112 lines
2.8 KiB
C++
112 lines
2.8 KiB
C++
#include "SX1262.h"
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SX1262::SX1262(Module* mod) : SX126x(mod) {
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}
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int16_t SX1262::begin(float freq, float bw, uint8_t sf, uint8_t cr, uint16_t syncWord, int8_t power, float currentLimit, uint16_t preambleLength) {
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// execute common part
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int16_t state = SX126x::begin(bw, sf, cr, syncWord, currentLimit, preambleLength);
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if(state != ERR_NONE) {
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return(state);
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}
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// configure publicly accessible settings
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state = setFrequency(freq);
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if(state != ERR_NONE) {
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return(state);
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}
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state = setOutputPower(power);
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if(state != ERR_NONE) {
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return(state);
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}
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return(state);
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}
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int16_t SX1262::beginFSK(float freq, float br, float freqDev, float rxBw, int8_t power, float currentLimit, uint16_t preambleLength, float dataShaping) {
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// execute common part
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int16_t state = SX126x::beginFSK(br, freqDev, rxBw, currentLimit, preambleLength, dataShaping);
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if(state != ERR_NONE) {
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return(state);
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}
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// configure publicly accessible settings
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state = setFrequency(freq);
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if(state != ERR_NONE) {
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return(state);
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}
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state = setOutputPower(power);
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if(state != ERR_NONE) {
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return(state);
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}
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return(state);
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}
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int16_t SX1262::setFrequency(float freq, bool calibrate) {
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// check frequency range
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if((freq < 150.0) || (freq > 960.0)) {
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return(ERR_INVALID_FREQUENCY);
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}
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int16_t state = ERR_NONE;
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// calibrate image
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if(calibrate) {
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uint8_t data[2];
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if(freq > 900.0) {
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data[0] = SX126X_CAL_IMG_902_MHZ_1;
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data[1] = SX126X_CAL_IMG_902_MHZ_2;
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} else if(freq > 850.0) {
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data[0] = SX126X_CAL_IMG_863_MHZ_1;
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data[1] = SX126X_CAL_IMG_863_MHZ_2;
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} else if(freq > 770.0) {
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data[0] = SX126X_CAL_IMG_779_MHZ_1;
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data[1] = SX126X_CAL_IMG_779_MHZ_2;
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} else if(freq > 460.0) {
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data[0] = SX126X_CAL_IMG_470_MHZ_1;
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data[1] = SX126X_CAL_IMG_470_MHZ_2;
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} else {
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data[0] = SX126X_CAL_IMG_430_MHZ_1;
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data[1] = SX126X_CAL_IMG_430_MHZ_2;
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}
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state = SX126x::calibrateImage(data);
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if(state != ERR_NONE) {
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return(state);
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}
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}
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// set frequency
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return(SX126x::setFrequencyRaw(freq));
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}
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int16_t SX1262::setOutputPower(int8_t power) {
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// check allowed power range
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if(!((power >= -17) && (power <= 22))) {
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return(ERR_INVALID_OUTPUT_POWER);
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}
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// get current OCP configuration
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uint8_t ocp = 0;
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int16_t state = readRegister(SX126X_REG_OCP_CONFIGURATION, &ocp, 1);
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if(state != ERR_NONE) {
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return(state);
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}
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// enable high power PA for output power higher than 14 dBm
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if(power > 13) {
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SX126x::setPaConfig(0x04, SX126X_PA_CONFIG_SX1262);
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} else {
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SX126x::setPaConfig(0x04, SX126X_PA_CONFIG_SX1261);
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}
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// set output power
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// TODO power ramp time configuration
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SX126x::setTxParams(power);
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// restore OCP configuration
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return(writeRegister(SX126X_REG_OCP_CONFIGURATION, &ocp, 1));
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}
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