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#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "nrfm.h"
#include "uart.h"
#define RX_PIN PD7
#define RX_DDR DDRD
#define RX_PORT PORTD
#define RX_PCIE PCIE2
#define RX_PCINT PCINT23
#define RX_PCMSK PCMSK2
#define RX_PCINTVEC PCINT2_vect
static int rxdr = 0;
int main(void)
{
uint8_t n;
char s[2];
char buf[MAXPDLEN + 1];
uint8_t rxaddr[] = { 194, 178, 83 };
RX_DDR &= ~(1 << RX_PIN);
RX_PORT |= (1 << RX_PIN);
PCICR |= (1 << RX_PCIE);
RX_PCMSK |= (1 << RX_PCINT);
uart_init();
radio_init(rxaddr);
radio_print_config();
sei();
radio_listen();
for (;;) {
if (rxdr) {
n = radio_recv(buf, MAXPDLEN);
buf[n] = '\0';
uart_write("Received data: ");
uart_write(itoa(n, s, 10));
uart_write_line(" bytes");
rxdr = 0;
if (n > 0) {
uart_write("INFO: ");
uart_write_line(buf);
}
} else {
uart_write_line("No IRQ");
_delay_ms(2000);
}
}
return 0;
}
ISR(RX_PCINTVEC)
{
rxdr = 1;
}
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