Espressif ESP32-S2 - Page 234

Chapter 2. API Reference
• idx: Filter index.
• config: See adc_digi_filter_t.
esp_err_t adc_digi_filter_get_config(adc_digi_filter_idx_t idx, adc_digi_filter_t *config)
Get adc digital controller filter configuration.
Note For ESP32S2, Filter IDX0/IDX1 can only be used to filter all enabled channels of ADC1/ADC2 unit at
the same time.
Return
• ESP_OK Success
Parameters
• idx: Filter index.
• config: See adc_digi_filter_t.
esp_err_t adc_digi_filter_enable(adc_digi_filter_idx_t idx, bool enable)
Enable/disable adc digital controller filter. Filtering the ADC data to obtain smooth data at higher sampling
rates.
Note For ESP32S2, Filter IDX0/IDX1 can only be used to filter all enabled channels of ADC1/ADC2 unit at
the same time.
Return
• ESP_OK Success
Parameters
• idx: Filter index.
• enable: Enable/Disable filter.
esp_err_t adc_digi_monitor_set_config(adc_digi_monitor_idx_t idx, adc_digi_monitor_t
*config)
Config monitor of adc digital controller.
Note For ESP32S2, The monitor will monitor all the enabled channel data of the each ADC unit at the same
time.
Return
• ESP_OK Success
Parameters
• idx: Monitor index.
• config: See adc_digi_monitor_t.
esp_err_t adc_digi_monitor_enable(adc_digi_monitor_idx_t idx, bool enable)
Enable/disable monitor of adc digital controller.
Note For ESP32S2, The monitor will monitor all the enabled channel data of the each ADC unit at the same
time.
Return
• ESP_OK Success
Parameters
• idx: Monitor index.
• enable: True or false enable monitor.
Structures
struct adc_digi_init_config_s
ADC DMA driver configuration.
Public Members
uint32_t max_store_buf_size
Max length of the converted data that driver can store before they are processed.
uint32_t conv_num_each_intr
Bytes of data that can be converted in 1 interrupt.
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