Add Rasperry Pi version

This commit is contained in:
Jimmy 2022-02-22 02:29:53 +13:00
commit ed3dac2ffb
10 changed files with 862 additions and 0 deletions

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.gitignore vendored Executable file
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*.hex
*.elf
*.bin

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.gitmodules vendored Executable file
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[submodule "test/usart"]
path = test/usart
url = git@git.chch.tech:avr/usart.git

BIN
main Executable file

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makefile Executable file
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all: build run
build:
g++ -Wall -pthread -o main test/${MODE}/main.cpp src/*.cpp -lpigpio -lrt
run:
sudo ./main

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src/driver.cpp Executable file
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#include "driver.h"
#include <pigpio.h>
namespace driver
{
namespace {
Mrf24j *mrf;
int spi;
}
void callback(int gpio, int level, uint32_t tick) {
mrf->interrupt_handler();
mrf->check_flags();
}
void init(Mrf24j *mrf) {
gpioInitialise();
driver::mrf = mrf;
spi = spiOpen(0, 1000000, 0);
gpioSetMode(RESET, PI_OUTPUT);
gpioWrite(RESET, 1);
gpioSetMode(SPI_CS, PI_OUTPUT);
cs_high();
gpioSetAlertFunc(INT, callback);
}
uint8_t transfer(uint8_t data) {
char txbuff[1], rxbuff[1];
txbuff[0] = data;
spiXfer(spi, txbuff, rxbuff, 1);
return rxbuff[0];
}
void reset() {
gpioWrite(RESET , 0);
time_sleep(0.01);
gpioWrite(RESET, 1);
time_sleep(0.02);
}
void wake() {
}
// INTERRUPT {
// mrf->interrupt_handler(); // mrf24 object interrupt routine
// mrf->check_flags();
// }
}

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src/driver.h Executable file
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#pragma once
#include "mrf24j.h"
#include <pigpio.h>
#if defined __AVR_ATmega328P__
#define SPI_DDR DDRB
#define SPI_PORT PORTB
#define SPI_SCK PB5
#define SPI_MISO PB4
#define SPI_MOSI PB3
#define SPI_CS PB2
#define RESET_DDR DDRB
#define RESET_PORT PORTB
#define RESET PB0
#define WAKE_PORT PORTB
#define WAKE_DDR DDRB
#define WAKE_PIN PB1
#define INTERRUPT ISR(INT0_vect)
#elif defined __AVR_ATmega32__ || defined __AVR_ATmega16__
#define SPI_PORT PORTB
#define SPI_DDR DDRB
#define SPI_SCK PB7
#define SPI_MOSI PB5
#define SPI_CS PB4
#define RESET_DDR DDRB
#define RESET_PORT PORTB
#define RESET PB0
#define WAKE_PORT PORTB
#define WAKE_DDR DDRB
#define WAKE_PIN PB1
#define INTERRUPT ISR(INT2_vect)
#elif defined RASPBERRYPI
#endif
#define RESET 24 //24
#define SPI_CS 8 //8
#define INT 2 //25
namespace driver
{
void init(Mrf24j *mrf);
uint8_t transfer(uint8_t data);
inline void cs_low() {gpioWrite(SPI_CS, 0);}
inline void cs_high() {gpioWrite(SPI_CS, 1);}
void wake();
void reset();
} // namespace spi

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src/mrf24j.cpp Executable file
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/**
* mrf24j.cpp, Karl Palsson, 2011, karlp@tweak.net.au
* modified bsd license / apache license
*/
#include "mrf24j.h"
#include "driver.h"
#include <string.h>
#include <pigpio.h>
// aMaxPHYPacketSize = 127, from the 802.15.4-2006 standard.
static uint8_t rx_buf[127];
// essential for obtaining the data frame only
// bytes_MHR = 2 Frame control + 1 sequence number + 2 panid + 2 shortAddr Destination + 2 shortAddr Source
static int bytes_MHR = 9;
static int bytes_FCS = 2; // FCS length = 2
static int bytes_nodata = bytes_MHR + bytes_FCS; // no_data bytes in PHY payload, header length + FCS
static int ignoreBytes = 0; // bytes to ignore, some modules behaviour.
static bool bufPHY = false; // flag to buffer all bytes in PHY Payload, or not
volatile uint8_t flag_got_rx;
volatile uint8_t flag_got_tx;
static rx_info_t rx_info;
static tx_info_t tx_info;
/**
* Constructor MRF24J Object.
