PWM Peripheral Configuration

Map PWM peripherals in the Infineon AURIX model to peripheral registers in the MCU

Since R2024a

Description

View and edit the module and channel settings of PWM peripherals in the Infineon^® AURIX™ model.

Using the Peripheral Configuration tool, you can:

• View and edit the module and channel of PWM peripherals.

• Configure the global parameters. To set the group peripheral, select peripheral in Browser > Peripherals > PWM .

  The PWM Global parameters are available only if more than two PWM blocks are used in the model. For more, see Map Tasks and Peripherals Using Hardware Mapping .

• Check for any conflicts between peripherals.

×

Open the PWM Peripheral Configuration

• In the Simulink toolstrip, go to Hardware tab and click Hardware Mapping.

  

Parameters

Global parameters

Enable sync group functionality — Select PWM sync group functionality

off (default) | on

Select to enable the PWM sync functionality between two PWM blocks.

Note

• Enable sync group functionality parameter is displayed only if more than one PWM block is available in the model.

• If you use sync functionality for two blocks PWM1 and PWM2 with same parameter configuration in the hardware mapping window except for the Pulse Alignment parameter set to Edge aligned for PWM1 block and the Pulse Alignment parameter set to centre aligned for PWM2 block, then the waveform generated by PWM1 block (IO_P02_0_pin=Z) leads the waveform generated by PWM2 block (IO_P02_8_pin=Z).

  

When you select this option, the dialog box displays the Drive Group and Trigger Group options. Two or more PWM blocks in the model enable these global parameters, since these parameters are implied for sync functionality.

Drive Group — PWM drive group

Lists available PWM blocks (default)

The drive group lists all the PWM blocks used in the model. Select the PWM block from the list.

Dependencies

To enable the Drive Group parameter, select the Enable sync group functionality parameter.

Trigger Group — PWM trigger group

Lists available PWM block (default)

The trigger group lists all the PWM blocks used in the model. Select the PWM block from the list.

The PWM generated from the trigger block syncs with the PWM generated from the drive block.

Dependencies

To enable the Trigger Group parameter, select the Enable sync group functionality parameter.

Module

Timer submodule — Select timer submodule for PWM

TOM (default) | ATOM

Select the Timer Output Module (TOM) or ARU-connected Timer Output Module (ATOM) timer submodule. .

Timer Unit — Select timer unit for PWM

TOM0 (default) | TOM1 | TOM3 | ATOM0 | ATOM1 | ... | ATOM6

Select the timer unit for PWM.

For example, TOM0, 0 represents the cluster number.

Dependencies

The Timer Unit options depends on the selection of Timer submodule. If TOM is set as Timer submodule, then the Timer unit list TOM# options. If ATOM is set as Timer submodule, then the Timer unit list ATOM# options.

Module > Clock

Initial frequency (Hz) — Initial frequency (Hz) for PWM

20000 (default) | Float

Specify the initial frequency (Hz) for PWM.

Clock configuration — Select PWM clock configuration

option vary based on the value of Timer submodule parameter (default)

Select the PWM clock configuration. The PWM clock configuration parameters lists all the fixed clock and CMU clock options.

For example, if you select Timer submodule as TOM, the clock configuration divider is represented as IfxGtm_Cmu_Fxclk_#. When you select Timer submodule as ATOM, the clock configuration divider is represented as IfxGtm_Cmu_clk_#.

For TOM modules there are five different divide values based on the selection and for ATOM there are eight different selections of clock configuration.

• TOM - FXCLK Divider 0 (2⁰), FXCLK Divider 1 (2⁴), FXCLK Divider 2 (2⁸), FXCLK Divider 3 (2¹²), and FXCLK Divider 4 (2¹⁶)

• ATOM - CMUCLK Divider 0 (2⁰), CMUCLK Divider 1 (2¹), CMUCLK Divider 2 (2²), CMUCLK Divider 3 (2³), CMUCLK Divider 4 (2⁴), CMUCLK Divider 5 (2⁵), CMUCLK Divider 6 (2⁶), and CMUCLK Divider 7 (2⁷).

Dependencies

Clock configuration depends on the selection made in Timer submodule.

• If TOM submodule is selected, then fixed clocks are displayed.

• If ATOM is selected, then configurable CMU clocks are displayed.

