mod = this->getMod();
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return mod->SPIreadRegister(addr);
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} |