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Observer anassamir
Observer
6,680 Views
Registered: ‎04-19-2011

can i retrieve the VHD file from the bit file

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Hi everyone,

 

I guess i lost a very important Vhd file,,,,all i have is the bit file...is it possible that i could retrive the VHD file from the bit file i have???


Thanks alot in advance 

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1 Solution

Accepted Solutions
Instructor
Instructor
8,817 Views
Registered: ‎07-21-2009

Re: can i retrieve the VHD file from the bit file

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No, you can't.  .VHD is source code.  .BIT file is (moderately encrypted) object code.

 

-- Bob Elkind

SIGNATURE:
README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369

Summary:
1. Read the manual or user guide. Have you read the manual? Can you find the manual?
2. Search the forums (and search the web) for similar topics.
3. Do not post the same question on multiple forums.
4. Do not post a new topic or question on someone else's thread, start a new thread!
5. Students: Copying code is not the same as learning to design.
6 "It does not work" is not a question which can be answered. Provide useful details (with webpage, datasheet links, please).
7. You are not charged extra fees for comments in your code.
8. I am not paid for forum posts. If I write a good post, then I have been good for nothing.

View solution in original post

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6 Replies
Instructor
Instructor
8,818 Views
Registered: ‎07-21-2009

Re: can i retrieve the VHD file from the bit file

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No, you can't.  .VHD is source code.  .BIT file is (moderately encrypted) object code.

 

-- Bob Elkind

SIGNATURE:
README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369

Summary:
1. Read the manual or user guide. Have you read the manual? Can you find the manual?
2. Search the forums (and search the web) for similar topics.
3. Do not post the same question on multiple forums.
4. Do not post a new topic or question on someone else's thread, start a new thread!
5. Students: Copying code is not the same as learning to design.
6 "It does not work" is not a question which can be answered. Provide useful details (with webpage, datasheet links, please).
7. You are not charged extra fees for comments in your code.
8. I am not paid for forum posts. If I write a good post, then I have been good for nothing.

View solution in original post

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Historian
Historian
6,675 Views
Registered: ‎02-25-2008

Re: can i retrieve the VHD file from the bit file

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@anassamir wrote:

Hi everyone,

 

I guess i lost a very important Vhd file,,,,all i have is the bit file...is it possible that i could retrive the VHD file from the bit file i have???


Thanks alot in advance 


That would require a miracle.

----------------------------Yes, I do this for a living.
Observer anassamir
Observer
6,670 Views
Registered: ‎04-19-2011

Re: can i retrieve the VHD file from the bit file

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i thought so :D

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Instructor
Instructor
6,651 Views
Registered: ‎07-21-2009

Re: can i retrieve the VHD file from the bit file

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i thought so :D

 

But you had to ask, anyway...

Has anyone thought of loading the .BIT file backwards?  This worked for the Beatles...

 

-- Bob Elkind

SIGNATURE:
README for newbies is here: http://forums.xilinx.com/t5/New-Users-Forum/README-first-Help-for-new-users/td-p/219369

Summary:
1. Read the manual or user guide. Have you read the manual? Can you find the manual?
2. Search the forums (and search the web) for similar topics.
3. Do not post the same question on multiple forums.
4. Do not post a new topic or question on someone else's thread, start a new thread!
5. Students: Copying code is not the same as learning to design.
6 "It does not work" is not a question which can be answered. Provide useful details (with webpage, datasheet links, please).
7. You are not charged extra fees for comments in your code.
8. I am not paid for forum posts. If I write a good post, then I have been good for nothing.
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Teacher rcingham
Teacher
6,635 Views
Registered: ‎09-09-2010

Re: can i retrieve the VHD file from the bit file

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"Has anyone thought of loading the .BIT file backwards? This worked for the Beatles..."

Apparently that works only 1-in-666 times!
;-)

------------------------------------------
"If it don't work in simulation, it won't work on the board."
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Visitor johngarcia
Visitor
6,555 Views
Registered: ‎02-06-2012

Re: can i retrieve the VHD file from the bit file

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Does anyone know how to retreive a bit file from an FPGA after it has been loaded onto it?

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