0:1); // 红 gpio_set_level(GPIO_NUM_4,i%3==1?0:1); // 绿 gpio_set_level(GPIO_NUM_5,i%3==2?0:1); // 蓝 vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS); i++; if(i>2)i=0; }}2. 读取GPIO值示例 #include "driver/gpio.h"#include "...
Blink 通过开发历程(1)的方法2建立工程之后,将如下代码复制进Main.c 代码 #include <stdio.h> #include "freertos/FreeRTOS.h" #include "freertos/task.h" #include "driver/gpio.h" #include "sdkconfig.h" #define LED_R_IO 2 #define LED_G_IO 18 #define LED_B_IO 19 #define GPIO_OUTPUT_...
const struct gpio_led *leds; // 上面的结构体指针 #define GPIO_LED_NO_BLINK_LOW 0 /* No blink GPIO state low */ #define GPIO_LED_NO_BLINK_HIGH 1 /* No blink GPIO state high */ #define GPIO_LED_BLINK 2 /* Please, blink */ int (*gpio_blink_set)(unsigned gpio, int state, u...
int(*brightness_set_blocking)(structled_classdev *led_cdev,enumled_brightness brightness);--非阻塞式光强设置接口。enumled_brightness (*brightness_get)(structled_classdev *led_cdev);--获取光强。int(*blink_set)(structled_classdev *led_cdev, unsignedlong*delay_on, unsignedlong*delay_off);--闪烁...
int bl_gpio_output_set(uint8_t pin, uint8_t value); // 设置GPIO电平值，0表示低电平；1表示...
if(gpiod_line_set_value(gpiod_led->line, level) < 0) { printf("fail to set line_led value\n"); return -2; } return 0; } /*led闪烁函数*/ void blink_led(gpiod_led_t *gpiod_led, unsigned int interval) { led_control(gpiod_led, ON); ...
配置GPIO引脚为输出模式，用于控制LED的闪烁。c 复制代码 void GPIO_Init(void) { __HAL_RCC_GPIOA_...
//gpio_set_direction(BLINK_GPIO, GPIO_MODE_INPUT); //第二种方式配置 gpio_config_t io_conf; //进制中断 io_conf.intr_type = GPIO_PIN_INTR_DISABLE; //选择为输出模式 io_conf.mode = GPIO_MODE_INPUT; //配置GPIO_OUT寄存器 io_conf.pin_bit_mask = GPIO_OUTPUT_PIN_SEL; //禁止下拉 io_...
output and ground via a 330ohm resistor to see this external LED blink. Otherwise an oscilloscope can be used to see the output GPIO signal */ /* STM32F7xx HAL library initialization: - Configure the Flash prefetch - Systick timer is configured by default as source of time base, but use...
(GPIO_NUM_22,GPIO_MODE_OUTPUT);while(1){/* Blink off (output low) */printf("Turning off the LED\n");gpio_set_level(GPIO_NUM_22,0);vTaskDelay(1000/portTICK_PERIOD_MS);/* Blink on (output high) */printf("Turning on the LED\n");gpio_set_level(GPIO_NUM_22,1);vTaskDelay(...