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Merge branch 'master' of github.com:maniacbug/RF24

This commit is contained in:
maniacbug 2011-05-10 15:25:59 -07:00
parent 93f5cface0 31793823ea
commit a647a0f091
11 changed files with 1266 additions and 6 deletions
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129
RF24.cpp
View File

@ -11,7 +11,7 @@
#include "RF24.h" #include "RF24.h"
#include "nRF24L01.h" #include "nRF24L01.h"
#undef SERIAL_DEBUG #define SERIAL_DEBUG
#ifdef SERIAL_DEBUG #ifdef SERIAL_DEBUG
#define IF_SERIAL_DEBUG(x) (x) #define IF_SERIAL_DEBUG(x) (x)
#else #else
@ -51,6 +51,18 @@ uint8_t RF24::read_register(uint8_t reg, uint8_t* buf, uint8_t len)
/******************************************************************/ /******************************************************************/
uint8_t RF24::read_register(uint8_t reg)
{
csn(LOW);
SPI.transfer( R_REGISTER | ( REGISTER_MASK & reg ) );
uint8_t result = SPI.transfer(0xff);
csn(HIGH);
return result;
}
/******************************************************************/
uint8_t RF24::write_register(uint8_t reg, const uint8_t* buf, uint8_t len) uint8_t RF24::write_register(uint8_t reg, const uint8_t* buf, uint8_t len)
{ {
uint8_t status; uint8_t status;
@ -190,7 +202,7 @@ void RF24::print_observe_tx(uint8_t value)
/******************************************************************/ /******************************************************************/
RF24::RF24(uint8_t _cepin, uint8_t _cspin): RF24::RF24(uint8_t _cepin, uint8_t _cspin):
ce_pin(_cepin), csn_pin(_cspin), payload_size(32) ce_pin(_cepin), csn_pin(_cspin), payload_size(32), ack_payload_available(false)
{ {
} }
@ -321,12 +333,20 @@ void RF24::stopListening(void)
/******************************************************************/ /******************************************************************/
void RF24::powerDown(void)
{
write_register(CONFIG,0);
}
/******************************************************************/
boolean RF24::write( const void* buf, uint8_t len ) boolean RF24::write( const void* buf, uint8_t len )
{ {
boolean result = false; boolean result = false;
// Transmitter power-up // Transmitter power-up
write_register(CONFIG, _BV(EN_CRC) | _BV(PWR_UP)); write_register(CONFIG, _BV(EN_CRC) | _BV(PWR_UP));
delay(2);
// Send the payload // Send the payload
write_payload( buf, len ); write_payload( buf, len );
@ -339,18 +359,33 @@ boolean RF24::write( const void* buf, uint8_t len )
// Monitor the send // Monitor the send
uint8_t observe_tx; uint8_t observe_tx;
uint8_t status; uint8_t status;
uint8_t retries = 255;
do do
{ {
status = read_register(OBSERVE_TX,&observe_tx,1); status = read_register(OBSERVE_TX,&observe_tx,1);
IF_SERIAL_DEBUG(Serial.print(status,HEX)); IF_SERIAL_DEBUG(Serial.print(status,HEX));
IF_SERIAL_DEBUG(Serial.print(observe_tx,HEX)); IF_SERIAL_DEBUG(Serial.print(observe_tx,HEX));
if ( ! retries-- )
{
IF_SERIAL_DEBUG(printf("ABORTED: too many retries\n\r"));
break;
}
} }
while( ! ( status & ( _BV(TX_DS) | _BV(MAX_RT) ) ) ); while( ! ( status & ( _BV(TX_DS) | _BV(MAX_RT) ) ) );
if ( status & _BV(TX_DS) ) if ( status & _BV(TX_DS) )
result = true; result = true;
IF_SERIAL_DEBUG(Serial.println(result?"...OK.":"...Failed")); IF_SERIAL_DEBUG(Serial.print(result?"...OK.":"...Failed"));
ack_payload_available = ( status & _BV(RX_DR) );
if ( ack_payload_available )
{
write_register(STATUS,_BV(RX_DR) );
ack_payload_length = read_payload_length();
IF_SERIAL_DEBUG(Serial.print("[AckPacket]/"));
IF_SERIAL_DEBUG(Serial.println(ack_payload_length,DEC));
}
// Yay, we are done. // Yay, we are done.
ce(LOW); ce(LOW);
@ -366,6 +401,21 @@ boolean RF24::write( const void* buf, uint8_t len )
return result; return result;
} }
/******************************************************************/
uint8_t RF24::read_payload_length(void)
{
uint8_t result = 0;
csn(LOW);
SPI.transfer( R_RX_PL_WID );
result = SPI.transfer(0xff);
csn(HIGH);
return result;
}
/******************************************************************/ /******************************************************************/
boolean RF24::available(void) boolean RF24::available(void)
@ -378,12 +428,11 @@ boolean RF24::available(void)
boolean RF24::available(uint8_t* pipe_num) boolean RF24::available(uint8_t* pipe_num)
{ {
uint8_t status = get_status(); uint8_t status = get_status();
IF_SERIAL_DEBUG(print_status(status));
boolean result = ( status & _BV(RX_DR) ); boolean result = ( status & _BV(RX_DR) );
if (result) if (result)
{ {
IF_SERIAL_DEBUG(print_status(status));
// If the caller wants the pipe number, include that // If the caller wants the pipe number, include that
if ( pipe_num ) if ( pipe_num )
*pipe_num = ( status >> RX_P_NO ) & B111; *pipe_num = ( status >> RX_P_NO ) & B111;
@ -394,6 +443,12 @@ boolean RF24::available(uint8_t* pipe_num)
// actually READ the payload? // actually READ the payload?
