David Rimer
Port of RadioHead version 1.48 to mbed. It is a little messy and only works for SPI at this time.
Diff: RH_RF69.h
- Revision:
- 0:ab4e012489ef
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/RH_RF69.h Thu Oct 15 01:27:00 2015 +0000
@@ -0,0 +1,852 @@
+// RH_RF69.h
+// Author: Mike McCauley (mikem@airspayce.com)
+// Copyright (C) 2014 Mike McCauley
+// $Id: RH_RF69.h,v 1.29 2015/05/17 00:11:26 mikem Exp $
+//
+///
+
+
+#ifndef RH_RF69_h
+#define RH_RF69_h
+
+#include <RHGenericSPI.h>
+#include <RHSPIDriver.h>
+
+// The crystal oscillator frequency of the RF69 module
+#define RH_RF69_FXOSC 32000000.0
+
+// The Frequency Synthesizer step = RH_RF69_FXOSC / 2^^19
+#define RH_RF69_FSTEP (RH_RF69_FXOSC / 524288)
+
+// This is the maximum number of interrupts the driver can support
+// Most Arduinos can handle 2, Megas can handle more
+#define RH_RF69_NUM_INTERRUPTS 3
+
+// This is the bit in the SPI address that marks it as a write
+#define RH_RF69_SPI_WRITE_MASK 0x80
+
+// Max number of octets the RH_RF69 Rx and Tx FIFOs can hold
+#define RH_RF69_FIFO_SIZE 66
+
+// Maximum encryptable payload length the RF69 can support
+#define RH_RF69_MAX_ENCRYPTABLE_PAYLOAD_LEN 64
+
+// The length of the headers we add.
+// The headers are inside the RF69's payload and are therefore encrypted if encryption is enabled
+#define RH_RF69_HEADER_LEN 4
+
+// This is the maximum message length that can be supported by this driver. Limited by
+// the size of the FIFO, since we are unable to support on-the-fly filling and emptying
+// of the FIFO.
+// Can be pre-defined to a smaller size (to save SRAM) prior to including this header
+// Here we allow for 4 bytes of address and header and payload to be included in the 64 byte encryption limit.
+// the one byte payload length is not encrpyted
+#ifndef RH_RF69_MAX_MESSAGE_LEN
+#define RH_RF69_MAX_MESSAGE_LEN (RH_RF69_MAX_ENCRYPTABLE_PAYLOAD_LEN - RH_RF69_HEADER_LEN)
+#endif
+
+// Keep track of the mode the RF69 is in
+#define RH_RF69_MODE_IDLE 0
+#define RH_RF69_MODE_RX 1
+#define RH_RF69_MODE_TX 2
+
+// This is the default node address,
+#define RH_RF69_DEFAULT_NODE_ADDRESS 0
+
+// Register names
+#define RH_RF69_REG_00_FIFO 0x00
+#define RH_RF69_REG_01_OPMODE 0x01
+#define RH_RF69_REG_02_DATAMODUL 0x02
+#define RH_RF69_REG_03_BITRATEMSB 0x03
+#define RH_RF69_REG_04_BITRATELSB 0x04
+#define RH_RF69_REG_05_FDEVMSB 0x05
+#define RH_RF69_REG_06_FDEVLSB 0x06
+#define RH_RF69_REG_07_FRFMSB 0x07
+#define RH_RF69_REG_08_FRFMID 0x08
+#define RH_RF69_REG_09_FRFLSB 0x09
+#define RH_RF69_REG_0A_OSC1 0x0a
+#define RH_RF69_REG_0B_AFCCTRL 0x0b
+#define RH_RF69_REG_0C_RESERVED 0x0c
+#define RH_RF69_REG_0D_LISTEN1 0x0d
+#define RH_RF69_REG_0E_LISTEN2 0x0e
+#define RH_RF69_REG_0F_LISTEN3 0x0f
+#define RH_RF69_REG_10_VERSION 0x10
+#define RH_RF69_REG_11_PALEVEL 0x11
+#define RH_RF69_REG_12_PARAMP 0x12
+#define RH_RF69_REG_13_OCP 0x13
+#define RH_RF69_REG_14_RESERVED 0x14
+#define RH_RF69_REG_15_RESERVED 0x15
+#define RH_RF69_REG_16_RESERVED 0x16
+#define RH_RF69_REG_17_RESERVED 0x17
+#define RH_RF69_REG_18_LNA 0x18
+#define RH_RF69_REG_19_RXBW 0x19
+#define RH_RF69_REG_1A_AFCBW 0x1a
+#define RH_RF69_REG_1B_OOKPEAK 0x1b
+#define RH_RF69_REG_1C_OOKAVG 0x1c
+#define RH_RF69_REG_1D_OOKFIX 0x1d
+#define RH_RF69_REG_1E_AFCFEI 0x1e
+#define RH_RF69_REG_1F_AFCMSB 0x1f
+#define RH_RF69_REG_20_AFCLSB 0x20
+#define RH_RF69_REG_21_FEIMSB 0x21
+#define RH_RF69_REG_22_FEILSB 0x22
+#define RH_RF69_REG_23_RSSICONFIG 0x23
+#define RH_RF69_REG_24_RSSIVALUE 0x24
+#define RH_RF69_REG_25_DIOMAPPING1 0x25
+#define RH_RF69_REG_26_DIOMAPPING2 0x26
+#define RH_RF69_REG_27_IRQFLAGS1 0x27
+#define RH_RF69_REG_28_IRQFLAGS2 0x28
+#define RH_RF69_REG_29_RSSITHRESH 0x29
+#define RH_RF69_REG_2A_RXTIMEOUT1 0x2a
+#define RH_RF69_REG_2B_RXTIMEOUT2 0x2b
+#define RH_RF69_REG_2C_PREAMBLEMSB 0x2c
+#define RH_RF69_REG_2D_PREAMBLELSB 0x2d
