表24.3.2.1函数adc_digi_controller_configure()形参描述 返回值：ESP_OK表示配置成功。其他表示配置...
需要高速ADC采样，参考example中的持续采样代码设定了ADC，调用adc_digi_controller_configure(&digi_cfg)...
今天在使用ESP32-S3的ADC时,需要高速ADC采样,参考example中的持续采样代码设定了ADC,调用adc_digi_controller_configure(&digi_cfg)提示ADC bitwidth not supported。 调用部分代码如下: [Codebox] void ESP32ADC::setHighSpeedADC() { // adc_digi初始化 // controller初始化 adc_digi_init_config_t adc_dma...
完成上述结构体参数配置之后，可以将结构传递给 adc_digi_controller_configure () 函数，用以实例化ADC...
ESP_ERROR_CHECK(adc_digi_controller_configure(&dig_cfg)); } #if !CONFIG_IDF_TARGET_ESP32 static bool check_valid_data(const adc_digi_output_data_t *data) { const unsigned int unit = data->type2.unit; if (unit > 2) return false; ...
, i, adc_pattern[i].unit); } dig_cfg.adc_pattern = adc_pattern; ESP_ERROR_CHECK(adc_digi_controller_configure(&dig_cfg)); } #if !CONFIG_IDF_TARGET_ESP32 static bool check_valid_data(const adc_digi_output_data_t *data) {
实际速率通常更低,受软件配置、滤波电路、信号源阻抗等因素影响。 分辨率与速度的权衡 若降低分辨率(如9位或10位),可提升采样速率(最高可达约500-600 kHz)。 默认12位模式下,典型实际采样率为6-10 kHz(需结合软件优化)。 分频系数配置 ADC时钟由APB总线(通常80MHz)分频得到,分频系数越大,采样率越低。例如: ...
adc_hal_digi_ctrlr_cfg_t hal_digi_ctrlr_cfg; //Hal digital controller configuration esp_pm_lock_handle_t pm_lock; //For power management } adc_digi_context_t; static adc_digi_context_t *s_adc_digi_ctx = NULL; #ifdef CONFIG_PM_ENABLE //Only for deprecated API extern esp_...
esp_err_tadc_digi_deinit(void); #endif /** * @brief Setting the digital controller. * * @param config Pointer to digital controller paramter. Refer to ``adc_digi_config_t``. * * @return * - ESP_ERR_INVALID_STATE Driver state is invalid. ...
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