add custom bitrate command
This commit is contained in:
franchioping
parent
240306de6e
commit
034caf2f11
39
RFM69.cpp
39
RFM69.cpp
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@ -551,6 +551,7 @@ void RFM69::sendFrame(uint16_t toAddress, const void *buffer,
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}
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if (success) {
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ESP_LOGI("RADIO_TX", "SENT.");
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} else {
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ESP_LOGE("RADIO_TX", "Step 5: FAILED - PACKETSENT bit never flipped!");
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// Check IRQ Flags to see what state it's stuck in
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@ -1168,6 +1169,44 @@ void RFM69::set300KBPS() {
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// ^^->DC: 00=none, 01=manchester, 10=whitening
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}
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void RFM69::setCustomBitrate(uint32_t targetBitrate) {
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// 1. Calculate Bitrate Divider
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// Formula: 32,000,000 / targetBitrate
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uint16_t bitrateField = 32000000 / targetBitrate;
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writeReg(0x03, (bitrateField >> 8) & 0xFF); // MSB
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writeReg(0x04, bitrateField & 0xFF); // LSB
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// 2. Calculate Frequency Deviation (FDEV)
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// We want FDEV to be roughly 0.5 to 1.0 times the Bitrate for reliability
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// Formula: FDEV = targetBitrate / 2 (narrower) or targetBitrate (wider)
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// Register Value = FDEV / 61.035
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uint32_t fdev = targetBitrate / 1; // 1:1 ratio is robust
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uint16_t fdevField = fdev / 61;
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writeReg(0x05, (fdevField >> 8) & 0xFF); // MSB
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writeReg(0x06, fdevField & 0xFF); // LSB
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// 3. Set Receiver Bandwidth (RXBW)
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// This must be larger than (2 * FDEV) + Bitrate.
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// We use a simplified lookup for common bandwidths (0x19 register)
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byte bwValue = 0x02; // Default 125kHz
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if (targetBitrate <= 1200)
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bwValue = 0x07; // 7.8 kHz
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else if (targetBitrate <= 4800)
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bwValue = 0x05; // 31.3 kHz
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else if (targetBitrate <= 19200)
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bwValue = 0x03; // 62.5 kHz
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else if (targetBitrate <= 38400)
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bwValue = 0x02; // 125.0 kHz
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else if (targetBitrate <= 100000)
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bwValue = 0x01; // 250.0 kHz
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else
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bwValue = 0x00; // 500.0 kHz (Max)
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writeReg(0x19, 0x40 | bwValue); // 0x40 maintains DCC setting
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writeReg(0x1A, 0x40 | bwValue); // Set AFC Bandwidth same as RXBW
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}
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//=============================================================================
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// setLNA() - disable the AGC and set a manual gain to attenuate input signal
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// Makes receiver hear a "weaker" signal.
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146
RFM69.h
146
RFM69.h
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@ -1,5 +1,6 @@
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// **********************************************************************************
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// Driver definition for HopeRF RFM69W/RFM69HW/RFM69CW/RFM69HCW, Semtech SX1231/1231H
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// Driver definition for HopeRF RFM69W/RFM69HW/RFM69CW/RFM69HCW, Semtech
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// SX1231/1231H
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// **********************************************************************************
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// Copyright LowPowerLab LLC 2018, https://www.LowPowerLab.com/contact