DTM Clock configuration — Dead time module clock configuration

SYS_CLK (default) | options vary based on the value of Timer submodule

Specify the dead time module clock configuration.

Dependencies

DTM Clock configuration depends on the selection made in Timer submodule.

• If TOM submodule is selected, then fixed clocks are displayed.

• If ATOM is selected, then configurable CMU clocks are displayed.

Pulse alignment — Select pulse alignment for PWM

Edged aligned (default) | Center aligned

Select the pulse alignment for PWM.

• Select edge aligned if you want to generate edge aligned PWM pulse.

• Select center aligned if you want to generate symmetric center aligned PWM pulse.

Module > Update Characteristics

Duty Cycle — Option to update duty cycle

Update duty at end of period (default) | Update duty immediately

Specify when to update the duty cycle.

Frequency — Option to update frequency

Update frequency at end of period (default) | Update frequency immediately

Specify when to update the frequency.

Dependencies

To enable this parameter, set the Enable frequency input parameter in the PWM block in the Simulink^® model.

Phase — Option to update phase

Update phase at end of period (default) | Update phase immediately

Specify when to update the phase.

Dependencies

To enable this parameter, set the Enable phase input parameter in the PWM block in the Simulink model.

Interrupt Type — Interrupt event for PWM

none (default) | Period Interrupt | Duty Interrupt

Specify the type of interrupt event for the PWM as one of these options.

• None—Select this option when you do not want to specify an interrupt event.

• Period Interrupt—Select this option to specify an interrupt event at the end of every period.

  

  Selecting this option also enables the read-only parameter Period Event source name, which provides information on the source of the period interrupt. The source depends onModule, Timer submodule, and Timer unit parameters. You can map the name in the tasks (CPU1).

  

• Duty Interrupt—Select this option to enable an interrupt at the start of every duty cycle.

Duty event for channel # and channel # — Duty event for channel pairs

none (default) | options vary based on the selected channel pair

Specify the duty event based on the channel pair.

Channel pairs such as channel 0 and channel 1, channel 2 and channel 3, …. , channel 14 and channel 15, share same duty event sources. For example, if you select the channel 0 and channel 1 pair, the available duty options are:

• IfxGtm_Pwm_SubModule_Ch_0

• IfxGtm_Pwm_SubModule_Ch_1

If you select the IfxGtm_Pwm_SubModule_Ch_0 event, the block enables the read-only Duty Event source name parameter in Output 0 tab.

Note

To select the duty event for the channel pairs, set the Number of outputs parameter in the PWM block appropriately. For example, set the Number of outputs parameter in the PWM block as 13 to use the Duty event for channel 12 and channel 13.

Dependencies

To enable this parameter, set Interrupt Type to Duty Interrupt.

Output #

Channel # — Select PWM channel

Default varies based on the Time submodule selected (default) | IfxGtm_Pwm_SubModule_Ch_1 | IfxGtm_Pwm_SubModule_Ch_2 | …

The number of outputs selected in the PWM block will appear in their respective output tabs of the PWM peripheral. Each of these outputs must be configured respectively.

Dependencies

The channel # list depends on

• Timer Submodule (TOM or ATOM)

• Timer unit (TOM# or ATOM#)

Output pin # — Select PWM output pin channel

P02_0 (default) | P10_7 | P00_9 | ...

Select the PWM output pin channel.

Dependencies

The Output pin # list depends on

• Timer Submodule (TOM or ATOM)

• Timer unit (TOM# or ATOM#)

• Channel

Output mode — PWM output mode

Push pull (default) | Open drain

Select the output mode for the PWM pin(s).

Speed — Pin speed

Speed-1 (default) | Speed-2 | Speed-3

Select the pin speed.

Voltage level — Pin voltage level

Automotive (default) | TTL-5V | TTL-3.3V

Select the pin voltage level.

Signal polarity — Signal polarity of PWM

Active High (default) | Active Low

Select the signal polarity of PWM channel.

Initial Duty cycle (%) — PWM initial duty cycle in percentage

50 (default)

Specify the PWM initial duty cycle in percentage. Range varies from 0-100%.

Enable complementary output — Enable PWM complementary output

off (default) | on

Enables the complementary output for PWM.

Complementary output pin — Select PWM complementary output pin

default value varies based on the submodule, timer unit and channel selected (default) | P10_4 | P00_8 | ...

