Pulse Width Modulation#

sl_pwm_fault_t#

sl_pwm_fault_t

Enum to control fault a and fault b.

sl_pwm_dead_time_t#

sl_pwm_dead_time_t

Enum to control dead time.

sl_pwm_duty_cycle_t#

sl_pwm_duty_cycle_t

Enum to control duty cycle.

sl_pwm_override_t#

sl_pwm_override_t

Enum to control override.

sl_pwm_output_fault_t#

sl_pwm_output_fault_t

Enum to control output fault.

sl_pwm_event_t#

sl_pwm_event_t

Enum to control events.

sl_pwm_channel_t#

sl_pwm_channel_t

Enumeration for PWM channels(1-4)

sl_pwm_timer_t#

sl_pwm_timer_t

Enumeration for PWM timer.

sl_pwm_polarity_low_t#

sl_pwm_polarity_low_t

Enumeration for PWM polarity low.

sl_pwm_polarity_high_t#

sl_pwm_polarity_high_t

Enumeration for PWM polarity high.

sl_pwm_mode_t#

sl_pwm_mode_t

Enumeration for PWM mode.

sl_pwm_base_timer_mode_t#

sl_pwm_base_timer_mode_t

Enumeration for PWM base timer modes.

sl_pwm_output_t#

sl_pwm_output_t

Enumeration for PWM output complementary pairs.

sl_pwm_svt_t#

sl_pwm_svt_t

Enumeration for PWM special event trigger time base.

sl_pwm_post_t#

sl_pwm_post_t

Enumeration for PWM Time base output post scale bits.

sl_pwm_pre_t#

sl_pwm_pre_t

Enumeration for PWM input clock pre scale select value.

sl_pwm_fault_input_t#

sl_pwm_fault_input_t

Enumeration for fault input override value.

sl_pwm_output_override_t#

sl_pwm_output_override_t

Enumeration for output override control.

sl_pwm_override_value_t#

sl_pwm_override_value_t

Enumeration for override value.

sl_pwm_trigger_t#

sl_pwm_trigger_t

PWM enable external triggering.

sl_si91x_mcpwm_t#

typedef RSI_MCPWM_T sl_si91x_mcpwm_t

PWM structure.

sl_si91x_pwm_svt_config_t#

typedef RSI_MCPWM_SVT_CONFIG_T sl_si91x_pwm_svt_config_t

PWM Special Event trigger configuration parameters structure.

sl_si91x_pwm_dt_config_t#

typedef RSI_MCPWM_DT_CONFIG_T sl_si91x_pwm_dt_config_t

PWM DeadTime configuration parameters structure.

sl_si91x_pwm_callback_t#

typedef RSI_MCPWM_CALLBACK_T sl_si91x_pwm_callback_t

PWM Callback structure.

release#

uint8_t sl_pwm_version_t::release

Release version number.

major#

uint8_t sl_pwm_version_t::major

major version number

minor#

uint8_t sl_pwm_version_t::minor

minor version number

channel#

sl_pwm_channel_t sl_pwm_config_t::channel

PWM channel selection(ch0 to ch4)

frequency#

uint32_t sl_pwm_config_t::frequency

PWM frequency.

is_polarity_low#

boolean_t sl_pwm_config_t::is_polarity_low

PWM output polarity for low side.

is_polarity_high#

boolean_t sl_pwm_config_t::is_polarity_high

PWM output polarity for high side.

is_mode#

boolean_t sl_pwm_config_t::is_mode

PWM mode(independent/complementary)

base_time_counter_initial_value#

uint32_t sl_pwm_config_t::base_time_counter_initial_value

PWM base time counter initial value.

duty_cycle#

uint8_t sl_pwm_config_t::duty_cycle

PWM duty cycle.

base_timer_mode#

uint8_t sl_pwm_config_t::base_timer_mode

PWM base timer mode.

channel_timer_selection#

uint8_t sl_pwm_config_t::channel_timer_selection

PWM channel timer selection.

port_l#

uint8_t sl_pwm_init_t::port_l

PWM GPIO output low side port.

