/* * File : blink.c * This file is part of RT-Thread RTOS * COPYRIGHT (C) 2008 - 2017, RT-Thread Development Team * * 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; either version 2 of the License, or * (at your option) any later version. * * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Change Logs: * Date Author Notes * 2017-11-8 Tangyuxin first version */ #include #include #include void blink_task(void* param) { rt_uint8_t cnt = 0; while(1) { rt_thread_delay(RT_TICK_PER_SECOND / 4); if(cnt & 0x01) gpio_set_value(BLINK_LED0_PORT,BLINK_LED0_PIN,0); else gpio_set_value(BLINK_LED0_PORT,BLINK_LED0_PIN,1); if(cnt & 0x02) gpio_set_value(BLINK_LED1_PORT,BLINK_LED1_PIN,0); else gpio_set_value(BLINK_LED1_PORT,BLINK_LED1_PIN,1); if(cnt & 0x04) gpio_set_value(BLINK_LED2_PORT,BLINK_LED2_PIN,0); else gpio_set_value(BLINK_LED2_PORT,BLINK_LED2_PIN,1); if(cnt & 0x08) gpio_set_value(BLINK_LED3_PORT,BLINK_LED3_PIN,0); else gpio_set_value(BLINK_LED3_PORT,BLINK_LED3_PIN,1); cnt ++; } } int blink_init(void) { rt_thread_t tid; tid = rt_thread_create("blink", blink_task, RT_NULL, 512, RT_THREAD_PRIORITY_MAX - 2, 10); if (tid != RT_NULL) rt_thread_startup(tid); } INIT_APP_EXPORT(blink_init);