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// **********************************************************************************
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@ -49,7 +50,8 @@
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#define RF69_PLATFORM RF69_PLATFORM_ESP32
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#elif defined(ARDUINO)
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#define RF69_PLATFORM RF69_PLATFORM_ARDUINO
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#elif defined(AVR_ATtinyxy7) || defined(AVR_ATtinyxy6) // MegaTinyCore AVR Series-1
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#elif defined(AVR_ATtinyxy7) || \
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defined(AVR_ATtinyxy6) // MegaTinyCore AVR Series-1
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#define RF69_PLATFORM RF69_PLATFORM_ARDUINO
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#elif defined(__MSP430G2452__) || defined(__MSP430G2553__)
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#define RF69_PLATFORM RF69_PLATFORM_MSP430
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@ -86,42 +88,74 @@
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#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
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// Arduino Mega, Mega ADK, Mega Pro
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// 2->0, 3->1, 21->2, 20->3, 19->4, 18->5
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#define digitalPinToInterrupt(p) ((p) == 2 ? 0 : ((p) == 3 ? 1 : ((p) >= 18 && (p) <= 21 ? 23 - (p) : NOT_AN_INTERRUPT)))
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#define digitalPinToInterrupt(p) \
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((p) == 2 \
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? 0 \
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: ((p) == 3 ? 1 \
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: ((p) >= 18 && (p) <= 21 ? 23 - (p) : NOT_AN_INTERRUPT)))
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#elif defined(__AVR_ATmega1284__) || defined(__AVR_ATmega1284P__)
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// Arduino 1284 and 1284P - See Maniacbug and Optiboot
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// 10->0, 11->1, 2->2
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#define digitalPinToInterrupt(p) ((p) == 10 ? 0 : ((p) == 11 ? 1 : ((p) == 2 ? 2 : NOT_AN_INTERRUPT)))
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#define digitalPinToInterrupt(p) \
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((p) == 10 ? 0 : ((p) == 11 ? 1 : ((p) == 2 ? 2 : NOT_AN_INTERRUPT)))
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#elif defined(__AVR_ATmega32U4__)
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// Leonardo, Yun, Micro, Pro Micro, Flora, Esplora
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// 3->0, 2->1, 0->2, 1->3, 7->4
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#define digitalPinToInterrupt(p) ((p) == 0 ? 2 : ((p) == 1 ? 3 : ((p) == 2 ? 1 : ((p) == 3 ? 0 : ((p) == 7 ? 4 : NOT_AN_INTERRUPT)))))
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#define digitalPinToInterrupt(p) \
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((p) == 0 \
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? 2 \
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: ((p) == 1 \
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? 3 \
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: ((p) == 2 \
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? 1 \
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: ((p) == 3 ? 0 : ((p) == 7 ? 4 : NOT_AN_INTERRUPT)))))
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#else
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// All other arduino except Due:
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// Serial Arduino, Extreme, NG, BT, Uno, Diecimila, Duemilanove, Nano, Menta, Pro, Mini 04, Fio, LilyPad, Ethernet etc
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// 2->0, 3->1
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#define digitalPinToInterrupt(p) ((p) == 2 ? 0 : ((p) == 3 ? 1 : NOT_AN_INTERRUPT))
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// Serial Arduino, Extreme, NG, BT, Uno, Diecimila, Duemilanove, Nano, Menta,
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// Pro, Mini 04, Fio, LilyPad, Ethernet etc 2->0, 3->1
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#define digitalPinToInterrupt(p) \
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((p) == 2 ? 0 : ((p) == 3 ? 1 : NOT_AN_INTERRUPT))
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#endif
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#elif (RF69_PLATFORM == RF69_PLATFORM_UNO32) || (RF69_PLATFORM == RF69_PLATFORM_CHIPKIT_CORE)
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#elif (RF69_PLATFORM == RF69_PLATFORM_UNO32) || \
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(RF69_PLATFORM == RF69_PLATFORM_CHIPKIT_CORE)
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// Hmmm, this is correct for Uno32, but what about other boards on ChipKIT Core?
