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https://github.com/liberatedsystems/RNode_Firmware_CE.git
synced 2024-07-02 14:34:13 +02:00
Added register values and op-codes. Cleanup.
This commit is contained in:
Mark Qvist
parent
fe50c2cac9
commit
cec979997e
105
sx126x.cpp
105
sx126x.cpp
@ -43,12 +43,20 @@
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#define OP_WRITE_REGISTER_6X 0x0D
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#define OP_DIO3_TCXO_CTRL_6X 0x97
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#define OP_DIO2_RF_CTRL_6X 0x9D
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#define OP_CAD_PARAMS 0x88
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#define OP_CALIBRATE_6X 0x89
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#define OP_RX_TX_FALLBACK_MODE_6X 0x93
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#define OP_REGULATOR_MODE_6X 0x96
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#define OP_CALIBRATE_IMAGE_6X 0x98
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#define MASK_CALIBRATE_ALL 0x7f
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#define IRQ_TX_DONE_MASK_6X 0x01
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#define IRQ_RX_DONE_MASK_6X 0x02
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#define IRQ_HEADER_DET_MASK_6X 0x10
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#define IRQ_PREAMBLE_DET_MASK_6X 0x04
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#define IRQ_PAYLOAD_CRC_ERROR_MASK_6X 0x40
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#define IRQ_ALL_MASK_6X 0b0100001111111111
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#define MODE_LONG_RANGE_MODE_6X 0x01
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@ -70,6 +78,12 @@
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#define MODE_TCXO_1_7V_6X 0x01
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#define MODE_TCXO_1_6V_6X 0x00
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#define MODE_STDBY_RC_6X 0x00
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#define MODE_STDBY_XOSC_6X 0x01
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#define MODE_FALLBACK_STDBY_RC_6X 0x20
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#define MODE_IMPLICIT_HEADER 0x01
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#define MODE_EXPLICIT_HEADER 0x00
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#define SYNC_WORD_6X 0x1424
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#define XTAL_FREQ_6X (double)32000000
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@ -331,6 +345,46 @@ void sx126x::reset(void) {
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}
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}
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void sx126x::calibrate(void) {
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// Put in STDBY_RC mode before calibration
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uint8_t mode_byte = MODE_STDBY_RC_6X;
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executeOpcode(OP_STANDBY_6X, &mode_byte, 1);
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// calibrate RC64k, RC13M, PLL, ADC and image
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uint8_t calibrate = MASK_CALIBRATE_ALL;
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executeOpcode(OP_CALIBRATE_6X, &calibrate, 1);
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delay(5);
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waitOnBusy();
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}
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void sx126x::calibrate_image(long frequency) {
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uint8_t image_freq[2] = {0};
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if (frequency >= 430E6 && frequency <= 440E6) {
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image_freq[0] = 0x6B;
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image_freq[1] = 0x6F;
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}
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else if (frequency >= 470E6 && frequency <= 510E6) {
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image_freq[0] = 0x75;
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image_freq[1] = 0x81;
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}
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else if (frequency >= 779E6 && frequency <= 787E6) {
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image_freq[0] = 0xC1;
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image_freq[1] = 0xC5;
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}
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else if (frequency >= 863E6 && frequency <= 870E6) {
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image_freq[0] = 0xD7;
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image_freq[1] = 0xDB;
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}
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else if (frequency >= 902E6 && frequency <= 928E6) {
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image_freq[0] = 0xE1;
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image_freq[1] = 0xE9;
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}
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executeOpcode(OP_CALIBRATE_IMAGE_6X, image_freq, 2);
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waitOnBusy();
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}
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int sx126x::begin(long frequency)
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{
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@ -350,20 +404,13 @@ int sx126x::begin(long frequency)
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pinMode(_rxen, OUTPUT);
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}
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// Put in STDBY_RC mode before calibration
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uint8_t mode_byte = 0x00;
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executeOpcode(OP_STANDBY_6X, &mode_byte, 1);
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calibrate();
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calibrate_image(frequency);
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// calibrate RC64k, RC13M, PLL, ADC and image
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uint8_t calibrate = 0x7F;
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executeOpcode(OP_CALIBRATE_6X, &calibrate, 1);
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#if HAS_TCXO
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enableTCXO();
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#endif
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enableTCXO();
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loraMode();
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idle();
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standby();
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// Set sync word
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setSyncWord(SYNC_WORD_6X);
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@ -408,8 +455,7 @@ void sx126x::end()
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int sx126x::beginPacket(int implicitHeader)
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{
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// put in standby mode
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idle();
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standby();
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if (implicitHeader) {
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implicitHeaderMode();
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@ -654,12 +700,12 @@ void sx126x::receive(int size)
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executeOpcode(OP_RX_6X, mode, 3);
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}
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void sx126x::idle()
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void sx126x::standby()
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{
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// STDBY_XOSC
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uint8_t byte = 0x01;
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uint8_t byte = MODE_STDBY_XOSC_6X;
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// STDBY_RC
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// uint8_t byte = 0x00;
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// uint8_t byte = MODE_STDBY_RC_6X;
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executeOpcode(OP_STANDBY_6X, &byte, 1);
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}
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@ -670,19 +716,18 @@ void sx126x::sleep()
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}
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void sx126x::enableTCXO() {
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// only tested for RAK4630, voltage may be different on other platforms
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#if HAS_TCXO
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#if BOARD_MODEL == BOARD_RAK4630
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uint8_t buf[4] = {MODE_TCXO_3_3V_6X, 0x00, 0x00, 0xFF};
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#elif BOARD_MODEL == BOARD_TBEAM
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uint8_t buf[4] = {MODE_TCXO_1_8V_6X, 0x00, 0x00, 0xFF};
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#endif
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executeOpcode(OP_DIO3_TCXO_CTRL_6X, buf, 4);
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#endif
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}
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void sx126x::disableTCXO() {
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// currently cannot disable on SX1262?