pin_l#

uint8_t sl_pwm_init_t::pin_l

PWM GPIO output low side pin.

port_h#

uint8_t sl_pwm_init_t::port_h

PWM GPIO output high side port.

pin_h#

uint8_t sl_pwm_init_t::pin_h

PWM GPIO output high side pin.

mux_l#

uint8_t sl_pwm_init_t::mux_l

PWM GPIO output low side mux.

mux_h#

uint8_t sl_pwm_init_t::mux_h

PWM GPIO output high side mux.

pad_l#

uint8_t sl_pwm_init_t::pad_l

PWM GPIO output low side pad.

pad_h#

uint8_t sl_pwm_init_t::pad_h

PWM GPIO output high side pad.

port#

uint8_t sl_pwm_fault_init_t::port

PWM GPIO port.

pin#

uint8_t sl_pwm_fault_init_t::pin

PWM GPIO pin.

mux#

uint8_t sl_pwm_fault_init_t::mux

PWM GPIO mux.

pad#

uint8_t sl_pwm_fault_init_t::pad

PWM GPIO pad.

sl_si91x_pwm_deinit#

void sl_si91x_pwm_deinit (void )

This API is used to de-initialize the PWM peripheral.

This will de-initialize the PWM peripheral and also it disables PWM module clock.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

Returns

• none

sl_si91x_pwm_get_version#

sl_pwm_version_t sl_si91x_pwm_get_version (void )

This API is used to get the API version of PWM.

version which includes Release, SQA and DEV version numbers of PWM Returns

• returns structure of type sl_pwm_version_t

sl_si91x_pwm_set_configuration#

sl_status_t sl_si91x_pwm_set_configuration (sl_pwm_config_t * pwm_config)

This API sets the PWM configuration parameters.

It configures the output polarity, set time period, output mode, set duty cycle set base timer mode and base timer selection for each channel.

• Pre-condition:

  • sl_si91x_pwm_init

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_set_output_polarity#

sl_status_t sl_si91x_pwm_set_output_polarity (boolean_t polarity_low, boolean_t polarity_high)

This API is used to set output polarity for Motor Control Pulse Width Modulation (MCPWM).

Setting polarity positive sets the digital pulse ON for the duty cycle and off for remainder of the period. Setting polarity negative is vice-versa of positive polarity set.

• Pre-condition:

  • sl_si91x_pwm_init

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_start#

sl_status_t sl_si91x_pwm_start (sl_pwm_channel_t channel)

This API is used to start the Motor Control Pulse Width Modulation (MCPWM).

Operation for required channel is based on duty cycle set, polarity and all other configurations done for respective channels.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_stop#

sl_status_t sl_si91x_pwm_stop (sl_pwm_channel_t channel)

This API is used to stop the Motor Control Pulse Width Modulation (MCPWM) operation for the required channel.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_control_base_timer#

sl_status_t sl_si91x_pwm_control_base_timer (sl_pwm_timer_t base_timer)

This API is used to select number of base timers as four base timers for four channels or one base timer for all channels of Motor Control Pulse Width Modulation (MCPWM).

One base timer is used when single timer to be selected for all channels. Instead of only one base timer, there is also one base timer for each channel selection, where separate base timers are used for separate channels.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_set_time_period#

sl_status_t sl_si91x_pwm_set_time_period (sl_pwm_channel_t channel, uint32_t period, uint32_t init_val)

This API is used to set time period and counter initial value for the required Motor Control Pulse Width Modulation (MCPWM) channel.

It updates the base timer period and base timer counter initial values for required channel.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_trigger_special_event#

sl_status_t sl_si91x_pwm_trigger_special_event (sl_pwm_svt_t direction, sl_si91x_pwm_svt_config_t * pwm_config)

This API is used to configure special event trigger generation for required Motor Control Pulse Width Modulation (MCPWM) channel which allows the A/D converter to be synchronized to the PWM time base.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_configure_dead_time#

sl_status_t sl_si91x_pwm_configure_dead_time (sl_si91x_pwm_dt_config_t * dead_time, sl_pwm_channel_t channel)

This API is used to configure Dead time insertion parameters for Motor Control Pulse Width Modulation (MCPWM).