Select the PWM complementary output pin.

Dependencies

To enable the Complementary output pin parameter, select the Enable complementary output parameter.

Signal polarity of complementary pin — Select signal polarity of complementary pin

Active Low (default) | Active High

Select the signal polarity of complementary pin.

Dependencies

To enable the Signal polarity of complementary pin parameter, select the Enable complementary output parameter.

Enable Dead time insertion — Flag to specify dead time

off (default) | on

Enables the dead time insertion.

Dependencies

To enable the Enable Dead time insertion parameter, select the Enable complementary output parameter.

Dead-time for rising edge(s) — PWM dead time for rising edge(s)

0 (default) | positive scalar integer

Specify the PWM dead time for rising edge(s) in seconds.

For more information on dead time module, see Dead-Time Module Properties.

Dependencies

To enable the Dead-time for rising edge(s) parameter, select the Enable Dead time insertion parameter.

Dead-time for falling edge(s) — PWM dead time for falling edge(s)

0 (default) | positive scalar integer

Specify the PWM dead time for falling edge(s) in seconds.

For more information on dead time module, see Dead-Time Module Properties.

Dependencies

To enable the Dead-time for falling edge(s) parameter, select the Enable Dead time insertion parameter.

ADC trigger — Enable ADC trigger for PWM channel

off (default) | on

Enable this parameter to trigger ADC conversion at the end of every period.

Note

You must have an EVADC block in the model to trigger ADC conversion.

Dependencies

The ADC trigger depends on

• Timer Submodule (TOM or ATOM)

• Timer unit (TOM# or ATOM#)

• Channel

EVADC G# — Option to select ADC trigger channel group G#

off (default) | on

select to trigger ADC conversion on channel group G#. For more information on ADC trigger signal, refer to EVADC Trigger Signals.

GTM ADC trigger signal # — ADC trigger signal for the channel group

off (default) | on

ADC trigger signal for the channel group. For more information on ADC trigger signal, refer to EVADC Trigger Signals.

Dependencies

To enable the GTM ADC trigger signal # parameter, select the EVADC G# parameter.

More About

Dead-Time Module Properties

Follow these steps to use the dead-time functionality:

• Select the Enable dead time properties input parameter in the block to configure the dtm_rise and dtm_fall input ports.

• Select the Enable complementary output parameter Hardware Mapping window corresponding to that channel you have selected to configure the Enable dead time insertion, Dead-time for rising edge(s), and Dead-time for falling edge(s) parameters.

• To enable the High-Resolution for dead time parameter, in the Module tab of the Hardware Mapping window, set the Module parameter to EGTM and the Timer submodule parameter to ATOM.

EVADC Trigger Signals

The signal you use to trigger the EVADC module groups depends on the Timer unit and channel # parameters. For example, with the combination (A0, C4) representing (ATOM 0, IfxGtm_Pwm_SubModule_Ch_4) you can trigger the EVADC groups G0, G1, G2, G3, G8,G9, G10, G11 represented as G_0,1,2,3,8,9. Similarly (T0, C6) represents (TOM 0, IfxGtm_Pwm_SubModule_Ch_6), which can trigger the groups G0, G1, G2, G3, G8,G9, G10, G11 represented as G_0,1,2,3,8,9.

• Combination of timer unit, PWM channel and EVADC groups for GTM ADC trigger signal 0: (A0, C4, G_0,1,2,3,8,9,10,11), (A0, C5, G_0,1,2,3,8,9,10,11), (A0, C6, G_0,1,2,3,8,9,10,11), (A0, C7, G_0,1,2,3,8,9,10,11), (A1, C4, G_0,1,2), (A1, C5, G_0,1,2), (A1, C6, G_0,1,2), (A1, C7, G_0,1,2), (A2, C4, G_0,1,2,3), (A2, C5, G_3), (A2, C7, G_0,1,2), (A3, C4, G_3,8,9,10,11), (A3, C5, G_3,8,9,10,11), (A4, C4, G_8,9,10,11), (A4, C5, G_8,9,10,11), (T0, C6, G_0,1,2,3,8,9,10,11), (T0, C7, G_0,1,2,3,8,9,10,11), (T0, C13, G_0,1,2,3,8,9,10,11), (T0, C14, G_0,1,2,3,8,9,10,11), (T0, C15, G_8,9,10,11), (T1, C6,G_3), (T2, C13, G_0,1,2,3).

