SDR using AD9361 multi-FMCOMMS I get the following error.
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I ran the following MATLAB code and get the following error code:
Transmit and Receive LTE MIMO using Analog Devices AD9361/AD9364.
It is not decoding correctly. I get the following errors:
The error file is attached along the error.txt file.
Can someone help me what is going on? It is to do with the MATLAB.
Thanks
JAR
3 Kommentare
Ross Elliot
am 16 Apr. 2019
Just to confirm that you are running this example (Transmit and Receive LTE MIMO Using a Analog Devices AD9361/AD9364) on two separate Zynq boards, each with a different IP address?
In order to do that you would need to modify the example code. Can you please attach your code, and I can take a look?
Can you also confirm that running the example on a single Zynq board, unmodified, works as expected?
Thanks,
Ross.
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Ross Elliot
am 17 Apr. 2019
The reason that your version is failing is because you have modified the code in the ltePDSCHDecode function on line 182 where lteDeprecode is called. The second input to the function should be a structure, but you are passing a char. The error message that you are seeing explains this:
Error using mwltelibrary The MEX Library function call (lteDLDeprecode) resulted in an error: Parameter is not a structure (error getting structure field NLayers)
You have also modified the receive algorithm on line 362 of antead9361.m so that you are no longer assigning the detected number of cell reference ports to the eNodeB structure. This will also cause the receiver to fail to decode.
I modified your version of ltePDSCHDecode to be the same as the shipping LTE Toolbox function, and reverted your change in antead9361.m to assign the detected value of 'CellRefP' to the eNodeB structure, 'enb', and was able to run decode successfully.
Thanks,
Ross
3 Kommentare
Neil MacEwen
am 30 Mai 2019
Hi Jarul,
I'm glad to hear you have got the code working for two devices. At this moment we have no plans to update our example to work on two devices, many of our customers only have one board and this example can be used by them. If people want to use two boards, they can do as you have done. If you wish to share your code further, you can contribute to File Exchange.
Thanks,
Neil
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