diff options
author | Christian Pointner <equinox@helsinki.at> | 2014-06-01 22:25:17 (GMT) |
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committer | Christian Pointner <equinox@helsinki.at> | 2014-06-01 22:25:17 (GMT) |
commit | faacc869355202efac7c72b2d0b35dfc27aaa974 (patch) | |
tree | 0a11b67bea451a8bd02a5b7e9cfa3d6c5ffbf18c /software/rhmixxx/gpio.c | |
parent | 6d858fbbc63b96fec3fcdb6bb009cabed36c4b11 (diff) |
added gpio subsystem
Diffstat (limited to 'software/rhmixxx/gpio.c')
-rw-r--r-- | software/rhmixxx/gpio.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/software/rhmixxx/gpio.c b/software/rhmixxx/gpio.c new file mode 100644 index 0000000..6edf376 --- /dev/null +++ b/software/rhmixxx/gpio.c @@ -0,0 +1,38 @@ +/* + * rhmidi + * + * Copyright (C) 2014 Christian Pointner <equinox@helsinki.at> + * + * This file is part of rhmidi. + * + * rhmidi 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, either version 3 of the License, or + * any later version. + * + * rhmidi 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 rhmidi. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <avr/io.h> +#include "gpio.h" + +#define GPIO_PIN PINE +#define GPIO_PORT PORTE +#define GPIO_DDR DDRE + +void gpio_init(void) +{ + GPIO_DDR = 0x0F; + GPIO_PORT = 0xFA; +} + +void gpio_task(void) +{ + GPIO_PORT ^= 0x0F; +} |