intr_alloc_flags = ESP_INTR_FLAG_IRAM; #endif ESP_ERROR_CHECK(uart_driver_install(ECHO_UART_PORT_NUM, BUF_SIZE * 2, 0, 0, NULL, intr_alloc_flags)); //安装 UART 驱动程序并将 UART 设置为默认配置 ESP_ERROR_CHECK(uart_param_config(ECHO_UART_PORT_NUM, &uart_config)); //设置 UART ...
参数fn – 中断处理程序函数。arg– 处理程序函数的参数intr_alloc_flags– 用于分配中断的标志。一个或多个 (ORred) ESP_INTR_FLAG_* 值。有关详细信息,请参阅 esp_intr_alloc.h。句柄 – 指向返回句柄的指针。如果非 NULL,则将在此处返回中断的句柄。返回ESP_OK成功 ;ESP_ERR_INVALID_ARG GPIO 错误ESP_...
slv_rx_buf_len and slv_tx_buf_len, The size of the RX and TX buffers. The buffers are only needed if the ESP32 is being used in the slave mode. Since we are using it as a master, we will keep these buffers as 0. intr_alloc_flagsis to set the interrupt flag for the I2C. W...
esp_err_t gpio_install_isr_service( int intr_alloc_flags ) 函数说明 使用该函数,ISR服务将提供全局GPIO的ISR,并通过gpio_isr_handler_add()函数注册各个引脚处理程序 参数如下: intr_alloc_flags:中断的类型 GPIO中断注册函数 esp_err_t gpio_isr_handler_add(gpio_num_t gpio_...
intr_alloc_flags:用于分配中断的标志,使用这个函数会占用LEDC模块的中断;esp_err_t:返回值,ESP_OK表示成功。 2.6、LEDC渐变步长 代码语言:javascript 代码运行次数:0 运行 AI代码解释 esp_err_tledc_set_fade_with_step(ledc_mode_t speed_mode,ledc_channel_t channel,uint32_t target_duty,uint32_t scale...
)(I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_MSB), .intr_alloc_flags = ESP_INTR_FLAG_LEVEL1 | ESP_INTR_FLAG_IRAM, .dma_buf_count = 16, .dma_buf_len = 60, }; i2s_pin_config_t pin_config; pin_config.bck_io_num = PIN_I2S_BCLK; pin_config.ws_io_num = PIN_I2S_LRC; pin...
esp_err_tledc_fade_func_install(intintr_alloc_flags);//参数:intr_alloc_flags:用于分配中断的标志,一般填0即可esp_err_tledc_set_fade_with_step(ledc_mode_tspeed_mode,ledc_channel_tchannel,uint32_ttarget_duty,uint32_tscale,uint32_tcycle_num);// 参数 :speed_mode:ledc速度模式,要和ledc_ch...
} //install gpio isr service esp_err_t gpio_install_isr_service(int intr_alloc_flags)//注册中断号 //hook isr handler for specific gpio pin //将中断回调函数与中断号关联起来,当中断发生时,会触发中断回调函数。 esp_err_t gpio_isr_handler_add(gpio_num_t gpio_num, gpio_isr_t isr_handler...
ESP32配置外设一般都是配置一个结构体,I2S也不例外: staticconsti2s_config_ti2s_config={.mode=I2S_MODE_MASTER|I2S_MODE_TX,.sample_rate=44100,.bits_per_sample=16,.channel_format=I2S_CHANNEL_FMT_RIGHT_LEFT,.communication_format=I2S_COMM_FORMAT_I2S|I2S_COMM_FORMAT_I2S_MSB,.intr_alloc_flags=0,...
.intr_alloc_flags=ESP_INTR_FLAG_LEVEL1, .dma_buf_count=2, .dma_buf_len=1024, .use_apll=false, .tx_desc_auto_clear=false, .fixed_mclk=0};//install and start i2s driveri2s_driver_install(I2S_NUM_0, &i2s_config,4, &i2s_queue);//init ADC padi2s_set_adc_mode(ADC_UNIT_1, ADC...