Dead time is a small amount of time inserted between the switching edges of PWM signals.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_reset_channel#

sl_status_t sl_si91x_pwm_reset_channel (sl_pwm_channel_t channel)

This API is used to reset the required channel of Motor Control Pulse Width Modulation (MCPWM).

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_reset_counter#

sl_status_t sl_si91x_pwm_reset_counter (sl_pwm_channel_t channel)

This API is used to reset the counter from the required channel of Motor Control Pulse Width Modulation (MCPWM)

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_control_period#

sl_status_t sl_si91x_pwm_control_period (sl_pwm_post_t post_scale, sl_pwm_pre_t pre_scale, sl_pwm_channel_t channel)

This API is used to set base time period control for the required Motor Control Pulse Width Modulation (MCPWM) channel.

This sets the base timer output post scalar bits and base timer input clock prescalar value.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_control_fault#

sl_status_t sl_si91x_pwm_control_fault (sl_pwm_fault_t fault, sl_pwm_output_t pwm_output, sl_pwm_override_value_t value)

This API is used to control fault A/B pin output value to be overridden when fault condition occurs.

When it is asserted, these pins can optionally drive each of the PWM I/O pins to a defined state.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_set_base_timer_mode#

sl_status_t sl_si91x_pwm_set_base_timer_mode (sl_pwm_base_timer_mode_t mode, sl_pwm_channel_t channel)

This API is used to set the mode of base timer for required channel.

There are different modes set like free running mode, single event mode etc.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_set_output_mode#

sl_status_t sl_si91x_pwm_set_output_mode (sl_pwm_mode_t mode, sl_pwm_channel_t channel)

This API is used to set output mode for the Motor Control Pulse Width Modulation (MCPWM).

There are two modes we can configure i.e., independent mode (or) complementary mode.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_register_callback#

sl_status_t sl_si91x_pwm_register_callback (sl_si91x_pwm_callback_t * callback_event, uint16_t flag)

Handles all interrupt flags of Motor Control Pulse Width Modulation (MCPWM).

It handles IRQ handler, Timer interrupt and callback event which handles different events.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer

sl_si91x_pwm_unregister_callback#

sl_status_t sl_si91x_pwm_unregister_callback (uint16_t flag)

Unregisters the PWM event.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer

sl_si91x_pwm_read_counter#

sl_status_t sl_si91x_pwm_read_counter (uint16_t * counter_value, sl_pwm_channel_t channel)

This API is used to read the counter current value for required Motor Control Pulse Width Modulation (MCPWM) channel.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_get_counter_direction#

sl_status_t sl_si91x_pwm_get_counter_direction (uint8_t * counter_direction, sl_pwm_channel_t channel)

This API is used to get time period counter direction status of required Motor Control Pulse Width Modulation (MCPWM) channel whether counter up / down.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_control_dead_time#

sl_status_t sl_si91x_pwm_control_dead_time (sl_pwm_dead_time_t dead_time, uint32_t flag)

Controls dead time insertion at rise edge (or) fall edge of any four channels.

Dead time applies only to PWM output pair, which are in complementary mode.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_clear_interrupt#

sl_status_t sl_si91x_pwm_clear_interrupt (uint32_t flag)

This API is used to clear the interrupts of Motor Control Pulse Width Modulation (MCPWM)

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is a null pointer

sl_si91x_pwm_get_interrupt_status#

sl_status_t sl_si91x_pwm_get_interrupt_status (uint32_t flag, uint16_t * intr_status)

This API is used to get the interrupt status of interrupt flags of Motor Control Pulse Width Modulation (MCPWM).

Events which are raised can be identified by checking the status.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• Interrupt status of the required interrupt flag

sl_si91x_pwm_configure_duty_cycle#

sl_status_t sl_si91x_pwm_configure_duty_cycle (sl_pwm_duty_cycle_t duty_cycle, uint32_t value, sl_pwm_channel_t channel)

This API is used to control duty cycle control parameters for the required Motor Control Pulse Width Modulation (MCPWM) channel.

