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This commit is contained in:
Erik Tylek Kettenburg
2015-06-23 12:42:35 -07:00
parent bc55c9bb45
commit 6ca6b114d5
3581 changed files with 93 additions and 51 deletions
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digistump-sam/libraries/RF24/librf24-rpi/librf24-bcm/Makefile Normal file
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#############################################################################
#
# Makefile for librf24-bcm on Raspberry Pi
#
# License: GPL (General Public License)
# Author: Charles-Henri Hallard
# Date: 2013/03/13
#
# Description:
# ------------
# use make all and mak install to install the library
# You can change the install directory by editing the LIBDIR line
#
PREFIX=/usr/local
# Library parameters
# where to put the lib
LIBDIR=$(PREFIX)/lib
# lib name
LIB=librf24-bcm
# shared library name
LIBNAME=$(LIB).so.1.0
# The recommended compiler flags for the Raspberry Pi
CCFLAGS=-Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s
# make all
# reinstall the library after each recompilation
all: librf24-bcm install
# Make the library
librf24-bcm: RF24.o bcm2835.o
g++ -shared -Wl,-soname,$@.so.1 ${CCFLAGS} -o ${LIBNAME} $^
# Library parts
RF24.o: RF24.cpp
g++ -Wall -fPIC ${CCFLAGS} -c $^
bcm2835.o: bcm2835.c
gcc -Wall -fPIC ${CCFLAGS} -c $^
# clear build files
clean:
rm -rf *.o ${LIB}.*
# Install the library to LIBPATH
install:
@echo "[Install]"
@if ( test ! -d $(PREFIX)/lib ) ; then mkdir -p $(PREFIX)/lib ; fi
#@install -m 0755 ${LIB}.a ${LIBDIR}
@install -m 0755 ${LIBNAME} ${LIBDIR}
@ln -sf ${LIBDIR}/${LIBNAME} ${LIBDIR}/${LIB}.so.1
@ln -sf ${LIBDIR}/${LIBNAME} ${LIBDIR}/${LIB}.so
@ldconfig

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digistump-sam/libraries/RF24/librf24-rpi/librf24-bcm/RF24.cpp Normal file
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digistump-sam/libraries/RF24/librf24-rpi/librf24-bcm/RF24.h Normal file
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/*
Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
03/17/2013 : Charles-Henri Hallard (http://hallard.me)
Modified to use with Arduipi board http://hallard.me/arduipi
Modified to use the great bcm2835 library for I/O and SPI
*/
/**
* @file RF24.h
*
* Class declaration for RF24 and helper enums
*/
#ifndef __RF24_H__
#define __RF24_H__
#include "RF24_config.h"
#include "./bcm2835.h"
/**
* Power Amplifier level.
*
* For use with setPALevel()
*/
typedef enum { RF24_PA_MIN = 0,RF24_PA_LOW, RF24_PA_HIGH, RF24_PA_MAX, RF24_PA_ERROR } rf24_pa_dbm_e ;
/**
* Data rate. How fast data moves through the air.
*
* For use with setDataRate()
*/
typedef enum { RF24_1MBPS = 0, RF24_2MBPS, RF24_250KBPS } rf24_datarate_e;
/**
* CRC Length. How big (if any) of a CRC is included.
*
* For use with setCRCLength()
*/
typedef enum { RF24_CRC_DISABLED = 0, RF24_CRC_8, RF24_CRC_16 } rf24_crclength_e;
/**
* Driver for nRF24L01(+) 2.4GHz Wireless Transceiver
*/
class RF24
{
private:
uint8_t ce_pin; /**< "Chip Enable" pin, activates the RX or TX role */
uint8_t csn_pin; /**< SPI Chip select */
uint16_t spi_speed; /**< SPI Bus Speed */
bool wide_band; /* 2Mbs data rate in use? */
bool p_variant; /* False for RF24L01 and true for RF24L01P */
uint8_t payload_size; /**< Fixed size of payloads */
bool ack_payload_available; /**< Whether there is an ack payload waiting */
bool dynamic_payloads_enabled; /**< Whether dynamic payloads are enabled. */
uint8_t ack_payload_length; /**< Dynamic size of pending ack payload. */
uint64_t pipe0_reading_address; /**< Last address set on pipe 0 for reading. */
//uint32_t spispeed;
uint8_t debug ; /* Debug flag */
uint8_t spi_rxbuff[32] ; //SPI receive buffer (payload max 32 bytes)
uint8_t spi_txbuff[32+1] ; //SPI transmit buffer (payload max 32 bytes + 1 byte for the command)
protected:
/**
* @name Low-level internal interface.
*
* Protected methods that address the chip directly. Regular users cannot
* ever call these. They are documented for completeness and for developers who
* may want to extend this class.
*/
/**@{*/
/**
* Read a chunk of data in from a register
*
* @param reg Which register. Use constants from nRF24L01.h
* @param buf Where to put the data
* @param len How many bytes of data to transfer
* @return Current value of status register
*/
uint8_t read_register(uint8_t reg, uint8_t* buf, uint8_t len);
/**
* Read single byte from a register
*
* @param reg Which register. Use constants from nRF24L01.h
* @return Current value of register @p reg
*/
uint8_t read_register(uint8_t reg);
/**
* Write a chunk of data to a register
*
* @param reg Which register. Use constants from nRF24L01.h
* @param buf Where to get the data
* @param len How many bytes of data to transfer
* @return Current value of status register
*/
uint8_t write_register(uint8_t reg, const uint8_t* buf, uint8_t len);
/**
* Write a single byte to a register
*
* @param reg Which register. Use constants from nRF24L01.h
* @param value The new value to write
* @return Current value of status register
*/
uint8_t write_register(uint8_t reg, uint8_t value);
/**
* Write the transmit payload
*
* The size of data written is the fixed payload size, see getPayloadSize()
*
* @param buf Where to get the data
* @param len Number of bytes to be sent
* @return Current value of status register
*/
uint8_t write_payload(const void* buf, uint8_t len);
/**
* Read the receive payload
*
* The size of data read is the fixed payload size, see getPayloadSize()
*
* @param buf Where to put the data
* @param len Maximum number of bytes to read
* @return Current value of status register
*/
uint8_t read_payload(void* buf, uint8_t len);
/**
* Empty the receive buffer
*
* @return Current value of status register
*/
uint8_t flush_rx(void);
/**
* Empty the transmit buffer
*
* @return Current value of status register
*/
uint8_t flush_tx(void);
/**
* Retrieve the current status of the chip
*
* @return Current value of status register
*/
uint8_t get_status(void);
/**
* Decode and print the given status to stdout
*
* @param status Status value to print
*
* @warning Does nothing if stdout is not defined. See fdevopen in stdio.h
*/
void print_status(uint8_t status);
/**
* Decode and print the given 'observe_tx' value to stdout
*
* @param value The observe_tx value to print
*
* @warning Does nothing if stdout is not defined. See fdevopen in stdio.h
*/
void print_observe_tx(uint8_t value);
/**
* Print the name and value of an 8-bit register to stdout
*
* Optionally it can print some quantity of successive
* registers on the same line. This is useful for printing a group
* of related registers on one line.