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#define digitalPinToInterrupt(p) ((p) == 38 ? 0 : ((p) == 2 ? 1 : ((p) == 7 ? 2 : ((p) == 8 ? 3 : ((p) == 735 ? 4 : NOT_AN_INTERRUPT)))))
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#define digitalPinToInterrupt(p) \
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((p) == 38 \
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? 0 \
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: ((p) == 2 \
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? 1 \
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: ((p) == 7 \
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? 2 \
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: ((p) == 8 ? 3 : ((p) == 735 ? 4 : NOT_AN_INTERRUPT)))))
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#else
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// Everything else (including Due and Teensy) interrupt number the same as the interrupt pin number
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// Everything else (including Due and Teensy) interrupt number the same as the
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// interrupt pin number
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#define digitalPinToInterrupt(p) (p)
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#endif
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#elif defined(__SAMD21__) || defined (__SAMD51__) //Arduino.h in most/all cores wrongly "#define digitalPinToInterrupt(P) (P)" after calling variant.h
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#elif defined(__SAMD21__) || \
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defined( \
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__SAMD51__) // Arduino.h in most/all cores wrongly "#define
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// digitalPinToInterrupt(P) (P)" after calling variant.h
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#define digitalPinToInterrupt(P) (g_APinDescription[P].ulExtInt)
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#endif
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// On some platforms, attachInterrupt() takes a pin number, not an interrupt number
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#if (defined(TEENSYDUINO))||((RF69_PLATFORM == RF69_PLATFORM_ARDUINO) && defined (__arm__) && (defined(ARDUINO_ARCH_SAMD) || defined(ARDUINO_SAM_DUE)))
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// On some platforms, attachInterrupt() takes a pin number, not an interrupt
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// number
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#if (defined(TEENSYDUINO)) || \
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((RF69_PLATFORM == RF69_PLATFORM_ARDUINO) && defined(__arm__) && \
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(defined(ARDUINO_ARCH_SAMD) || defined(ARDUINO_SAM_DUE)))
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#define RF69_ATTACHINTERRUPT_TAKES_PIN_NUMBER
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#endif
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////////////////////////////////////////////////////
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#define RF69_SPI_CS SS // SS is the SPI slave select pin, for instance D10 on ATmega328
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#define RF69_SPI_CS \
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SS // SS is the SPI slave select pin, for instance D10 on ATmega328
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// INT0 on AVRs should be connected to RFM69's DIO0 (ex on ATmega328 it's D2, on ATmega644/1284 it's D2)
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#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) || defined(__AVR_ATmega88) || defined(__AVR_ATmega8__) || defined(__AVR_ATmega88__)
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// INT0 on AVRs should be connected to RFM69's DIO0 (ex on ATmega328 it's D2, on
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// ATmega644/1284 it's D2)
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#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) || \
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defined(__AVR_ATmega88) || defined(__AVR_ATmega8__) || \
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defined(__AVR_ATmega88__)
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#define RF69_IRQ_PIN 2
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#elif defined(__AVR_ATmega644P__) || defined(__AVR_ATmega1284P__)
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#define RF69_IRQ_PIN 2
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@ -144,8 +178,12 @@
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#define RF69_IRQ_PIN 2
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#endif
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#define RF69_MAX_DATA_LEN 61 // to take advantage of the built in AES/CRC we want to limit the frame size to the internal FIFO size (66 bytes - 3 bytes overhead - 2 bytes crc)
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#define CSMA_LIMIT -90 // upper RX signal sensitivity threshold in dBm for carrier sense access
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#define RF69_MAX_DATA_LEN \
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61 // to take advantage of the built in AES/CRC we want to limit the frame
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// size to the internal FIFO size (66 bytes - 3 bytes overhead - 2 bytes
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// crc)
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#define CSMA_LIMIT \
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-90 // upper RX signal sensitivity threshold in dBm for carrier sense access
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#define RF69_MODE_SLEEP 0 // XTAL OFF
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#define RF69_MODE_STANDBY 1 // XTAL ON
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#define RF69_MODE_SYNTH 2 // PLL ON
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@ -159,12 +197,15 @@
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#define RF69_915MHZ 91
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#define null 0
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#define COURSE_TEMP_COEF -90 // puts the temperature reading in the ballpark, user can fine tune the returned value
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#define COURSE_TEMP_COEF \
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-90 // puts the temperature reading in the ballpark, user can fine tune the
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// returned value
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#define RF69_BROADCAST_ADDR 0
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#define RF69_CSMA_LIMIT_MS 1000
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#define RF69_TX_LIMIT_MS 1000
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#define RF69_FXOSC 32000000L