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}
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// TODO: Once enabled, SX1262 needs a complete reset to disable TCXO
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void sx126x::disableTCXO() { }
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void sx126x::setTxPower(int level, int outputPin) {
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// currently no low power mode for SX1262 implemented, assuming PA boost
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@ -693,26 +738,22 @@ void sx126x::setTxPower(int level, int outputPin) {
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uint8_t pa_buf[4];
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pa_buf[0] = 0x04;
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pa_buf[1] = 0x07;
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pa_buf[2] = 0x00;
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pa_buf[3] = 0x01;
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pa_buf[0] = 0x04; // PADutyCycle needs to be 0x04 to achieve 22dBm output, but can be lowered for better efficiency at lower outputs
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pa_buf[1] = 0x07; // HPMax at 0x07 is maximum supported for SX1262
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pa_buf[2] = 0x00; // DeviceSel 0x00 for SX1262 (0x01 for SX1261)
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pa_buf[3] = 0x01; // PALut always 0x01 (reserved according to datasheet)
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executeOpcode(OP_PA_CONFIG_6X, pa_buf, 4); // set pa_config for high power
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if (level > 22) {
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level = 22;
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}
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else if (level < -9) {
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level = -9;
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}
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if (level > 22) { level = 22; }
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else if (level < -9) { level = -9; }
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writeRegister(REG_OCP_6X, 0x38); // 160mA limit, overcurrent protection
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uint8_t tx_buf[2];
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tx_buf[0] = level;
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tx_buf[1] = 0x02; // ramping time - 40 microseconds
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tx_buf[1] = 0x02; // PA ramping time - 40 microseconds
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executeOpcode(OP_TX_PARAMS_6X, tx_buf, 2);
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4
sx126x.h
4
sx126x.h
@ -55,7 +55,7 @@ public:
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void onReceive(void(*callback)(int));
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void receive(int size = 0);
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void idle();
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void standby();
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void sleep();
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bool preInit();
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@ -113,6 +113,8 @@ private:
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void optimizeModemSensitivity();
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void reset(void);
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void calibrate(void);
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void calibrate_image(long frequency);
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private:
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SPISettings _spiSettings;
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@ -90,7 +90,7 @@ void sx127x::setSPIFrequency(uint32_t frequency) { _spiSettings = SPISettings(fr
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void sx127x::setPins(int ss, int reset, int dio0, int busy) { _ss = ss; _reset = reset; _dio0 = dio0; _busy = busy; }
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uint8_t ISR_VECT sx127x::readRegister(uint8_t address) { return singleTransfer(address & 0x7f, 0x00); }
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void sx127x::writeRegister(uint8_t address, uint8_t value) { singleTransfer(address | 0x80, value); }
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void sx127x::idle() { writeRegister(REG_OP_MODE_7X, MODE_LONG_RANGE_MODE_7X | MODE_STDBY_7X); }
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void sx127x::standby() { writeRegister(REG_OP_MODE_7X, MODE_LONG_RANGE_MODE_7X | MODE_STDBY_7X); }
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void sx127x::sleep() { writeRegister(REG_OP_MODE_7X, MODE_LONG_RANGE_MODE_7X | MODE_SLEEP_7X); }
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uint8_t sx127x::modemStatus() { return readRegister(REG_MODEM_STAT_7X); }
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void sx127x::setSyncWord(uint8_t sw) { writeRegister(REG_SYNC_WORD_7X, sw); }
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@ -168,7 +168,7 @@ int sx127x::begin(long frequency) {
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enableCrc();
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setTxPower(2);
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idle();
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standby();
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return 1;
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}
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@ -180,7 +180,7 @@ void sx127x::end() {
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}
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int sx127x::beginPacket(int implicitHeader) {
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idle();
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standby();
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if (implicitHeader) {
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implicitHeaderMode();
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