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Explorer
Explorer
388 Views
Registered: ‎08-31-2016

Merging bitstream with .elf not working 2018.1

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Hi,

 

I'm trying to merge the .elf and .bit file in SDK and use the generated download.bit file. Unfortunately, this is not working.

 

I've tried associating .elf in vivado too, but here too I'm facing the same issue.

 

Please let me know what could be the problem here?

 

Is any there a proven way ?

 

Regards,

Vinay

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Xilinx Employee
Xilinx Employee
313 Views
Registered: ‎10-30-2017

Re: Merging bitstream with .elf not working 2018.1

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Hi @vinay_shenoy,

 

Using URAM is not possible because there is no user defined INIT attribute and therefore the connect of RAM array cannot initialized to user defined values.

uram.PNG

Please check the Ultra RAM key features in below guide: https://www.xilinx.com/support/documentation/user_guides/ug573-ultrascale-memory-resources.pdf

 

Please use the BRAM memory.

 

Best Regards,
Srikanth
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3 Replies
Xilinx Employee
Xilinx Employee
325 Views
Registered: ‎10-30-2017

Re: Merging bitstream with .elf not working 2018.1

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Hi @vinay_shenoy,

 

are you using the BRAM for macro blaze? is the micro blaze instant is same ?

Please check once.

 

 

Best Regards,
Srikanth
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Explorer
Explorer
319 Views
Registered: ‎08-31-2016

Re: Merging bitstream with .elf not working 2018.1

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Hi @savula

I have used URAM for Microblaze. Is this possible?

Vinay
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Xilinx Employee
Xilinx Employee
314 Views
Registered: ‎10-30-2017

Re: Merging bitstream with .elf not working 2018.1

Jump to solution

Hi @vinay_shenoy,

 

Using URAM is not possible because there is no user defined INIT attribute and therefore the connect of RAM array cannot initialized to user defined values.

uram.PNG

Please check the Ultra RAM key features in below guide: https://www.xilinx.com/support/documentation/user_guides/ug573-ultrascale-memory-resources.pdf

 

Please use the BRAM memory.

 

Best Regards,
Srikanth
----------------------------------------------------------------------------------------------
Kindly note- Please mark the Answer as "Accept as solution" if information provided is helpful.

Give Kudos to a post which you think is helpful and reply oriented.