+#define RH_RF69_REG_2E_SYNCCONFIG 0x2e
+#define RH_RF69_REG_2F_SYNCVALUE1 0x2f
+// another 7 sync word bytes follow, 30 through 36 inclusive
+#define RH_RF69_REG_37_PACKETCONFIG1 0x37
+#define RH_RF69_REG_38_PAYLOADLENGTH 0x38
+#define RH_RF69_REG_39_NODEADRS 0x39
+#define RH_RF69_REG_3A_BROADCASTADRS 0x3a
+#define RH_RF69_REG_3B_AUTOMODES 0x3b
+#define RH_RF69_REG_3C_FIFOTHRESH 0x3c
+#define RH_RF69_REG_3D_PACKETCONFIG2 0x3d
+#define RH_RF69_REG_3E_AESKEY1 0x3e
+// Another 15 AES key bytes follow
+#define RH_RF69_REG_4E_TEMP1 0x4e
+#define RH_RF69_REG_4F_TEMP2 0x4f
+#define RH_RF69_REG_58_TESTLNA 0x58
+#define RH_RF69_REG_5A_TESTPA1 0x5a
+#define RH_RF69_REG_5C_TESTPA2 0x5c
+#define RH_RF69_REG_6F_TESTDAGC 0x6f
+#define RH_RF69_REG_71_TESTAFC 0x71
+
+// These register masks etc are named wherever possible
+// corresponding to the bit and field names in the RFM69 Manual
+
+// RH_RF69_REG_01_OPMODE
+#define RH_RF69_OPMODE_SEQUENCEROFF 0x80
+#define RH_RF69_OPMODE_LISTENON 0x40
+#define RH_RF69_OPMODE_LISTENABORT 0x20
+#define RH_RF69_OPMODE_MODE 0x1c
+#define RH_RF69_OPMODE_MODE_SLEEP 0x00
+#define RH_RF69_OPMODE_MODE_STDBY 0x04
+#define RH_RF69_OPMODE_MODE_FS 0x08
+#define RH_RF69_OPMODE_MODE_TX 0x0c
+#define RH_RF69_OPMODE_MODE_RX 0x10
+
+// RH_RF69_REG_02_DATAMODUL
+#define RH_RF69_DATAMODUL_DATAMODE 0x60
+#define RH_RF69_DATAMODUL_DATAMODE_PACKET 0x00
+#define RH_RF69_DATAMODUL_DATAMODE_CONT_WITH_SYNC 0x40
+#define RH_RF69_DATAMODUL_DATAMODE_CONT_WITHOUT_SYNC 0x60
+#define RH_RF69_DATAMODUL_MODULATIONTYPE 0x18
+#define RH_RF69_DATAMODUL_MODULATIONTYPE_FSK 0x00
+#define RH_RF69_DATAMODUL_MODULATIONTYPE_OOK 0x08
+#define RH_RF69_DATAMODUL_MODULATIONSHAPING 0x03
+#define RH_RF69_DATAMODUL_MODULATIONSHAPING_FSK_NONE 0x00
+#define RH_RF69_DATAMODUL_MODULATIONSHAPING_FSK_BT1_0 0x01
+#define RH_RF69_DATAMODUL_MODULATIONSHAPING_FSK_BT0_5 0x02
+#define RH_RF69_DATAMODUL_MODULATIONSHAPING_FSK_BT0_3 0x03
+#define RH_RF69_DATAMODUL_MODULATIONSHAPING_OOK_NONE 0x00
+#define RH_RF69_DATAMODUL_MODULATIONSHAPING_OOK_BR 0x01
+#define RH_RF69_DATAMODUL_MODULATIONSHAPING_OOK_2BR 0x02
+
+// RH_RF69_REG_11_PALEVEL
+#define RH_RF69_PALEVEL_PA0ON 0x80
+#define RH_RF69_PALEVEL_PA1ON 0x40
+#define RH_RF69_PALEVEL_PA2ON 0x20
+#define RH_RF69_PALEVEL_OUTPUTPOWER 0x1f
+
+// RH_RF69_REG_23_RSSICONFIG
+#define RH_RF69_RSSICONFIG_RSSIDONE 0x02
+#define RH_RF69_RSSICONFIG_RSSISTART 0x01
+
+// RH_RF69_REG_25_DIOMAPPING1
+#define RH_RF69_DIOMAPPING1_DIO0MAPPING 0xc0
+#define RH_RF69_DIOMAPPING1_DIO0MAPPING_00 0x00
+#define RH_RF69_DIOMAPPING1_DIO0MAPPING_01 0x40
+#define RH_RF69_DIOMAPPING1_DIO0MAPPING_10 0x80
+#define RH_RF69_DIOMAPPING1_DIO0MAPPING_11 0xc0
+
+#define RH_RF69_DIOMAPPING1_DIO1MAPPING 0x30
+#define RH_RF69_DIOMAPPING1_DIO1MAPPING_00 0x00
+#define RH_RF69_DIOMAPPING1_DIO1MAPPING_01 0x10
+#define RH_RF69_DIOMAPPING1_DIO1MAPPING_10 0x20
+#define RH_RF69_DIOMAPPING1_DIO1MAPPING_11 0x30
+
+#define RH_RF69_DIOMAPPING1_DIO2MAPPING 0x0c
+#define RH_RF69_DIOMAPPING1_DIO2MAPPING_00 0x00
+#define RH_RF69_DIOMAPPING1_DIO2MAPPING_01 0x04
+#define RH_RF69_DIOMAPPING1_DIO2MAPPING_10 0x08
+#define RH_RF69_DIOMAPPING1_DIO2MAPPING_11 0x0c
+
+#define RH_RF69_DIOMAPPING1_DIO3MAPPING 0x03
+#define RH_RF69_DIOMAPPING1_DIO3MAPPING_00 0x00
+#define RH_RF69_DIOMAPPING1_DIO3MAPPING_01 0x01
+#define RH_RF69_DIOMAPPING1_DIO3MAPPING_10 0x02
+#define RH_RF69_DIOMAPPING1_DIO3MAPPING_11 0x03
+
+// RH_RF69_REG_26_DIOMAPPING2
+#define RH_RF69_DIOMAPPING2_DIO4MAPPING 0xc0
+#define RH_RF69_DIOMAPPING2_DIO4MAPPING_00 0x00
+#define RH_RF69_DIOMAPPING2_DIO4MAPPING_01 0x40
+#define RH_RF69_DIOMAPPING2_DIO4MAPPING_10 0x80
+#define RH_RF69_DIOMAPPING2_DIO4MAPPING_11 0xc0
+
+#define RH_RF69_DIOMAPPING2_DIO5MAPPING 0x30
+#define RH_RF69_DIOMAPPING2_DIO5MAPPING_00 0x00
+#define RH_RF69_DIOMAPPING2_DIO5MAPPING_01 0x10
+#define RH_RF69_DIOMAPPING2_DIO5MAPPING_10 0x20
