Functions

Functions
DutyCycleUpdateFnc	BSP_PWM_ConfigInvertedPair (uint16_t pwmNo, pwm_config_t *config)
	Configures an PWM pair as inverted pair.
DutyCycleUpdateFnc	BSP_PWM_ConfigChannel (uint16_t pwmNo, pwm_config_t *config)
	Configures a PWM channel.
float	BSP_PWM_UpdatePairDuty (uint32_t pwmNo, float duty, pwm_config_t *config)
	Update the Duty Cycle of an Inverted Pair.
float	BSP_PWM_UpdateChannelDuty (uint32_t pwmNo, float duty, pwm_config_t *config)
	Update the Duty Cycle of a channel.
void	BSP_PWM_Config_Interrupt (uint32_t pwmNo, bool enable, PWMResetCallback callback, int priority)
	Enable / Disable interrupt for a PWM channel as per requirement.
void	BSP_PWM_Start (uint32_t pwmMask, bool masterHRTIM)
	Starts the PWM on required PWM pins. To enable outputs for required channels call BSP_PWMOut_Enable().
void	BSP_PWM_Stop (uint32_t pwmMask, bool masterHRTIM)
	Stops the PWM on required PWM pins.
void	BSP_PWM_GetDafaultModuleConfig (pwm_module_config_t *moduleConfig)
	Populates the provided pwm_module_config_t parameter with the default configuration.
void	BSP_PWM_GetDefaultConfig (pwm_config_t *pwmConfig, pwm_module_config_t *moduleConfig)
	Populates the provided pwm_config_t parameter with the default configuration.
void	BSP_PWMOut_Enable (uint32_t pwmMask, bool en)
	Enable / disable the output for required PWM channels.
static bool	IsDeadtimeEnabled (deadtime_t *dt)
	Checks if the dead time is enabled for the PWM.

Detailed Description

Function Documentation

BSP_PWM_Config_Interrupt()

void BSP_PWM_Config_Interrupt ( uint32_t  pwmNo, bool  enable, PWMResetCallback  callback, int  priority  )

extern

Parameters

pwmNo	Channel no of the PWM Channel (Range 1-16)
enable	If enable interrupt set this parameter to true
callback	Specifies the function to be called when the PWM is reset
priority	Interrupt priority. Range (0-15). Here 0 is the highest priority

BSP_PWM_ConfigChannel()

DutyCycleUpdateFnc BSP_PWM_ConfigChannel ( uint16_t  pwmNo, pwm_config_t *  config  )

extern

Parameters

pwmNo	PWM channel to be configured (Valid Values 1-16)
*config	Pointer to a pwm_config_t structure that contains the configuration parameters for the PWM pair

Returns

DutyCycleUpdateFnc Returns the function pointer of the type DutyCycleUpdateFnc which needs to be called whenever the duty cycles of the pair need to be updated

BSP_PWM_ConfigInvertedPair()

DutyCycleUpdateFnc BSP_PWM_ConfigInvertedPair ( uint16_t  pwmNo, pwm_config_t *  config  )

extern

Parameters

pwmNo	Channel no of reference channel is the PWM pair (Valid Values 1-16). Pairs are classified as : CH1 = Reference channel available at pin pwmNo CH2 = Inverted Channel from reference available at pin pwmNo + 1 if pwmNo is odd else pwmNo - 1
config	Pointer to a pwm_config_t structure that contains the configuration parameters for the PWM pair

Returns

DutyCycleUpdateFnc Returns the function pointer of the type DutyCycleUpdateFnc which needs to be called whenever the duty cycles of the pair need to be updated

BSP_PWM_GetDafaultModuleConfig()

void BSP_PWM_GetDafaultModuleConfig ( pwm_module_config_t *  moduleConfig )

extern

Default Configuration:

1. alignment = CENTER_ALIGNED
2. deadtime.on = false
3. deadtime.nanoSec = 1000
4. f = 25000Hz

