Universal Datagram Protocol (UDP) is a packet-based protocol that uses an Ethernet board as physical layer. Each UDP packet contains bytes provided by an application layer. You can transfer data using this protocol from a real-time application that is executing on the target computer. For more information about the UDP standard, see UDP Transport Protocol.
The Simulink® Real-Time™ implementation can support either a dedicated Ethernet network or a shared Ethernet network.
To create a dedicated Ethernet network, use a separate Ethernet board that is compatible with PCI standard bus architectures, such as PCI, PCI Express®, and PXI®. Use the Speedgoat configuration utility to configure the dedicated Ethernet board. You can run this implementation of the protocol from a real-time application that is running on the target computer. You can use it to transfer data to and from a UDP-compatible device.
To create a shared Ethernet network, use the same Ethernet hardware port as the target computer uses to communicate with the development computer. Configure the UDP Send and UDP Receive blocks to use the host-target connection setting. You can run this implementation of the protocol from a real-time application that is running on the target computer. You can also run it from a Simulink model that is running on the development computer. To transfer data to and from a UDP-compatible device that is connected to this network, use a switch.
For multicast operations, use the UDP Multicast Receive block and UDP Send block. Multicast operations are supported by the real-time application that you build from the model. Multicast receive operation is not supported in model simulation on the development computer.
|Created UDP packet bus object|
|UDP Send||Send data over UDP network to a remote device|
|UDP Receive||Receive data over UDP network from a remote device|
|UDP Multicast Receive||Receive data over UDP network from a remote device|
|Byte Packing||Construct data frames|
|Byte Unpacking||Deconstruct data frames|
|Byte Reversal/Change Endianess||Reverse little-endian data for big-endian processor|
|Shared Memory Pack||Shared memory pack|
|Shared Memory Unpack||Shared memory unpacking|
- UDP Transport Protocol
Learn about communication between the target computer and other devices with UDP packets.
- UDP Data Exchange by Using Shared Ethernet Board
Learn about UDP communication via a connection that is shared between the development and target computers.
- UDP Communication Setup
Use the UDP library blocks for communication with a shared and with a dedicated connection.
- UDP and Variable-Size Signals
Adapt variable-size signals for processing by UDP blocks.
- TCP/IP Interface (Instrument Control Toolbox)
- UDP Interface (Instrument Control Toolbox)