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#define RF69_FSTEP 61.03515625 // == FXOSC / 2^19 = 32MHz / 2^19 (p13 in datasheet)
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#define RF69_FSTEP \
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61.03515625 // == FXOSC / 2^19 = 32MHz / 2^19 (p13 in datasheet)
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// TWS: define CTLbyte bits
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#define RFM69_CTL_SENDACK 0x80
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@ -173,7 +214,8 @@
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#define RFM69_ACK_TIMEOUT 30 // 30ms roundtrip req for 61byte packets
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// Native hardware ListenMode is experimental
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// It was determined to be buggy and unreliable, see https://lowpowerlab.com/forum/low-power-techniques/ultra-low-power-listening-mode-for-battery-nodes/msg20261/#msg20261
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// It was determined to be buggy and unreliable, see
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// https://lowpowerlab.com/forum/low-power-techniques/ultra-low-power-listening-mode-for-battery-nodes/msg20261/#msg20261
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// uncomment to try ListenMode, adds ~1K to compiled size
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// FYI - 10bit addressing is not supported in ListenMode
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// #define RF69_LISTENMODE_ENABLE
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@ -186,20 +228,27 @@
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class RFM69 {
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public:
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static uint8_t DATA[RF69_MAX_DATA_LEN+1]; // RX/TX payload buffer, including end of string NULL char
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static uint8_t DATA[RF69_MAX_DATA_LEN + 1]; // RX/TX payload buffer, including
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// end of string NULL char
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static uint8_t DATALEN;
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static uint16_t SENDERID;
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static uint16_t TARGETID; // should match _address
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static uint8_t PAYLOADLEN;
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static uint8_t ACK_REQUESTED;
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static uint8_t ACK_RECEIVED; // should be polled immediately after sending a packet with ACK request
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static int16_t RSSI; // most accurate RSSI during reception (closest to the reception). RSSI of last packet.
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static uint8_t ACK_RECEIVED; // should be polled immediately after sending a
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// packet with ACK request
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static int16_t RSSI; // most accurate RSSI during reception (closest to the
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// reception). RSSI of last packet.
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static uint8_t _mode; // should be protected?
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RFM69(uint8_t slaveSelectPin, uint8_t interruptPin, bool isRFM69HW, uint8_t interruptNum __attribute__((unused))) //interruptNum is now deprecated
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RFM69(uint8_t slaveSelectPin, uint8_t interruptPin, bool isRFM69HW,
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uint8_t interruptNum
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__attribute__((unused))) // interruptNum is now deprecated
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: RFM69(slaveSelectPin, interruptPin, isRFM69HW) {};
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RFM69(uint8_t slaveSelectPin=RF69_SPI_CS, uint8_t interruptPin=RF69_IRQ_PIN, bool isRFM69HW_HCW=false, SPIClass *spi=nullptr);
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RFM69(uint8_t slaveSelectPin = RF69_SPI_CS,
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uint8_t interruptPin = RF69_IRQ_PIN, bool isRFM69HW_HCW = false,
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SPIClass *spi = nullptr);
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bool initialize(uint8_t freqBand, uint16_t ID, uint8_t networkID = 1);
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uint8_t getVersion();
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@ -209,8 +258,11 @@ class RFM69 {
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void setNetwork(uint8_t networkID);
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void setIsrCallback(void (*callback)());
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virtual bool canSend();
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virtual void send(uint16_t toAddress, const void* buffer, uint8_t bufferSize, bool requestACK=false);
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virtual bool sendWithRetry(uint16_t toAddress, const void* buffer, uint8_t bufferSize, uint8_t retries=2, uint8_t retryWaitTime=RFM69_ACK_TIMEOUT);
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virtual void send(uint16_t toAddress, const void *buffer, uint8_t bufferSize,
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bool requestACK = false);
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virtual bool sendWithRetry(uint16_t toAddress, const void *buffer,
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uint8_t bufferSize, uint8_t retries = 2,
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uint8_t retryWaitTime = RFM69_ACK_TIMEOUT);
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virtual bool receiveDone();
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bool ACKReceived(uint16_t fromNodeID);
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bool ACKRequested();
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@ -222,7 +274,10 @@ class RFM69 {
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void encrypt(const char *key);
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void setCS(uint8_t newSPISlaveSelect);
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bool setIrq(uint8_t newIRQPin);
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int16_t readRSSI(bool forceTrigger=false); // *current* signal strength indicator; e.g. < -90dBm says the frequency channel is free + ready to transmit
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int16_t
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readRSSI(bool forceTrigger =
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false); // *current* signal strength indicator; e.g. < -90dBm
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// says the frequency channel is free + ready to transmit
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bool getSpyMode();