• Combination of timer unit, PWM channel and EVADC groups for GTM ADC trigger signal 1: (A0, C4, G_0,1,2), (A0, C5, G_0,1,2), (A0, C6, G_0,1,2), (A0, C7, G_0,1,2), (A1, C4, G_0,1,2,3,8,9,10,11), (A1, C5, G_0,1,2,3,8,9,10,11), (A1, C6, G_0,1,2,3,8,9,10,11), (A1, C7, G_0,1,2,3,8,9,10,11), (A2, C6, G_3), (A2, C7, G_3), (A3, C6, G_3,8,9,10,11), (A3, C7, G_3,8,9,10,11), (A4, C6, G_8,9,10,11), (A4, C7, G_8,9,10,11), (A5, C3, G_8,9,10,11), (T0, C14, G_0,1,2,8,9,10,11), (T0, C15, G_0,1,2,8,9,10,11), (T1, C6, G_0,1,2,3,8,9,10,11), (T1, C7, G_0,1,2,3,8,9,10,11), (T1, C13, G_0,1,2,3,8,9,10,11), (T1, C14, G_0,1,2,3,8,9,10,11), (T1, C15, G_3).

• Combination of timer unit ,PWM channel and EVADC groups for GTM ADC trigger signal 2: (T2, C3, G_8,9,10,11), (T0, C4, G_0,1,2,3,8,9,10,11), (T0, C5, G_0,1,2,3,8,9,10,11), (T0, C6, G_0,1,2,3), (T0, C7, G_0,1,2,3), (T0, C11, G_0,1,2,3), (T0, C15, G_0,1,2,3), (T1, C3, G_0,1,2,3,8,9,10,11), (T1, C4, G_0,1,2,3,8,9,10,11), (T1, C5, G_0,1,2,3,8,9,10,11), (T1, C6, G_0,1,2,3), (T1, C7, G_0,1,2,3), (T1, C11, G_0,1,2,3), (T1, C15, G_0,1,2,3), (T2, C3, G_8,9,10,11), (T2, C4, G_8,9,10,11), (T2, C5, G_8,9,10,11), (T2, C7, G_8,9,10,11).

• Combination of timer unit ,PWM channel and EVADC groups for GTM ADC trigger signal 3: (A0, C3, G_0,1,2,3,8,9,10,11), (A0, C5, G_0,1,2,3,8,9,10,11), (A1, C3, G_0,1,2,3,8,9,10,11), (A1, C5, G_0,1,2,3,8,9,10,11), (A2, C3, G_0,1,2,3,8,9,10,11), (A2, C4, G_8,9,10,11), (A2, C5, G_0,1,2,3,8,9,10,11), (A2, C7, G_3,8,9,10,11), (A3, C3, G_0,1,2,3,8,9,10,11), (A3, C4, G_0,1,2), (A3, C5, G_0,1,2,3,8,9,10,11), (A3, C7, G_0,1,2), (A4, C3, G_0,1,2,3,8,9,10,11), (A4, C4, G_0,1,2,3), (A4, C5, G_0,1,2,3,8,9,10,11), (A4, C7, G_0,1,2,3), (A5, C4, G_8,9,10,11), (A5, C5, G_8,9,10,11), (A5, C7, G_8,9,10,11), (T2, C14, G_0,1,2,3).

• Combination of timer unit ,PWM channel and EVADC groups for GTM ADC trigger signal 4: (A5, C3, G_0,1,2,3), (A5, C3, G_0,1,2,3), (A5, C5, G_0,1,2,3), (A5, C7, G_0,1,2,3), (T2, C3, G_0,1,2,3), (T2, C4, G_0,1,2,3), (T2, C5, G_0,1,2,3), (T2, C7, G_0,1,2,3), (T2, C11, G_0,1,2,3), (T2, C12, G_0,1,2,3), (T2, C14, G_8,9,10,11).

Note

• The ADC Trigger parameter remains disabled in the block dialog box if you do not select one of these timer unit and channel combinations.

• Disable the ADC Trigger and GTM ADC trigger signal # parameters before changing the Channel # parameter in the Output tab.

Version History

Introduced in R2024a