Parameters

moduleConfig

module configuration to be updated

BSP_PWM_GetDefaultConfig()

void BSP_PWM_GetDefaultConfig ( pwm_config_t *  pwmConfig, pwm_module_config_t *  moduleConfig  )

extern

Default Configuration:

1. dutyMode = OUTPUT_DUTY_AT_PWMH
2. lim.min = 0
3. lim.max = 1
4. lim.minMaxDutyCycleBalancing = false
5. slaveOpts = NULL

   Parameters

   pwmConfig	PWM configuration structure to be updated
   moduleConfig	module configuration used by this module. Make sure to call BSP_PWM_GetDafaultModuleConfig() before calling this function

BSP_PWM_Start()

void BSP_PWM_Start ( uint32_t  pwmMask, bool  masterHRTIM  )

extern

// Start PWM for channel 1
BSP_PWM_Start(0x1, true);
// Start PWM for channel 1 and channel 2
BSP_PWM_Start(0x3, false);
// Start PWM for channel n and channel m, where n & m are between 1 & 16
BSP_PWM_Start((1U << (n - 1)) | (1U << (m - 1)), bool);

Parameters

pwmMask	Set the PWM channels needed to be run. Valid Range = (0x0001 - 0xffff)
masterHRTIM	true if masterHRTIM to be enabled synchronously else false

BSP_PWM_Stop()

void BSP_PWM_Stop ( uint32_t  pwmMask, bool  masterHRTIM  )

extern

// Stop PWM for channel 1
BSP_PWM_Stop(0x1, false);
// Stop PWM for channel 1 and channel 2
BSP_PWM_Stop(0x3, false);
// Stop PWM for channel n and channel m, where n & m are between 1 & 16
BSP_PWM_Stop((1U << (n - 1)) | (1U << (m - 1)), bool);

Parameters

pwmMask	Set the PWM channels needed to be stopped. Valid Range = (0x0001 - 0xffff)
masterHRTIM	true if masterHRTIM to be disabled synchronously else false

BSP_PWM_UpdateChannelDuty()

float BSP_PWM_UpdateChannelDuty ( uint32_t  pwmNo, float  duty, pwm_config_t *  config  )

extern

Parameters

pwmNo	PWM channel to be configured (Valid Values 1-16)
duty	duty cycle to be applied to the channel (Range 0-1 or given in the config parameter)
*config	Pointer to a pwm_config_t structure that contains the configuration parameters for the PWM channel

Returns

float Duty cycle applied in this cycle. May differ from the duty variable if outside permitted limits

BSP_PWM_UpdatePairDuty()

float BSP_PWM_UpdatePairDuty ( uint32_t  pwmNo, float  duty, pwm_config_t *  config  )

extern

Parameters

pwmNo	Channel no of reference channel is the PWM pair (Valid Values 1-16). Pairs are classified as : CH1 = Reference channel available at pin pwmNo CH2 = Inverted Channel from reference available at pin pwmNo + 1 if pwmNo is odd else pwmNo - 1
duty	duty cycle to be applied to the pair (Range 0-1 or given in the config parameter)
*config	Pointer to a pwm_config_t structure that contains the configuration parameters for the PWM pair

Returns

float Duty cycle applied in this cycle. May differ from the duty variable if outside permitted limits

BSP_PWMOut_Enable()

void BSP_PWMOut_Enable ( uint32_t  pwmMask, bool  en  )

extern

// Enable PWM output for channel 1
BSP_PWMOut_Enable(0x1, true);
// Enable PWM output for channel 1 and channel 2
BSP_PWMOut_Enable(0x3, true);
// Disable PWM output for channel n and channel m, where n & m are between 1 & 16
BSP_PWMOut_Enable((1U << (n - 1)) | (1U << (m - 1)), false);

Parameters

pwmMask	Set the PWM channels needed to be run. Valid Range = (0x0001 - 0xffff)
en	true if needs to be enabled else false

IsDeadtimeEnabled()

static bool IsDeadtimeEnabled ( deadtime_t *  dt )

inlinestatic

Parameters

*dt	Pointer to the dead time structure

Returns

bool true if enabled for the specified PWM else false