AliOS Things API HAL SOC PWM Guide - Shaofa/AliOS-Things-Certification-Manual GitHub Wiki

API INDEX

1-hal_pwm_init

int32_t hal_pwm_init(pwm_dev_t *pwm)

  • Description

    Initialises a PWM pin

  • Parameters

    IN/OUT NAME DESC
    [in] pwm the PWM device

  • Returns

    0 : on success, EIO : if an error occurred with any step

2-hal_pwm_start

int32_t hal_pwm_start(pwm_dev_t *pwm)

  • Description

    Starts Pulse-Width Modulation signal output on a PWM pin

  • Parameters

    IN/OUT NAME DESC
    [in] pwm the PWM device

  • Returns

    0 : on success, EIO : if an error occurred with any step

3-hal_pwm_stop

int32_t hal_pwm_stop(pwm_dev_t *pwm)

  • Description

    Stops output on a PWM pin

  • Parameters

    IN/OUT NAME DESC
    [in] pwm the PWM device

  • Returns

    0 : on success, EIO : if an error occurred with any step

4-hal_pwm_finalize

int32_t hal_pwm_finalize(pwm_dev_t *pwm)

  • Description

    finalize output on a PWM pin

  • Parameters

    IN/OUT NAME DESC
    [in] pwm the PWM device

  • Returns

    0 : on success, EIO : if an error occurred with any step

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