1、资料
ESP32 开发环境 Espressif-IDE:
https://blog.csdn.net/chuner0425/article/details/123466848
开发板资料:https://wiki.luatos.com/chips/esp32c3/hardware.html
API资料:https://docs.espressif.com/projects/esp-idf/zh_CN/latest/esp32c3/api-reference/peripherals/gpio.html
头文件路径:components/esp_driver_gpio/include/driver/gpio.h
应用示例路径:GPIO 输出和输入中断示例:peripherals/gpio/generic_gpio。
c
程序调试的Log是可以在程序中选择:
esp_log_level_set( TAG, ESP_LOG_INFO );
ESP_LOG_NONE: 禁用所有日志输出
ESP_LOG_ERROR: 仅输出错误信息
ESP_LOG_WARN: 输出警告和错误信息
ESP_LOG_INFO: 输出信息、警告和错误信息
ESP_LOG_DEBUG: 输出调试、信息、警告和错误信息
ESP_LOG_VERBOSE: 输出所有日志信息
vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS); //延时1s
时钟速率设为1000hz,时间片是1ms
及portTICK_PERIOD_MS=1000/configTICK_RATE_HZ=1ms
所以vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS);
等价于vTaskDelay(1000/1000)=vTaskDelay(1)=1s
------------------------------------------------
#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "led_strip.h"
#include "sdkconfig.h"
static const char *TAG = "LED";
#define LED1_GPIO 12
#define LED2_GPIO 13
static uint8_t s_led_state = 0;
static led_strip_handle_t led_strip;
static void blink_led(void)
{
/* Set the GPIO level according to the state (LOW or HIGH)*/
gpio_set_level(LED1_GPIO, s_led_state);
gpio_set_level(LED2_GPIO, s_led_state);
}
static void configure_led(void)
{
/* Set the GPIO as a push/pull output */
gpio_reset_pin(LED1_GPIO);
gpio_set_direction(LED1_GPIO, GPIO_MODE_OUTPUT);
gpio_reset_pin(LED2_GPIO);
gpio_set_direction(LED2_GPIO, GPIO_MODE_OUTPUT);
}
void app_main(void)
{
configure_led();
esp_log_level_set(TAG, ESP_LOG_VERBOSE);
while (1)
{
ESP_LOGI(TAG, "Turning the LED %s!", s_led_state == true ? "ON" : "OFF");
blink_led();
/* Toggle the LED state */
s_led_state = !s_led_state;
vTaskDelay(CONFIG_BLINK_PERIOD / portTICK_PERIOD_MS);
}
}
运行后打印的:
I (3927313) LED: Turning the LED ON!
I (3928313) LED: Turning the LED OFF!
2、创建线程的LED闪烁
c
#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/gpio.h"
#include "esp_log.h"
#include "led_strip.h"
#include "sdkconfig.h"
static const char *TAG = "LED";
#define LED1_GPIO 12
#define LED2_GPIO 13
static uint8_t s_led_state = 0;
static led_strip_handle_t led_strip;
static void blink_led(void)
{
/* Set the GPIO level according to the state (LOW or HIGH)*/
gpio_set_level(LED1_GPIO, s_led_state);
gpio_set_level(LED2_GPIO, s_led_state);
}
static void configure_led(void)
{
/* Set the GPIO as a push/pull output */
gpio_reset_pin(LED1_GPIO);
gpio_set_direction(LED1_GPIO, GPIO_MODE_OUTPUT);
gpio_reset_pin(LED2_GPIO);
gpio_set_direction(LED2_GPIO, GPIO_MODE_OUTPUT);
}
static void LED_task(void *pvParameters)
{
while (1)
{
s_led_state = !s_led_state;
blink_led();
ESP_LOGI(TAG, "LED_task the LED %s!", s_led_state == true ? "ON" : "OFF");
vTaskDelay(1000 / portTICK_PERIOD_MS); //1000ms
}
}
void app_main(void)
{
configure_led();
esp_log_level_set(TAG, ESP_LOG_VERBOSE);
xTaskCreate(&LED_task, "LED_task", 2048, NULL, 5, NULL); // 创建任务
while (1)
{
vTaskDelay(5000 / portTICK_PERIOD_MS); //5000ms
}
}