write_register(STATUS,_BV(RX_DR) ); write_register(STATUS,_BV(RX_DR) );
// Handle ack payload receipt
if ( status & _BV(TX_DS) )
{
write_register(STATUS,_BV(TX_DS));
}
} }
return result; return result;
@ -458,5 +513,67 @@ void RF24::openReadingPipe(uint8_t child, uint64_t value)
write_register(EN_RXADDR,en_rx); write_register(EN_RXADDR,en_rx);
} }
} }
/******************************************************************/
void RF24::toggle_features(void)
{
csn(LOW);
SPI.transfer( ACTIVATE );
SPI.transfer( 0x73 );
csn(HIGH);
}
/******************************************************************/
void RF24::enableAckPayload(void)
{
//
// enable ack payload and dynamic payload features
//
write_register(FEATURE,read_register(FEATURE) | _BV(EN_ACK_PAY) | _BV(EN_DPL) );
// If it didn't work, the features are not enabled
if ( ! read_register(FEATURE) )
{
// So enable them and try again
toggle_features();
write_register(FEATURE,read_register(FEATURE) | _BV(EN_ACK_PAY) | _BV(EN_DPL) );
}
IF_SERIAL_DEBUG(printf("FEATURE=%i\n\r",read_register(FEATURE)));
//
// Enable dynamic payload on pipe 0
//
write_register(DYNPD,read_register(DYNPD) | _BV(DPL_P1) | _BV(DPL_P0));
}
/******************************************************************/
void RF24::writeAckPayload(uint8_t pipe, const void* buf, uint8_t len)
{
const uint8_t* current = (const uint8_t*)buf;
csn(LOW);
SPI.transfer( W_ACK_PAYLOAD | ( pipe & B111 ) );
uint8_t data_len = min(len,32);
while ( data_len-- )
SPI.transfer(*current++);
csn(HIGH);
}
/******************************************************************/
boolean RF24::isAckPayloadAvailable(void)
{
boolean result = ack_payload_available;
ack_payload_available = false;
return result;
}
// vim:ai:cin:sts=2 sw=2 ft=cpp // vim:ai:cin:sts=2 sw=2 ft=cpp

28
RF24.h
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@ -21,6 +21,8 @@ private:
uint8_t ce_pin; /**< "Chip Enable" pin, activates the RX or TX role */ uint8_t ce_pin; /**< "Chip Enable" pin, activates the RX or TX role */
uint8_t csn_pin; /**< SPI Chip select */ uint8_t csn_pin; /**< SPI Chip select */
uint8_t payload_size; /**< Fixed size of payloads */ uint8_t payload_size; /**< Fixed size of payloads */
boolean ack_payload_available; /**< Whether there is an ack payload waiting */
uint8_t ack_payload_length; /**< Dynamic size of pending ack payload. Note: not used. */
protected: protected:
/** /**
@ -54,6 +56,8 @@ protected:
* @return Current value of status register * @return Current value of status register
*/ */
uint8_t read_register(uint8_t reg, uint8_t* buf, uint8_t len) ; uint8_t read_register(uint8_t reg, uint8_t* buf, uint8_t len) ;
uint8_t read_register(uint8_t reg) ;
/** /**
* Write a chunk of data to a register * Write a chunk of data to a register
@ -96,6 +100,16 @@ protected:
*/ */
uint8_t read_payload(void* buf, uint8_t len) ; uint8_t read_payload(void* buf, uint8_t len) ;
/**
* Read the payload length
*
* For dynamic payloads, this pulls the size of the payload off
* the chip
*
* @return Payload length of last-received dynamic payload
*/
uint8_t read_payload_length(void);
/** /**
* Empty the receive buffer * Empty the receive buffer
* *
@ -135,6 +149,7 @@ protected:
*/ */
void print_observe_tx(uint8_t value) ; void print_observe_tx(uint8_t value) ;
void toggle_features(void);
/**@}*/ /**@}*/
public: public:
@ -208,6 +223,14 @@ public:
*/ */
void stopListening(void); void stopListening(void);
/**
* Enter low-power mode
*
* To return to normal power mode, either write() some data or
* startListening().
*/
void powerDown(void);
/** /**
* Write to the open writing pipe * Write to the open writing pipe
* *
@ -299,6 +322,11 @@ public:
*/ */
void openReadingPipe(uint8_t number, uint64_t address); void openReadingPipe(uint8_t number, uint64_t address);
void enableAckPayload(void);
void writeAckPayload(uint8_t pipe, const void* buf, uint8_t len);
boolean isAckPayloadAvailable(void);
}; };
/** /**

1
examples/pingpair_pl/.gitignore vendored Normal file
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@ -0,0 +1 @@
output/