*/
Mrf24j::Mrf24j() {
driver::init(this);
}
void Mrf24j::reset(void) {
driver::reset();
}
void Mrf24j::handlers(void (*rx_handler)(void), void (*tx_handler)(void)) {
this->rx_handler = rx_handler;
this->tx_handler = tx_handler;
}
byte Mrf24j::read_short(byte address) {
driver::cs_low();
// 0 top for short addressing, 0 bottom for read
driver::transfer(address<<1 & 0b01111110);
byte ret = driver::transfer(0x00);
driver::cs_high();
return ret;
}
byte Mrf24j::read_long(word address) {
driver::cs_low();
byte ahigh = address >> 3;
byte alow = address << 5;
driver::transfer(0x80 | ahigh); // high bit for long
driver::transfer(alow);
byte ret = driver::transfer(0);
driver::cs_high();
return ret;
}
void Mrf24j::write_short(byte address, byte data) {
driver::cs_low();
// 0 for top short address, 1 bottom for write
driver::transfer((address<<1 & 0b01111110) | 0x01);
driver::transfer(data);
driver::cs_high();
}
void Mrf24j::write_long(word address, byte data) {
driver::cs_low();
byte ahigh = address >> 3;
byte alow = address << 5;
driver::transfer(0x80 | ahigh); // high bit for long
driver::transfer(alow | 0x10); // last bit for write
driver::transfer(data);
driver::cs_high();
}
word Mrf24j::get_pan(void) {
byte panh = read_short(MRF_PANIDH);
return panh << 8 | read_short(MRF_PANIDL);
}
void Mrf24j::set_pan(word panid) {
write_short(MRF_PANIDH, panid >> 8);
write_short(MRF_PANIDL, panid & 0xff);
}
void Mrf24j::address16_write(word address16) {
write_short(MRF_SADRH, address16 >> 8);
write_short(MRF_SADRL, address16 & 0xff);
}
word Mrf24j::address16_read(void) {
byte a16h = read_short(MRF_SADRH);
return a16h << 8 | read_short(MRF_SADRL);
}
void Mrf24j::send_str(word dest16, char * data) {
byte len = strlen(data); // get the length of the char* array
send(dest16, data, len);
}
/**
* Simple send 16, with acks, not much of anything.. assumes src16 and local pan only.
* @param data
*/
void Mrf24j::send(word dest16, char * data, int len) {
int i = 0;
write_long(i++, bytes_MHR); // header length
// +ignoreBytes is because some module seems to ignore 2 bytes after the header?!.
// default: ignoreBytes = 0;
write_long(i++, bytes_MHR+ignoreBytes+len);
// 0 | pan compression | ack | no security | no data pending | data frame[3 bits]
write_long(i++, 0b01100001); // first byte of Frame Control
// 16 bit source, 802.15.4 (2003), 16 bit dest,
write_long(i++, 0b10001000); // second byte of frame control
write_long(i++, 1); // sequence number 1
word panid = get_pan();
write_long(i++, panid & 0xff); // dest panid
write_long(i++, panid >> 8);
write_long(i++, dest16 & 0xff); // dest16 low
write_long(i++, dest16 >> 8); // dest16 high
word src16 = address16_read();
write_long(i++, src16 & 0xff); // src16 low
write_long(i++, src16 >> 8); // src16 high
// All testing seems to indicate that the next two bytes are ignored.
