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Avnet Boards General No output from Hello World
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Forum Thread Details
  • State Not Answered
  • Replies 3 replies
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  • Views 1207 views
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  • zedboard
  • evaluation-board
  • hello world
Related

No output from Hello World

aranurea
aranurea over 5 years ago

Hi everyone,

 

I understand this is a very basic issue but I cannot seem to wrap my head around what is going on. So I've a ZedBoard and have made a basic design block which I've used to generate a bitstream and exported hardware with (in Vivado 2020.1). I then load that hardware with Vitis 2020.1 and create a Hello World project with the template. I have TeraTerm open on the side with the proper settings (115200, etc.) and have the proper drivers installed. I then Build the applcation and Run it as Debugger(GDB) and the program is uploaded to the ZedBoard fine. The blue LED for "Done" turns on and there is not output to TeraTerm. I've also used the built in terminal in Vitis to receive output and there is nothing either. I've checked the BSP settings and both stdin and stdout are set to UART1 as expected, yet nothing I try can get output. The only way i get anything to output is to boot from the provided SD Card where it boots up a minimal linux OS. I've gone through everything multiple time, used multiple variations of the design block and nothing can get any output for the Hello World project. Please help.

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  • narrucmot
    0 narrucmot over 5 years ago

    Hi Amandeep,

     

    When ZedBoard was released 8 years ago it was a co-designed and co-branded effort between Avnet and Digilent.  It is manufactured by Digilent and they continue to support it.  Avnet sells the ZedBoard, but no longer creates any support material (BSPs, tutorials, etc.) for it.  You will need to contact Digilent directly for contemporary Xilinx tools support for ZedBoard.

    https://reference.digilentinc.com/reference/programmable-logic/zedboard/start

     

    --Tom

     

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  • narrucmot
    0 narrucmot over 5 years ago

    You may also want to check the linker script for your sw application and make sure it is set to run from external memory and not on-chip memory (OCM).  The OCM is very small and chances are your app is too big fit and run there.

     

    --Tom

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  • aranurea
    0 aranurea over 5 years ago in reply to narrucmot

    Sorry for the multiple replies. I've deleted the others as I'm back to square 1 with this. For some reason all the memory tests work and output to TeraTerm. How do I check the linker script?

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