This API controls duty cycle parameters for the required Motor Control Pulse Width Modulation (MCPWM) channel. It can also enable (or prevent) duty cycle updating.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_output_override#

sl_status_t sl_si91x_pwm_output_override (sl_pwm_override_t override, sl_pwm_output_t pwm_output)

This API is used to control the output override operation of Motor Control Pulse Width Modulation (MCPWM).

This API controls MCPWM's output override operation. It enables you to enable or disable PWM output override.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_control_override#

sl_status_t sl_si91x_pwm_control_override (sl_pwm_override_t override, sl_pwm_output_override_t value)

This API is used to control the override control parameter and output is in sync with PWM time period depending on operating mode.

This API is used for controlling the override control parameters and also the output is synchronized with the PWM time period, depending on the operating mode.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_control_override_value#

sl_status_t sl_si91x_pwm_control_override_value (sl_pwm_override_t override, sl_pwm_output_t pwm_output, sl_pwm_override_value_t value)

This API is used to control override value for the required output of Motor Control Pulse Width Modulation (MCPWM)

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_control_output_fault#

sl_status_t sl_si91x_pwm_control_output_fault (sl_pwm_output_fault_t output_fault, uint32_t value)

This API is used to control output fault in pwm module.

This API is used to control output fault in pwm override control parameters for the required PWM output.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_control_special_event_trigger#

sl_status_t sl_si91x_pwm_control_special_event_trigger (sl_pwm_event_t event)

This API is used to control the special event trigger.

This API controls the generation of a special event trigger for the required channel of the Motor Control Pulse Width Modulation (MCPWM).

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_select_dead_time#

sl_status_t sl_si91x_pwm_select_dead_time (sl_pwm_dead_time_t dead_time, uint32_t value)

This API is used to control the dead time.

This API is used to control dead time control parameters for the required channel.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_set_duty_cycle#

sl_status_t sl_si91x_pwm_set_duty_cycle (uint32_t duty_cycle, sl_pwm_channel_t channel)

This API is used to select duty cycle for the required Motor Control Pulse Width Modulation (MCPWM) channel.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_get_duty_cycle#

sl_status_t sl_si91x_pwm_get_duty_cycle (sl_pwm_channel_t channel, uint32_t * duty_cycle)

This API is used to get duty cycle for the required Motor Control Pulse Width Modulation (MCPWM) channel.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_enable_external_trigger#

sl_status_t sl_si91x_pwm_enable_external_trigger (sl_pwm_trigger_t enable)

This API is used to enables an external trigger.

This API is used to enables the use of an external trigger for base time counter increment or decrement of Motor Control Pulse Width Modulation (MCPWM).

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_get_time_period#

sl_status_t sl_si91x_pwm_get_time_period (sl_pwm_channel_t channel, uint16_t * time_period)

Get time period for the required channel.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_init#

sl_status_t sl_si91x_pwm_init (sl_pwm_init_t * pwm_init)

This API is used to initialize PWM pins and clock.

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_fault_init#

sl_status_t sl_si91x_pwm_fault_init (sl_pwm_fault_init_t * pwm_fault)

This API is used to initialize PWM event pins.

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_OK - Success

  • SL_STATUS_NULL_POINTER - The parameter is null pointer

sl_si91x_pwm_reset_channel_disable#

sl_status_t sl_si91x_pwm_reset_channel_disable (sl_pwm_channel_t channel)

This API is used to disable the reset for the required channel of MCPWM.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success

sl_si91x_pwm_reset_counter_disable#

sl_status_t sl_si91x_pwm_reset_counter_disable (sl_pwm_channel_t channel)

This API is used to disable the counter reset for the required channel of MCPWM.

• Pre-conditions:

  • sl_si91x_pwm_init

  • sl_si91x_pwm_set_configuration

  • sl_si91x_pwm_set_base_timer_mode

  • sl_si91x_pwm_control_period

  • sl_si91x_pwm_register_callback

  • sl_si91x_pwm_start

Returns

• returns status 0 if successful, else error code as follows:

  • SL_STATUS_INVALID_PARAMETER - The parameter is an invalid argument

  • SL_STATUS_OK - Success