//2 bytes on FCS appended by TXMAC
i+=ignoreBytes;
for (int q = 0; q < len; q++) {
write_long(i++, data[q]);
}
// ack on, and go!
write_short(MRF_TXNCON, (1<<MRF_TXNACKREQ | 1<<MRF_TXNTRIG));
}
void Mrf24j::set_interrupts(void) {
// interrupts for rx and tx normal complete
write_short(MRF_INTCON, 0b11110110);
}
/** use the 802.15.4 channel numbers..
*/
void Mrf24j::set_channel(byte channel) {
write_long(MRF_RFCON0, (((channel - 11) << 4) | 0x03));
}
void Mrf24j::init(void) {
// Seems a bit ridiculous when I use reset pin anyway
write_short(MRF_SOFTRST, 0x7); // from manual
while (read_short(MRF_SOFTRST) & 0x7 != 0) {
; // wait for soft reset to finish
}
write_short(MRF_PACON2, 0x98); // Initialize FIFOEN = 1 and TXONTS = 0x6.
write_short(MRF_TXSTBL, 0x95); // Initialize RFSTBL = 0x9.
write_long(MRF_RFCON0, 0x03); // Initialize RFOPT = 0x03.
write_long(MRF_RFCON1, 0x01); // Initialize VCOOPT = 0x02.
write_long(MRF_RFCON2, 0x80); // Enable PLL (PLLEN = 1).
write_long(MRF_RFCON6, 0x90); // Initialize TXFIL = 1 and 20MRECVR = 1.
write_long(MRF_RFCON7, 0x80); // Initialize SLPCLKSEL = 0x2 (100 kHz Internal oscillator).
write_long(MRF_RFCON8, 0x10); // Initialize RFVCO = 1.
write_long(MRF_SLPCON1, 0x21); // Initialize CLKOUTEN = 1 and SLPCLKDIV = 0x01.
// Configuration for nonbeacon-enabled devices (see Section 3.8 “Beacon-Enabled and
// Nonbeacon-Enabled Networks”):
write_short(MRF_BBREG2, 0x80); // Set CCA mode to ED
write_short(MRF_CCAEDTH, 0x60); // Set CCA ED threshold.
write_short(MRF_BBREG6, 0x40); // Set appended RSSI value to RXFIFO.
set_interrupts();
set_channel(12);
// max power is by default.. just leave it...
// Set transmitter power - See “REGISTER 2-62: RF CONTROL 3 REGISTER (ADDRESS: 0x203)”.
write_short(MRF_RFCTL, 0x04); // Reset RF state machine.
write_short(MRF_RFCTL, 0x00); // part 2
gpioSleep(0, 0, 1000); // delay at least 192usec
}
/**
* Call this from within an interrupt handler connected to the MRFs output
* interrupt pin. It handles reading in any data from the module, and letting it
* continue working.
* Only the most recent data is ever kept.
*/
void Mrf24j::interrupt_handler(void) {
uint8_t last_interrupt = read_short(MRF_INTSTAT);
if (last_interrupt & MRF_I_RXIF) {
flag_got_rx++;
// read out the packet data...
rx_disable();
// read start of rxfifo for, has 2 bytes more added by FCS. frame_length = m + n + 2
uint8_t frame_length = read_long(0x300);
// buffer all bytes in PHY Payload
if(bufPHY){
int rb_ptr = 0;
for (int i = 0; i < frame_length; i++) { // from 0x301 to (0x301 + frame_length -1)
rx_buf[rb_ptr++] = read_long(0x301 + i);
}
}
// buffer data bytes
int rd_ptr = 0;
// from (0x301 + bytes_MHR) to (0x301 + frame_length - bytes_nodata - 1)
for (int i = 0; i < rx_datalength(); i++) {
rx_info.rx_data[rd_ptr++] = read_long(0x301 + bytes_MHR + i);
}
rx_info.frame_length = frame_length;
// same as datasheet 0x301 + (m + n + 2) <-- frame_length
rx_info.lqi = read_long(0x301 + frame_length);
// same as datasheet 0x301 + (m + n + 3) <-- frame_length + 1
rx_info.rssi = read_long(0x301 + frame_length + 1);
rx_enable();
}
if (last_interrupt & MRF_I_TXNIF) {
flag_got_tx++;
uint8_t tmp = read_short(MRF_TXSTAT);
// 1 means it failed, we want 1 to mean it worked.
