espressif/ESP8266_RTOS_SDK
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bugfix(pwm): support fractional phase

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* Supports fractional phase, making the phase function produce higher precision waveforms.
* Enhanced stability
This commit is contained in:
xiongyu
2020-06-04 14:17:59 +08:00
parent ac10b42802
commit 72cbf0d55e
4 changed files with 17 additions and 17 deletions
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8
components/esp8266/include/driver/pwm.h
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@ -145,13 +145,13 @@ esp_err_t pwm_set_duties(uint32_t *duties);
*
* @param channel_num PWM channel number
* the channel_num cannot exceed the value initialized by pwm_init.
* @param phase The phase of this PWM channel, the phase range is (-180 ~ 180).
* @param phase The phase of this PWM channel, the phase range is (-180 ~ 180].
*
* @return
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pwm_set_phase(uint8_t channel_num, int16_t phase);
esp_err_t pwm_set_phase(uint8_t channel_num, float phase);
/**
* @brief Set the phase of all channels.
@ -164,7 +164,7 @@ esp_err_t pwm_set_phase(uint8_t channel_num, int16_t phase);
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pwm_set_phases(int16_t *phases);
esp_err_t pwm_set_phases(float *phases);
/**
* @brief Get the phase of a PWM channel.
@ -177,7 +177,7 @@ esp_err_t pwm_set_phases(int16_t *phases);
* - ESP_OK Success
* - ESP_ERR_INVALID_ARG Parameter error
*/
esp_err_t pwm_get_phase(uint8_t channel_num, uint16_t *phase_p);
esp_err_t pwm_get_phase(uint8_t channel_num, float *phase_p);
/**
* @brief Set PWM period and duty of each PWM channel.