/* * ---------------------------------------------------------------------------- * "THE BEER-WARE LICENSE" (Revision 42): * 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 #include #include #include #include #include #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; }