tx_info.tx_ok = !(tmp & ~(1 << TXNSTAT));
tx_info.retries = tmp >> 6;
tx_info.channel_busy = (tmp & (1 << CCAFAIL));
}
}
/**
* Call this function periodically, it will invoke your nominated handlers
*/
void Mrf24j::check_flags(){
// TODO - we could check whether the flags are > 1 here, indicating data was lost?
if (flag_got_rx) {
flag_got_rx = 0;
this->rx_handler();
}
if (flag_got_tx) {
flag_got_tx = 0;
this->tx_handler();
}
}
/**
* Set RX mode to promiscuous, or normal
*/
void Mrf24j::set_promiscuous(boolean enabled) {
if (enabled) {
write_short(MRF_RXMCR, 0x01);
} else {
write_short(MRF_RXMCR, 0x00);
}
}
rx_info_t * Mrf24j::get_rxinfo(void) {
return &rx_info;
}
tx_info_t * Mrf24j::get_txinfo(void) {
return &tx_info;
}
uint8_t * Mrf24j::get_rxbuf(void) {
return rx_buf;
}
int Mrf24j::rx_datalength(void) {
return rx_info.frame_length - bytes_nodata;
}
void Mrf24j::set_ignoreBytes(int ib) {
// some modules behaviour
ignoreBytes = ib;
}
/**
* Set bufPHY flag to buffer all bytes in PHY Payload, or not
*/
void Mrf24j::set_bufferPHY(boolean bp) {
bufPHY = bp;
}
boolean Mrf24j::get_bufferPHY(void) {
return bufPHY;
}
/**
* Set PA/LNA external control
*/
void Mrf24j::set_palna(boolean enabled) {
if (enabled) {
write_long(MRF_TESTMODE, 0x07); // Enable PA/LNA on MRF24J40MB module.
}else{
write_long(MRF_TESTMODE, 0x00); // Disable PA/LNA on MRF24J40MB module.
}
}
void Mrf24j::rx_flush(void) {
write_short(MRF_RXFLUSH, 0x01);
}
void Mrf24j::rx_disable(void) {
write_short(MRF_BBREG1, 0x04); // RXDECINV - disable receiver
}
void Mrf24j::rx_enable(void) {
write_short(MRF_BBREG1, 0x00); // RXDECINV - enable receiver
}
void Mrf24j::enable_wake() {
write_short(MRF_RXFLUSH, 0x60); // Enable WAKE pin and set polarity to active-high
write_short(MRF_WAKECON, 0x80); // Enable Immediate Wake-up mode
}
void Mrf24j::sleep() {
write_short(MRF_SOFTRST, 0x04); // Perform a Power Management Reset
write_short(MRF_SLPACK, 0x80); // Put MRF24J40 to Sleep immediately
}
void Mrf24j::wake() {
driver::wake();
write_short(MRF_RFCTL, 0x04); // RF State Machine reset
write_short(MRF_RFCTL, 0x00);
gpioSleep(0, 0 ,2000); // Delay 2 ms to allow 20 MHz main oscillator time to stabilize before transmitting or receiving.
