Function esp_idf_sys::pcnt_unit_enable

pub unsafe extern "C" fn pcnt_unit_enable(
    unit: pcnt_unit_handle_t,
) -> esp_err_t

@brief Enable the PCNT unit

@note This function will transit the unit state from init to enable. @note This function will enable the interrupt service, if it’s lazy installed in pcnt_unit_register_event_callbacks(). @note This function will acquire the PM lock if it’s lazy installed in pcnt_unit_set_glitch_filter(). @note Enable a PCNT unit doesn’t mean to start it. See also pcnt_unit_start() for how to start the PCNT counter.

@param[in] unit PCNT unit handle created by pcnt_new_unit() @return - ESP_OK: Enable PCNT unit successfully - ESP_ERR_INVALID_ARG: Enable PCNT unit failed because of invalid argument - ESP_ERR_INVALID_STATE: Enable PCNT unit failed because the unit is already enabled - ESP_FAIL: Enable PCNT unit failed because of other error