/* * Copyright (C) 2022 HiHope Open Source Organization . * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * * limitations under the License. */ #include #include #include #include "ohos_init.h" #include "cmsis_os2.h" #include "iot_gpio.h" #include "hi_io.h" #include "hi_time.h" #include "iot_pwm.h" #include "hi_pwm.h" #define GPIO0 0 #define GPIO1 1 #define GPIO9 9 #define GPIO10 10 #define GPIOFUNC 0 #define PWM_FREQ_FREQUENCY (60000) void gpio_control (unsigned int gpio, IotGpioValue value) { hi_io_set_func(gpio, GPIOFUNC); IoTGpioSetDir(gpio, IOT_GPIO_DIR_OUT); IoTGpioSetOutputVal(gpio, value); } void car_backward(void) { gpio_control(GPIO0, IOT_GPIO_VALUE0); gpio_control(GPIO1, IOT_GPIO_VALUE1); gpio_control(GPIO9, IOT_GPIO_VALUE0); gpio_control(GPIO10, IOT_GPIO_VALUE1); } void car_forward(void) { gpio_control(GPIO0, IOT_GPIO_VALUE1); gpio_control(GPIO1, IOT_GPIO_VALUE0); gpio_control(GPIO9, IOT_GPIO_VALUE1); gpio_control(GPIO10, IOT_GPIO_VALUE0); } void car_left(void) { gpio_control(GPIO0, IOT_GPIO_VALUE0); gpio_control(GPIO1, IOT_GPIO_VALUE0); gpio_control(GPIO9, IOT_GPIO_VALUE1); gpio_control(GPIO10, IOT_GPIO_VALUE0); } void car_right(void) { gpio_control(GPIO0, IOT_GPIO_VALUE1); gpio_control(GPIO1, IOT_GPIO_VALUE0); gpio_control(GPIO9, IOT_GPIO_VALUE0); gpio_control(GPIO10, IOT_GPIO_VALUE0); } void car_stop(void) { gpio_control(GPIO0, IOT_GPIO_VALUE1); gpio_control(GPIO1, IOT_GPIO_VALUE1); gpio_control(GPIO9, IOT_GPIO_VALUE1); gpio_control(GPIO10, IOT_GPIO_VALUE1); }