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Adventurer
Adventurer
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Registered: ‎09-10-2019

ZCU111 signals and clocking

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Hello,
We have the zcu111 and i am a beginner with all these stuff. I would like to do some basic questions:

1) The design "Analyze That: Unboxing the RF Analyzer Tool Part 2" somewhere refers about a QAM-256 15MHz signal. How was the bandwidth calculated? (Same question goes to the other .lvm .tdms signals that can be loaded to the RF analyzer GUI).   Also, PG269 does not refer something about the channel bandwidth.Is there any restriction concerning the RF part? Only the Frequency planner given seems to give some restrictions. Would be possible to give some instructions on how to use the frequency planner about choosing values? (Of course is dependent of each design, but are there any addtional rules? ) 

2) Would be possible to interpolate or decimate more than x8 in the ZCU111? Is the only way adding custom logic? Like in the SSRIP Design example? 

3) In the "Analyze That: Unboxing the RF Analyzer Tool Part 1"  it is created an example design with a microblaze to interact with the RF analyzer GUI. But in the given design examples in rdf0476-zcu111-rf-dc-eval-tool-2019-1 there is no microblaze.Did microblaze in the first example replaced the zynq? Which is the way to interact with the RF analyzer GUI with additional custom logic using a zynq ? Do we need something specific in a Block design or we just create the design and load the .bit in the RF analyzer GUI?

Thank you very much,
Theo

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Community Manager
Community Manager
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Registered: ‎08-30-2011

Hello Theo,

1. You can use Matlab tool generate the baseband signal save it to the lvm format directly or save the result to mat file and tranform the mat file to tdms file by using this tool downloaded from this answer record.

https://www.xilinx.com/support/answers/71687.html

The channel bandwidth is 80% nyquist zone. You can refer to the section in PG269 introducing FIR filter part.

image.png

 

2. Yes, the decimation and interplation value can only be set up to x8

3. Yes, RF anylzer design includes microblaze. But TRD design is using the PS zynq instead to communicate with the RF GUI. The entire design is based on a linux system.

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Highlighted
Community Manager
Community Manager
383 Views
Registered: ‎08-30-2011

Hello Theo,

1. You can use Matlab tool generate the baseband signal save it to the lvm format directly or save the result to mat file and tranform the mat file to tdms file by using this tool downloaded from this answer record.

https://www.xilinx.com/support/answers/71687.html

The channel bandwidth is 80% nyquist zone. You can refer to the section in PG269 introducing FIR filter part.

image.png

 

2. Yes, the decimation and interplation value can only be set up to x8

3. Yes, RF anylzer design includes microblaze. But TRD design is using the PS zynq instead to communicate with the RF GUI. The entire design is based on a linux system.

-------------------------------------------------------------------------------------------------
Don’t forget to reply, kudo, and accept as solution.
-------------------------------------------------------------------------------------------------
如果提供的信息能解决您的问题,请标记为“接受为解决方案”。
如果您认为帖子有帮助,请点击“奖励”。谢谢!
-------------------------------------------------------------------------------------------------

View solution in original post