}
void Mrf24j::turbo() {
write_short(MRF_BBREG0, 0x01);
write_short(MRF_BBREG3, (1<<5)|(1<<4));
write_short(MRF_BBREG4, (1<<6));
write_short(MRF_SOFTRST, (1<<1));
}
void Mrf24j::set_power(byte level) {
write_short(MRF_RFCON3, level);
}

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/*
* File: mrf24j.h
* copyright Karl Palsson, karlp@tweak.net.au, 2011
* modified BSD License / apache license
*/
typedef unsigned char uint8_t;
typedef unsigned char byte;
typedef unsigned int word;
typedef bool boolean;
#ifndef LIB_MRF24J_H
#define LIB_MRF24J_H
#define MRF_RXMCR 0x00
#define MRF_PANIDL 0x01
#define MRF_PANIDH 0x02
#define MRF_SADRL 0x03
#define MRF_SADRH 0x04
#define MRF_EADR0 0x05
#define MRF_EADR1 0x06
#define MRF_EADR2 0x07
#define MRF_EADR3 0x08
#define MRF_EADR4 0x09
#define MRF_EADR5 0x0A
#define MRF_EADR6 0x0B
#define MRF_EADR7 0x0C
#define MRF_RXFLUSH 0x0D
//#define MRF_Reserved 0x0E
//#define MRF_Reserved 0x0F
#define MRF_ORDER 0x10
#define MRF_TXMCR 0x11
#define MRF_ACKTMOUT 0x12
#define MRF_ESLOTG1 0x13
#define MRF_SYMTICKL 0x14
#define MRF_SYMTICKH 0x15
#define MRF_PACON0 0x16
#define MRF_PACON1 0x17
#define MRF_PACON2 0x18
//#define MRF_Reserved 0x19
#define MRF_TXBCON0 0x1A
// TXNCON: TRANSMIT NORMAL FIFO CONTROL REGISTER (ADDRESS: 0x1B)
#define MRF_TXNCON 0x1B
#define MRF_TXNTRIG 0
#define MRF_TXNSECEN 1
#define MRF_TXNACKREQ 2
#define MRF_INDIRECT 3
#define MRF_FPSTAT 4
#define MRF_TXG1CON 0x1C
#define MRF_TXG2CON 0x1D
#define MRF_ESLOTG23 0x1E
#define MRF_ESLOTG45 0x1F
#define MRF_ESLOTG67 0x20
#define MRF_TXPEND 0x21
#define MRF_WAKECON 0x22
#define MRF_FRMOFFSET 0x23
// TXSTAT: TX MAC STATUS REGISTER (ADDRESS: 0x24)
#define MRF_TXSTAT 0x24
#define TXNRETRY1 7
#define TXNRETRY0 6
#define CCAFAIL 5
#define TXG2FNT 4
#define TXG1FNT 3
#define TXG2STAT 2
#define TXG1STAT 1
#define TXNSTAT 0
#define MRF_TXBCON1 0x25
#define MRF_GATECLK 0x26
#define MRF_TXTIME 0x27
#define MRF_HSYMTMRL 0x28
#define MRF_HSYMTMRH 0x29
#define MRF_SOFTRST 0x2A
//#define MRF_Reserved 0x2B
#define MRF_SECCON0 0x2C
#define MRF_SECCON1 0x2D
#define MRF_TXSTBL 0x2E
//#define MRF_Reserved 0x2F
#define MRF_RXSR 0x30
#define MRF_INTSTAT 0x31
#define MRF_INTCON 0x32
#define MRF_GPIO 0x33
#define MRF_TRISGPIO 0x34
#define MRF_SLPACK 0x35
#define MRF_RFCTL 0x36
#define MRF_SECCR2 0x37
#define MRF_BBREG0 0x38
#define MRF_BBREG1 0x39
#define MRF_BBREG2 0x3A
#define MRF_BBREG3 0x3B
#define MRF_BBREG4 0x3C
//#define MRF_Reserved 0x3D
#define MRF_BBREG6 0x3E
#define MRF_CCAEDTH 0x3F
#define MRF_RFCON0 0x200
#define MRF_RFCON1 0x201
#define MRF_RFCON2 0x202
#define MRF_RFCON3 0x203
#define MRF_RFCON5 0x205
#define MRF_RFCON6 0x206
#define MRF_RFCON7 0x207
#define MRF_RFCON8 0x208
#define MRF_SLPCAL0 0x209
#define MRF_SLPCAL1 0x20A
#define MRF_SLPCAL2 0x20B
#define MRF_RSSI 0x210
#define MRF_SLPCON0 0x211
#define MRF_SLPCON1 0x220
#define MRF_WAKETIMEL 0x222
#define MRF_WAKETIMEH 0x223
#define MRF_REMCNTL 0x224
#define MRF_REMCNTH 0x225
#define MRF_MAINCNT0 0x226
#define MRF_MAINCNT1 0x227
