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Detailed Description
The standard interface pwm high/low (PwmHl) abstract the hardware used for pwm feature. It provide, after proper initialization an hardware independant way to interact with the PWM functionallity like setting duty cycles, dead time,timer functionalities, ...
The figure below shows the standard Multi-channels, dual-complementary PWM interface.
This PWM interface provides multiple dual-complementary PWM channels. Each dual-complementary PWM channel is made of two PWM channels, a top channel CCx and a bottom channel COUTx. The interface implements the Standard interface: Timer.
This interface defines the following features:
- Configurable duty cycle from 0% to 100%
- Adjustable dead-time between top and bottom channels
- Center aligned, left aligned, right aligned PWM
- Optional minimal pulse cancellation
- Optional emergency stop
- Configurable signal active state for top and bottom PWM
- Configurable output ports
- Inherit the features from library_srvsw_stdif_timer
Example of signal generation in center aligned mode:
Function Documentation
| IFX_INLINE float32 IfxStdIf_PwmHl_getDeadtime | ( | IfxStdIf_PwmHl * | stdIf) |
Return the dead time in s.
It returns the last dead time values set by IfxStdIf_PwmHl_SetDeadtime() or during initialisation
- Parameters
-
driver Pointer to the interface driver object
- Returns
- Returns the deadtime in second
Definition at line 183 of file IfxStdIf_PwmHl.h.
| IFX_INLINE float32 IfxStdIf_PwmHl_getMinPulse | ( | IfxStdIf_PwmHl * | stdIf) |
Return the minimum pulse time in s.
It returns the last minimum pulse time values set by IfxStdIf_PwmHl_SetMinPulse() or during initialisation
- Parameters
-
driver Pointer to the interface driver object
- Returns
- Returns the minimum pulse time in second
Definition at line 197 of file IfxStdIf_PwmHl.h.
| IFX_INLINE Ifx_Pwm_Mode IfxStdIf_PwmHl_getMode | ( | IfxStdIf_PwmHl * | stdIf) |
Return the PWM mode.
It returns the last pwm mode set by IfxStdIf_PwmHl_SetMode() or during initialisation
- Parameters
-
driver Pointer to the interface driver object
- Returns
- Returns the pwm mode
Definition at line 204 of file IfxStdIf_PwmHl.h.
| IFX_INLINE IfxStdIf_Timer* IfxStdIf_PwmHl_getTimer | ( | IfxStdIf_PwmHl * | stdIf) |
Return the timer standard interface used by the IfxStdIf_PwmHl standard interface.
- Parameters
-
stdIf pointer to the IfxStdIf_PwmHl object
- Returns
- Returns the pointer to the IfxStdIf_Timer object
Definition at line 232 of file IfxStdIf_PwmHl.h.
| IFX_INLINE boolean IfxStdIf_PwmHl_setDeadtime | ( | IfxStdIf_PwmHl * | stdIf, |
| float32 | deadtime | ||
| ) |
Set the dead time in s.
- Parameters
-
driver Pointer to the interface driver object deadtime deadtime in second
- Return values
-
TRUE In case of success FALSE In case of failure
Definition at line 176 of file IfxStdIf_PwmHl.h.
| IFX_INLINE boolean IfxStdIf_PwmHl_setMinPulse | ( | IfxStdIf_PwmHl * | stdIf, |
| float32 | minPulse | ||
| ) |
Set the minimum pulse time in s.
- Parameters
-
driver Pointer to the interface driver object minPulse minimal pulse in second
- Return values
-
TRUE In case of success FALSE In case of failure
Definition at line 190 of file IfxStdIf_PwmHl.h.
| IFX_INLINE boolean IfxStdIf_PwmHl_setMode | ( | IfxStdIf_PwmHl * | stdIf, |
| Ifx_Pwm_Mode | mode | ||
| ) |
Set the pwm mode.
- Parameters
-
driver Pointer to the interface driver object mode PWM mode
- Return values
-
TRUE In case of success FALSE In case of failure (feature not supported)
Definition at line 211 of file IfxStdIf_PwmHl.h.
| IFX_INLINE void IfxStdIf_PwmHl_setOnTime | ( | IfxStdIf_PwmHl * | stdIf, |
| Ifx_TimerValue * | tOn | ||
| ) |
Set the pwm ON time.
- Parameters
-
driver Pointer to the interface driver object tOn Pointer to an array of ON times in ticks. The array size must be equal to the number of PWM channels
- Returns
- none
Definition at line 218 of file IfxStdIf_PwmHl.h.
| IFX_INLINE void IfxStdIf_PwmHl_setupChannels | ( | IfxStdIf_PwmHl * | driver, |
| boolean * | activeCh, | ||
| boolean * | stuckSt | ||
| ) |
Set channels which are generating PWM or in "stuck-at" state.
- Parameters
-
driver Pointer to the interface driver object activeCh Pointer to boolean array containing values for PWM channels. If FALSE, the channel will be in stuck-at state, else the channel will generate PWM. stuckSt Pointer to boolean array containing values for active channels. If FALSE, the stuck-at state is passive level, else the stuck-at state is active level.
- Note
- The values for the parameters are arranged as follows: index = 0 –> phase 0 top index = 1 –> phase 0 bottom index = 2 –> phase 1 top index = 3 –> phase 1 bottom index = 4 –> phase 2 top index = 5 –> phase 2 bottom
Definition at line 225 of file IfxStdIf_PwmHl.h.