290
examples/pingpair_pl/makefile Normal file
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@ -0,0 +1,290 @@
# Arduino Makefile
# Arduino adaptation by mellis, eighthave, oli.keller
# Modified by Kerry Wong to support NetBeans
# Modified by Rob Gray (Graynomad) for use with Windows and no IDE
# This works in my environment and I use it to program two different
# 328-based boards and a Mega2560. It's not necessarily robust and
# I may have broken something in the original file that I don't use.
#
# This makefile allows you to build sketches from the command line
# without the Arduino environment.
#
# Instructions for using the makefile:
#
# 1. Copy this file into the folder with your sketch. The project code file
# should have a .c extension however the file gets copied to a .cpp before
# compilation so you still write in C++.
#
# 2. Modify the lines between the double ### rows to set the paths
# comm ports etc for your system. EG. c:/progra~1/arduino/arduino-00
# for the Arduino IDE, Note the use of short folder name, don't use
# "Program files" because spaces will break the build.
#
# Set the line containing "MCU" to match your board's processor.
# Typically ATmega328 or ATmega2560. If you're using a LilyPad Arduino,
# change F_CPU to 8000000.
#
# 3. At the command line, change to the directory containing your
# program's file and the makefile.
#
# 4. Type "make" and press enter to compile/verify your program.
# The default make target will also perform the uplode using avrdude.
#
# The first time this is done all required libraries will be built
# and a core.a file will be created in the output folder.
#
# NOTES:
# All output goes into a folder called "output" underneath the working folder.
# The default all: target creates symbol (.sym) and expanded assembly
# (.lss) files and uploads the program.
#
#
##########################################################
##########################################################
# Select processor here
MCU = atmega328p
#MCU = atmega2560
ifeq ($(MCU),atmega2560)
UPLOAD_RATE = 115200
AVRDUDE_PROTOCOL = stk500v2
COM = 39
endif
ifeq ($(MCU),atmega328p)
UPLOAD_RATE = 57600
AVRDUDE_PROTOCOL = stk500v1
COM = 33
endif
UNAME := $(shell uname)
ifeq ($(UNAME),Darwin)
ARDUINO_VERSION = 21
ARDUINO_DIR = /opt/arduino-00$(ARDUINO_VERSION)
AVR_TOOLS_PATH = $(ARDUINO_DIR)/hardware/tools/avr/bin
AVRDUDECONFIG_PATH = $(ARDUINO_DIR)/hardware/tools/avr/etc
PORT = /dev/tty.usbserial-A600eHIs
PORT2 = /dev/tty.usbserial-A9007LmI
else
ARDUINO_VERSION = 22
ARDUINO_DIR = /opt/arduino-00$(ARDUINO_VERSION)
AVR_TOOLS_PATH = /usr/bin
AVRDUDECONFIG_PATH = $(ARDUINO_DIR)/hardware/tools
PORT = /dev/ttyUSB0
PORT2 = /dev/ttyUSB1
endif
PROJECT_NAME = $(notdir $(PWD))
PROJECT_DIR = .
ARDUINO_CORE = $(ARDUINO_DIR)/hardware/arduino/cores/arduino
ARDUINO_AVR = $(ARDUINO_DIR)/hardware/tools/avr/avr/include/avr
ARDUINO_LIB = $(ARDUINO_DIR)/libraries
F_CPU = 16000000
##########################################################
##########################################################
# Note that if your program has dependencies other than those
# already listed below, you will need to add them accordingly.
C_MODULES = \
$(ARDUINO_CORE)/wiring_pulse.c \
$(ARDUINO_CORE)/wiring_analog.c \
$(ARDUINO_CORE)/pins_arduino.c \
$(ARDUINO_CORE)/wiring.c \
$(ARDUINO_CORE)/wiring_digital.c \
$(ARDUINO_CORE)/WInterrupts.c \
$(ARDUINO_CORE)/wiring_shift.c \
CXX_MODULES = \
$(ARDUINO_CORE)/Tone.cpp \
$(ARDUINO_CORE)/main.cpp \
$(ARDUINO_CORE)/WMath.cpp \
$(ARDUINO_CORE)/Print.cpp \
$(ARDUINO_CORE)/HardwareSerial.cpp \
$(ARDUINO_LIB)/SPI/SPI.cpp \
../../RF24.cpp
CXX_APP = output/$(PROJECT_NAME).cpp
MODULES = $(C_MODULES) $(CXX_MODULES)
SRC = $(C_MODULES)
CXXSRC = $(CXX_MODULES) $(CXX_APP)
FORMAT = ihex
# Name of this Makefile (used for "make depend").
MAKEFILE = Makefile
# Debugging format.
# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
#DEBUG = stabs
DEBUG =
OPT = s
# Place -D or -U options here
CDEFS = -DF_CPU=$(F_CPU)L -DARDUINO=$(ARDUINO_VERSION)
CXXDEFS = -DF_CPU=$(F_CPU)L -DARDUINO=$(ARDUINO_VERSION)
# Place -I options here
CINCS = -I$(ARDUINO_CORE) -I$(ARDUINO_LIB) -I$(PROJECT_DIR) -I$(ARDUINO_AVR) -I$(ARDUINO_LIB)/SPI -I../..
CXXINCS = -I$(ARDUINO_CORE) -I$(ARDUINO_LIB)
# Compiler flag to set the C Standard level.
# c89 - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99 - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
#CSTANDARD = -std=gnu99
CDEBUG = -g$(DEBUG)
#CWARN = -Wall -Wstrict-prototypes
CWARN = -Wall # show all warnings
#CWARN = -w # suppress all warnings
CMAP = -Wl,-Map,output.map
####CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CTUNING = -ffunction-sections -fdata-sections
CXXTUNING = -fno-exceptions -ffunction-sections -fdata-sections
#CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
MMCU = -mmcu=$(MCU)
CFLAGS = $(CDEBUG) -O$(OPT) $(CMAP) $(CWARN) $(CTUNING) $(MMCU) $(CDEFS) $(CINCS) $(CSTANDARD) $(CEXTRA)
CXXFLAGS = $(CDEBUG) -O$(OPT) $(CWARN) $(CXXTUNING) $(CDEFS) $(CINCS)
