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Diffstat (limited to 'ao-bringup-avr/ao-blink.c')
| -rw-r--r-- | ao-bringup-avr/ao-blink.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/ao-bringup-avr/ao-blink.c b/ao-bringup-avr/ao-blink.c new file mode 100644 index 00000000..5694b9a3 --- /dev/null +++ b/ao-bringup-avr/ao-blink.c @@ -0,0 +1,37 @@ +/* + * Copyright © 2011 Keith Packard <keithp@keithp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +#include <avr/io.h> +#define F_CPU 16000000UL // 16 MHz +#include <util/delay.h> + +#define LEDOUT PORTB7 +#define LEDPORT PORTB +#define LEDDDR DDRB +#define LEDDDRPIN DD7 + +int main(void) +{ + LEDDDR |= (1 << LEDDDRPIN); + + while (1) { + LEDPORT |= (1 << LEDOUT); + _delay_ms(200); + LEDPORT &= ~(1 << LEDOUT); + _delay_ms(200); + } +} |