+#define RH_RF69_DIOMAPPING2_DIO5MAPPING_11 0x30
+
+#define RH_RF69_DIOMAPPING2_CLKOUT 0x07
+#define RH_RF69_DIOMAPPING2_CLKOUT_FXOSC_ 0x00
+#define RH_RF69_DIOMAPPING2_CLKOUT_FXOSC_2 0x01
+#define RH_RF69_DIOMAPPING2_CLKOUT_FXOSC_4 0x02
+#define RH_RF69_DIOMAPPING2_CLKOUT_FXOSC_8 0x03
+#define RH_RF69_DIOMAPPING2_CLKOUT_FXOSC_16 0x04
+#define RH_RF69_DIOMAPPING2_CLKOUT_FXOSC_32 0x05
+#define RH_RF69_DIOMAPPING2_CLKOUT_FXOSC_RC 0x06
+#define RH_RF69_DIOMAPPING2_CLKOUT_FXOSC_OFF 0x07
+
+// RH_RF69_REG_27_IRQFLAGS1
+#define RH_RF69_IRQFLAGS1_MODEREADY 0x80
+#define RH_RF69_IRQFLAGS1_RXREADY 0x40
+#define RH_RF69_IRQFLAGS1_TXREADY 0x20
+#define RH_RF69_IRQFLAGS1_PLLLOCK 0x10
+#define RH_RF69_IRQFLAGS1_RSSI 0x08
+#define RH_RF69_IRQFLAGS1_TIMEOUT 0x04
+#define RH_RF69_IRQFLAGS1_AUTOMODE 0x02
+#define RH_RF69_IRQFLAGS1_SYNADDRESSMATCH 0x01
+
+// RH_RF69_REG_28_IRQFLAGS2
+#define RH_RF69_IRQFLAGS2_FIFOFULL 0x80
+#define RH_RF69_IRQFLAGS2_FIFONOTEMPTY 0x40
+#define RH_RF69_IRQFLAGS2_FIFOLEVEL 0x20
+#define RH_RF69_IRQFLAGS2_FIFOOVERRUN 0x10
+#define RH_RF69_IRQFLAGS2_PACKETSENT 0x08
+#define RH_RF69_IRQFLAGS2_PAYLOADREADY 0x04
+#define RH_RF69_IRQFLAGS2_CRCOK 0x02
+
+// RH_RF69_REG_2E_SYNCCONFIG
+#define RH_RF69_SYNCCONFIG_SYNCON 0x80
+#define RH_RF69_SYNCCONFIG_FIFOFILLCONDITION_MANUAL 0x40
+#define RH_RF69_SYNCCONFIG_SYNCSIZE 0x38
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_1 0x00
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_2 0x08
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_3 0x10
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_4 0x18
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_5 0x20
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_6 0x28
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_7 0x30
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_8 0x38
+#define RH_RF69_SYNCCONFIG_SYNCSIZE_SYNCTOL 0x07
+
+// RH_RF69_REG_37_PACKETCONFIG1
+#define RH_RF69_PACKETCONFIG1_PACKETFORMAT_VARIABLE 0x80
+#define RH_RF69_PACKETCONFIG1_DCFREE 0x60
+#define RH_RF69_PACKETCONFIG1_DCFREE_NONE 0x00
+#define RH_RF69_PACKETCONFIG1_DCFREE_MANCHESTER 0x20
+#define RH_RF69_PACKETCONFIG1_DCFREE_WHITENING 0x40
+#define RH_RF69_PACKETCONFIG1_DCFREE_RESERVED 0x60
+#define RH_RF69_PACKETCONFIG1_CRC_ON 0x10
+#define RH_RF69_PACKETCONFIG1_CRCAUTOCLEAROFF 0x08
+#define RH_RF69_PACKETCONFIG1_ADDRESSFILTERING 0x06
+#define RH_RF69_PACKETCONFIG1_ADDRESSFILTERING_NONE 0x00
+#define RH_RF69_PACKETCONFIG1_ADDRESSFILTERING_NODE 0x02
+#define RH_RF69_PACKETCONFIG1_ADDRESSFILTERING_NODE_BC 0x04
+#define RH_RF69_PACKETCONFIG1_ADDRESSFILTERING_RESERVED 0x06
+
+// RH_RF69_REG_3C_FIFOTHRESH
+#define RH_RF69_FIFOTHRESH_TXSTARTCONDITION_NOTEMPTY 0x80
+#define RH_RF69_FIFOTHRESH_FIFOTHRESHOLD 0x7f
+
+// RH_RF69_REG_3D_PACKETCONFIG2
+#define RH_RF69_PACKETCONFIG2_INTERPACKETRXDELAY 0xf0
+#define RH_RF69_PACKETCONFIG2_RESTARTRX 0x04
+#define RH_RF69_PACKETCONFIG2_AUTORXRESTARTON 0x02
+#define RH_RF69_PACKETCONFIG2_AESON 0x01
+
+// RH_RF69_REG_4E_TEMP1
+#define RH_RF69_TEMP1_TEMPMEASSTART 0x08
+#define RH_RF69_TEMP1_TEMPMEASRUNNING 0x04
+
+// RH_RF69_REG_5A_TESTPA1
+#define RH_RF69_TESTPA1_NORMAL 0x55
+#define RH_RF69_TESTPA1_BOOST 0x5d
+
+// RH_RF69_REG_5C_TESTPA2
+#define RH_RF69_TESTPA2_NORMAL 0x70
+#define RH_RF69_TESTPA2_BOOST 0x7c
+
+// RH_RF69_REG_6F_TESTDAGC
+#define RH_RF69_TESTDAGC_CONTINUOUSDAGC_NORMAL 0x00
+#define RH_RF69_TESTDAGC_CONTINUOUSDAGC_IMPROVED_LOWBETAON 0x20
+#define RH_RF69_TESTDAGC_CONTINUOUSDAGC_IMPROVED_LOWBETAOFF 0x30
+
+// Define this to include Serial printing in diagnostic routines
+#define RH_RF69_HAVE_SERIAL
+
+
+/////////////////////////////////////////////////////////////////////
+/// \class RH_RF69 RH_RF69.h <RH_RF69.h>
+/// \brief Driver to send and receive unaddressed, unreliable datagrams via an RF69 and compatible radio transceiver.