*
* @param name Name of the register
* @param reg Which register. Use constants from nRF24L01.h
* @param qty How many successive registers to print
*/
void print_byte_register(const char* name, uint8_t reg, uint8_t qty = 1);
/**
* Print the name and value of a 40-bit address register to stdout
*
* Optionally it can print some quantity of successive
* registers on the same line. This is useful for printing a group
* of related registers on one line.
*
* @param name Name of the register
* @param reg Which register. Use constants from nRF24L01.h
* @param qty How many successive registers to print
*/
void print_address_register(const char* name, uint8_t reg, uint8_t qty = 1);
/**
* Turn on or off the special features of the chip
*
* The chip has certain 'features' which are only available when the 'features'
* are enabled. See the datasheet for details.
*/
void toggle_features(void);
/**@}*/
public:
/**
* @name Primary public interface
*
* These are the main methods you need to operate the chip
*/
/**@{*/
/**
* Constructor
*
* Creates a new instance of this driver. Before using, you create an instance
* and send in the unique pins that this chip is connected to.
*
* @param _cepin The pin attached to Chip Enable on the RF module
* @param _cspin The pin attached to Chip Select
*/
RF24(uint8_t _cepin, uint8_t _cspin);
RF24(uint8_t _cepin, uint8_t _cspin, uint32_t spispeed );
/**
* Begin operation of the chip
*
* Call this in setup(), before calling any other methods.
*/
bool begin(void);
/**
* Start listening on the pipes opened for reading.
*
* Be sure to call openReadingPipe() first. Do not call write() while
* in this mode, without first calling stopListening(). Call
* isAvailable() to check for incoming traffic, and read() to get it.
*/
void startListening(void);
/**
* Stop listening for incoming messages
*
* Do this before calling write().
*/
void stopListening(void);
/**
* Write to the open writing pipe
*
* Be sure to call openWritingPipe() first to set the destination
* of where to write to.
*
* This blocks until the message is successfully acknowledged by
* the receiver or the timeout/retransmit maxima are reached. In
* the current configuration, the max delay here is 60ms.
*
* The maximum size of data written is the fixed payload size, see
* getPayloadSize(). However, you can write less, and the remainder
* will just be filled with zeroes.
*
* @param buf Pointer to the data to be sent
* @param len Number of bytes to be sent
* @return True if the payload was delivered successfully false if not
*/
bool write( const void* buf, uint8_t len );
/**
* Test whether there are bytes available to be read
*
* @return True if there is a payload available, false if none is
*/
bool available(void);
/**
* Read the payload
*
* Return the last payload received
*
* The size of data read is the fixed payload size, see getPayloadSize()
*
* @note I specifically chose 'void*' as a data type to make it easier
* for beginners to use. No casting needed.
*
* @param buf Pointer to a buffer where the data should be written
* @param len Maximum number of bytes to read into the buffer
* @return True if the payload was delivered successfully false if not
*/
bool read( void* buf, uint8_t len );
/**
* Open a pipe for writing
*
* Only one pipe can be open at once, but you can change the pipe
* you'll listen to. Do not call this while actively listening.
* Remember to stopListening() first.
*
* Addresses are 40-bit hex values, e.g.:
*
* @code
* openWritingPipe(0xF0F0F0F0F0);
* @endcode
*
* @param address The 40-bit address of the pipe to open. This can be
* any value whatsoever, as long as you are the only one writing to it
* and only one other radio is listening to it. Coordinate these pipe
* addresses amongst nodes on the network.
*/
void openWritingPipe(uint64_t address);
/**
* Open a pipe for reading
*
* Up to 6 pipes can be open for reading at once. Open all the
* reading pipes, and then call startListening().
*
* @see openWritingPipe
*
* @warning Pipes 1-5 should share the first 32 bits.
* Only the least significant byte should be unique, e.g.
* @code
* openReadingPipe(1,0xF0F0F0F0AA);
* openReadingPipe(2,0xF0F0F0F066);
* @endcode
*
* @warning Pipe 0 is also used by the writing pipe. So if you open
* pipe 0 for reading, and then startListening(), it will overwrite the
* writing pipe. Ergo, do an openWritingPipe() again before write().
*
* @todo Enforce the restriction that pipes 1-5 must share the top 32 bits
*
* @param number Which pipe# to open, 0-5.
* @param address The 40-bit address of the pipe to open.
*/
void openReadingPipe(uint8_t number, uint64_t address);
/**@}*/
/**
* @name Optional Configurators
*
* Methods you can use to get or set the configuration of the chip.
* None are required. Calling begin() sets up a reasonable set of
* defaults.
*/
/**@{*/
/**
* Set the number and delay of retries upon failed submit
*
* @param delay How long to wait between each retry, in multiples of 250us,
* max is 15. 0 means 250us, 15 means 4000us.
