diff options
Diffstat (limited to 'serial-led/serial-led.c')
-rw-r--r-- | serial-led/serial-led.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/serial-led/serial-led.c b/serial-led/serial-led.c new file mode 100644 index 0000000..8f10f9c --- /dev/null +++ b/serial-led/serial-led.c @@ -0,0 +1,50 @@ +/* + * spreadspace rppico utils + * + * + * Copyright (C) 2013-2018 Christian Pointner <equinox@spreadspace.org> + * + * This file is part of spreadspace rppico utils. + * + * spreadspace rppico utils 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. + * + * spreadspace rppico utils 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 spreadspace rppico utils. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdio.h> +#include "pico/stdlib.h" + +const uint LED_PIN = PICO_DEFAULT_LED_PIN; + +void handle_cmd(uint8_t cmd) +{ + switch(cmd) { + case '0': gpio_put(LED_PIN, 0); break; + case '1': gpio_put(LED_PIN, 1); break; + default: printf("error\r\n"); return; + } + printf("ok\r\n"); +} + +int main() +{ + gpio_init(LED_PIN); + gpio_set_dir(LED_PIN, GPIO_OUT); + stdio_init_all(); + + for(;;) { + int cmd = getchar_timeout_us(100000); + if(cmd != PICO_ERROR_TIMEOUT) { + handle_cmd(cmd); + } + } +} |