#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
LDFLAGS = -O$(OPT) -lm -Wl,--gc-sections
#LDFLAGS = -O$(OPT) -lm -Wl,-Map,output/$(PROJECT_NAME).map
# Programming support using avrdude. Settings and variables.
AVRDUDE_PORT = $(PORT)
AVRDUDE_WRITE_FLASH = -U flash:w:output/$(PROJECT_NAME).hex:i
AVRDUDE_FLAGS = -V -F -D -C $(AVRDUDECONFIG_PATH)/avrdude.conf \
-p $(MCU) -c $(AVRDUDE_PROTOCOL) -b $(UPLOAD_RATE)
# Program settings
CC = $(AVR_TOOLS_PATH)/avr-gcc
CXX = $(AVR_TOOLS_PATH)/avr-g++
LD = $(AVR_TOOLS_PATH)/avr-gcc
OBJCOPY = $(AVR_TOOLS_PATH)/avr-objcopy
OBJDUMP = $(AVR_TOOLS_PATH)/avr-objdump
AR = $(AVR_TOOLS_PATH)/avr-ar
SIZE = $(AVR_TOOLS_PATH)/avr-size
NM = $(AVR_TOOLS_PATH)/avr-nm
AVRDUDE = $(AVR_TOOLS_PATH)/avrdude
REMOVE = rm -f
MV = mv -f
# Define all object files.
OBJ = $(SRC:.c=.o) $(CXXSRC:.cpp=.o) $(ASRC:.S=.o)
OBJ_MODULES = $(C_MODULES:.c=.o) $(CXX_MODULES:.cpp=.o)
# Define all listing files.
LST = $(ASRC:.S=.lst) $(CXXSRC:.cpp=.lst) $(SRC:.c=.lst)
# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = $(CFLAGS) -mmcu=$(MCU)
ALL_CXXFLAGS = $(CXXFLAGS) -mmcu=$(MCU)
ALL_ASFLAGS = -x assembler-with-cpp $(ASFLAGS) -mmcu=$(MCU)
ALL_LDFLAGS = $(LDFLAGS) -mmcu=$(MCU)
# Default target.
# This is th etarget that gets executed with a make command
# that has no parameters, ie "make".
all: applet_files build sym lss size upload
build: elf hex
output/$(PROJECT_NAME).cpp: $(PROJECT_NAME).pde
test -d output || mkdir output
echo "#include <WProgram.h>" > $@
echo "#line 1 \"$<\"" >> $@
cat $< >> $@
elf: output/$(PROJECT_NAME).elf
hex: output/$(PROJECT_NAME).hex
eep: output/$(PROJECT_NAME).eep
lss: output/$(PROJECT_NAME).lss
#sym: output/$(PROJECT_NAME).sym
# Upload HEX file to Arduino
upload: output/$(PROJECT_NAME).hex
$(AVRDUDE) $(AVRDUDE_FLAGS) -P $(PORT) $(AVRDUDE_WRITE_FLASH)
$(AVRDUDE) $(AVRDUDE_FLAGS) -P $(PORT2) $(AVRDUDE_WRITE_FLASH)
sym:
$(NM) -n -C --format=posix output/$(PROJECT_NAME).elf > output/$(PROJECT_NAME).sym
# Display size of file.
size:
$(SIZE) output/$(PROJECT_NAME).elf
# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
--change-section-address .data-0x800000 \
--change-section-address .bss-0x800000 \
--change-section-address .noinit-0x800000 \
--change-section-address .eeprom-0x810000
coff: output/$(PROJECT_NAME).elf
$(COFFCONVERT) -O coff-avr output/$(PROJECT_NAME).elf $(PROJECT_NAME).cof
extcoff: $(PROJECT_NAME).elf
$(COFFCONVERT) -O coff-ext-avr output/$(PROJECT_NAME).elf $(PROJECT_NAME).cof
.SUFFIXES: .elf .hex .eep .lss .sym
.elf.hex:
$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
.elf.eep:
$(OBJCOPY) -O $(FORMAT) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
--no-change-warnings \
--change-section-lma .eeprom=0 $< $@
# Create extended listing file from ELF output file.
.elf.lss:
$(OBJDUMP) -h -S $< > $@
# Link: create ELF output file from library.
#output/$(PROJECT_NAME).elf: $(PROJECT_NAME).c output/core.a
output/$(PROJECT_NAME).elf: output/$(PROJECT_NAME).o output/core.a
$(LD) $(ALL_LDFLAGS) -o $@ output/$(PROJECT_NAME).o output/core.a
output/core.a: $(OBJ_MODULES)
@for i in $(OBJ_MODULES); do echo $(AR) rcs output/core.a $$i; $(AR) rcs output/core.a $$i; done
# Compile: create object files from C++ source files.
.cpp.o:
$(CXX) -c $(ALL_CXXFLAGS) $< -o $@
# Compile: create object files from C source files.
.c.o:
$(CC) -c $(ALL_CFLAGS) $< -o $@
# Compile: create assembler files from C source files.
.c.s:
$(CC) -S $(ALL_CFLAGS) $< -o $@
# Assemble: create object files from assembler source files.
.S.o:
$(CC) -c $(ALL_ASFLAGS) $< -o $@
# Automatic dependencies
%.d: %.c
$(CC) -M $(ALL_CFLAGS) $< | sed "s;$(notdir $*).o:;$*.o $*.d:;" > $@
%.d: %.cpp
$(CXX) -M $(ALL_CXXFLAGS) $< | sed "s;$(notdir $*).o:;$*.o $*.d:;" > $@
# Target: clean project.
clean:
$(REMOVE) output/$(PROJECT_NAME).hex output/$(PROJECT_NAME).eep output/$(PROJECT_NAME).cof output/$(PROJECT_NAME).elf \
output/$(PROJECT_NAME).map output/$(PROJECT_NAME).sym output/$(PROJECT_NAME).lss output/core.a \
$(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) $(CXXSRC:.cpp=.s) $(CXXSRC:.cpp=.d)
#.PHONY: all build elf hex eep lss sym program coff extcoff clean applet_files sizebefore sizeafter
.PHONY: all build elf hex eep lss sym program coff extcoff applet_files sizebefore sizeafter
#include $(SRC:.c=.d)
#include $(CXXSRC:.cpp=.d)

180
examples/pingpair_pl/pingpair_pl.pde Normal file
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@ -0,0 +1,180 @@
/*
Copyright (C) 2011 James Coliz, Jr. <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.