* @param count How many retries before giving up, max 15
*/
void setRetries(uint8_t delay, uint8_t count);
/**
* Set RF communication channel
*
* @param channel Which RF channel to communicate on, 0-127
*/
void setChannel(uint8_t channel);
/**
* Set Static Payload Size
*
* This implementation uses a pre-stablished fixed payload size for all
* transmissions. If this method is never called, the driver will always
* transmit the maximum payload size (32 bytes), no matter how much
* was sent to write().
*
* @todo Implement variable-sized payloads feature
*
* @param size The number of bytes in the payload
*/
void setPayloadSize(uint8_t size);
/**
* Get Static Payload Size
*
* @see setPayloadSize()
*
* @return The number of bytes in the payload
*/
uint8_t getPayloadSize(void);
/**
* Get Dynamic Payload Size
*
* For dynamic payloads, this pulls the size of the payload off
* the chip
*
* @return Payload length of last-received dynamic payload
*/
uint8_t getDynamicPayloadSize(void);
/**
* Enable custom payloads on the acknowledge packets
*
* Ack payloads are a handy way to return data back to senders without
* manually changing the radio modes on both units.
*
* @see examples/pingpair_pl/pingpair_pl.pde
*/
void enableAckPayload(void);
/**
* Enable dynamically-sized payloads
*
* This way you don't always have to send large packets just to send them
* once in a while. This enables dynamic payloads on ALL pipes.
*
* @see examples/pingpair_pl/pingpair_dyn.pde
*/
void enableDynamicPayloads(void);
/**
* Determine whether the hardware is an nRF24L01+ or not.
*
* @return true if the hardware is nRF24L01+ (or compatible) and false
* if its not.
*/
bool isPVariant(void) ;
/**
* Enable or disable auto-acknowlede packets
*
* This is enabled by default, so it's only needed if you want to turn
* it off for some reason.
*
* @param enable Whether to enable (true) or disable (false) auto-acks
*/
void setAutoAck(bool enable);
/**
* Enable or disable auto-acknowlede packets on a per pipeline basis.
*
* AA is enabled by default, so it's only needed if you want to turn
* it off/on for some reason on a per pipeline basis.
*
* @param pipe Which pipeline to modify
* @param enable Whether to enable (true) or disable (false) auto-acks
*/
void setAutoAck( uint8_t pipe, bool enable ) ;
/**
* Set Power Amplifier (PA) level to one of four levels.
* Relative mnemonics have been used to allow for future PA level
* changes. According to 6.5 of the nRF24L01+ specification sheet,
* they translate to: RF24_PA_MIN=-18dBm, RF24_PA_LOW=-12dBm,
* RF24_PA_MED=-6dBM, and RF24_PA_HIGH=0dBm.
*
* @param level Desired PA level.
*/
void setPALevel( rf24_pa_dbm_e level ) ;
/**
* Fetches the current PA level.
*
* @return Returns a value from the rf24_pa_dbm_e enum describing
* the current PA setting. Please remember, all values represented
* by the enum mnemonics are negative dBm. See setPALevel for
* return value descriptions.
*/
rf24_pa_dbm_e getPALevel( void ) ;
/**
* Set the transmission data rate
*
* @warning setting RF24_250KBPS will fail for non-plus units
*
* @param speed RF24_250KBPS for 250kbs, RF24_1MBPS for 1Mbps, or RF24_2MBPS for 2Mbps
* @return true if the change was successful
*/
bool setDataRate(rf24_datarate_e speed);
/**
* Fetches the transmission data rate
*
* @return Returns the hardware's currently configured datarate. The value
* is one of 250kbs, RF24_1MBPS for 1Mbps, or RF24_2MBPS, as defined in the
* rf24_datarate_e enum.
*/
rf24_datarate_e getDataRate( void ) ;
/**
* Set the CRC length
*
* @param length RF24_CRC_8 for 8-bit or RF24_CRC_16 for 16-bit
*/
void setCRCLength(rf24_crclength_e length);
/**
* Get the CRC length
*
* @return RF24_DISABLED if disabled or RF24_CRC_8 for 8-bit or RF24_CRC_16 for 16-bit
*/
rf24_crclength_e getCRCLength(void);
/**
* Disable CRC validation
*
*/
void disableCRC( void ) ;
/**@}*/
/**
* @name Advanced Operation
*
* Methods you can use to drive the chip in more advanced ways
*/
/**@{*/
/**
* Print a giant block of debugging information to stdout
*
* @warning Does nothing if stdout is not defined. See fdevopen in stdio.h
*/
void printDetails(void);
/**
* Enter low-power mode
*
* To return to normal power mode, either write() some data or
* startListening, or powerUp().
*/
void powerDown(void);
/**
* Leave low-power mode - making radio more responsive
*
* To return to low power mode, call powerDown().
*/
void powerUp(void) ;
/**
* Test whether there are bytes available to be read
*
* Use this version to discover on which pipe the message
* arrived.
*
* @param[out] pipe_num Which pipe has the payload available
* @return True if there is a payload available, false if none is
*/
bool available(uint8_t* pipe_num);
/**
* Non-blocking write to the open writing pipe
*
* Just like write(), but it returns immediately. To find out what happened
* to the send, catch the IRQ and then call whatHappened().
*
* @see write()
* @see whatHappened()
*
* @param buf Pointer to the data to be sent
* @param len Number of bytes to be sent
* @return True if the payload was delivered successfully false if not
*/
void startWrite( const void* buf, uint8_t len );
/**
* Write an ack payload for the specified pipe
*
* The next time a message is received on @p pipe, the data in @p buf will
* be sent back in the acknowledgement.
*
* @warning According to the data sheet, only three of these can be pending
* at any time. I have not tested this.
*
* @param pipe Which pipe# (typically 1-5) will get this response.
* @param buf Pointer to data that is sent
* @param len Length of the data to send, up to 32 bytes max. Not affected
* by the static payload set by setPayloadSize().