+///
+/// Works with
+/// - the excellent Moteino and Moteino-USB
+/// boards from LowPowerLab http://lowpowerlab.com/moteino/
+/// - compatible chips and modules such as RFM69W, RFM69HW, RFM69CW, RFM69HCW (Semtech SX1231, SX1231H),
+/// - RFM69 modules from http://www.hoperfusa.com such as http://www.hoperfusa.com/details.jsp?pid=145
+/// - Anarduino MiniWireless -CW and -HW boards http://www.anarduino.com/miniwireless/ including
+/// the marvellous high powered MinWireless-HW (with 20dBm output for excellent range)
+///
+/// \par Overview
+///
+/// This class provides basic functions for sending and receiving unaddressed,
+/// unreliable datagrams of arbitrary length to 64 octets per packet.
+///
+/// Manager classes may use this class to implement reliable, addressed datagrams and streams,
+/// mesh routers, repeaters, translators etc.
+///
+/// Naturally, for any 2 radios to communicate that must be configured to use the same frequency and
+/// modulation scheme.
+///
+/// This Driver provides an object-oriented interface for sending and receiving data messages with Hope-RF
+/// RF69B and compatible radio modules, such as the RFM69 module.
+///
+/// The Hope-RF (http://www.hoperf.com) RF69 is a low-cost ISM transceiver
+/// chip. It supports FSK, GFSK, OOK over a wide range of frequencies and
+/// programmable data rates. It also suports AES encryption of up to 64 octets
+/// of payload It is available prepackaged on modules such as the RFM69W. And
+/// such modules can be prepacked on processor boards such as the Moteino from
+/// LowPowerLabs (which is what we used to develop the RH_RF69 driver)
+///
+/// This Driver provides functions for sending and receiving messages of up
+/// to 60 octets on any frequency supported by the RF69, in a range of
+/// predefined data rates and frequency deviations. Frequency can be set with
+/// 61Hz precision to any frequency from 240.0MHz to 960.0MHz. Caution: most modules only support a more limited
+/// range of frequencies due to antenna tuning.
+///
+/// Up to 2 RF69B modules can be connected to an Arduino (3 on a Mega),
+/// permitting the construction of translators and frequency changers, etc.
+///
+/// The following modulation types are suppported with a range of modem configurations for
+/// common data rates and frequency deviations:
+/// - GFSK Gaussian Frequency Shift Keying
+/// - FSK Frequency Shift Keying
+///
+/// Support for other RF69 features such as on-chip temperature measurement,
+/// transmitter power control etc is also provided.
+///
+/// Tested on USB-Moteino with arduino-1.0.5
+/// on OpenSuSE 13.1
+///
+/// \par Packet Format
+///
+/// All messages sent and received by this RH_RF69 Driver conform to this packet format:
+///
+/// - 4 octets PREAMBLE
+/// - 2 octets SYNC 0x2d, 0xd4 (configurable, so you can use this as a network filter)
+/// - 1 octet RH_RF69 payload length
+/// - 4 octets HEADER: (TO, FROM, ID, FLAGS)
+/// - 0 to 60 octets DATA
+/// - 2 octets CRC computed with CRC16(IBM), computed on HEADER and DATA
+///
+/// For technical reasons, the message format is not protocol compatible with the
+/// 'HopeRF Radio Transceiver Message Library for Arduino'
+/// http://www.airspayce.com/mikem/arduino/HopeRF from the same author. Nor is
+/// it compatible with messages sent by 'Virtual Wire'
+/// http://www.airspayce.com/mikem/arduino/VirtualWire.pdf also from the same
+/// author. Nor is it compatible with messages sent by 'RF22'
+/// http://www.airspayce.com/mikem/arduino/RF22 also from the same author.
+///
+/// \par Connecting RFM-69 to Arduino
+///
+/// We tested with Moteino, which is an Arduino Uno compatible with the RFM69W
+/// module on-board. Therefore it needs no connections other than the USB
+/// programming connection and an antenna to make it work.
+///
+/// If you have a bare RFM69W that you want to connect to an Arduino, you
+/// might use these connections (untested): CAUTION: you must use a 3.3V type
+/// Arduino, otherwise you will also need voltage level shifters between the
+/// Arduino and the RFM69. CAUTION, you must also ensure you connect an
+/// antenna
+///
+/// \code
+/// Arduino RFM69W
+/// GND----------GND (ground in)
+/// 3V3----------3.3V (3.3V in)
+/// interrupt 0 pin D2-----------DIO0 (interrupt request out)
+/// SS pin D10----------NSS (chip select in)
+/// SCK pin D13----------SCK (SPI clock in)
+/// MOSI pin D11----------MOSI (SPI Data in)
+/// MISO pin D12----------MISO (SPI Data out)
+/// \endcode
+///
+/// With these connections, you can then use the default constructor RH_RF69().
+/// You can override the default settings for the SS pin and the interrupt in
+/// the RH_RF69 constructor if you wish to connect the slave select SS to other
+/// than the normal one for your Arduino (D10 for Diecimila, Uno etc and D53
+/// for Mega) or the interrupt request to other than pin D2 (Caution,
+/// different processors have different constraints as to the pins available
+/// for interrupts).