*/
/**
* Example of using Ack Payloads
*
* 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.
*/
#include <SPI.h>
#include "nRF24L01.h"
#include "RF24.h"
#include "printf.h"
//
// Hardware configuration
//
// Set up nRF24L01 radio on SPI bus plus pins 8 & 9
RF24 radio(8,9);
// sets the role of this unit in hardware. Connect to GND to be the 'pong' receiver
// Leave open to be the 'ping' transmitter
const short role_pin = 7;
//
// Topology
//
// Single radio pipe address for the 2 nodes to communicate.
const uint64_t pipe = 0xE8E8F0F0E1LL;
//
// 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_sender = 1, role_receiver } role_e;
// The debug-friendly names of those roles
const char* role_friendly_name[] = { "invalid", "Sender", "Receiver"};
// The role of the current running sketch
role_e role;
void setup(void)
{
//
// Role
//
// set up the role pin
pinMode(role_pin, INPUT);
digitalWrite(role_pin,HIGH);
delay(20); // Just to get a solid reading on the role pin
// read the address pin, establish our role
if ( digitalRead(role_pin) )
role = role_sender;
else
role = role_receiver;
//
// Print preamble
//
Serial.begin(9600);
printf_begin();
printf("\n\rRF24/examples/pingpair_pl/\n\r");
printf("ROLE: %s\n\r",role_friendly_name[role]);
//
// Setup and configure rf radio
//
radio.begin();
// We will be using the Ack Payload feature, so please enable it
radio.enableAckPayload();
//
// Open pipes to other nodes for communication
//
// This simple sketch opens a single pipes for these two nodes to communicate
// back and forth. One listens on it, the other talks to it.
if ( role == role_sender )
{
radio.openWritingPipe(pipe);
}
else
{
radio.openReadingPipe(1,pipe);
}
//
// Start listening
//
if ( role == role_receiver )
radio.startListening();
//
// Dump the configuration of the rf unit for debugging
//
radio.printDetails();
}
void loop(void)
{
static uint32_t message_count = 0;
//
// Sender role. Repeatedly send the current time
//
if (role == role_sender)
{
// Take the time, and send it. This will block until complete
unsigned long time = millis();
printf("Now sending %lu...",time);
radio.write( &time, sizeof(unsigned long) );
if ( radio.isAckPayloadAvailable() )
{
radio.read(&message_count,sizeof(message_count));
printf("Ack: [%lu] ",message_count);
}
printf("OK\n\r");
// Try again soon
delay(2000);
}
//
// Receiver role. Receive each packet, dump it out, add ack payload for next time
//
if ( role == role_receiver )
{
// if there is data ready
if ( radio.available() )
{
// Dump the payloads until we've gotten everything
static unsigned long got_time;
boolean 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 %lu\n",got_time);
}
// Add an ack packet for the next time around. This is a simple
// packet counter
radio.writeAckPayload( 1, &message_count, sizeof(message_count) );
++message_count;
}
}
}
// vim:ai:cin:sts=2 sw=2 ft=cpp

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/*
Copyright (C) 2011 James Coliz, Jr. <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.
*/
/**
* @file printf.h
*
* Setup necessary to direct stdout to the Arduino Serial library, which
* enables 'printf'
*/
#ifndef __PRINTF_H__
#define __PRINTF_H__
#include "WProgram.h"
int serial_putc( char c, FILE *t )
{
Serial.write( c );
return c;
}
void printf_begin(void)
{
fdevopen( &serial_putc, 0 );
}
#endif // __PRINTF_H__

1
examples/pingpair_sleepy/.gitignore vendored Normal file
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@ -0,0 +1 @@
output/