*/
void writeAckPayload(uint8_t pipe, const void* buf, uint8_t len);
/**
* Determine if an ack payload was received in the most recent call to
* write().
*
* Call read() to retrieve the ack payload.
*
* @warning Calling this function clears the internal flag which indicates
* a payload is available. If it returns true, you must read the packet
* out as the very next interaction with the radio, or the results are
* undefined.
*
* @return True if an ack payload is available.
*/
bool isAckPayloadAvailable(void);
/**
* Call this when you get an interrupt to find out why
*
* Tells you what caused the interrupt, and clears the state of
* interrupts.
*
* @param[out] tx_ok The send was successful (TX_DS)
* @param[out] tx_fail The send failed, too many retries (MAX_RT)
* @param[out] rx_ready There is a message waiting to be read (RX_DS)
*/
void whatHappened(bool& tx_ok,bool& tx_fail,bool& rx_ready);
/**
* Test whether there was a carrier on the line for the
* previous listening period.
*
* Useful to check for interference on the current channel.
*
* @return true if was carrier, false if not
*/
bool testCarrier(void);
/**
* Test whether a signal (carrier or otherwise) greater than
* or equal to -64dBm is present on the channel. Valid only
* on nRF24L01P (+) hardware. On nRF24L01, use testCarrier().
*
* Useful to check for interference on the current channel and
* channel hopping strategies.
*
* @return true if signal => -64dBm, false if not
*/
bool testRPD(void) ;
/**@}*/
};
/**
* @example GettingStarted.pde
*
* This is an example which corresponds to my "Getting Started" blog post:
* <a style="text-align:center" href="http://maniacbug.wordpress.com/2011/11/02/getting-started-rf24/">Getting Started with nRF24L01+ on Arduino</a>.
*
* It is an example of how to use the RF24 class. Write this sketch to two
* different nodes. Put one of the nodes into 'transmit' mode by connecting
* with the serial monitor and sending a 'T'. The ping node sends the current
* time to the pong node, which responds by sending the value back. The ping
* node can then see how long the whole cycle took.
*/
/**
* @example nordic_fob.pde
*
* This is an example of how to use the RF24 class to receive signals from the
* Sparkfun Nordic FOB. See http://www.sparkfun.com/products/8602 .
* Thanks to Kirk Mower for providing test hardware.
*/
/**
* @example led_remote.pde
*
* This is an example of how to use the RF24 class to control a remote
* bank of LED's using buttons on a remote control.
*
* Every time the buttons change on the remote, the entire state of
* buttons is send to the led board, which displays the state.
*/
/**
* @example pingpair.pde
*
* This is an example of how to use the RF24 class. Write this sketch to two
* different nodes, connect the role_pin to ground on one. The ping node sends
* the current time to the pong node, which responds by sending the value back.
* The ping node can then see how long the whole cycle took.
*/
/**
* @example pingpair_maple.pde
*
* This is an example of how to use the RF24 class on the Maple. For a more
* detailed explanation, see my blog post:
* <a href="http://maniacbug.wordpress.com/2011/12/14/nrf24l01-running-on-maple-3/">nRF24L01+ Running on Maple</a>
*
* It will communicate well to an Arduino-based unit as well, so it's not for only Maple-to-Maple communication.
*
* Write this sketch to two different nodes,
* connect the role_pin to ground on one. The ping node sends the current time to the pong node,
* which responds by sending the value back. The ping node can then see how long the whole cycle
* took.
*/
/**
* @example starping.pde
*
* This sketch is a more complex example of using the RF24 library for Arduino.
* Deploy this on up to six nodes. Set one as the 'pong receiver' by tying the
* role_pin low, and the others will be 'ping transmit' units. The ping units
* unit will send out the value of millis() once a second. The pong unit will
* respond back with a copy of the value. Each ping unit can get that response
* back, and determine how long the whole cycle took.
*
* This example requires a bit more complexity to determine which unit is which.
* The pong receiver is identified by having its role_pin tied to ground.
* The ping senders are further differentiated by a byte in eeprom.
*/
/**
* @example pingpair_pl.pde
*
* This is an example of how to do two-way communication without changing
* transmit/receive modes. Here, a payload is set to the transmitter within
* the Ack packet of each transmission. Note that the payload is set BEFORE
* the sender's message arrives.
*/
/**
* @example pingpair_irq.pde
*
* This is an example of how to user interrupts to interact with the radio.
* It builds on the pingpair_pl example, and uses ack payloads.
*/
/**
* @example pingpair_sleepy.pde
*
* This is an example of how to use the RF24 class to create a battery-
* efficient system. It is just like the pingpair.pde example, but the
* ping node powers down the radio and sleeps the MCU after every
* ping/pong cycle.
*/
/**
* @example scanner.pde
*
* Example to detect interference on the various channels available.
* This is a good diagnostic tool to check whether you're picking a
* good channel for your application.
*
* Inspired by cpixip.
* See http://arduino.cc/forum/index.php/topic,54795.0.html
*/
/**
* @mainpage Driver for nRF24L01(+) 2.4GHz Wireless Transceiver
*
* @section Goals Design Goals
*
* This library is designed to be...
* @li Maximally compliant with the intended operation of the chip
* @li Easy for beginners to use
* @li Consumed with a public interface that's similiar to other Arduino standard libraries
*
* @section News News
*
* NOW COMPATIBLE WITH ARDUINO 1.0 - The 'master' branch and all examples work with both Arduino 1.0 and earlier versions.
* Please <a href="https://github.com/maniacbug/RF24/issues/new">open an issue</a> if you find any problems using it with any version of Arduino.
*
* NOW COMPATIBLE WITH MAPLE - RF24 has been tested with the
* <a href="http://leaflabs.com/store/#Maple-Native">Maple Native</a>,
* and should work with any Maple board. See the pingpair_maple example.
* Note that only the pingpair_maple example has been tested on Maple, although
* the others can certainly be adapted.
