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PicoZed Hardware Design Trouble connecting to PicoZed to program bitstream via JTAG
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  • picozed jtag connection
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Trouble connecting to PicoZed to program bitstream via JTAG

richa93
richa93 over 1 year ago

Hello All,

 

Hardware used:

1. PicoZed FMC Carrier Card V2 + PicoZed 7Z030 SOM

2. Digilent JTAG HS3 cable

Software used: Vivado 2020.1

 

I want to program the Programmable logic with bitstream via JTAG connection through Vivado. But I am getting an error message "No devices detected on target" on either trying to "auto-connect" or "open new target with different JTAG clock frequencies" option under "open hardware manager" in Vivado. Error message is shown in the snippet below.

Following are the jumper settings:

1. JP3 is closed in position 1-2
2. JP4 is closed
3. JP5 closed in the position 1-2

4. PicoZed SOM is set in JTAG boot mode

 

On turning on the power of the board, PG_MODULE(D4 LED), VIN_HDR(D5 LED) and D14 LED turns on (carrier board) and D3 LED turns on (PicoZed SOM). I have previously tried to perform SD boot which was successful and PS red LEDs flashed.

Could you please help me figure out what could be the issue?

 

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  • narrucmot
    narrucmot over 1 year ago +1 verified

    Hi Richa,

     

    Can you verify that your SOM is fully seated in the connectors to the carrier card?  Even though SD card boot works, the JTAG signals may not be fully connected.  The SOM connectors are very stiff…

  • narrucmot
    0 narrucmot over 1 year ago

    Hi Richa,

     

    Can you verify that your SOM is fully seated in the connectors to the carrier card?  Even though SD card boot works, the JTAG signals may not be fully connected.  The SOM connectors are very stiff and sometimes difficult to mate the SOM to the carrier.

     

    Also, are you using the Vivado tools on a Linux or Windows host?  I have noticed on a Linux host that the JTAG drivers are very finicky and sometimes require a few retries to get Vivado to recognize the Zynq device.

     

    --Tom

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  • richa93
    0 richa93 over 1 year ago in reply to narrucmot

    Hello Tom,

     

    Thank you for your suggestion.

    It worked after unseating and seating the board again to the carrier board.

    I am using the Vivado tools on a Windows host.

     

    Regards,

    Richa

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  • heldur86
    0 heldur86 7 months ago

    Hi Richa Singh!

     

    Is it possible to contact you directly? Via PM, via another channel?

    I would like to talk about AES-Z7PZ-7Z030, that you have been using.

     

    Thank you!

     

    Heldur

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