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chsdkj
Explorer
Explorer
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Registered: ‎07-10-2013

DSP Support For CRC Computations

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UG579 (v1.5) outlines DSP support for production of bit-wise and word-wise XOR values.  On p.43 it is indicated: "The dedicated XOR logic enables performance improvements when implementing forward error correction and cyclic redundancy checking algorithms."

 

Is an XApp or something similar available that provides detailed examples of how CRC computations can be efficiently implemented using US/US+ DSP slices?

 

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balkris
Xilinx Employee
Xilinx Employee
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Registered: ‎08-01-2008
yes XAPPs will definitely help. I will push your request.
Thanks and Regards
Balkrishan
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balkris
Xilinx Employee
Xilinx Employee
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Registered: ‎08-01-2008

We don't have any other XAPP for CRC application using DSP48 slice. DSP48 doesn't have dedicated CRC function however its possible as document says . Its supported XOR and other gates function which can use to create CRC function   

 

You can write code and see how DSP48 slice inferred correct logic. 

 

Check supported functions by DSP48 slice in attached snap shot

Thanks and Regards
Balkrishan
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chsdkj
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Balkrishan,

 

Thanks.  Note that in my opinion such an app note or XAPP could be of significant benefit to Xilinx' customers.

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balkris
Xilinx Employee
Xilinx Employee
2,249 Views
Registered: ‎08-01-2008
yes XAPPs will definitely help. I will push your request.
Thanks and Regards
Balkrishan
--------------------------------------------------------------------------------------------
Please mark the post as an answer "Accept as solution" in case it helped resolve your query.
Give kudos in case a post in case it guided to the solution.

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chsdkj
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Registered: ‎07-10-2013

Balkrishan,

 

Appreciated!

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