adc_monitor example

[xelaim]

I'm trying to use the esp32-h2 with an adc.
According to https://docs.espressif.com/projects/esp ... nuous.html i should be able to use a adc_monitor.

I've written an example, it doesn't give any error, but it doesn't work. Does anyone have a working example?

Code: [Select all] [Expand/Collapse]

1. static bool IRAM_ATTR monitor_event(adc_monitor_handle_t monitor_handle, const adc_monitor_evt_data_t *event_data, void *user_data)
2. {
3.     ESP_LOGI(TAG, "Monitor event triggered");
4.     return true;
5. }

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Setting up the monitor

Code: [Select all] [Expand/Collapse]

1.     // Set up the monitor
2.     adc_monitor_handle_t monitor_handle = NULL;
3.     adc_monitor_config_t monitor_config = {
4.         .adc_unit = ADC_UNIT_1,
5.         .channel = ADC_CHANNEL,
6.         .h_threshold = 3400,
7.         .l_threshold = 3200,
8.     };
9.     adc_monitor_evt_cbs_t cbs_monitor = {
10.         .on_over_high_thresh = monitor_event,
11.         .on_below_low_thresh = monitor_event,
12.     };
13.  
14.     ret = adc_new_continuous_monitor(handle, &monitor_config, &monitor_handle);
15.     if (ret != ESP_OK) {
16.         ESP_LOGE(TAG, "Failed to create new monitor: %s", esp_err_to_name(ret));
17.     }
18.  
19.     ret = adc_continuous_monitor_register_event_callbacks(monitor_handle, &cbs_monitor, NULL);
20.     if (ret != ESP_OK) {
21.         ESP_LOGE(TAG, "Failed to register monitor event callbacks: %s", esp_err_to_name(ret));
22.     }
23.  
24.     ret = adc_continuous_monitor_enable((adc_monitor_handle_t)monitor_handle);
25.     if (ret != ESP_OK) {
26.         ESP_LOGE(TAG, "Failed to enable ADC monitor: %s", esp_err_to_name(ret));
27.     }

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I get no errors, and i can see using my continious monitor that the values are being read.

[3w3rt0n]

I'm having the same problem, did you manage to solve it? Can you share the solution?

[3w3rt0n]

The correction is in the link if anyone needs it: https://github.com/espressif/esp-idf/issues/14769