+///
+/// If you have a Teensy 3.1 and a compatible RFM69 breakout board, you will need to
+/// construct the RH_RF69 instance like this:
+/// \code
+/// RH_RF69 driver(15, 16);
+/// \endcode
+///
+/// If you have a MoteinoMEGA https://lowpowerlab.com/shop/moteinomega
+/// with RFM69 on board, you dont need to make any wiring connections
+/// (the RFM69 module is soldered onto the MotienoMEGA), but you must initialise the RH_RF69
+/// constructor like this:
+/// \code
+/// RH_RF69 driver(4, 2);
+/// \endcode
+/// Make sure you have the MoteinoMEGA core installed in your Arduino hardware folder as described in the
+/// documentation for the MoteinoMEGA.
+///
+/// It is possible to have 2 or more radios connected to one Arduino, provided
+/// each radio has its own SS and interrupt line (SCK, SDI and SDO are common
+/// to all radios)
+///
+/// Caution: on some Arduinos such as the Mega 2560, if you set the slave
+/// select pin to be other than the usual SS pin (D53 on Mega 2560), you may
+/// need to set the usual SS pin to be an output to force the Arduino into SPI
+/// master mode.
+///
+/// Caution: Power supply requirements of the RF69 module may be relevant in some circumstances:
+/// RF69 modules are capable of pulling 45mA+ at full power, where Arduino's 3.3V line can
+/// give 50mA. You may need to make provision for alternate power supply for
+/// the RF69, especially if you wish to use full transmit power, and/or you have
+/// other shields demanding power. Inadequate power for the RF69 is likely to cause symptoms such as:
+/// -reset's/bootups terminate with "init failed" messages
+/// -random termination of communication after 5-30 packets sent/received
+/// -"fake ok" state, where initialization passes fluently, but communication doesn't happen
+/// -shields hang Arduino boards, especially during the flashing
+/// \par Interrupts
+///
+/// The RH_RF69 driver uses interrupts to react to events in the RF69 module,
+/// such as the reception of a new packet, or the completion of transmission
+/// of a packet. The RH_RF69 driver interrupt service routine reads status from
+/// and writes data to the the RF69 module via the SPI interface. It is very
+/// important therefore, that if you are using the RH_RF69 driver with another
+/// SPI based deviced, that you disable interrupts while you transfer data to
+/// and from that other device. Use cli() to disable interrupts and sei() to
+/// reenable them.
+///
+/// \par Memory
+///
+/// The RH_RF69 driver requires non-trivial amounts of memory. The sample
+/// programs above all compile to about 8kbytes each, which will fit in the
+/// flash proram memory of most Arduinos. However, the RAM requirements are
+/// more critical. Therefore, you should be vary sparing with RAM use in
+/// programs that use the RH_RF69 driver.
+///
+/// It is often hard to accurately identify when you are hitting RAM limits on Arduino.
+/// The symptoms can include:
+/// - Mysterious crashes and restarts
+/// - Changes in behaviour when seemingly unrelated changes are made (such as adding print() statements)
+/// - Hanging
+/// - Output from Serial.print() not appearing
+///
+/// \par Automatic Frequency Control (AFC)
+///
+/// The RF69 module is configured by the RH_RF69 driver to always use AFC.
+///
+/// \par Transmitter Power
+///
+/// You can control the transmitter power on the RF69 transceiver
+/// with the RH_RF69::setTxPower() function. The argument can be any of
+/// -18 to +13 (for RF69W) or -14 to 20 (for RF69HW)
+/// The default is 13. Eg:
+/// \code
+/// driver.setTxPower(-5);
+/// \endcode
+///
+/// We have made some actual power measurements against
+/// programmed power for Moteino (with RF69W)
+/// - Moteino (with RF69W), USB power
+/// - 10cm RG58C/U soldered direct to RFM69 module ANT and GND
+/// - bnc connecteor
+/// - 12dB attenuator
+/// - BNC-SMA adapter
+/// - MiniKits AD8307 HF/VHF Power Head (calibrated against Rohde&Schwartz 806.2020 test set)
+/// - Tektronix TDS220 scope to measure the Vout from power head
+/// \code
+/// Program power Measured Power
+/// dBm dBm
+/// -18 -17
+/// -16 -16
+/// -14 -14
+/// -12 -12
+/// -10 -9
+/// -8 -7
+/// -6 -4
+/// -4 -3
+/// -2 -2
+/// 0 0.2
+/// 2 3
+/// 4 5
+/// 6 7
+/// 8 10
+/// 10 13
+/// 12 14
+/// 13 15
+/// 14 -51
+/// 20 -51
+/// \endcode
+/// We have also made some actual power measurements against
+/// programmed power for Anarduino MiniWireless with RFM69-HW
+/// Anarduino MiniWireless (with RFM69-HW), USB power
+/// - 10cm RG58C/U soldered direct to RFM69 module ANT and GND
+/// - bnc connecteor
+/// - 2x12dB attenuators
+/// - BNC-SMA adapter
+/// - MiniKits AD8307 HF/VHF Power Head (calibrated against Rohde&Schwartz 806.2020 test set)
+/// - Tektronix TDS220 scope to measure the Vout from power head
+/// \code
+/// Program power Measured Power
+/// dBm dBm
+/// -18 no measurable output
+/// 0 no measurable output
+/// 13 no measurable output
+/// 14 11
+/// 15 12
+/// 16 12.4
+/// 17 14
+/// 18 15
+/// 19 15.8
+/// 20 17
+/// \endcode
+/// (Caution: we dont claim laboratory accuracy for these measurements)
+/// You would not expect to get anywhere near these powers to air with a simple 1/4 wavelength wire antenna.
+/// Caution: although the RFM69 appears to have a PC antenna on board, you will get much better power and range even
+/// with just a 1/4 wave wire antenna.
+///
+/// \par Performance
+///
+/// Some simple speed performance tests have been conducted.
