80 lines
1.6 KiB
C++
80 lines
1.6 KiB
C++
/**
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* Example code for using a microchip mrf24j40 module to send and receive
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* packets using plain 802.15.4
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* Requirements: 3 pins for spi, 3 pins for reset, chip select and interrupt
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* notifications
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* This example file is considered to be in the public domain
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* Originally written by Karl Palsson, karlp@tweak.net.au, March 2011
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*/
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include "../../lib/mrf24j.h"
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#include "../../lib/usart.h"
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#include "../../lib/spi.h"
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const int pin_reset = 5;
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const int pin_cs = 10; // default CS pin on ATmega8/168/328
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const int pin_interrupt = 2; // default interrupt pin on ATmega8/168/328
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Mrf24j mrf;
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void handle_rx();
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void handle_tx();
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int main() {
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usart::init(50000);
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spi::init();
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mrf.reset();
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mrf.init();
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mrf.set_pan(0xcafe);
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// This is _our_ address
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mrf.address16_write(0x4202);
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// uncomment if you want to receive any packet on this channel
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//mrf.set_promiscuous(true);
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// uncomment if you want to enable PA/LNA external control
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//mrf.set_palna(true);
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// uncomment if you want to buffer all PHY Payload
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//mrf.set_bufferPHY(true);
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MCUCSR |= (1<<ISC00); // INT2 falling edge
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GICR |= (1<<INT0);
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sei();
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DDRA |= (1<<PA0);
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while(1) {
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PORTA |= (1<<PA0);
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mrf.check_flags(&handle_rx, &handle_tx);
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mrf.send16(0x4202, "acde");
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PORTA &= ~(1<<PA0);
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_delay_ms(1000);
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}
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return 0;
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}
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ISR(INT0_vect) {
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mrf.interrupt_handler(); // mrf24 object interrupt routine
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}
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void handle_rx() {
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}
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void handle_tx() {
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if (mrf.get_txinfo()->tx_ok) {
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printf("TX went ok, got ack");
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} else {
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printf("TX failed after %i retries\n", mrf.get_txinfo()->retries);
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}
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} |