#define MRF_MAINCNT2 0x228
#define MRF_MAINCNT3 0x229
#define MRF_TESTMODE 0x22F
#define MRF_ASSOEADR1 0x231
#define MRF_ASSOEADR2 0x232
#define MRF_ASSOEADR3 0x233
#define MRF_ASSOEADR4 0x234
#define MRF_ASSOEADR5 0x235
#define MRF_ASSOEADR6 0x236
#define MRF_ASSOEADR7 0x237
#define MRF_ASSOSADR0 0x238
#define MRF_ASSOSADR1 0x239
#define MRF_UPNONCE0 0x240
#define MRF_UPNONCE1 0x241
#define MRF_UPNONCE2 0x242
#define MRF_UPNONCE3 0x243
#define MRF_UPNONCE4 0x244
#define MRF_UPNONCE5 0x245
#define MRF_UPNONCE6 0x246
#define MRF_UPNONCE7 0x247
#define MRF_UPNONCE8 0x248
#define MRF_UPNONCE9 0x249
#define MRF_UPNONCE10 0x24A
#define MRF_UPNONCE11 0x24B
#define MRF_UPNONCE12 0x24C
#define MRF_I_RXIF 0b00001000
#define MRF_I_TXNIF 0b00000001
#define MRF_S_WAKEPOL (1<<6)
#define MRF_S_PAKEPAD (1<<5)
#define MRF_S_IMMWAKE (1<<8)
#define MRF_S_SLPACK (1<<7)
#define MRF_S_RFRST (1<<2)
typedef struct _rx_info_t{
uint8_t frame_length;
uint8_t rx_data[116]; //max data length = (127 aMaxPHYPacketSize - 2 Frame control - 1 sequence number - 2 panid - 2 shortAddr Destination - 2 shortAddr Source - 2 FCS)
uint8_t lqi;
uint8_t rssi;
} rx_info_t;
/**
* Based on the TXSTAT register, but "better"
*/
typedef struct _tx_info_t{
uint8_t tx_ok:1;
uint8_t retries:2;
uint8_t channel_busy:1;
} tx_info_t;
class Mrf24j
{
public:
Mrf24j();
void reset(void);
void init(void);
void handlers(void (*rx_handler)(void), void (*tx_handler)(void));
byte read_short(byte address);
byte read_long(word address);
void write_short(byte address, byte data);
void write_long(word address, byte data);
word get_pan(void);
void set_pan(word panid);
void address16_write(word address16);
word address16_read(void);
void set_interrupts(void);
void set_promiscuous(boolean enabled);
/**
* Set the channel, using 802.15.4 channel numbers (11..26)
*/
void set_channel(byte channel);
void rx_enable(void);
void rx_disable(void);
/** If you want to throw away rx data */
void rx_flush(void);
rx_info_t * get_rxinfo(void);
tx_info_t * get_txinfo(void);
uint8_t * get_rxbuf(void);
int rx_datalength(void);
void set_ignoreBytes(int ib);
/**
* Set bufPHY flag to buffer all bytes in PHY Payload, or not
*/
void set_bufferPHY(boolean bp);
boolean get_bufferPHY(void);
/**
* Set PA/LNA external control
*/
void set_palna(boolean enabled);
void send(word dest16, char * data, int len);
void send_str(word dest16, char * data);
void interrupt_handler(void);
void check_flags();
void enable_wake();
void sleep();
void wake();
void turbo();
void set_power(byte level);
private:
int _pin_reset;
int _pin_cs;
int _pin_int;
void (*rx_handler)(void);
void (*tx_handler)(void);
};
#endif /* LIB_MRF24J_H */

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/**
* Example code for using a microchip mrf24j40 module to send and receive
* packets using plain 802.15.4
* Requirements: 3 pins for spi, 3 pins for reset, chip select and interrupt
* notifications
* This example file is considered to be in the public domain
* Originally written by Karl Palsson, karlp@tweak.net.au, March 2011