+/// In general packet transmission rate will be limited by the modulation scheme.
+/// Also, if your code does any slow operations like Serial printing it will also limit performance.
+/// We disabled any printing in the tests below.
+/// We tested with RH_RF69::GFSK_Rb250Fd250, which is probably the fastest scheme available.
+/// We tested with a 13 octet message length, over a very short distance of 10cm.
+///
+/// Transmission (no reply) tests with modulation RH_RF69::GFSK_Rb250Fd250 and a
+/// 13 octet message show about 152 messages per second transmitted and received.
+///
+/// Transmit-and-wait-for-a-reply tests with modulation RH_RF69::GFSK_Rb250Fd250 and a
+/// 13 octet message (send and receive) show about 68 round trips per second.
+///
+class RH_RF69 : public RHSPIDriver
+{
+public:
+
+ /// \brief Defines register values for a set of modem configuration registers
+ ///
+ /// Defines register values for a set of modem configuration registers
+ /// that can be passed to setModemRegisters() if none of the choices in
+ /// ModemConfigChoice suit your need setModemRegisters() writes the
+ /// register values from this structure to the appropriate RF69 registers
+ /// to set the desired modulation type, data rate and deviation/bandwidth.
+ typedef struct
+ {
+ uint8_t reg_02; ///< Value for register RH_RF69_REG_02_DATAMODUL
+ uint8_t reg_03; ///< Value for register RH_RF69_REG_03_BITRATEMSB
+ uint8_t reg_04; ///< Value for register RH_RF69_REG_04_BITRATELSB
+ uint8_t reg_05; ///< Value for register RH_RF69_REG_05_FDEVMSB
+ uint8_t reg_06; ///< Value for register RH_RF69_REG_06_FDEVLSB
+ uint8_t reg_19; ///< Value for register RH_RF69_REG_19_RXBW
+ uint8_t reg_1a; ///< Value for register RH_RF69_REG_1A_AFCBW
+ uint8_t reg_37; ///< Value for register RH_RF69_REG_37_PACKETCONFIG1
+ } ModemConfig;
+
+ /// Choices for setModemConfig() for a selected subset of common
+ /// modulation types, and data rates. If you need another configuration,
+ /// use the register calculator. and call setModemRegisters() with your
+ /// desired settings.
+ /// These are indexes into MODEM_CONFIG_TABLE. We strongly recommend you use these symbolic
+ /// definitions and not their integer equivalents: its possible that new values will be
+ /// introduced in later versions (though we will try to avoid it).
+ /// CAUTION: some of these configurations do not work corectly and are marked as such.
+ typedef enum
+ {
+ FSK_Rb2Fd5 = 0, ///< FSK, Whitening, Rb = 2kbs, Fd = 5kHz
+ FSK_Rb2_4Fd4_8, ///< FSK, Whitening, Rb = 2.4kbs, Fd = 4.8kHz
+ FSK_Rb4_8Fd9_6, ///< FSK, Whitening, Rb = 4.8kbs, Fd = 9.6kHz
+ FSK_Rb9_6Fd19_2, ///< FSK, Whitening, Rb = 9.6kbs, Fd = 19.2kHz
+ FSK_Rb19_2Fd38_4, ///< FSK, Whitening, Rb = 19.2kbs, Fd = 38.4kHz
+ FSK_Rb38_4Fd76_8, ///< FSK, Whitening, Rb = 38.4kbs, Fd = 76.8kHz
+ FSK_Rb57_6Fd120, ///< FSK, Whitening, Rb = 57.6kbs, Fd = 120kHz
+ FSK_Rb125Fd125, ///< FSK, Whitening, Rb = 125kbs, Fd = 125kHz
+ FSK_Rb250Fd250, ///< FSK, Whitening, Rb = 250kbs, Fd = 250kHz
+ FSK_Rb55555Fd50, ///< FSK, Whitening, Rb = 55555kbs,Fd = 50kHz for RFM69 lib compatibility
+
+ GFSK_Rb2Fd5, ///< GFSK, Whitening, Rb = 2kbs, Fd = 5kHz
+ GFSK_Rb2_4Fd4_8, ///< GFSK, Whitening, Rb = 2.4kbs, Fd = 4.8kHz
+ GFSK_Rb4_8Fd9_6, ///< GFSK, Whitening, Rb = 4.8kbs, Fd = 9.6kHz
+ GFSK_Rb9_6Fd19_2, ///< GFSK, Whitening, Rb = 9.6kbs, Fd = 19.2kHz
+ GFSK_Rb19_2Fd38_4, ///< GFSK, Whitening, Rb = 19.2kbs, Fd = 38.4kHz
+ GFSK_Rb38_4Fd76_8, ///< GFSK, Whitening, Rb = 38.4kbs, Fd = 76.8kHz
+ GFSK_Rb57_6Fd120, ///< GFSK, Whitening, Rb = 57.6kbs, Fd = 120kHz
+ GFSK_Rb125Fd125, ///< GFSK, Whitening, Rb = 125kbs, Fd = 125kHz
+ GFSK_Rb250Fd250, ///< GFSK, Whitening, Rb = 250kbs, Fd = 250kHz
+ GFSK_Rb55555Fd50, ///< GFSK, Whitening, Rb = 55555kbs,Fd = 50kHz
+
+ OOK_Rb1Bw1, ///< OOK, Whitening, Rb = 1kbs, Rx Bandwidth = 1kHz.
+ OOK_Rb1_2Bw75, ///< OOK, Whitening, Rb = 1.2kbs, Rx Bandwidth = 75kHz.
+ OOK_Rb2_4Bw4_8, ///< OOK, Whitening, Rb = 2.4kbs, Rx Bandwidth = 4.8kHz.
+ OOK_Rb4_8Bw9_6, ///< OOK, Whitening, Rb = 4.8kbs, Rx Bandwidth = 9.6kHz.
+ OOK_Rb9_6Bw19_2, ///< OOK, Whitening, Rb = 9.6kbs, Rx Bandwidth = 19.2kHz.