290
examples/pingpair_sleepy/makefile Normal file
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@ -0,0 +1,290 @@
# Arduino Makefile
# Arduino adaptation by mellis, eighthave, oli.keller
# Modified by Kerry Wong to support NetBeans
# Modified by Rob Gray (Graynomad) for use with Windows and no IDE
# This works in my environment and I use it to program two different
# 328-based boards and a Mega2560. It's not necessarily robust and
# I may have broken something in the original file that I don't use.
#
# This makefile allows you to build sketches from the command line
# without the Arduino environment.
#
# Instructions for using the makefile:
#
# 1. Copy this file into the folder with your sketch. The project code file
# should have a .c extension however the file gets copied to a .cpp before
# compilation so you still write in C++.
#
# 2. Modify the lines between the double ### rows to set the paths
# comm ports etc for your system. EG. c:/progra~1/arduino/arduino-00
# for the Arduino IDE, Note the use of short folder name, don't use
# "Program files" because spaces will break the build.
#
# Set the line containing "MCU" to match your board's processor.
# Typically ATmega328 or ATmega2560. If you're using a LilyPad Arduino,
# change F_CPU to 8000000.
#
# 3. At the command line, change to the directory containing your
# program's file and the makefile.
#
# 4. Type "make" and press enter to compile/verify your program.
# The default make target will also perform the uplode using avrdude.
#
# The first time this is done all required libraries will be built
# and a core.a file will be created in the output folder.
#
# NOTES:
# All output goes into a folder called "output" underneath the working folder.
# The default all: target creates symbol (.sym) and expanded assembly
# (.lss) files and uploads the program.
#
#
##########################################################
##########################################################
# Select processor here
MCU = atmega328p
#MCU = atmega2560
ifeq ($(MCU),atmega2560)
UPLOAD_RATE = 115200
AVRDUDE_PROTOCOL = stk500v2
COM = 39
endif
ifeq ($(MCU),atmega328p)
UPLOAD_RATE = 57600
AVRDUDE_PROTOCOL = stk500v1
COM = 33
endif
UNAME := $(shell uname)
ifeq ($(UNAME),Darwin)
ARDUINO_VERSION = 21
ARDUINO_DIR = /opt/arduino-00$(ARDUINO_VERSION)
AVR_TOOLS_PATH = $(ARDUINO_DIR)/hardware/tools/avr/bin
AVRDUDECONFIG_PATH = $(ARDUINO_DIR)/hardware/tools/avr/etc
PORT = /dev/tty.usbserial-A600eHIs
PORT2 = /dev/tty.usbserial-A9007LmI
else
ARDUINO_VERSION = 22
ARDUINO_DIR = /opt/arduino-00$(ARDUINO_VERSION)
AVR_TOOLS_PATH = /usr/bin
AVRDUDECONFIG_PATH = $(ARDUINO_DIR)/hardware/tools
PORT = /dev/ttyUSB0
PORT2 = /dev/ttyUSB1
endif
PROJECT_NAME = $(notdir $(PWD))
PROJECT_DIR = .
ARDUINO_CORE = $(ARDUINO_DIR)/hardware/arduino/cores/arduino
ARDUINO_AVR = $(ARDUINO_DIR)/hardware/tools/avr/avr/include/avr
ARDUINO_LIB = $(ARDUINO_DIR)/libraries
F_CPU = 16000000
##########################################################
##########################################################
# Note that if your program has dependencies other than those
# already listed below, you will need to add them accordingly.
C_MODULES = \
$(ARDUINO_CORE)/wiring_pulse.c \
$(ARDUINO_CORE)/wiring_analog.c \
$(ARDUINO_CORE)/pins_arduino.c \
$(ARDUINO_CORE)/wiring.c \
$(ARDUINO_CORE)/wiring_digital.c \
$(ARDUINO_CORE)/WInterrupts.c \
$(ARDUINO_CORE)/wiring_shift.c \
CXX_MODULES = \
$(ARDUINO_CORE)/Tone.cpp \
$(ARDUINO_CORE)/main.cpp \
$(ARDUINO_CORE)/WMath.cpp \
$(ARDUINO_CORE)/Print.cpp \
$(ARDUINO_CORE)/HardwareSerial.cpp \
$(ARDUINO_LIB)/SPI/SPI.cpp \
../../RF24.cpp
CXX_APP = output/$(PROJECT_NAME).cpp
MODULES = $(C_MODULES) $(CXX_MODULES)
SRC = $(C_MODULES)
CXXSRC = $(CXX_MODULES) $(CXX_APP)
FORMAT = ihex
# Name of this Makefile (used for "make depend").
MAKEFILE = Makefile
# Debugging format.
# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
#DEBUG = stabs
DEBUG =
OPT = s
# Place -D or -U options here
CDEFS = -DF_CPU=$(F_CPU)L -DARDUINO=$(ARDUINO_VERSION)
CXXDEFS = -DF_CPU=$(F_CPU)L -DARDUINO=$(ARDUINO_VERSION)
# Place -I options here
CINCS = -I$(ARDUINO_CORE) -I$(ARDUINO_LIB) -I$(PROJECT_DIR) -I$(ARDUINO_AVR) -I$(ARDUINO_LIB)/SPI -I../..
CXXINCS = -I$(ARDUINO_CORE) -I$(ARDUINO_LIB)
# Compiler flag to set the C Standard level.
# c89 - "ANSI" C
# gnu89 - c89 plus GCC extensions
# c99 - ISO C99 standard (not yet fully implemented)
# gnu99 - c99 plus GCC extensions
#CSTANDARD = -std=gnu99
CDEBUG = -g$(DEBUG)
#CWARN = -Wall -Wstrict-prototypes
CWARN = -Wall # show all warnings
#CWARN = -w # suppress all warnings
CMAP = -Wl,-Map,output.map
####CTUNING = -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
CTUNING = -ffunction-sections -fdata-sections
CXXTUNING = -fno-exceptions -ffunction-sections -fdata-sections
#CEXTRA = -Wa,-adhlns=$(<:.c=.lst)
MMCU = -mmcu=$(MCU)
CFLAGS = $(CDEBUG) -O$(OPT) $(CMAP) $(CWARN) $(CTUNING) $(MMCU) $(CDEFS) $(CINCS) $(CSTANDARD) $(CEXTRA)
CXXFLAGS = $(CDEBUG) -O$(OPT) $(CWARN) $(CXXTUNING) $(CDEFS) $(CINCS)
#ASFLAGS = -Wa,-adhlns=$(<:.S=.lst),-gstabs
LDFLAGS = -O$(OPT) -lm -Wl,--gc-sections
#LDFLAGS = -O$(OPT) -lm -Wl,-Map,output/$(PROJECT_NAME).map
# Programming support using avrdude. Settings and variables.
AVRDUDE_PORT = $(PORT)
AVRDUDE_WRITE_FLASH = -U flash:w:output/$(PROJECT_NAME).hex:i
AVRDUDE_FLAGS = -V -F -D -C $(AVRDUDECONFIG_PATH)/avrdude.conf \
-p $(MCU) -c $(AVRDUDE_PROTOCOL) -b $(UPLOAD_RATE)
