arduinoToRpi.c
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#include <avr/io.h> // for the input/output register
#include <avr/interrupt.h>
#include <util/delay.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#define PRESCALER 1024
#define TIME_SLOT 20
#define NB_TICK 113
#define BAUDRATE 103
void send_serial(unsigned char c)
{
loop_until_bit_is_set(UCSR0A, UDRE0);
UDR0 = c;
}
void init_serial(void)
{
/* ACHTUNG : we suppose UBRR value < 0xff */
/* Not true in all case */
uint8_t baudrate = BAUDRATE;
/* Set baud rate */
UBRR0H = 0;
UBRR0L = baudrate;
/* Enable transmitter *///task_led_red();
//task_send_serial('A');
UCSR0B = (1<<TXEN0);
/* Set frame format */
UCSR0C = 0x06;
}
int main(void)
{
init_serial();
while(1)
{
send_serial('A');
_delay_ms(3000);
}
return 0;
}