cancel
Showing results for 
Search instead for 
Did you mean: 
Highlighted
Adventurer
Adventurer
4,275 Views
Registered: ‎12-03-2013

Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

Hi,

 

We plan to use a BPI flash with Xilinx UltraScale and UltraScale+ devices to meet the 100ms boot requirement for PCIe.

Is there any particular family of flash recommended by Xilinx which will meet our requirements.

 

Regards

Ayusman 

0 Kudos
13 Replies
Highlighted
Moderator
Moderator
4,253 Views
Registered: ‎07-23-2015

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

@ayusman100488 Check Appendix C of UG908 https://www.xilinx.com/support/documentation/sw_manuals/xilinx2016_4/ug908-vivado-programming-debugging.pdf

- Giri
--------------------------------------------------------------------------------------------------------------------
There's no such thing as a stupid question. Feel free to ask but do a quick search to make sure it ain't already answered.
Keep conversing, give Kudos and Accept Solution when you get one.
-----------------------------------------------------------------------------------------------------------------------
0 Kudos
Highlighted
Scholar
Scholar
4,247 Views
Registered: ‎06-05-2013

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

@ayusman100488 As mentioned, You have to refer UG908 for the supported flashes and choose the one that meets your requirement. You may also check VCU108 tandem example and flash used (MT28GU01GAAA1EGC-0SIT) for the reference.

#86
http://www.xilinx.com/support/documentation/ip_documentation/pcie3_ultrascale/v4_2/pg156-ultrascale-pcie-gen3.pdf

-Pratham

----------------------------------------------------------------------------------------------
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.
----------------------------------------------------------------------------------------------
0 Kudos
Highlighted
Adventurer
Adventurer
4,226 Views
Registered: ‎12-03-2013

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

@pratham@gnarahar

 

I saw the recommended BPI flash parts mentioned in the UG908. The micron parts are available in 2 options.

- Supports Synchronous read

- Supports Asynchronous read

 

The part used in VCU108 EVM supports synchronous read but is currently EOL pending. Actually all the synchronous read parts from Micron are EOL pending. Only the asynchronous read parts are available in production.

 

My question is that with asynchronous read parts, the effective clock rate for read reduces by almost half and for some FPGAs this may lead to more bitstream loading time. This will in turn make it difficult to meet the 100ms boot requirement for PCIe.

 

Regards

Ayusman 

 

0 Kudos
Highlighted
Scholar
Scholar
4,222 Views
Registered: ‎06-05-2013

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

@ayusman100488 Did you check with the Micron for the replacement of MT28? also for other NOR synchronous parts?

-Pratham

----------------------------------------------------------------------------------------------
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.
----------------------------------------------------------------------------------------------
0 Kudos
Highlighted
Adventurer
Adventurer
4,215 Views
Registered: ‎12-03-2013

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

@pratham

 

I checked with them. The alternates they have suggested are all asynchronous read parts. I was wondering this issue would be faced by other customers also and Xilinx would be aware and help us out in this.

 

Regards

Ayusman

0 Kudos
Highlighted
Scholar
Scholar
4,213 Views
Registered: ‎06-05-2013

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

Let me take a look into this. I will get back to you.
-Pratham

----------------------------------------------------------------------------------------------
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.
----------------------------------------------------------------------------------------------
0 Kudos
Highlighted
3,608 Views
Registered: ‎05-10-2017

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

Is there a solution for this issue.  We have the same problem.  Looking for a BPI flash recommendation to replace the Micron parts that will be obsolete.

0 Kudos
Highlighted
3,607 Views
Registered: ‎05-10-2017

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

How did you solve this issue?

0 Kudos
Highlighted
Moderator
Moderator
3,556 Views
Registered: ‎02-07-2008

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

@vidriodevelops, I'll contact you offline regarding this issue.

-------------------------------------------------------------------------
Don’t forget to reply, kudo, and accept as solution.
-------------------------------------------------------------------------
0 Kudos
Visitor
Visitor
1,797 Views
Registered: ‎11-26-2015

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

Hi ,

  would you please share on the forum your findings on this flash issue?

 

We have a xcku15p ES2 (Engineering Sample) and Vivado doesn't support neither Tandem PCIe nor Tandem Flash, so we need to select Synchronous flash (faster than Asynchronous) in order to fit the PCIe "100 ms boot time requirement".

 

Thanks.

0 Kudos
Highlighted
1,610 Views
Registered: ‎05-21-2013

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

Hi All,

 

I'm facing the same problem of Micron Synchronous BPI going to be EOL. May I know what are the recommended BPI options?

0 Kudos
Highlighted
Moderator
Moderator
1,387 Views
Registered: ‎02-07-2008

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

@fscandro_pri, @sngyeongkain, if this is still an issue for you, please contact your local Xilinx FAE.

-------------------------------------------------------------------------
Don’t forget to reply, kudo, and accept as solution.
-------------------------------------------------------------------------
0 Kudos
Highlighted
Moderator
Moderator
1,375 Views
Registered: ‎04-12-2017

Re: Recommended BPI flash for Xilinx Ultrascale and UltraScale+ devices

Hello @vidriodevelops @sngyeongkain @fscandro_pri,

 

Yes, its true that synchronous BPI flashes of Micron are going end of life and there is no plan as well to update this list in future as well.

To meet this timing constraints one should opt for Tandem PCIe mode of configuration.

In this method one can attain all the fast configuration requirements by implementing the Bitstream compression.

Please refer configuration user guide and AR#64761 for more help.

 

Hope this helps.

Thank you.

 

-------------------------------------------------------------------------
Don’t forget to reply, kudo, and accept as solution.
-------------------------------------------------------------------------
0 Kudos