# Program settings
CC = $(AVR_TOOLS_PATH)/avr-gcc
CXX = $(AVR_TOOLS_PATH)/avr-g++
LD = $(AVR_TOOLS_PATH)/avr-gcc
OBJCOPY = $(AVR_TOOLS_PATH)/avr-objcopy
OBJDUMP = $(AVR_TOOLS_PATH)/avr-objdump
AR = $(AVR_TOOLS_PATH)/avr-ar
SIZE = $(AVR_TOOLS_PATH)/avr-size
NM = $(AVR_TOOLS_PATH)/avr-nm
AVRDUDE = $(AVR_TOOLS_PATH)/avrdude
REMOVE = rm -f
MV = mv -f
# Define all object files.
OBJ = $(SRC:.c=.o) $(CXXSRC:.cpp=.o) $(ASRC:.S=.o)
OBJ_MODULES = $(C_MODULES:.c=.o) $(CXX_MODULES:.cpp=.o)
# Define all listing files.
LST = $(ASRC:.S=.lst) $(CXXSRC:.cpp=.lst) $(SRC:.c=.lst)
# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = $(CFLAGS) -mmcu=$(MCU)
ALL_CXXFLAGS = $(CXXFLAGS) -mmcu=$(MCU)
ALL_ASFLAGS = -x assembler-with-cpp $(ASFLAGS) -mmcu=$(MCU)
ALL_LDFLAGS = $(LDFLAGS) -mmcu=$(MCU)
# Default target.
# This is th etarget that gets executed with a make command
# that has no parameters, ie "make".
all: applet_files build sym lss size upload
build: elf hex
output/$(PROJECT_NAME).cpp: $(PROJECT_NAME).pde
test -d output || mkdir output
echo "#include <WProgram.h>" > $@
echo "#line 1 \"$<\"" >> $@
cat $< >> $@
elf: output/$(PROJECT_NAME).elf
hex: output/$(PROJECT_NAME).hex
eep: output/$(PROJECT_NAME).eep
lss: output/$(PROJECT_NAME).lss
#sym: output/$(PROJECT_NAME).sym
# Upload HEX file to Arduino
upload: output/$(PROJECT_NAME).hex
$(AVRDUDE) $(AVRDUDE_FLAGS) -P $(PORT) $(AVRDUDE_WRITE_FLASH)
$(AVRDUDE) $(AVRDUDE_FLAGS) -P $(PORT2) $(AVRDUDE_WRITE_FLASH)
sym:
$(NM) -n -C --format=posix output/$(PROJECT_NAME).elf > output/$(PROJECT_NAME).sym
# Display size of file.
size:
$(SIZE) output/$(PROJECT_NAME).elf
# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT=$(OBJCOPY) --debugging \
--change-section-address .data-0x800000 \
--change-section-address .bss-0x800000 \
--change-section-address .noinit-0x800000 \
--change-section-address .eeprom-0x810000
coff: output/$(PROJECT_NAME).elf
$(COFFCONVERT) -O coff-avr output/$(PROJECT_NAME).elf $(PROJECT_NAME).cof
extcoff: $(PROJECT_NAME).elf
$(COFFCONVERT) -O coff-ext-avr output/$(PROJECT_NAME).elf $(PROJECT_NAME).cof
.SUFFIXES: .elf .hex .eep .lss .sym
.elf.hex:
$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
.elf.eep:
$(OBJCOPY) -O $(FORMAT) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
--no-change-warnings \
--change-section-lma .eeprom=0 $< $@
# Create extended listing file from ELF output file.
.elf.lss:
$(OBJDUMP) -h -S $< > $@
# Link: create ELF output file from library.
#output/$(PROJECT_NAME).elf: $(PROJECT_NAME).c output/core.a
output/$(PROJECT_NAME).elf: output/$(PROJECT_NAME).o output/core.a
$(LD) $(ALL_LDFLAGS) -o $@ output/$(PROJECT_NAME).o output/core.a
output/core.a: $(OBJ_MODULES)
@for i in $(OBJ_MODULES); do echo $(AR) rcs output/core.a $$i; $(AR) rcs output/core.a $$i; done
# Compile: create object files from C++ source files.
.cpp.o:
$(CXX) -c $(ALL_CXXFLAGS) $< -o $@
# Compile: create object files from C source files.
.c.o:
$(CC) -c $(ALL_CFLAGS) $< -o $@
# Compile: create assembler files from C source files.
.c.s:
$(CC) -S $(ALL_CFLAGS) $< -o $@
# Assemble: create object files from assembler source files.
.S.o:
$(CC) -c $(ALL_ASFLAGS) $< -o $@
# Automatic dependencies
%.d: %.c
$(CC) -M $(ALL_CFLAGS) $< | sed "s;$(notdir $*).o:;$*.o $*.d:;" > $@
%.d: %.cpp
$(CXX) -M $(ALL_CXXFLAGS) $< | sed "s;$(notdir $*).o:;$*.o $*.d:;" > $@
# Target: clean project.
clean:
$(REMOVE) output/$(PROJECT_NAME).hex output/$(PROJECT_NAME).eep output/$(PROJECT_NAME).cof output/$(PROJECT_NAME).elf \
output/$(PROJECT_NAME).map output/$(PROJECT_NAME).sym output/$(PROJECT_NAME).lss output/core.a \
$(OBJ) $(LST) $(SRC:.c=.s) $(SRC:.c=.d) $(CXXSRC:.cpp=.s) $(CXXSRC:.cpp=.d)
#.PHONY: all build elf hex eep lss sym program coff extcoff clean applet_files sizebefore sizeafter
.PHONY: all build elf hex eep lss sym program coff extcoff applet_files sizebefore sizeafter
#include $(SRC:.c=.d)
#include $(CXXSRC:.cpp=.d)

273
examples/pingpair_sleepy/pingpair_sleepy.pde Normal file
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@ -0,0 +1,273 @@
/*
Copyright (C) 2011 James Coliz, Jr. <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.
*/
/**
* Example RF Radio Ping Pair which Sleeps between Sends
*
* This is an example of how to use the RF24 class to create a battery-efficient system.