+ OOK_Rb19_2Bw38_4, ///< OOK, Whitening, Rb = 19.2kbs, Rx Bandwidth = 38.4kHz.
+ OOK_Rb32Bw64, ///< OOK, Whitening, Rb = 32kbs, Rx Bandwidth = 64kHz.
+
+// Test,
+ } ModemConfigChoice;
+
+ /// Constructor. You can have multiple instances, but each instance must have its own
+ /// interrupt and slave select pin. After constructing, you must call init() to initialise the interface
+ /// and the radio module. A maximum of 3 instances can co-exist on one processor, provided there are sufficient
+ /// distinct interrupt lines, one for each instance.
+ /// \param[in] slaveSelectPin the Arduino pin number of the output to use to select the RF69 before
+ /// accessing it. Defaults to the normal SS pin for your Arduino (D10 for Diecimila, Uno etc, D53 for Mega, D10 for Maple)
+ /// \param[in] interruptPin The interrupt Pin number that is connected to the RF69 DIO0 interrupt line.
+ /// Defaults to pin 2.
+ /// Caution: You must specify an interrupt capable pin.
+ /// On many Arduino boards, there are limitations as to which pins may be used as interrupts.
+ /// On Leonardo pins 0, 1, 2 or 3. On Mega2560 pins 2, 3, 18, 19, 20, 21. On Due and Teensy, any digital pin.
+ /// On other Arduinos pins 2 or 3.
+ /// See http://arduino.cc/en/Reference/attachInterrupt for more details.
+ /// On Chipkit Uno32, pins 38, 2, 7, 8, 35.
+ /// On other boards, any digital pin may be used.
+ /// \param[in] spi Pointer to the SPI interface object to use.
+ /// Defaults to the standard Arduino hardware SPI interface
+ RH_RF69(PINS slaveSelectPin, PINS interruptPin, RHGenericSPI& spi = hardware_spi);
+
+ /// Initialises this instance and the radio module connected to it.
+ /// The following steps are taken:
+ /// - Initialise the slave select pin and the SPI interface library
+ /// - Checks the connected RF69 module can be communicated
+ /// - Attaches an interrupt handler
+ /// - Configures the RF69 module
+ /// - Sets the frequency to 434.0 MHz
+ /// - Sets the modem data rate to FSK_Rb2Fd5
+ /// \return true if everything was successful
+ bool init();
+
+ /// Reads the on-chip temperature sensor.
+ /// The RF69 must be in Idle mode (= RF69 Standby) to measure temperature.
+ /// The measurement is uncalibrated and without calibration, you can expect it to be far from
+ /// correct.
+ /// \return The measured temperature, in degrees C from -40 to 85 (uncalibrated)
+ int8_t temperatureRead();
+
+ /// Sets the transmitter and receiver
+ /// centre frequency
+ /// \param[in] centre Frequency in MHz. 240.0 to 960.0. Caution, RF69 comes in several
+ /// different frequency ranges, and setting a frequency outside that range of your radio will probably not work
+ /// \param[in] afcPullInRange Not used
+ /// \return true if the selected frquency centre is within range
+ bool setFrequency(float centre, float afcPullInRange = 0.05);
+
+ /// Reads and returns the current RSSI value.
+ /// Causes the current signal strength to be measured and returned
+ /// If you want to find the RSSI
+ /// of the last received message, use lastRssi() instead.
+ /// \return The current RSSI value on units of 0.5dB.
+ int8_t rssiRead();
+
+ /// Sets the parameters for the RF69 OPMODE.
+ /// This is a low level device access function, and should not normally ned to be used by user code.
+ /// Instead can use stModeRx(), setModeTx(), setModeIdle()
+ /// \param[in] mode RF69 OPMODE to set, one of RH_RF69_OPMODE_MODE_*.
+ void setOpMode(uint8_t mode);
+
+ /// If current mode is Rx or Tx changes it to Idle. If the transmitter or receiver is running,
+ /// disables them.
+ void setModeIdle();
+
+ /// If current mode is Tx or Idle, changes it to Rx.
+ /// Starts the receiver in the RF69.
+ void setModeRx();
+
+ /// If current mode is Rx or Idle, changes it to Rx. F
+ /// Starts the transmitter in the RF69.
+ void setModeTx();
+
+ /// Sets the transmitter power output level.
+ /// Be a good neighbour and set the lowest power level you need.
+ /// Caution: legal power limits may apply in certain countries.
+ /// After init(), the power will be set to 13dBm.
+ /// \param[in] power Transmitter power level in dBm. For RF69W, valid values are from -18 to +13
+ /// (higher power settings disable the transmitter).
+ /// For RF69HW, valid values are from +14 to +20. Caution: at +20dBm, duty cycle is limited to 1% and a
+ /// maximum VSWR of 3:1 at the antenna port.
+ void setTxPower(int8_t power);
+
+ /// Sets all the registers required to configure the data modem in the RF69, including the data rate,
+ /// bandwidths etc. You can use this to configure the modem with custom configurations if none of the
+ /// canned configurations in ModemConfigChoice suit you.
+ /// \param[in] config A ModemConfig structure containing values for the modem configuration registers.
+ void setModemRegisters(const ModemConfig* config);
+
+ /// Select one of the predefined modem configurations. If you need a modem configuration not provided
+ /// here, use setModemRegisters() with your own ModemConfig. The default after init() is RH_RF69::GFSK_Rb250Fd250.
+ /// \param[in] index The configuration choice.
+ /// \return true if index is a valid choice.
+ bool setModemConfig(ModemConfigChoice index);
+
+ /// Starts the receiver and checks whether a received message is available.
+ /// This can be called multiple times in a timeout loop
+ /// \return true if a complete, valid message has been received and is able to be retrieved by
+ /// recv()
+ bool available();
+
+ /// Turns the receiver on if it not already on.
+ /// If there is a valid message available, copy it to buf and return true
+ /// else return false.
+ /// If a message is copied, *len is set to the length (Caution, 0 length messages are permitted).
+ /// You should be sure to call this function frequently enough to not miss any messages
+ /// It is recommended that you call it in your main loop.
