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fix: reduce the consumption of touch sensor during deep sleep

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fuzhibo
2021-02-03 12:29:31 +08:00
committed by bot
parent c49d03b8eb
commit 6b361ed70f
11 changed files with 183 additions and 33 deletions
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16
components/driver/esp32s3/include/driver/touch_sensor.h
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@@ -577,6 +577,22 @@ esp_err_t touch_pad_sleep_channel_reset_benchmark(void);
*/
esp_err_t touch_pad_sleep_channel_read_proximity_cnt(touch_pad_t pad_num, uint32_t *proximity_cnt);
/**
* @brief Change the operating frequency of touch pad in deep sleep state. Reducing the operating frequency can effectively reduce power consumption.
* If this function is not called, the working frequency of touch in the deep sleep state is the same as that in the wake-up state.
*
* @param sleep_cycle The touch sensor will sleep after each measurement.
* sleep_cycle decide the interval between each measurement.
* t_sleep = sleep_cycle / (RTC_SLOW_CLK frequency).
* The approximate frequency value of RTC_SLOW_CLK can be obtained using rtc_clk_slow_freq_get_hz function.
* @param meas_times The times of charge and discharge in each measure process of touch channels.
* The timer frequency is 8Mhz. Range: 0 ~ 0xffff.
* Recommended typical value: Modify this value to make the measurement time around 1ms.
* @return
* - ESP_OK Success
*/
esp_err_t touch_pad_sleep_channel_set_work_time(uint16_t sleep_cycle, uint16_t meas_times);
#ifdef __cplusplus
}
#endif