* 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 <SPI.h>
#include <avr/sleep.h>
#include "nRF24L01.h"
#include "RF24.h"
#include "printf.h"
//
// Hardware configuration
//
// Set up nRF24L01 radio on SPI bus plus pins 8 & 9
RF24 radio(8,9);
// 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;
//
// Sleep declarations
//
typedef enum { wdt_16ms = 0, wdt_32ms, wdt_64ms, wdt_128ms, wdt_250ms, wdt_500ms, wdt_1s, wdt_2s, wdt_4s, wdt_8s } wdt_prescalar_e;
void setup_watchdog(uint8_t prescalar);
void do_sleep(void);
//
// Normal operation
//
void setup(void)
{
//
// Role
//
// set up the role pin
pinMode(role_pin, INPUT);
digitalWrite(role_pin,HIGH);
delay(20); // Just to get a solid reading on the role pin
// read the address pin, establish our role
if ( digitalRead(role_pin) )
role = role_ping_out;
else
role = role_pong_back;
//
// Print preamble
//
Serial.begin(9600);
printf_begin();
printf("\n\rRF24/examples/pingpair_sleepy/\n\r");
printf("ROLE: %s\n\r",role_friendly_name[role]);
//
// Prepare sleep parameters
//
// Only the ping out role sleeps. Wake up every 2s to send a ping
if ( role == role_ping_out )
setup_watchdog(wdt_2s);
//
// Setup and configure rf radio
//
radio.begin();
//
// 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();
}
void loop(void)
{
//
// Ping out role. Repeatedly send the current time
//
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);
radio.write( &time, sizeof(unsigned long) );
// 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 )
if (millis() - started_waiting_at > 250 )
timeout = true;
// Describe the results
if ( timeout )
{
printf("Failed, response timed out.\n\r");
}
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\r",got_time,millis()-got_time);
}
//
// Shut down the system
//
// Power down the radio. Note that the radio will get powered back up
// on the next write() call.
radio.powerDown();
// Sleep the MCU. The watchdog timer will awaken in a short while, and
// continue execution here.
do_sleep();
}
//
// Pong back role. Receive each packet, dump it out, and send it back
//
// This is untouched from the pingpair example.
//
if ( role == role_pong_back )
{
// if there is data ready
if ( radio.available() )
{
// Dump the payloads until we've gotten everything
unsigned long got_time;
boolean 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 %lu...",got_time);
}
// First, stop listening so we can talk
radio.stopListening();
// Send the final one back.
radio.write( &got_time, sizeof(unsigned long) );
printf("Sent response.\n\r");
// Now, resume listening so we catch the next packets.
radio.startListening();
}
}
}
//
// Sleep helpers
//
// 0=16ms, 1=32ms,2=64ms,3=128ms,4=250ms,5=500ms
// 6=1 sec,7=2 sec, 8=4 sec, 9= 8sec
void setup_watchdog(uint8_t prescalar)
{
prescalar = min(9,prescalar);
uint8_t wdtcsr = prescalar & 7;
if ( prescalar & 8 )
wdtcsr |= _BV(WDP3);
MCUSR &= ~_BV(WDRF);
WDTCSR = _BV(WDCE) | _BV(WDE);
WDTCSR = _BV(WDCE) | wdtcsr | _BV(WDIE);
}
// Even though it does nothing, it's necessary to have a WDT ISR
ISR(WDT_vect) {
}
void do_sleep(void)
{
set_sleep_mode(SLEEP_MODE_PWR_DOWN); // sleep mode is set here
sleep_enable();
sleep_mode(); // System sleeps here
sleep_disable(); // System continues execution here when watchdog timed out
}
// vim:ai:cin:sts=2 sw=2 ft=cpp

33
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/*
Copyright (C) 2011 James Coliz, Jr. <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.
*/
/**
* @file printf.h
*
* Setup necessary to direct stdout to the Arduino Serial library, which
* enables 'printf'
*/
#ifndef __PRINTF_H__
#define __PRINTF_H__
#include "WProgram.h"
int serial_putc( char c, FILE *t )
{
Serial.write( c );
return c;
}
void printf_begin(void)
{
fdevopen( &serial_putc, 0 );
}
#endif // __PRINTF_H__

14
nRF24L01.h
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@ -47,6 +47,8 @@
#define RX_PW_P4 0x15 #define RX_PW_P4 0x15
#define RX_PW_P5 0x16 #define RX_PW_P5 0x16
#define FIFO_STATUS 0x17 #define FIFO_STATUS 0x17
#define DYNPD 0x1C
#define FEATURE 0x1D
/* Bit Mnemonics */ /* Bit Mnemonics */
#define MASK_RX_DR 6 #define MASK_RX_DR 6
@ -87,13 +89,25 @@
#define TX_EMPTY 4 #define TX_EMPTY 4
#define RX_FULL 1 #define RX_FULL 1
#define RX_EMPTY 0 #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 */ /* Instruction Mnemonics */
#define R_REGISTER 0x00 #define R_REGISTER 0x00
#define W_REGISTER 0x20 #define W_REGISTER 0x20
#define REGISTER_MASK 0x1F #define REGISTER_MASK 0x1F
#define ACTIVATE 0x50
#define R_RX_PL_WID 0x60
#define R_RX_PAYLOAD 0x61 #define R_RX_PAYLOAD 0x61
#define W_TX_PAYLOAD 0xA0 #define W_TX_PAYLOAD 0xA0
#define W_ACK_PAYLOAD 0xA8
#define FLUSH_TX 0xE1 #define FLUSH_TX 0xE1
#define FLUSH_RX 0xE2 #define FLUSH_RX 0xE2
#define REUSE_TX_PL 0xE3 #define REUSE_TX_PL 0xE3