+ /// \param[in] buf Location to copy the received message
+ /// \param[in,out] len Pointer to available space in buf. Set to the actual number of octets copied.
+ /// \return true if a valid message was copied to buf
+ bool recv(uint8_t* buf, uint8_t* len);
+
+ /// Waits until any previous transmit packet is finished being transmitted with waitPacketSent().
+ /// Then loads a message into the transmitter and starts the transmitter. Note that a message length
+ /// of 0 is NOT permitted.
+ /// \param[in] data Array of data to be sent
+ /// \param[in] len Number of bytes of data to send (> 0)
+ /// \return true if the message length was valid and it was correctly queued for transmit
+ bool send(const uint8_t* data, uint8_t len);
+
+ /// Sets the length of the preamble
+ /// in bytes.
+ /// Caution: this should be set to the same
+ /// value on all nodes in your network. Default is 4.
+ /// Sets the message preamble length in REG_0?_PREAMBLE?SB
+ /// \param[in] bytes Preamble length in bytes.
+ void setPreambleLength(uint16_t bytes);
+
+ /// Sets the sync words for transmit and receive
+ /// Caution: SyncWords should be set to the same
+ /// value on all nodes in your network. Nodes with different SyncWords set will never receive
+ /// each others messages, so different SyncWords can be used to isolate different
+ /// networks from each other. Default is { 0x2d, 0xd4 }.
+ /// \param[in] syncWords Array of sync words, 1 to 4 octets long. NULL if no sync words to be used.
+ /// \param[in] len Number of sync words to set, 1 to 4. 0 if no sync words to be used.
+ void setSyncWords(const uint8_t* syncWords = NULL, uint8_t len = 0);
+
+ /// Enables AES encryption and sets the AES encryption key, used
+ /// to encrypt and decrypt all messages. The default is disabled.
+ /// \param[in] key The key to use. Must be 16 bytes long. The same key must be installed
+ /// in other instances of RF69, otherwise communications will not work correctly. If key is NULL,
+ /// encryption is disabled.
+ void setEncryptionKey(uint8_t* key = NULL);
+
+ /// Returns the time in millis since the most recent preamble was received, and when the most recent
+ /// RSSI measurement was made.
+ uint32_t getLastPreambleTime();
+
+ /// The maximum message length supported by this driver
+ /// \return The maximum message length supported by this driver
+ uint8_t maxMessageLength();
+
+ /// Prints the value of a single register
+ /// to the Serial device if RH_HAVE_SERIAL is defined for the current platform
+ /// For debugging/testing only
+ /// \return true if successful
+ bool printRegister(uint8_t reg);
+
+ /// Prints the value of all the RF69 registers
+ /// to the Serial device if RH_HAVE_SERIAL is defined for the current platform
+ /// For debugging/testing only
+ /// \return true if successful
+ bool printRegisters();
+
+ /// Sets the radio operating mode for the case when the driver is idle (ie not
+ /// transmitting or receiving), allowing you to control the idle mode power requirements
+ /// at the expense of slower transitions to transmit and receive modes.
+ /// By default, the idle mode is RH_RF69_OPMODE_MODE_STDBY,
+ /// but eg setIdleMode(RH_RF69_OPMODE_MODE_SLEEP) will provide a much lower
+ /// idle current but slower transitions. Call this function after init().
+ /// \param[in] idleMode The chip operating mode to use when the driver is idle. One of RH_RF69_OPMODE_*
+ void setIdleMode(uint8_t idleMode);
+
+ /// Sets the radio into low-power sleep mode.
+ /// If successful, the transport will stay in sleep mode until woken by
+ /// changing mode it idle, transmit or receive (eg by calling send(), recv(), available() etc)
+ /// Caution: there is a time penalty as the radio takes a finite time to wake from sleep mode.
+ /// \return true if sleep mode was successfully entered.
+ virtual bool sleep();
+
+protected:
+ /// This is a low level function to handle the interrupts for one instance of RF69.
+ /// Called automatically by isr*()
+ /// Should not need to be called by user code.
+ void handleInterrupt();
+
+ /// Low level function to read the FIFO and put the received data into the receive buffer
+ /// Should not need to be called by user code.
+ void readFifo();
+
+protected:
+ /// Low level interrupt service routine for RF69 connected to interrupt 0
+ static void isr0();
+
+ /// Low level interrupt service routine for RF69 connected to interrupt 1
+ static void isr1();
+
+ /// Low level interrupt service routine for RF69 connected to interrupt 1
+ static void isr2();
+
+ /// Array of instances connected to interrupts 0 and 1
+ static RH_RF69* _deviceForInterrupt[];
+
+ /// Index of next interrupt number to use in _deviceForInterrupt
+ static uint8_t _interruptCount;
+
+#if (RH_PLATFORM == RH_PLATFORM_MBED)
+ /// The configured interrupt pin connected to this instance
+ InterruptIn _interruptPin;
+#else
+ /// The configured interrupt pin connected to this instance
+ uint8_t _interruptPin;
+#endif
+
+ /// The index into _deviceForInterrupt[] for this device (if an interrupt is already allocated)
+ /// else 0xff
+ uint8_t _myInterruptIndex;
+
+ /// The radio OP mode to use when mode is RHModeIdle
+ uint8_t _idleMode;
+
+ /// The reported device type
+ uint8_t _deviceType;
+
+ /// The selected output power in dBm
+ int8_t _power;
+
+ /// The message length in _buf
+ volatile uint8_t _bufLen;
+
+ /// Array of octets of teh last received message or the next to transmit message
+ uint8_t _buf[RH_RF69_MAX_MESSAGE_LEN];
+
+ /// True when there is a valid message in the Rx buffer
+ volatile bool _rxBufValid;
+
+ /// Time in millis since the last preamble was received (and the last time the RSSI was measured)
+ uint32_t _lastPreambleTime;
+};
+
+/// @example rf69_client.pde
+/// @example rf69_server.pde
+/// @example rf69_reliable_datagram_client.pde
+/// @example rf69_reliable_datagram_server.pde
+
+
+#endif