Model Configuration Simulink Support Package for Raspberry Pi Hardware

Hardware Implementation Overview

1. In the Modeling tab of the toolstrip, select Model Settings.

2. In the Configuration Parameter dialog box, select Hardware Implementation.

3. Set the Hardware board parameter to Raspberry Pi. This selection populates the Hardware board settings parameters with the default values for the Raspberry Pi™ hardware. You can adjust these parameters to suit your particular use case.

4. Click Apply.

Hardware Implementation pane parameters do not control hardware or compiler behavior. The parameters describe hardware and compiler properties for the MATLAB^® software.

• Specifying hardware characteristics enables simulation of the model to detect error conditions that can arise when executing code, such as hardware overflow.

• MATLAB uses the information to generate code for the platform that runs as efficiently as possible. MATLAB software also uses the information to give bit-true agreement for the results of integer and fixed-point operations in simulation and generated code.

See Also

• Hardware Implementation Options (Simulink Coder)

Hardware board

Select the hardware board upon which to run your model.

Changing this parameter updates the dialog box display so that it displays parameters that are relevant to your hardware board.

To install support for a hardware board, start the Support Package Installer by selecting Get Hardware Support Packages. Alternatively, in the MATLAB Command Window, enter supportPackageInstaller.

After installing support for a hardware board, reopen the Configuration Parameters dialog box and select the hardware board.

Settings

Default: None if the specified system target file is ert.tlc, realtime.tlc, or autosar.tlc. Otherwise, the default is Determine by Code Generation system target file.

None

No hardware board is specified. The system target file specified for the model is ert.tlc, realtime.tlc, or autosar.tlc.

Determine by Code Generation system target file

Specifies that the system target file setting determines the hardware board.

Get Hardware Support Packages

Invokes the Support Package Installer. After you install a hardware support package, the list includes relevant hardware board names.

Hardware board name

Specifies the hardware board to use to implement the system this model represents.

Tips

• When you select a hardware board, parameters for board settings appear in the dialog box display.

• After you select a hardware board, you can select a device vendor and type.

Base rate task priority

This parameter sets the static priority of the base rate task. However, the changes that you make in this parameter do not result in any functionality differences on the Raspberry Pi hardware.

Settings

Default: 40

Detect task overruns

Detect when a task overrun occurs in a Simulink^® model running on the target hardware. Indicate when an overrun has occurred.

A task overrun occurs if the target hardware is still performing one instance of a task when the next instance of that task is scheduled to begin.

You can fix overruns by decreasing the frequency with which tasks are scheduled to run, and by reducing the number or complexity of the tasks defined by your model.

If those solutions do not fix the task overrun condition, and you are using External mode, consider disabling External mode.

Settings

Default: None

Scheduler options

Parameter	Description	Default Value
Base rate trigger	Set source of scheduler interrupt	Operating system timer

Board Parameters

Parameter	Description	Default Value
Device Address	IP address or host name of the hardware board.	192.168.0.101
Username	Root user name for Linux® running on the hardware board.	pi
Password	Root password for Linux running on the hardware board.	raspberry

Build options

Parameter	Description	Default Value
Build action	Option to specify whether you want only build or build and run actions during code generation.	Build and run
Build directory	Build directory for Linux running on the hardware board.	/home/pi
Run on boot	Automatically starts a Simulink model deployed on the hardware every time you restart the hardware.	off

SPI

Parameter	Description	Default Value
SPI0 CE0 Bus Speed (kHz)	Bus speed in kilo hertz for channel 0.	500
SPI0 CE1 Bus Speed (kHz)	Bus speed in kilo hertz for channel 1.	500

CAN

Parameter	Description	Default Value
CAN Bus Speed (kBit/s)	Bus speed in kilo bits per second.	500
Oscillator Frequency (MHz)	Oscillator frequency in mega hertz.	16
Interrupt Pin	Interrupt pin value to enable reading the message.	12
Allow All Messages	Option to allow all messages.	Off
Buffer 0 ID Type	Buffer 0 id type.	Normal
Buffer 0 Acceptance Mask (RXMO)	Value for buffer 0 acceptance mask (RXMO).	0
Buffer 0 Acceptance Filter (RXF0)	Value for buffer 0 acceptance filter (RXF0).	255
Buffer 0 Acceptance Filter (RXF1)	Value for buffer 0 acceptance filter (RXF1).	255
Buffer 1 ID Type	Buffer 1 id type.	Normal
Buffer 1 Acceptance Mask (RXM1)	Value for buffer 1 acceptance mask (RXM1).	0
Buffer 1 Acceptance Filter (RXF2)	Value for buffer 1 acceptance filter (RXF2).	255
Buffer 1 Acceptance Filter (RXF3)	Specify a value for buffer 1 acceptance filter (RXF3).	255
Buffer 1 Acceptance Filter (RXF4)	Value for buffer 1 acceptance filter (RXF4).	255
Buffer 1 Acceptance Filter (RXF5)	Value for buffer 1 acceptance filter (RXF5).	255

MQTT

Parameter	Description	Default Value
Broker Address	The address of the MQTT broker.	mqtt.thingspeak.com
Username	User name for MQTT broker to authenticate the client.	<empty>
Password	Password for MQTT broker to authenticate the client.	<empty>
Client ID	A unique identifier for the client that is connected to the MQTT broker.	<empty>

External mode

Parameter	Description	Default Value
Communication interface	The transport layer External mode uses to exchange data between the host computer and the target hardware	XCP on TCP/IP
Run external mode in a background	The option to force the External mode engine to run the generated code in a background task.	Not selected
Logging buffer size (in bytes)	The buffer size for logging data in Universal Measurement and Calibration Protocol (XCP)-based External mode.	1000000
Port	The port the External mode uses for communications between the hardware board and host computer.	17725
Verbose	Option to view the External Mode execution progress and updates in the Diagnostic Viewer or in the MATLAB Command Window	Not selected

Connected I/O

Parameter	Description	Default Value
Enable Connected I/O	Option to enable Connected I/O during Normal mode simulation	enabled
Communication Interface	Transport layer used to exchange data between host computer and hardware	TCP/IP