*
* @section Useful Useful References
*
* Please refer to:
*
* @li <a href="http://maniacbug.github.com/RF24/">Documentation Main Page</a>
* @li <a href="http://maniacbug.github.com/RF24/classRF24.html">RF24 Class Documentation</a>
* @li <a href="https://github.com/maniacbug/RF24/">Source Code</a>
* @li <a href="https://github.com/maniacbug/RF24/archives/master">Downloads Page</a>
* @li <a href="http://www.nordicsemi.com/files/Product/data_sheet/nRF24L01_Product_Specification_v2_0.pdf">Chip Datasheet</a>
*
* This chip uses the SPI bus, plus two chip control pins. Remember that pin 10 must still remain an output, or
* the SPI hardware will go into 'slave' mode.
*
* @section More More Information
*
* @subpage FAQ
*
* @section Projects Projects
*
* Stuff I have built with RF24
*
* <img src="http://farm7.staticflickr.com/6044/6307669179_a8d19298a6_m.jpg" width="240" height="160" alt="RF24 Getting Started - Finished Product">
*
* <a style="text-align:center" href="http://maniacbug.wordpress.com/2011/11/02/getting-started-rf24/">Getting Started with nRF24L01+ on Arduino</a>
*
* <img src="http://farm8.staticflickr.com/7159/6645514331_38eb2bdeaa_m.jpg" width="240" height="160" alt="Nordic FOB and nRF24L01+">
*
* <a style="text-align:center" href="http://maniacbug.wordpress.com/2012/01/08/nordic-fob/">Using the Sparkfun Nordic FOB</a>
*
* <img src="http://farm7.staticflickr.com/6097/6224308836_b9b3b421a3_m.jpg" width="240" height="160" alt="RF Duinode V3 (2V4)">
*
* <a href="http://maniacbug.wordpress.com/2011/10/19/sensor-node/">Low-Power Wireless Sensor Node</a>
*
* <img src="http://farm8.staticflickr.com/7012/6489477865_b56edb629b_m.jpg" width="240" height="161" alt="nRF24L01+ connected to Leaf Labs Maple Native">
*
* <a href="http://maniacbug.wordpress.com/2011/12/14/nrf24l01-running-on-maple-3/">nRF24L01+ Running on Maple</a>
*/
#endif // __RF24_H__
// vim:ai:cin:sts=2 sw=2 ft=cpp

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/*
Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
03/17/2013 : Charles-Henri Hallard (http://hallard.me)
Modified to use with Arduipi board http://hallard.me/arduipi
Modified to use the great bcm2835 library for I/O and SPI
*/
#ifndef __RF24_CONFIG_H__
#define __RF24_CONFIG_H__
#include <stdint.h>
#include <stdio.h>
#include <time.h>
#include <string.h>
#include <sys/time.h>
#include <stddef.h>
#include "bcm2835.h"
// GCC a Arduino Missing
#define max(a,b) (a>b?a:b)
#define min(a,b) (a<b?a:b)
#define _BV(x) (1<<(x))
#define pgm_read_word(p) (*(p))
#define pgm_read_byte(p) (*(p))
#endif // __RF24_CONFIG_H__
// vim:ai:cin:sts=2 sw=2 ft=cpp

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#############################################################################
#
# Makefile for librf24 examples on Raspberry Pi
#
# License: GPL (General Public License)
# Author: gnulnulf <arco@appeltaart.mine.nu>
# Date: 2013/02/07 (version 1.0)
#
# Description:
# ------------
# use make all and make install to install the examples
# You can change the install directory by editing the prefix line
#
prefix := /usr/local
# The recommended compiler flags for the Raspberry Pi
CCFLAGS=-Ofast -mfpu=vfp -mfloat-abi=hard -march=armv6zk -mtune=arm1176jzf-s
#CCFLAGS=
# define all programs
#PROGRAMS = scanner pingtest pongtest
PROGRAMS = rpi-hub scanner pingtest pongtest
SOURCES = ${PROGRAMS:=.cpp}
all: ${PROGRAMS}
${PROGRAMS}: ${SOURCES}
g++ ${CCFLAGS} -Wall -I../ -lrf24-bcm $@.cpp -o $@
clean:
rm -rf $(PROGRAMS)
install: all
test -d $(prefix) || mkdir $(prefix)
test -d $(prefix)/bin || mkdir $(prefix)/bin
for prog in $(PROGRAMS); do \
install -m 0755 $$prog $(prefix)/bin; \
done
.PHONY: install

230
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/*
Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
03/17/2013 : Charles-Henri Hallard (http://hallard.me)
Modified to use with Arduipi board http://hallard.me/arduipi
Changed to use modified bcm2835 and RF24 library
*/
/**
* Example RF Radio Ping Pair
*
* This is an example of how to use the RF24 class. Write this sketch to two different nodes,
* connect the role_pin to ground on one. The ping node sends the current time to the pong node,
* which responds by sending the value back. The ping node can then see how long the whole cycle
* took.
*/
#include <cstdlib>
#include <iostream>
#include "./RF24.h"
//
// Hardware configuration
//
// CE Pin, CSN Pin, SPI Speed
// Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
//RF24 radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ);
// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
//RF24 radio(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ);
// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_8MHZ);
// sets the role of this unit in hardware. Connect to GND to be the 'pong' receiver
// Leave open to be the 'ping' transmitter
const int role_pin = 7;
//
// Topology
//
// Radio pipe addresses for the 2 nodes to communicate.
const uint64_t pipes[2] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0D2LL };
//
// Role management
//
// Set up role. This sketch uses the same software for all the nodes
// in this system. Doing so greatly simplifies testing. The hardware itself specifies
// which node it is.
