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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <joerg@FreeBSD.ORG> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Joerg Wunsch
* ----------------------------------------------------------------------------
*
* Stdio demo
*
* $Id: stdiodemo.c,v 1.1 2005/12/28 21:38:59 joerg_wunsch Exp $
*/
#include "defines.h"
#include <ctype.h>
#include <stdint.h>
#include <stdio.h>
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <util/delay.h>
#include "lcd.h"
#include "uart.h"
/*
* Do all the startup-time peripheral initializations.
*/
static void
ioinit(void)
{
uart_init();
lcd_init();
}
FILE uart_str = FDEV_SETUP_STREAM(uart_putchar, uart_getchar, _FDEV_SETUP_RW);
FILE lcd_str = FDEV_SETUP_STREAM(lcd_putchar, NULL, _FDEV_SETUP_WRITE);
static void
delay_1s(void)
{
uint8_t i;
for (i = 0; i < 100; i++)
_delay_ms(10);
}
int
main(void)
{
uint8_t i;
char buf[20], s[20];
ioinit();
stdout = stdin = &uart_str;
stderr = &lcd_str;
fprintf(stderr, "Hello world!\n");
for (;;)
{
printf_P(PSTR("Enter command: "));
if (fgets(buf, sizeof buf - 1, stdin) == NULL)
break;
if (tolower(buf[0]) == 'q')
break;
switch (tolower(buf[0]))
{
default:
printf("Unknown command: %s\n", buf);
break;
case 'l':
if (sscanf(buf, "%*s %s", s) > 0)
{
fprintf(&lcd_str, "Got %s\n", s);
printf("OK\n");
}
else
{
printf("sscanf() failed\n");
}
break;
case 'u':
if (sscanf(buf, "%*s %s", s) > 0)
{
fprintf(&uart_str, "Got %s\n", s);
printf("OK\n");
}
else
{
printf("sscanf() failed\n");
}
break;
}
}
fprintf(stderr, "Bye-bye");
delay_1s();
for (i = 0; i < 3; i++)
{
putc('.', stderr);
delay_1s();
}
fprintf(stderr, "\n ");
return 0;
}
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