*/
#define F_CPU 8000000UL
#include "../../src/mrf24j.h"
#include "../usart/src/usart.h"
#include <pigpio.h>
Mrf24j mrf;
void handle_rx();
void handle_tx();
int main() {
mrf.reset();
mrf.init();
mrf.set_pan(0xcafe);
mrf.set_bufferPHY(true);
// This is _our_ address
mrf.address16_write(0x4202);
mrf.handlers(&handle_rx, &handle_tx);
//mrf.turbo();
printf("Started");
while(1) {
printf("Hello\n\r");
_delay_ms(2000);
}
}
void handle_rx() {
printf("------------------------------------------------------\n\r");
printf("received a packet %i bytes long\n\r", mrf.get_rxinfo()->frame_length);
if(mrf.get_bufferPHY()){
printf("Packet data (PHY Payload): ");
for (int i = 0; i < mrf.get_rxinfo()->frame_length; i++) {
printf("%x", mrf.get_rxbuf()[i]);
}
}
printf("\r\nASCII data (relevant data): ");
for (int i = 0; i < mrf.rx_datalength(); i++) {
putchar(mrf.get_rxinfo()->rx_data[i]);
}
printf("LQI/RSSI=");
printf("%i/%i\n\r", mrf.get_rxinfo()->lqi, mrf.get_rxinfo()->rssi);
}
void handle_tx() {
if (mrf.get_txinfo()->tx_ok) {
printf("TX went ok, got ack\n\r");
} else {
printf("TX failed after %i retries\n\n\r", mrf.get_txinfo()->retries);
}
}

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test/tx/main.cpp Executable file
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/**
* Example code for using a microchip mrf24j40 module to send and receive
* packets using plain 802.15.4
* Requirements: 3 pins for spi, 3 pins for reset, chip select and interrupt
* notifications
* This example file is considered to be in the public domain
* Originally written by Karl Palsson, karlp@tweak.net.au, March 2011
*/
#define F_CPU 8000000UL
#include "../../src/mrf24j.h"
#include "../../src/driver.h"
#include <stdio.h>
#include <pigpio.h>
Mrf24j mrf;
int i = 0;
void handle_rx();
void handle_tx();
int main() {
mrf.reset();
mrf.init();
time_sleep(1);
mrf.set_pan(0xcafe);
// This is _our_ address
mrf.address16_write(0x4201);
mrf.handlers(&handle_rx, &handle_tx);
printf("Pan id: %x\n\r", mrf.get_pan());
//mrf.enable_wake();
//mrf.set_bufferPHY(true);
//mrf.turbo();
//mrf.set_power(0b1100000);
//mrf.sleep();
printf("Started\n\r");
char tmp[20];
while(1) {
printf("txxxing... %i\n\r", i++);
//mrf.wake();
sprintf(tmp,"Received %i\n\r", i);
mrf.send_str(0x4202, tmp);
time_sleep(2);
}
}
void handle_rx() {
printf("received a packet %i bytes long\n\r", mrf.get_rxinfo()->frame_length);
if(mrf.get_bufferPHY()){
printf("Packet data (PHY Payload):\n\r");
for (int i = 0; i < mrf.get_rxinfo()->frame_length; i++) {
printf("%i", mrf.get_rxbuf()[i]);
}
}
// printf("\r\nASCII data (relevant data):\n\r");
// for (int i = 0; i < mrf.rx_datalength(); i++) {
// usart::put(mrf.get_rxinfo()->rx_data[i]);
// }
printf("\r\nLQI/RSSI=");
printf("%i/%i\n\r", mrf.get_rxinfo()->lqi, mrf.get_rxinfo()->rssi);
}
void handle_tx() {
if (mrf.get_txinfo()->tx_ok) {
printf("TX went ok, got ack %i\n\r", i);
} else {
printf("TX failed after %i retries\n\n\r", mrf.get_txinfo()->retries);
}
printf("Sleeping\n\r");
//mrf.sleep();
}