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Beginner
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JTAG can't connect sometime

Dear Sir/Madam,

Jtag cant't connect sometime , and error hint below:

 

微信图片_20200608171119.png​Ted.Gao

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7 Replies
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Employee
51 Views

Hi Ted,

 

There are few possibility that causes this error, can you check the following?

[1] Can you check if you are selecting the correct configuration scheme, device OPN in Quartus design?

[2] Can you change TCK frequency to 6MHz?

 

Thank You.

 

Regards,

Bruce.

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Beginner
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Hi SooY, 1. The OPN is correct 2. I use usb blaster ,can’t change the frequency. Ted
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Employee
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Hi Ted,

 

Can you please elaborate further so that i can get a full picture on this scenario?

 

May i know what configuration scheme you are using? Have you tried to program with a SOF file? When you mention about sometimes JTAG cant connect. What does this mean? Please elaborate.

 

Thank YOu

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Beginner
51 Views

Hi SooY Solved, Thanks. Ted.Gao
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Employee
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Hi Ted,

 

Oh, i am glad it helps. May i know what did you do to make it work? Perhaps we can help the community in this forum as well.

 

Thank You.

 

Regards,

Bruce

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Beginner
51 Views

Hi SooY, The welding of the plate is not very good. After re welding, the problem is solved. Ted.Gao
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Employee
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Hi Ted,

 

Thanks for your sharing. Hopefully it helps the community here. I am closing this thread. Please rate me good if my support is good.

 

Thank You.

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