//
// This is done through the role_pin
//
// The various roles supported by this sketch
typedef enum { role_ping_out = 1, role_pong_back } role_e;
// The debug-friendly names of those roles
const char* role_friendly_name[] = { "invalid", "Ping out", "Pong back"};
// The role of the current running sketch
role_e role;
int main(int argc, char** argv)
{
//
// Role
//
// set up the role
role = role_ping_out;
//
// Print preamble:
//
printf("RF24/examples/pingtest/\n");
printf("ROLE: %s\n",role_friendly_name[role]);
//
// Setup and configure rf radio
//
radio.begin();
// optionally, increase the delay between retries & # of retries
radio.setRetries(15,15);
// optionally, reduce the payload size. seems to
// improve reliability
// radio.setPayloadSize(8);
radio.setChannel(0x4c);
radio.setPALevel(RF24_PA_LOW);
//
// Open pipes to other nodes for communication
//
// This simple sketch opens two pipes for these two nodes to communicate
// back and forth.
// Open 'our' pipe for writing
// Open the 'other' pipe for reading, in position #1 (we can have up to 5 pipes open for reading)
if ( role == role_ping_out )
{
radio.openWritingPipe(pipes[0]);
radio.openReadingPipe(1,pipes[1]);
}
else
{
radio.openWritingPipe(pipes[1]);
radio.openReadingPipe(1,pipes[0]);
}
//
// Start listening
//
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
//
// Ping out role. Repeatedly send the current time
//
// forever loop
while (1)
{
if (role == role_ping_out)
{
// First, stop listening so we can talk.
radio.stopListening();
// Take the time, and send it. This will block until complete
unsigned long time = millis();
printf("Now sending %lu...",time);
bool ok = radio.write( &time, sizeof(unsigned long) );
if (ok)
printf("ok...");
else
printf("failed.\n");
// Now, continue listening
radio.startListening();
// Wait here until we get a response, or timeout (250ms)
unsigned long started_waiting_at = millis();
bool timeout = false;
while ( ! radio.available() && ! timeout ) {
// by bcatalin » Thu Feb 14, 2013 11:26 am
delay(5); //add a small delay to let radio.available to check payload
if (millis() - started_waiting_at > 200 )
timeout = true;
}
// Describe the results
if ( timeout )
{
printf("Failed, response timed out.\n");
}
else
{
// Grab the response, compare, and send to debugging spew
unsigned long got_time;
radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got response %lu, round-trip delay: %lu\n",got_time,millis()-got_time);
}
// Try again 1s later
// delay(1000);
sleep(1);
}
//
// Pong back role. Receive each packet, dump it out, and send it back
//
if ( role == role_pong_back )
{
// if there is data ready
//printf("Check available...\n");
if ( radio.available() )
{
// Dump the payloads until we've gotten everything
unsigned long got_time;
bool done = false;
while (!done)
{
// Fetch the payload, and see if this was the last one.
done = radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got payload(%d) %lu...\n",sizeof(unsigned long), got_time);
// Delay just a little bit to let the other unit
// make the transition to receiver
delay(20);
}
// First, stop listening so we can talk
radio.stopListening();
// Send the final one back.
radio.write( &got_time, sizeof(unsigned long) );
// Now, resume listening so we catch the next packets.
radio.startListening();
}
}
} // forever loop
return 0;
}
// vim:cin:ai:sts=2 sw=2 ft=cpp

229
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/*
Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
03/17/2013 : Charles-Henri Hallard (http://hallard.me)
Modified to use with Arduipi board http://hallard.me/arduipi
Changed to use modified bcm2835 and RF24 library
*/
/**
* Example RF Radio Ping Pair
*
* This is an example of how to use the RF24 class. Write this sketch to two different nodes,
* connect the role_pin to ground on one. The ping node sends the current time to the pong node,
* which responds by sending the value back. The ping node can then see how long the whole cycle
* took.
*/
#include <cstdlib>
#include <iostream>
#include "./RF24.h"
//
// Hardware configuration
//
// CE Pin, CSN Pin, SPI Speed
// Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
//RF24 radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ);
// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
//RF24 radio(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ);
// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_8MHZ);
// sets the role of this unit in hardware. Connect to GND to be the 'pong' receiver
// Leave open to be the 'ping' transmitter
const int role_pin = 7;
//
// Topology
//
// Radio pipe addresses for the 2 nodes to communicate.
const uint64_t pipes[2] = { 0xF0F0F0F0E1LL, 0xF0F0F0F0D2LL };
//
// Role management
//
// Set up role. This sketch uses the same software for all the nodes
// in this system. Doing so greatly simplifies testing. The hardware itself specifies
// which node it is.
//
// This is done through the role_pin
//
// The various roles supported by this sketch
typedef enum { role_ping_out = 1, role_pong_back } role_e;
// The debug-friendly names of those roles
const char* role_friendly_name[] = { "invalid", "Ping out", "Pong back"};
// The role of the current running sketch
role_e role;
int main(int argc, char** argv)
{
// Role
role = role_pong_back;
//
// Print preamble:
//
//Serial.begin(115200);
//printf_begin();
printf("RF24/examples/pongtest/\n");
printf("ROLE: %s\n",role_friendly_name[role]);
//
// Setup and configure rf radio
//
radio.begin();
// optionally, increase the delay between retries & # of retries
radio.setRetries(15,15);
// optionally, reduce the payload size. seems to
// improve reliability
// radio.setPayloadSize(8);
radio.setChannel(0x4c);
radio.setPALevel(RF24_PA_LOW);
//
// Open pipes to other nodes for communication
//
// This simple sketch opens two pipes for these two nodes to communicate
// back and forth.
