Run UDP as Simulator for OFDM TX/RX

I tried to run the Simulate portion of

https://www.mathworks.com/help/soc/ug/OFDMTransmitandReceiveUsingXilinxRFSoCDevice.html

I opened both soc_OFDM_top.slx and soc_OFDM_hostUDPReceive.slx and ran both of them. However, the constellation scope in soc_OFDM_hostUDPReceive.slx does not show anything.

How can I fix it? Thank you very much.

Answer 1

[Kranti Balaga]

Hi,

I was unable to reproduce this issue. I tried in R2024a and was able to get all the outputs and the constellation. I have attached a screenshot of my run for your reference. Please find the attachment.

You can run untill the simulation time ends.

Thanks,

Kranti

[Chao-Hwa Chen]

Did you do any settings change besides setting enableInternalLoopback as true? I also changed both DAC/ADC sampling rate to 3932.16 MSPS.

[Kranti Balaga]

I opened the example and run the soc_OFDM_top and soc_OFDM_hostUDPReceive models in default configuration.Not changed any settings.

[Chao-Hwa Chen]

Today I tried it on R2022a. I ran

openExample('xilinxsoc/OFDMTransmitAndReceiveUsingXilinxRFSoCDeviceExample')

Since the example files were moved to my OneDrive Folder, I moved the files into a working folder at

C:\matlab\OFDMExample

I copied the files into OFDMExample folder, opened soc_OFDM_top.slx, soc_OFDM_hostUDPReceive.slx and related slx files and saved it at OFDMExample folder.

I ran Ctrl+D to make sure both soc_OFDM_top.slx and soc_OFDM_hostUDPReceive.slx were without errors. I ran soc_OFDM_top.slx first and then soc_OFDM_hostUDPReceive.slx and there was still no RX constellation. Could you see if I did anything wrong?

[Kranti Balaga]

I ran it in R2022a as well with no issues, and I did pretty much the same. Open the example model and run it.

Attached screen shot.

It may be a constellation diagram issue. Could you capture the data before the constellation by using a workspace block, plot the constellation, and see whether it appears?

Also log the signals in the Register subsystem and see the status of the input and output signals.

I am unable to reproduce your issue. Please contact your sales representative or the respective application engineer for better insight into your issue.

Thanks,

Kranti