TCP Write

Send TCP/IP packets to remote host over TCP/IP network

• 

Libraries:
SoC Blockset / Processor I/O

Description

The TCP Write block sends TCP/IP packets to a remote host over a TCP/IP (Transmission Control Protocol/Internet Protocol) network.

Ports

Input

data — Input data

numeric vector

Input data, specified as a numeric vector. The block sends this data over a TCP/IP network to the remote host.

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

Output

msg — Stream of TCP/IP packets sent to the remote host

scalar

This message port sends TCP/IP 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

Network role — Set the block as server or client

Client (default) | Server

To configure this block as a TCP/IP client or server, set this parameter to Client or Server, respectively.

When you set this parameter to Client, you must provide the remote IP address and remote IP port number of the TCP/IP server to which you want to send TCP/IP packets. Specify this information by using the Remote address and Remote port parameters.

When you set this parameter to Server, you must provide the local IP port number, which acts as the listening port of the TCP/IP server running in the hardware. Specify this information using the Local port parameter.

Remote address — IP address of remote server to which TCP/IP packets are sent

127.0.0.1 (default) | dotted-quad expression

Specify the IP address of the remote server to which you want to send TCP/IP packets.

Dependencies

To enable this parameter, set the Network role parameter to Client.

Remote port — IP port of remote server to which TCP/IP packets are sent

25000 (default) | integer from 1 to 65,535

Specify the port number of the remote server to which you want to send TCP/IP packets.

Dependencies

To enable this parameter, set the Network role parameter to Client.

Local port — IP port on sending host from which TCP/IP packets are sent

-1 (default) | integer from 1 to 65535

When the Network role parameter is set to Client, specify the IP port number of the application from which you want to send TCP/IP packets. The default value -1, sets this IP port number to a random available port number and uses that port to send the packets.

When the Network role parameter is set to Server, this local port acts as the listing port of the TCP/IP server running in the hardware. In this case, specify a value from 1 to 65,535 for this parameter.

Byte order — Byte order

LittleEndian (default) | BigEndian

Byte order of the TCP/IP packets, specified as one of these values:

• LittleEndian — Sets the byte order of TCP/IP packets to little endian.

• BigEndian — Sets the byte order of TCP/IP 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