// Open 'our' pipe for writing
// Open the 'other' pipe for reading, in position #1 (we can have up to 5 pipes open for reading)
if ( role == role_ping_out )
{
radio.openWritingPipe(pipes[0]);
radio.openReadingPipe(1,pipes[1]);
}
else
{
radio.openWritingPipe(pipes[1]);
radio.openReadingPipe(1,pipes[0]);
}
//
// Start listening
//
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
//
// Ping out role. Repeatedly send the current time
//
// forever loop
while (1)
{
if (role == role_ping_out)
{
// First, stop listening so we can talk.
radio.stopListening();
// Take the time, and send it. This will block until complete
unsigned long time = millis();
printf("Now sending %lu...",time);
bool ok = radio.write( &time, sizeof(unsigned long) );
if (ok)
printf("ok...");
else
printf("failed.\n");
// Now, continue listening
radio.startListening();
// Wait here until we get a response, or timeout (250ms)
unsigned long started_waiting_at = millis();
bool timeout = false;
while ( ! radio.available() && ! timeout ) {
// by bcatalin » Thu Feb 14, 2013 11:26 am
delay(5); //add a small delay to let radio.available to check payload
if (millis() - started_waiting_at > 200 )
timeout = true;
}
// Describe the results
if ( timeout )
{
printf("Failed, response timed out.\n");
}
else
{
// Grab the response, compare, and send to debugging spew
unsigned long got_time;
radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got response %lu, round-trip delay: %lu\n",got_time,millis()-got_time);
}
// Try again 1s later
// delay(1000);
sleep(1);
}
//
// Pong back role. Receive each packet, dump it out, and send it back
//
if ( role == role_pong_back )
{
// if there is data ready
//printf("Check available...\n");
if ( radio.available() )
{
// Dump the payloads until we've gotten everything
unsigned long got_time;
bool done = false;
while (!done)
{
// Fetch the payload, and see if this was the last one.
done = radio.read( &got_time, sizeof(unsigned long) );
// Spew it
printf("Got payload(%d) %lu...\n",sizeof(unsigned long), got_time);
// Delay just a little bit to let the other unit
// make the transition to receiver
delay(20);
}
// First, stop listening so we can talk
radio.stopListening();
// Send the final one back.
radio.write( &got_time, sizeof(unsigned long) );
// Now, resume listening so we catch the next packets.
radio.startListening();
}
}
} // forever loop
return 0;
}
// vim:cin:ai:sts=2 sw=2 ft=cpp

134
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/*
*
* Filename : rpi-hub.cpp
*
* This program makes the RPi as a hub listening to all six pipes from the remote sensor nodes ( usually Arduino )
* and will return the packet back to the sensor on pipe0 so that the sender can calculate the round trip delays
* when the payload matches.
*
* I encounter that at times, it also receive from pipe7 ( or pipe0 ) with content of FFFFFFFFF that I will not sent
* back to the sender
*
* Refer to RF24/examples/rpi_hub_arduino/ for the corresponding Arduino sketches to work with this code.
*
*
* CE is not used and CSN is GPIO25 (not pinout)
*
* Refer to RPi docs for GPIO numbers
*
* Author : Stanley Seow
* e-mail : stanleyseow@gmail.com
* date : 6th Mar 2013
*
* 03/17/2013 : Charles-Henri Hallard (http://hallard.me)
* Modified to use with Arduipi board http://hallard.me/arduipi
* Changed to use modified bcm2835 and RF24 library
*
*
*/
#include <cstdlib>
#include <iostream>
#include "./RF24.h"
using namespace std;
// Radio pipe addresses for the 2 nodes to communicate.
// First pipe is for writing, 2nd, 3rd, 4th, 5th & 6th is for reading...
const uint64_t pipes[6] =
{ 0xF0F0F0F0D2LL, 0xF0F0F0F0E1LL,
0xF0F0F0F0E2LL, 0xF0F0F0F0E3LL,
0xF0F0F0F0F1, 0xF0F0F0F0F2
};
// CE Pin, CSN Pin, SPI Speed
// Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
//RF24 radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ);
// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
//RF24 radio(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ);
// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_8MHZ);
int main(int argc, char** argv)
{
uint8_t len;
// Refer to RF24.h or nRF24L01 DS for settings
radio.begin();
radio.enableDynamicPayloads();
radio.setAutoAck(1);
radio.setRetries(15,15);
radio.setDataRate(RF24_1MBPS);
radio.setPALevel(RF24_PA_MAX);
radio.setChannel(76);
radio.setCRCLength(RF24_CRC_16);
// Open 6 pipes for readings ( 5 plus pipe0, also can be used for reading )
radio.openWritingPipe(pipes[0]);
radio.openReadingPipe(1,pipes[1]);
radio.openReadingPipe(2,pipes[2]);
radio.openReadingPipe(3,pipes[3]);
radio.openReadingPipe(4,pipes[4]);
radio.openReadingPipe(5,pipes[5]);
//
// Start listening
//
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
printf("Output below : \n");
delay(1);
while(1)
{
char receivePayload[32];
uint8_t pipe = 1;
// Start listening
radio.startListening();
while ( radio.available(&pipe) )
{
len = radio.getDynamicPayloadSize();
radio.read( receivePayload, len );
// Display it on screen
printf("Recv: size=%i payload=%s pipe=%i",len,receivePayload,pipe);
// Send back payload to sender
radio.stopListening();
// if pipe is 7, do not send it back
if ( pipe != 7 )
{
radio.write(receivePayload,len);
receivePayload[len]=0;
printf("\t Send: size=%i payload=%s pipe:%i\n",len,receivePayload,pipe);
}
else
{
printf("\n");
}
pipe++;
// reset pipe to 0
if ( pipe > 6 )
pipe = 0;
}
delayMicroseconds(20);
}
return 0;
}

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/*
Copyright (C) 2011 J. Coliz <maniacbug@ymail.com>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
03/17/2013 : Charles-Henri Hallard (http://hallard.me)
Modified to use with Arduipi board http://hallard.me/arduipi
Changed to use modified bcm2835 and RF24 library
*/
/**
* Channel scanner
*
* Example to detect interference on the various channels available.
* This is a good diagnostic tool to check whether you're picking a
* good channel for your application.
*
* Inspired by cpixip.
