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Visitor solidum_v
Visitor
3,932 Views
Registered: ‎07-10-2017

Zynq UltraScale+ ZCU102 MPSoC UART interface cannot connect properly?

Hi All,

 

I seem to be having problems with UART interface that interacts with the MPSoC. When following the System Controller GUI Tutorial (XTP433), I can not seem to connect to the MP. The baud rate is set to 115200. When trying to set the Si5328 Frequency, the software timesout and cannot set it. Also, I tried using the GUI to just get status but again it timesout. It looks like that interface has a problem because when I did other tutorials that uses the other interfaces, the computer and the ZCU102 board seem to communicate properly. I am not sure what may be the issue here. Any ideas?

 

Thanks,

Victor 

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6 Replies
Visitor solidum_v
Visitor
3,924 Views
Registered: ‎07-10-2017

Re: Zynq UltraScale+ ZCU102 MPSoC UART interface cannot connect properly?

I should also note that when running the Board Interface Test (XTP428), all tests pass except for the ZCU102 RTC test which I believe is part of the MPSoC UART interface. 

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Scholar hbucher
Scholar
3,884 Views
Registered: ‎03-22-2016

Re: Zynq UltraScale+ ZCU102 MPSoC UART interface cannot connect properly?

The UART lite is usually configured to 9600 - and there are 4 different COM ports created, two on the PS side and two on the PL side.
See page 51 on
https://www.xilinx.com/support/documentation/boards_and_kits/zcu102/ug1182-zcu102-eval-bd.pdf

 

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Visitor solidum_v
Visitor
3,844 Views
Registered: ‎07-10-2017

Re: Zynq UltraScale+ ZCU102 MPSoC UART interface cannot connect properly?

If you look at the software install and board setup document (p. 14) it says to change the baud rate to 115200: 

https://www.xilinx.com/support/documentation/boards_and_kits/zcu102/2017_2/xtp435-zcu102-setup-es2-2017-2.pdf

 

I have actually also tried 9600 as a baud rate and still the software times out. It only seems that UART connection to the MSP430 is having trouble connecting.

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Visitor dtesone
Visitor
3,154 Views
Registered: ‎07-13-2015

Re: Zynq UltraScale+ ZCU102 MPSoC UART interface cannot connect properly?

Just curious if you (or anyone else) were ever able to find a solution?  I am finding myself in the same situation. Running the Board Interface Test, everything passes except for the RTC.

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Moderator
Moderator
3,107 Views
Registered: ‎04-12-2017

Re: Zynq UltraScale+ ZCU102 MPSoC UART interface cannot connect properly?

Hello @dtesone,

 

Can you please post the screenshot of your device manager ?

driver.PNG

Your drivers should like above snapshot.

Please confirm if your drivers are updated.

Thank you.

 

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Contributor
Contributor
2,930 Views
Registered: ‎06-06-2017

Re: Zynq UltraScale+ ZCU102 MPSoC UART interface cannot connect properly?

Hi @dtesone

 

I had the same problem with the RTC test. What I did and worked was to apply the AR# 68251 to the following file:

C:\zcu102_bit\test\ZCU102\defaults.json which is the one used by Bit.exe.

In my case in the Windows Device Manager the CP210x driver was shown as:

"Silicon Labs Dual CP2108 USB to UART Bridge: Interface 0 (COM11)"

"Silicon Labs Dual CP2108 USB to UART Bridge: Interface 1 (COM10)"

"Silicon Labs Dual CP2108 USB to UART Bridge: Interface 2 (COM9)" 

etc.

So I've replaced in the defaults.json file the reference to CP210x with the CP2108.  After that the RTC test passed.

 

PS: I use the latest BIT files i.e. rdf0377-zcu102-bit-c-2017-2.zip on Win7 PC

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