EVADC

R2026b

Measure voltage of an analog input pin

Since R2024a

• 

EVADC block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Embedded Coder Support Package for Infineon AURIX TC3x Microcontrollers / AURIX TC3x

Description

Add-On Required: This feature requires the Embedded Coder Support Package for Infineon AURIX TC3x Microcontrollers add-on.

Measure the voltage of an analog input pin.

The Enhanced Versatile Analog to Digital Converter (EVADC) block outputs the voltage of the input signal as a 12-bit value in an N-by-1 array, where N is defined based on the number of channels selected.

Note

If you add the same pin in multiple channels of single EVADC block, then some channels fail to capture the converted result in external mode and Synopsys Virtualizer Studio.

Examples

Field-Oriented Control of BLDC with Encoder Using Infineon AURIX TC3xx Microcontrollers

Implement the field-oriented control (FOC) technique to control the speed of a three-phase brushless DC (BLDC) motor. The FOC algorithm requires rotor position feedback, which is obtained by using an encoder sensor. For more details about FOC, see Field-Oriented Control (Motor Control Blockset).

• Open Model

Ports

Input

trigger — Trigger the conversion

scalar

Triggers the EVADC input pin for conversion via software trigger.

Dependencies

To enable this port, set the Mode parameter to ADC trigger.

Data Types: double | int8 | int16 | int32 | uint8 | uint16 | uint32 | Boolean

msg — SoC simulation message

scalar

This port receives message from the interface blocks and the EVADC block converts this message and outputs it at the result port during simulation.

Dependencies

To view this input port, set the Mode parameter to ADC read and select the Enable simulation port parameter and set the port type as SoC Data (Message based).

sig — Simulink^® based simulation signal

scalar | vector

The simulation-only Simulink signal input port acts as a pass-through for the output of the EVADC block during simulation.

Dependencies

To view this input port, set the Mode parameter to ADC read and select the Enable simulation port parameter and set the port type as Signal.

Output

result — Voltage as 12-bit value

scalar | vector

The block outputs the input voltage as a 12-bit value in an N-by-1 array, where N is defined based on the number of channels specified in the Number of channels parameter.

Data Types: uint16

status — Status of read operation

scalar

The block outputs the status of read operation in an 1-by-N array, where N represents the number of channels specified in the Number of channels parameter. Each array element represents status of read operation of individual channel as one of these values:

• 0 — Conversion result is available

• 1 — Conversion result is not available

Dependencies

To enable this port, set the Mode parameter to ADC read and enable the Status parameter.

Data Types: uint8

event — Event message to start conversion

scalar

This port outputs an event message at each trigger to start the conversion during simulation.

Dependencies

To view this port, set the Mode parameter to ADC trigger, select the Enable simulation port parameter, and set the port type to SoC Data (Message based).

triggersig — Simulink based trigger signal for simulation

scalar | vector

This port outputs the data received at trigger input port as a signal during simulation.

Dependencies

To view this port, set the Mode parameter to ADC trigger and select the Enable simulation port parameter, and set the port type to Signal.

Parameters

Mode — Operation mode of the EVADC block

ADC read (default) | ADC trigger

Select one of these operation modes:

• ADC read — Select this option for the block to read the result at the selected channel. This option enables the output port result. Selection of this mode enables options in the Input # tab and Group select tab in the EVADC Peripheral Configuration.

• ADC trigger — Select this option to trigger the selected channel via a software trigger. This option enables the input port trigger. Selection of this mode enables options Group select tab in the EVADC Peripheral Configuration.

  Note

  As the block does not show the conversion results in this mode, you must use another EVADC block with the Mode parameter set to ADC read to display the conversion results.

Number of channels — Select number of channels

1 (default) | 2 | 3 | ...

Select the required number of channels ranging between 1 through 16.

Status — Option to enable status port

off (default) | on

When you select this parameter, the block configures the status output port to output the status of the conversion result.

Dependencies

To enable this port, set the Mode parameter to ADC read.

Sample time — Frequency at which block reads input analog pin(s)

-1 (default) | scalar | vector

Specify in seconds how often the block must read the analog pin(s).

When you set this parameter to -1, Simulink determines the best sample time for the block based on the block context within the model.

Dependencies

To enable the Sample time parameter, set the Mode parameter to ADC read.

Enable simulation port — Enable peripheral simulation ports in the block

off (default) | on

Select this parameter to enable peripheral simulation capability.

Port Type — Specify the type of peripheral simulation port

SoC Data (Message based) (default) | Signal

Select this parameter to configure either the SoC message or the Simulink signal based simulation ports to enable peripheral simulation capability.

Dependencies

To view this parameter, select the Enable simulation port parameter.

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"aurixtc3xxlib/Evadc"

Example: add_block("aurixtc3xxlib/Evadc","myModel/myBlock",MakeNameUnique="on")

Version History

Introduced in R2024a