TMADC

Measure voltage of an analog input pin

Since R2022b

• 

Libraries:
Embedded Coder Support Package for Infineon AURIX TC4x Microcontrollers / AURIX TC4x

Description

Measure the voltage of an analog input pin.

The Time Multiplexed Analog to Digital Converter (TMADC) block outputs the voltage as a 12-bit value and the output port is an array N x 1 where N is defined based on the number of channels selected.

Examples

Field-Oriented Control of BLDC with Encoder Using Infineon AURIX 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 (FOC) (Motor Control Blockset).

• Open Model

Analyze Sensorless Observers for Field-Oriented Control Using Multiple Cores of Infineon AURIX

Use Embedded Coder® Support Package for Infineon® AURIX™ Microcontrollers for sensorless field-oriented control using multiple cores of an Infineon AURIX microcontroller board. This example uses a top-level model and two referenced models. You use the TriCore0 referenced model to implement a sensor-based field-oriented control (FOC) technique to control the speed of a three-phase brushless DC (BLDC) motor. You use the TriCore1 referenced model to implement and analyze different sensorless algorithms, such as the algorithms implemented in the Flux Observer (Motor Control Blockset), Sliding Mode Observer (Motor Control Blockset), and Extended EMF Observer (Motor Control Blockset) blocks.

• Open Model

Accelerate AI Based Software Development on Infineon AURIX TC4x Microcontroller

Implement AI based motor control functions using the Model-Based Design approach by deploying a multi-layer perceptron (MLP) neural network on the Infineon® AURIX™ TC4x microcontroller.

• Open Model

Ports

Input

trigger — Port to trigger the conversion

scalar

Triggers the TMADC input pin for conversion via software trigger.

From trigger port when mode is set trigger only enables you to provide the sample time.

• 1— TMADC start of conversion is triggered

• 0—TMADC start of conversion is not triggered

Dependencies

To view this port, set the Mode parameter to Trigger only.

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

msg — SoC Blockset simulation message

scalar

This port receives SoC Blockset™ message from the interface blocks and the TMADC block converts this message and outputs it at the result port during simulation.

Dependencies

To view this input port, set the Mode to Trigger and read or Read results only 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 TMADC block during simulation.

Dependencies

To view this port, set Mode to Trigger and read or Read results only and select the Enable simulation port parameter and set the port type to Signal.

Output

result — Voltage as 12-bit value

scalar | vector

The block outputs the voltage as a 12-bit value and the output port is an array N x 1 where N is defined based on the number of channels selected.

Dependencies

To enable this port, set the Mode parameter to Trigger and read or Read results only.

Data Types: uint16

status — Status of read operation

scalar

The block outputs the status of read operation at this port as one of these values:

• 0—No error in reading the result after successful trigger for the corresponding channel

• 1—Error in reading the result after successful trigger for the corresponding channel

Dependencies

To enable this port, set the Mode to Read results only and select the Enable status port parameter.

Data Types: double

timestamp — Status of 16-bit counter value

scalar | vector

The port outputs the status of the 16-bit counter value of timestamp counter.

Dependencies

To enable this port, select the Enable timestamp parameter.

Data Types: Boolean

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 to Trigger only and 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 to Trigger only and select the Enable simulation port parameter, and set the port type to Signal.

Parameters

Mode — Operation mode of the block

Trigger and read (default) | Trigger only | Read results only

Select one of these operation modes:

• Trigger and read— Select this option to trigger conversion at every sample time. The block waits until the conversion is complete and outputs the results. This option enables the output port result.

• Trigger only— Select this option to trigger the selected channel via a software trigger. This option enables the input port trigger. As the block does not show the conversion results in this mode, you have to use another TMADC block with the Mode parameter set to Read results only to display the conversion results.

• Read results only— Select this option for the block to read the result at the selected channel. The block outputs 0 at the status port if it is able to read the result and 1 otherwise. This option enables the output port result.

Number of channels — Select required channels

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

If you set the Mode to Trigger and read, then select the required number of channels ranging between 1 through 16. The number of channels are limited to 1 if you set the Mode to Trigger only or Read results only.

Enable timestamp — Enable timestamp

off (default) | on

Select to enable the timestamp.

When you select the Enable timestamp parameter, the block configures an additional output port, timestamp similar to result port to read the timestamp.

Note

• TMADC module has 16-bit timestamp counter which resets after every counter overflow.

• Enable timestamp parameter is not available when mode is set to Trigger only.

Enable status port — Configure status port

off (default) | on

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

Dependencies

To enable this port, set the Mode parameter to Read results only.

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

-1 (default) | scalar | vector

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

When you specify this parameter as -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 either Trigger and read or Read results only.

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 compatible or the Simulink signal based simulation ports to enable peripheral simulation capability.

Dependencies

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

Version History

Introduced in R2022b