DocumentationHelp Center
Start or stop echo UDP server
echoudp("on",port)
echoudp("off")
example
echoudp("on",port) starts a UDP server at the specified port number.
port
echoudp("off") stops the echo server.
collapse all
This example shows how to set up an echo UDP server.
Start the echoserver using the echoudp function on port 4012. Create a udpport instance to communicate with the echo server.
echoudp
udpport
echoudp("on",4012) u = udpport
u = UDPPort with properties: IPAddressVersion: "IPV4" LocalHost: "0.0.0.0" LocalPort: 58379 NumBytesAvailable: 0 Show all properties, functions
Write data using the write function to the echo server running on port 4012.
write
write(u,1:10,"uint8","127.0.0.1",4012);
The echo server sends back the data written to it. Read this data back using the read function.
read
data = read(u,10)
data = 1×10 1 2 3 4 5 6 7 8 9 10
Stop the echo server and clear the udpport object.
echoudp("off") clear u
Port number of the server, specified as a number between 1 and 65535, inclusive.
Data Types: double
double
echotcpip | tcpclient | udpport
echotcpip
tcpclient
A modified version of this example exists on your system. Do you want to open this version instead?
You clicked a link that corresponds to this MATLAB command:
Run the command by entering it in the MATLAB Command Window. Web browsers do not support MATLAB commands.
Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select: .
You can also select a web site from the following list:
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.
Contact your local office
Get trial now