DSADC Peripheral Configuration

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

Since R2023b

Description

View and edit the map of peripherals in the Infineon^® AURIX™ model to the hardware peripherals.

Using the Peripheral Configuration tool, you can:

• View and edit configuration parameters for DSADC peripheral block.

• Check for conflicts, if any between peripherals.

×

Open the DSADC Peripheral Configuration

• In the Hardware tab, click Hardware Mapping.

  

Parameters

Modulator Type — Type of modulator for delta-sigma conversion

On-chip (default) | External

Select the modulator type.

Maximum count for voltage reference — Maximum count for full-scale voltage

25000 (default) | integer

Maximum count for full-scale voltage.

Note

When configured for unsigned datatype, the result will be signed conversion + 32767. For example, for 3.3V, the converted value for signed operation is 3.3/5*25000=16500; for unsigned datatype, the value is 16500+32767=49267.

On-chip modulator

Positive input type — Type of positive input

Input-pin (default) | Ground

Type of positive input for DSADC conversion.

Note

DSADC module supports differential inputs where both positive and negative can be configured accordingly. In case of single ended application, you can configure the unused pin with ground.

Select positive pin — Selection of positive pin

AN0 (default) | pin numbers

Select pin number of the positive pin.

Dependencies

This parameter appears only if you select Input-pin for the Positive input type parameter.

Negative input type — Type of negative input

Ground (default) | Input-pin

Type of negative input for DSADC conversion.

Select negative pin — Selection of negative pin

AN1 (default) | AN15

Select pin number of the negative pin.

Dependencies

This parameter appears only if the Negative input type parameter is set to Input-pin.

Input mode — Input mode for DSADC pin

Tri-state (default) | Pull-up | Push-down

Select the input mode for the pin(s).

Speed — Speed for DSADC pin

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

Select the pin speed for DSADC.

Voltage level — Voltage level for DSADC pin

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

Select the pin voltage level.

On-chip modulator frequency — Select the on-chip modulator frequency

40MHz (default) | 20MHz | 10MHz

Select the on-chip modulator frequency.

Dithering — Add dithering, if required

Disable (default) | Level-0 | Level-1 | Level-2 | Level-3

Add dithering (white noise), if required.

Enable auto calibration — Enable auto calibration, if required

off (default) | on

Enable auto calibration of the DSADC conversion, if required.

Calibration Type — Calibration type

High precision (default) | High speed

Define the type of calibration for the DSADC signal.

Dependencies

This parameter appears only if you select the Enable auto calibration parameter.

External Modulator

Clock source — Clock source for external modulator

Internal (default) | External

Clock source for external modulator.

Clock frequency — Clock frequency for external modulator

40MHz (default) | 20MHz | 10MHz

Clock frequency for external modulator.

Clock pin — Pin number for clock signal

P33_5 (default) | available pin numbers

Pin number for clock signal.

Clock input mode — Input mode for clock signal

Tri-state (default) | Pull-up | Pull-down

Input mode for clock signal.

Data pin — Pin number for data signal

P33_6 (default) | available pin numbers

Pin number for data signal.

Data capture on — Trigger edge for data capture

Rising-edge (default) | Falling-edge | Both-edges

Trigger edge for data capture.

Data input mode — Input mode for clock signal

Pull-down (default) | Pull-up | Tri-state

Input mode for clock signal.

Speed — Speed for data pin

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

Select the pin speed for data transfer.

Voltage level — Voltage level for data pin

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

Select the data pin voltage level.

Manchester coding — Encode data with Manchester coding

off (default) | on

Encode data with Manchester coding.

Modulator gain — Gain of external modulator

1 (default) | integer

Add the external modulator gain including the external circuitry.

Timestamp

Timestamp frequency — Frequency of timestamp measurement

40MHz (default) | 20MHz | 10Mhz | 5Mhz

Frequency of timestamp measurement.

Dependencies

This parameter appears only if you select the Enable timestamp parameter in the DSADC block in the Simulink^® model.

Gate source to trigger timestamp — Gate source to trigger timestamp

GTM-ATOM0 (default) | GTM-ATOM#

Gate source to trigger timestamp.

Note

Ensure that you configure the appropriate trigger using the PWM block.

Dependencies

This parameter appears only if you select the Enable timestamp parameter in the DSADC block in the Simulink model.

Hardware trigger — Hardware trigger for timestamp

Adc_TriggerSignal_0 (default) | Adc_TriggerSignal_1 | Adc_TriggerSignal_2 | Adc_TriggerSignal_3

Hardware trigger for timestamp.

Dependencies

This parameter appears only if you select the Enable timestamp parameter in the DSADC block in the Simulink model.

Trigger edge — Hardware trigger edge

Rising-edge (default) | Falling-edge | Both-edges

Hardware trigger edge for timestamp.

Dependencies

This parameter appears only if you select the Enable timestamp parameter in the DSADC block in the Simulink model.

Trigger delay in nano seconds — Trigger delay for timestamp

0 (default) | 0 to 6553500

Specify the trigger delay for timestamp.

Dependencies

This parameter appears only if you select the Enable timestamp parameter in the DSADC block in the Simulink model.

Filter > CIC Filter

Decimation factor — Decimation factor for DSADC conversion

128 (default) | 3 to 1023

Decimation factor for DSADC conversion. Higher the value of Decimation factor, higher will be the accuracy, at the cost of additional time.

