Port of lowpowerlab RFM69 Packet radio library for HopeRF RFM69H with hacks from debugging with a FRDM-KL25Z
Fork of RFM69 by
Diff: RFM69.cpp
- Revision:
- 6:34009020999c
- Parent:
- 4:a6b314434ab4
- Child:
- 7:ad10455a9b7b
diff -r a6b314434ab4 -r 34009020999c RFM69.cpp --- a/RFM69.cpp Mon Jun 06 13:11:58 2016 +0000 +++ b/RFM69.cpp Sat Jun 25 07:10:52 2016 +0000 @@ -45,7 +45,6 @@ #include <RFM69registers.h> #include <SPI.h> -extern Serial pc; volatile uint8_t RFM69::DATA[RF69_MAX_DATA_LEN]; volatile uint8_t RFM69::_mode; // current transceiver state volatile uint8_t RFM69::DATALEN; @@ -57,12 +56,12 @@ volatile int16_t RFM69::RSSI; // most accurate RSSI during reception (closest to the reception) RFM69::RFM69(PinName mosi, PinName miso, PinName sclk, PinName slaveSelectPin, PinName interrupt): - _slaveSelectPin(slaveSelectPin) , _spi(mosi, miso, sclk)/*, _interrupt(interrupt)*/ { + _slaveSelectPin(slaveSelectPin) , _spi(mosi, miso, sclk), _interrupt(interrupt) { // Setup the spi for 8 bit data, high steady state clock, // second edge capture, with a 1MHz clock rate _spi.format(8,0); - _spi.frequency(1000000); + _spi.frequency(4000000); _mode = RF69_MODE_STANDBY; _promiscuousMode = false; _powerLevel = 31; @@ -89,15 +88,17 @@ // +13dBm formula: Pout = -18 + OutputPower (with PA0 or PA1**) // +17dBm formula: Pout = -14 + OutputPower (with PA1 and PA2)** // +20dBm formula: Pout = -11 + OutputPower (with PA1 and PA2)** and high power PA settings (section 3.3.7 in datasheet) + ///* 0x11 */ { REG_PALEVEL, RF_PALEVEL_PA0_ON | RF_PALEVEL_PA1_OFF | RF_PALEVEL_PA2_OFF | RF_PALEVEL_OUTPUTPOWER_11111}, + ///* 0x13 */ { REG_OCP, RF_OCP_ON | RF_OCP_TRIM_95 }, // over current protection (default is 95mA) /* 0x11 */ { REG_PALEVEL, RF_PALEVEL_PA0_ON | RF_PALEVEL_PA1_ON | RF_PALEVEL_PA2_ON | RF_PALEVEL_OUTPUTPOWER_11111}, /* 0x13 */ { REG_OCP, RF_OCP_ON | RF_OCP_TRIM_95 }, // over current protection (default is 95mA) // RXBW defaults are { REG_RXBW, RF_RXBW_DCCFREQ_010 | RF_RXBW_MANT_24 | RF_RXBW_EXP_5} (RxBw: 10.4KHz) /* 0x19 */ { REG_RXBW, RF_RXBW_DCCFREQ_010 | RF_RXBW_MANT_16 | RF_RXBW_EXP_2 }, // (BitRate < 2 * RxBw) //for BR-19200: /* 0x19 */ { REG_RXBW, RF_RXBW_DCCFREQ_010 | RF_RXBW_MANT_24 | RF_RXBW_EXP_3 }, - ///* 0x25 */ { REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_01 }, // DIO0 is the only IRQ we're using + /* 0x25 */ { REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_01 }, // DIO0 is the only IRQ we're using ///* 0x26 */ { REG_DIOMAPPING2, RF_DIOMAPPING2_CLKOUT_OFF }, // DIO5 ClkOut disable for power saving - ///* 0x28 */ { REG_IRQFLAGS2, RF_IRQFLAGS2_FIFOOVERRUN }, // writing to this bit ensures that the FIFO & status flags are reset + /* 0x28 */ { REG_IRQFLAGS2, RF_IRQFLAGS2_FIFOOVERRUN }, // writing to this bit ensures that the FIFO & status flags are reset /* 0x29 */ { REG_RSSITHRESH, 220 }, // must be set to dBm = (-Sensitivity / 2), default is 0xE4 = 228 so -114dBm /* 0x2D */ { REG_PREAMBLELSB, RF_PREAMBLESIZE_LSB_VALUE }, // default 3 preamble bytes 0xAAAAAA /* 0x2E */ { REG_SYNCCONFIG, RF_SYNC_ON | RF_SYNC_FIFOFILL_AUTO | RF_SYNC_SIZE_2 | RF_SYNC_TOL_0 }, @@ -119,18 +120,18 @@ // Setup the spi for 8 bit data : 1RW-bit 7 adressbit and 8 databit // second edge capture, with a 10MHz clock rate _spi.format(8,0); - _spi.frequency(1000000); + _spi.frequency(4000000); #define TIME_OUT 50 start_to = t.read_ms() ; - do writeReg(REG_SYNCVALUE1, 0xaa); while (readReg(REG_SYNCVALUE1) != 0xaa);// && t.read_ms()-start_to < TIME_OUT); + do writeReg(REG_SYNCVALUE1, 0xaa); while (readReg(REG_SYNCVALUE1) != 0xaa && t.read_ms()-start_to < TIME_OUT); if (t.read_ms()-start_to >= TIME_OUT) return (false); // Set time out start_to = t.read_ms() ; - do writeReg(REG_SYNCVALUE1, 0x55); while (readReg(REG_SYNCVALUE1) != 0x55);// && t.read_ms()-start_to < TIME_OUT); + do writeReg(REG_SYNCVALUE1, 0x55); while (readReg(REG_SYNCVALUE1) != 0x55 && t.read_ms()-start_to < TIME_OUT); if (t.read_ms()-start_to >= TIME_OUT) return (false); for (uint8_t i = 0; CONFIG[i][0] != 255; i++) writeReg(CONFIG[i][0], CONFIG[i][1]); @@ -139,14 +140,14 @@ // Disable it during initialization so we always start from a known state. encrypt(0); - //setHighPower(_isRFM69HW); // called regardless if it's a RFM69W or RFM69HW + setHighPower(_isRFM69HW); // called regardless if it's a RFM69W or RFM69HW setMode(RF69_MODE_STANDBY); // Set up interrupt handler start_to = t.read_ms() ; - while (((readReg(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00));// && t.read_ms()-start_to < TIME_OUT); // Wait for ModeReady + while (((readReg(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00) && t.read_ms()-start_to < TIME_OUT); // Wait for ModeReady if (t.read_ms()-start_to >= TIME_OUT) return (false); - //_interrupt.rise(this, &RFM69::isr0); + _interrupt.rise(this, &RFM69::isr0); _address = nodeID; return true; @@ -243,8 +244,8 @@ void RFM69::send(uint8_t toAddress, const void* buffer, uint8_t bufferSize, bool requestACK) { writeReg(REG_PACKETCONFIG2, (readReg(REG_PACKETCONFIG2) & 0xFB) | RF_PACKET2_RXRESTART); // avoid RX deadlocks - //uint32_t now = t.read_ms(); - //while (!canSend() && t.read_ms() - now < RF69_CSMA_LIMIT_MS) receiveDone(); + uint32_t now = t.read_ms(); + while (!canSend() && t.read_ms() - now < RF69_CSMA_LIMIT_MS) receiveDone(); sendFrame(toAddress, buffer, bufferSize, requestACK, false); } @@ -300,7 +301,7 @@ { setMode(RF69_MODE_STANDBY); // turn off receiver to prevent reception while filling fifo while ((readReg(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00); // wait for ModeReady - //writeReg(REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_00); // DIO0 is "Packet Sent" + writeReg(REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_00); // DIO0 is "Packet Sent" if (bufferSize > RF69_MAX_DATA_LEN) bufferSize = RF69_MAX_DATA_LEN; // control byte @@ -324,8 +325,8 @@ // no need to wait for transmit mode to be ready since its handled by the radio setMode(RF69_MODE_TX); uint32_t txStart = t.read_ms(); - //while (_interrupt == 0 && t.read_ms() - txStart < RF69_TX_LIMIT_MS); // wait for DIO0 to turn HIGH signalling transmission finish - while ((readReg(REG_IRQFLAGS2) & RF_IRQFLAGS2_PACKETSENT) == 0x00); // wait for ModeReady + while (_interrupt == 0 && t.read_ms() - txStart < RF69_TX_LIMIT_MS); // wait for DIO0 to turn HIGH signalling transmission finish + //while (readReg(REG_IRQFLAGS2) & RF_IRQFLAGS2_PACKETSENT == 0x00); // wait for ModeReady setMode(RF69_MODE_STANDBY); } // ON = disable filtering to capture all frames on network @@ -355,7 +356,6 @@ _slaveSelectPin = 1; } */ - // for debugging void RFM69::readAllRegs() { @@ -367,7 +367,11 @@ _spi.write(regAddr & 0x7F); // send address + r/w bit regVal = _spi.write(0); - pc.printf("%d - %d - %d\r\n", regAddr, regVal, regVal); + /* Serial.print(regAddr, HEX); + Serial.print(" - "); + Serial.print(regVal,HEX); + Serial.print(" - "); + Serial.println(regVal,BIN);*/ } unselect(); } @@ -446,11 +450,11 @@ writeReg(REG_PACKETCONFIG2, (readReg(REG_PACKETCONFIG2) & 0xFB) | RF_PACKET2_RXRESTART); // avoid RX deadlocks writeReg(REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_01); // set DIO0 to "PAYLOADREADY" in receive mode setMode(RF69_MODE_RX); - //_interrupt.enable_irq(); + _interrupt.enable_irq(); } bool RFM69::receiveDone() { - //_interrupt.disable_irq(); // re-enabled in unselect() via setMode() or via receiveBegin() + _interrupt.disable_irq(); // re-enabled in unselect() via setMode() or via receiveBegin() if (_mode == RF69_MODE_RX && PAYLOADLEN > 0) { setMode(RF69_MODE_STANDBY); // enables interrupts @@ -458,84 +462,13 @@ } else if (_mode == RF69_MODE_RX) // already in RX no payload yet { - //_interrupt.enable_irq(); // explicitly re-enable interrupts + _interrupt.enable_irq(); // explicitly re-enable interrupts return false; } receiveBegin(); return false; } -void RFM69::receive() { - unsigned long timeout = 10000; - char i; - - DATALEN = 0; - SENDERID = 0; - TARGETID = 0; - PAYLOADLEN = 0; - ACK_REQUESTED = 0; - ACK_RECEIVED = 0; - RSSI = 0; - for(i = 0; i < 63; i++) DATA[i] = 0; - - // Receive Data until timeout or valid data - while(1) { - if (readReg(REG_IRQFLAGS2) & RF_IRQFLAGS2_PAYLOADREADY) - writeReg(REG_PACKETCONFIG2, (readReg(REG_PACKETCONFIG2) & 0xFB) | RF_PACKET2_RXRESTART); // avoid RX deadlocks - ////writeReg(REG_DIOMAPPING1, RF_DIOMAPPING1_DIO0_01); //set DIO0 to "PAYLOADREADY" in receive mode - setMode(RF69_MODE_RX); - - //printf("Ya estoy en modo RX\n\r"); - - // Receive Data until timeout (aprox 2s) - while((readReg(REG_IRQFLAGS2) & RF_IRQFLAGS2_PAYLOADREADY) == 0) { - timeout--; - if(timeout == 0) { - //printf("Timeout!\n\r"); - setMode(RF69_MODE_STANDBY); - return; - } - //usleep(1); - } - - //printf("He recibido algo!!\n\r"); - - // Received any packet! - setMode(RF69_MODE_STANDBY); - select(); - - _spi.write(REG_FIFO & 0x7F); - PAYLOADLEN = _spi.write(0); - PAYLOADLEN = PAYLOADLEN > 66 ? 66 : PAYLOADLEN; // precaution - TARGETID = _spi.write(0); - - //printf("Payload length: %i\n\r", PAYLOADLEN); - //printf("Target id: %i\n\r", TARGETID); - - if(!(_promiscuousMode || TARGETID==_address || TARGETID==RF69_BROADCAST_ADDR) //match this node's address, or $ - || PAYLOADLEN < 3) { // address situation could receive packets that are malformed and don't fit this libraries extra fields - PAYLOADLEN = 0; - unselect(); - } else { - DATALEN = PAYLOADLEN - 3; - SENDERID = _spi.write(0); - uint8_t CTLbyte = _spi.write(0); - - ACK_RECEIVED = CTLbyte & 0x80; // extract ACK-received flag - ACK_REQUESTED = CTLbyte & 0x40; // extract ACK-requested flag - - for (uint8_t i = 0; i < DATALEN; i++) - { - DATA[i] = _spi.write(0); - } - if (DATALEN < RF69_MAX_DATA_LEN) DATA[DATALEN] = 0; // add null at end of string - unselect(); - setMode(RF69_MODE_RX); - } - RSSI = readRSSI(0); - } -} - // To enable encryption: radio.encrypt("ABCDEFGHIJKLMNOP"); // To disable encryption: radio.encrypt(null) or radio.encrypt(0) // KEY HAS TO BE 16 bytes !!! @@ -584,7 +517,7 @@ // select the transceiver void RFM69::select() { - //_interrupt.disable_irq(); // Disable Interrupts + _interrupt.disable_irq(); // Disable Interrupts /* // set RFM69 SPI settings SPI.setDataMode(SPI_MODE0); SPI.setBitOrder(MSBFIRST); @@ -595,5 +528,5 @@ // UNselect the transceiver chip void RFM69::unselect() { _slaveSelectPin = 1; - //_interrupt.enable_irq(); // Enable Interrupts + _interrupt.enable_irq(); // Enable Interrupts }