UDP Write

Send UDP packets to remote host

Libraries:
SoC Blockset / Processor I/O
SoC Blockset / Host I/O

Description

The UDP Write block sends UDP (User Datagram Protocol) packets from the application on target to a remote host. The remote host is the computer or hardware to which you want to send UDP packets.

Ports

Input

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data — Input signal
numeric vector

Input data, specified as a numeric vector. The block sends this data as UDP packet to the remote host. To set the byte order in which you want to send this UDP data, set the Byte order parameter. The block converts this input data to the specified byte order type.

Output

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msg — UDP packet sent to remote host
numeric vector

This message port sends UDP packets, as messages, to a connected IO Data Sink block. For more information on messages, see Messages.

Note

This output is used only during simulation. and does nothing in code generation and external mode simulation.

Data Types: SoCData

Parameters

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Remote IP address (255.255.255.255 for broadcast) — IP address of remote host to which data is sent
`127.0.0.1` (default) | dotted-quad expression

Specify the remote IP address of the host to which you want to send UDP packets.

Remote port — IP port of remote host to which data is sent
`25000` (default) | integer from 1 to 65,535

Specify the port number of the host to which you want to send UDP packets.

Local port — IP port number of application on target from which data is sent
`-1` (default) | integer from 1 to 65,535

Specify the port number of the application on the target from which you want to send the UDP packets. The default value -1, sets the local port number to a random available port number and uses that port to send the UDP packets.

Byte order — Byte order
`LittleEndian` (default) | `BigEndian`

Byte order of the UDP packets, specified as one of these values:

LittleEndian — Sets the byte order of UDP packets to little endian.
BigEndian — Sets the byte order of UDP packets to big endian.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

To automatically generate C code for your design, and execute on an SoC device, use the SoC Builder tool. To generate and execute C code for your SoC models, Embedded Coder^® features are required. For more information on generating code for SoC designs, see Use SoC Builder to Generate SoC Design.

Embedded Coder generates event-driven code for this block. This diagram shows a generalized representation of the generated code implementation.

Note

Timing measurements from generated code might vary within the execution of a task instance compared to the timing of tasks in simulation. You can configure your model to use data caching in task signals to reach improved agreement between the simulation and generated code. For more information, see Value and Caching of Task Subsystem Signals.

Version History

Introduced in R2019a

UDP Write

Description

Ports

Input

data — Input signal numeric vector

Output

msg — UDP packet sent to remote host numeric vector

Parameters

Remote IP address (255.255.255.255 for broadcast) — IP address of remote host to which data is sent 127.0.0.1 (default) | dotted-quad expression

Remote port — IP port of remote host to which data is sent 25000 (default) | integer from 1 to 65,535

Local port — IP port number of application on target from which data is sent -1 (default) | integer from 1 to 65,535

Byte order — Byte order LittleEndian (default) | BigEndian

Extended Capabilities

C/C++ Code Generation Generate C and C++ code using Simulink® Coder™.

Version History

See Also

data — Input signal
numeric vector

msg — UDP packet sent to remote host
numeric vector

Remote IP address (255.255.255.255 for broadcast) — IP address of remote host to which data is sent
`127.0.0.1` (default) | dotted-quad expression

Remote port — IP port of remote host to which data is sent
`25000` (default) | integer from 1 to 65,535

Local port — IP port number of application on target from which data is sent
`-1` (default) | integer from 1 to 65,535

Byte order — Byte order
`LittleEndian` (default) | `BigEndian`

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.