* See http://arduino.cc/forum/index.php/topic,54795.0.html
*/
#include <cstdlib>
#include <iostream>
#include "./RF24.h"
using namespace std;
//
// Hardware configuration
//
// CE Pin, CSN Pin, SPI Speed
// Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
//RF24 radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ);
// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
//RF24 radio(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ);
// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_8MHZ);
//
// Channel info
//
//const uint8_t num_channels = 128;
const uint8_t num_channels = 120;
uint8_t values[num_channels];
const int num_reps = 100;
int reset_array=0;
int main(int argc, char** argv)
{
//
// Print preamble
//
//Serial.begin(57600);
//printf_begin();
printf("RF24/examples/scanner/\n");
//
// Setup and configure rf radio
//
radio.begin();
radio.setAutoAck(false);
// Get into standby mode
radio.startListening();
radio.stopListening();
radio.printDetails();
// Print out header, high then low digit
int i = 0;
while ( i < num_channels )
{
printf("%x",i>>4);
++i;
}
printf("\n");
i = 0;
while ( i < num_channels )
{
printf("%x",i&0xf);
++i;
}
printf("\n");
// forever loop
while(1)
{
if ( reset_array == 1 )
{
// Clear measurement values
memset(values,0,sizeof(values));
printf("\n");
}
// Scan all channels num_reps times
int i = num_channels;
while (i--)
{
// Select this channel
radio.setChannel(i);
// Listen for a little
radio.startListening();
delayMicroseconds(128);
radio.stopListening();
// Did we get a carrier?
if ( radio.testCarrier() )
++values[i];
if ( values[i] == 0xf )
{
reset_array = 2;
}
}
// Print out channel measurements, clamped to a single hex digit
i = 0;
while ( i < num_channels )
{
printf("%x",min(0xf,(values[i]&0xf)));
++i;
}
printf("\n");
}
return 0;
}
// vim:ai:cin:sts=2 sw=2 ft=cpp

125
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/*
Copyright (c) 2007 Stefan Engelke <mbox@stefanengelke.de>
Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use, copy,
modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
*/
/* Memory Map */
#define CONFIG 0x00
#define EN_AA 0x01
#define EN_RXADDR 0x02
#define SETUP_AW 0x03
#define SETUP_RETR 0x04
#define RF_CH 0x05
#define RF_SETUP 0x06
#define STATUS 0x07
#define OBSERVE_TX 0x08
#define CD 0x09
#define RX_ADDR_P0 0x0A
#define RX_ADDR_P1 0x0B
#define RX_ADDR_P2 0x0C
#define RX_ADDR_P3 0x0D
#define RX_ADDR_P4 0x0E
#define RX_ADDR_P5 0x0F
#define TX_ADDR 0x10
#define RX_PW_P0 0x11
#define RX_PW_P1 0x12
#define RX_PW_P2 0x13
#define RX_PW_P3 0x14
#define RX_PW_P4 0x15
#define RX_PW_P5 0x16
#define FIFO_STATUS 0x17
#define DYNPD 0x1C
#define FEATURE 0x1D
/* Bit Mnemonics */
#define MASK_RX_DR 6
#define MASK_TX_DS 5
#define MASK_MAX_RT 4
#define EN_CRC 3
#define CRCO 2
#define PWR_UP 1
#define PRIM_RX 0
#define ENAA_P5 5
#define ENAA_P4 4
#define ENAA_P3 3
#define ENAA_P2 2
#define ENAA_P1 1
#define ENAA_P0 0
#define ERX_P5 5
#define ERX_P4 4
#define ERX_P3 3
#define ERX_P2 2
#define ERX_P1 1
#define ERX_P0 0
#define AW 0
#define ARD 4
#define ARC 0
#define PLL_LOCK 4
#define RF_DR 3
#define RF_PWR 6
#define RX_DR 6
#define TX_DS 5
#define MAX_RT 4
#define RX_P_NO 1
#define TX_FULL 0
#define PLOS_CNT 4
#define ARC_CNT 0
#define TX_REUSE 6
#define FIFO_FULL 5
#define TX_EMPTY 4
#define RX_FULL 1
#define RX_EMPTY 0
#define DPL_P5 5
#define DPL_P4 4
#define DPL_P3 3
#define DPL_P2 2
#define DPL_P1 1
#define DPL_P0 0
#define EN_DPL 2
#define EN_ACK_PAY 1
#define EN_DYN_ACK 0
/* Instruction Mnemonics */
#define R_REGISTER 0x00
#define W_REGISTER 0x20
#define REGISTER_MASK 0x1F
#define ACTIVATE 0x50
#define R_RX_PL_WID 0x60
#define R_RX_PAYLOAD 0x61
#define W_TX_PAYLOAD 0xA0
#define W_ACK_PAYLOAD 0xA8
#define FLUSH_TX 0xE1
#define FLUSH_RX 0xE2
#define REUSE_TX_PL 0xE3
#define NOP 0xFF
/* Non-P omissions */
#define LNA_HCURR 0
/* P model memory Map */
#define RPD 0x09
/* P model bit Mnemonics */
#define RF_DR_LOW 5
#define RF_DR_HIGH 3
#define RF_PWR_LOW 1
#define RF_PWR_HIGH 2

49
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this is library to use the nrf24l01 on the raspberry pi.
it's based on the arduino lib from J. Coliz <maniacbug@ymail.com>.
the library was berryfied by Purinda Gunasekara <purinda@gmail.com>.
then forked from forked from github stanleyseow/RF24 by myself
setup the library
=================
Clone or download this repo then go to folder
cd RF24/librf24-rpi/librf24-bcm/
then
make ; make install
examples
========
go to examples subfolder then
make ; make install
In my examples I used the NRF on ArduiPi Board
http://hallard.me/arduipi
So on example file the instance is created as follow, change the pins according your connections
// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_8MHZ);
Pin are
NRF24L01 RPI P1 Connector
nrf-vcc = rpi-3v3 (01)
nrf-gnd = rpi-gnd (06)
nrf-ce = rpi-ce1 (26)
nrf-csn = rpi-gpio22 (15)
nrf-sck = rpi-sckl (23)
nrf-mo = rpi-mosi (19)
nrf-mi = rpi-miso (21)
known issues
============
none
contact
=======
Charles-Henri Hallard http://hallard.me