Auxiliary filter decimation factor — Auxiliary filter decimation factor for DSADC conversion

16 (default) | 32 | 64 | 128

Auxiliary filter decimation factor for DSADC conversion.

Dependencies

This parameter appears only if you select the Auxiliary result parameter in the DSADC block in the Simulink model.

Filter > Offset compensation

Enable offset compensation — Offset compensation for DSADC conversion

off (default) | on

Enable offset compensation for DSADC conversion.

Note

This option is supported only if Modulator Type parameter is set with On-chip.

Cutoff frequency — Cutoff frequency for offset compensation

0 (default) | 0 to 7

Cutoff frequency for offset compensation.

Offset in volts — Offset in volts

0 (default)

Specify the offset voltage.

Filter > Integrator

Enable integrator — Enable integrator module for DSADC conversion

off (default) | on

Enable integrator module for DSADC conversion.

Note

This option is supported only if Modulator Type parameter is set with On-chip.

Number of values to discard — Number of values to discard during integration

0 (default) | 0 to 127

Number of values to discard during integration.

Number of values for accumulation — Number of values for accumulation during integration

64 (default) | 1 to 127

Number of values for accumulation during integration.

Restart control — Restart filter chain results when the integration window starts

Clear both main and auxiliary filter (default) | Clear Main filter only | No effect on bot filters

The filter chain results that are set will be restarted (or resets to 0) when the integration window starts.

External trigger for window start — Enable external trigger for the start of adjustable integration window

off (default) | on

Enable external trigger for the start of adjustable integration window. If the parameter is disabled, the integrator is triggered at block sample rate and ends after the number of samples specified in Number of values for accumulation (1-127) is reached.

Window stop control — Stop control of adjustable integration window

Inverse of trigger edge (default)

Stop control of adjustable integration window.

Note

The window will be stopped by the inverse edge of the starting window.

Filter > Integrator Trigger

Window gate source — Gate source of adjustable integration window

GTM-ATOM0 (default) | GTM-ATOM# | GTM-TOM#

Gate source of adjustable integration window.

Note

Ensure that you configure the appropriate trigger using the PWM block.

Hardware trigger — Hardware trigger for integrator

Adc_TriggerSignal_0 (default) | Adc_TriggerSignal_1 | Adc_TriggerSignal_2 | Adc_TriggerSignal_3

Hardware trigger for integrator.

Trigger edge — Hardware trigger edge for integrator

Rising-edge (default) | Falling-edge | Both-edges

Hardware trigger edge for integrator.

Trigger delay in nano seconds — Trigger delay for integrator

0 (default) | 0 to 6553500

Specify the trigger delay for integrator.

Boundary

Lower limit in volts (-5V to 5V) — Lower limit for the boundary band

0 (default) | -5 to 5

Lower limit for the boundary band for checking the result.

Upper limit in volts (-5V to 5V) — Upper limit for the boundary band

5 (default) | -5 to 5

Upper limit for the boundary band for checking the result.

Enable hysteresis on boundary flag — Enable hysteresis on boundary flag

off (default) | on

Enable hysteresis to avoid metastable states and switching due to internal ground bounce.

Boundary mode — Boundary mode for auxiliary filter

Disabled (default) | Exceeds upper limit | Lower than lower limit | Out of bound

Boundary mode for auxiliary filter.

Note

This option is available only if the Hysteresis is disabled.

Service request — Service request based on the boundary mode

None (default) | Inside boundary band | Outside boundary band | Out of bound

Service request based on the boundary mode.

Events > Main filter result

Enable Interrupt — Enable interrupt for main filter

off (default) | on

Enable interrupt for main filter.

Interrupt — Interrupt condition for main filter

Always (default) | Only while gate is high | Only while gate is low

Interrupt condition for main filter. To limit the conversion interrupts, select the gate-signal option.

Gate signal from — Gate signal to trigger main filter result

GTM-ATOM0 (default) | GTM-ATOM#

Gate signal to trigger main filter result.

Note

Ensure that you configure the appropriate trigger using the PWM block.

Hardware trigger — Hardware trigger for main filter result

Adc_TriggerSignal_0 (default) | Adc_TriggerSignal_1 | Adc_TriggerSignal_2 | Adc_TriggerSignal_3

Hardware trigger for main filter result.

Trigger delay in nano seconds — Trigger delay for main filter result

0 (default) | 0 to 6553500

Trigger delay for main filter result.

Events > Auxiliary result

Enable Interrupt — Enable interrupt for auxiliary filter

off (default) | on

Enable interrupt for auxiliary filter.

Dependencies

This parameter enables only if you select the Auxiliary result parameter in the DSADC block in the Simulink model.

Events > Timestamp

Enable Interrupt — Enable interrupt for timestamp

off (default) | on

Enable interrupt for timestamp. The timestamp is triggered based on the parameters you selected in the Timestamp tab of this Hardware Mapping window. Enabling interrupt for timestamp helps you to interpolate the conversion results based on application frequency.

Note

In general, the application frequency might be out-of-sync with the delta-sigma ADC conversion cycle, and hence the data needs to be interpolated using timestamp.

Dependencies

This parameter appears only if you select the Enable timestamp parameter in the DSADC block in the Simulink model.

Version History

Introduced in R2023b