retour.c
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#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#define PRESCALER 1024
#define TIME_SLOT 20
#define BAUDRATE 103
//// INIT SERIAL /////
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;
UCSR0B = (1<<TXEN0);
/* Set frame format */
UCSR0C = 0x06;
}
//// ENVOI DE MESSAGES /////
void send_serial(unsigned char c)
{
loop_until_bit_is_set(UCSR0A, UDRE0);
UDR0 = c;
}
void send_msg2(char Donnee[]){
while (( UCSR0A & (1<<UDRE0)) == 0){};
for (int i = 0; i < strlen(Donnee); i++){
while (( UCSR0A & (1<<UDRE0)) == 0){};
UDR0 = Donnee[i];
if (i == (strlen(Donnee) - 1)){
send_serial('\n');
send_serial('\r');
}
}
}
void send_msg(char Donnee[]){
int i=0;
for(i=0; i<strlen(Donnee); i++){
if (i==strlen(Donnee)-1){
send_serial(Donnee[i]);
send_serial('\n');
send_serial('\r');
}
else{
send_serial(Donnee[i]);
}
_delay_ms(100);
}
}
//////// RETOUR /////////
void retour(char* show_a){
send_msg2(show_a);
}