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mcpwm: new function to fetch capture resolution

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morris
2022-10-09 11:14:44 +08:00
parent 1af428dff3
commit 0db5909b47
4 changed files with 25 additions and 6 deletions
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12
components/driver/include/driver/mcpwm_cap.h
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@@ -94,6 +94,18 @@ esp_err_t mcpwm_capture_timer_start(mcpwm_cap_timer_handle_t cap_timer);
*/
esp_err_t mcpwm_capture_timer_stop(mcpwm_cap_timer_handle_t cap_timer);
/**
* @brief Get MCPWM capture timer resolution, in Hz
*
* @param[in] cap_timer MCPWM capture timer, allocated by `mcpwm_new_capture_timer()`
* @param[out] out_resolution Returned capture timer resolution, in Hz
* @return
* - ESP_OK: Get capture timer resolution successfully
* - ESP_ERR_INVALID_ARG: Get capture timer resolution failed because of invalid argument
* - ESP_FAIL: Get capture timer resolution failed because of other error
*/
esp_err_t mcpwm_capture_timer_get_resolution(mcpwm_cap_timer_handle_t cap_timer, uint32_t *out_resolution);
/**
* @brief MCPWM Capture timer sync phase configuration
*/