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void spyMode(bool onOff = true);
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bool isSyncOn();
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@ -230,17 +285,25 @@ class RFM69 {
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bool isCrcOn();
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bool isAesOn();
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// void promiscuous(bool onOff=true); // replaced with spyMode()
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virtual void setHighPower(bool _isRFM69HW_HCW=true); // has to be called after initialize() for RFM69 HW/HCW
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virtual void setHighPower(
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bool _isRFM69HW_HCW =
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true); // has to be called after initialize() for RFM69 HW/HCW
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bool isHighPower();
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virtual uint8_t getPowerLevel(); // get powerLevel
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virtual void setPowerLevel(uint8_t level); // reduce/increase transmit power level
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virtual int8_t setPowerDBm(int8_t dBm); // reduce/increase transmit power level, in dBm
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virtual void
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setPowerLevel(uint8_t level); // reduce/increase transmit power level
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virtual int8_t
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setPowerDBm(int8_t dBm); // reduce/increase transmit power level, in dBm
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double dBm_to_mW(uint8_t dBm); // convert dBm to mW
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uint8_t getOutputPower();
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void sleep();
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uint8_t readTemperature(uint8_t calFactor = 0); // get CMOS temperature (8bit)
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void rcCalibration(); // calibrate the internal RC oscillator for use in wide temperature variations - see datasheet section [4.3.5. RC Timer Accuracy]
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void rcCalibration(); // calibrate the internal RC oscillator for use in wide
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// temperature variations - see datasheet section
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// [4.3.5. RC Timer Accuracy]
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void set300KBPS();
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void setCustomBitrate(uint32_t targetBitrate);
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uint8_t setLNA(uint8_t newReg);
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// allow hacking registers by making these public
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@ -262,7 +325,8 @@ class RFM69 {
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virtual void interruptHook(uint8_t CTLbyte __attribute__((unused))) {};
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static volatile bool _haveData;
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static RFM69 *_instance;
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virtual void sendFrame(uint16_t toAddress, const void* buffer, uint8_t size, bool requestACK=false, bool sendACK=false);
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virtual void sendFrame(uint16_t toAddress, const void *buffer, uint8_t size,
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bool requestACK = false, bool sendACK = false);
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// for ListenMode sleep/timer
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static void delayIrq();
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@ -297,8 +361,8 @@ class RFM69 {
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// ListenMode specific declarations
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//=============================================================================
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public:
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// When we receive a packet in listen mode, this is the time left in the sender's burst.
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// You need to wait at least this long before trying to reply.
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// When we receive a packet in listen mode, this is the time left in the
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// sender's burst. You need to wait at least this long before trying to reply.
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static volatile uint16_t RF69_LISTEN_BURST_REMAINING_MS;
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void listenModeStart(void);
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@ -308,8 +372,9 @@ class RFM69 {
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// rx and idle duration in microseconds
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bool listenModeSetDurations(uint32_t &rxDuration, uint32_t &idleDuration);
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// The values passed to listenModeSetDurations() may be slightly different to accomodate
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// what is allowed by the radio. This function returns the actual values used.
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// The values passed to listenModeSetDurations() may be slightly different to
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// accomodate what is allowed by the radio. This function returns the actual
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// values used.
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void listenModeGetDurations(uint32_t &rxDuration, uint32_t &idleDuration);
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// This repeatedly sends the message to the target node for the duration
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@ -317,7 +382,8 @@ class RFM69 {
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// is transmitted to the receiver, and it is expected that the receiver
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// wait for the burst to end before attempting a reply.
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// See RF69_LISTEN_BURST_REMAINING_MS above.
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void listenModeSendBurst(uint8_t targetNode, const void* buffer, uint8_t size);
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void listenModeSendBurst(uint8_t targetNode, const void *buffer,
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uint8_t size);
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protected:
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void listenModeInterruptHandler(void);
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