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Visitor helena
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1,126 Views
Registered: ‎02-08-2018

Bare metal application for Zybo board with shared DDR memory

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I'm using a Zybo board to run a parallel application. This application is supposed to run on both cores and I need them to share the DDR memory. So far I didn't find any information on how this could be done. Application xapp1079 uses OCM for inter-process communication but splits the DDR amongst the cores. I've checked the links on this question but they refer to applications with Linux or freeRTOS. 

 

If anybody had any information regarding this subject I'd be truly grateful. 

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Scholar hbucher
Scholar
1,563 Views
Registered: ‎03-22-2016

Re: Bare metal application for Zybo board with shared DDR memory

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@helena  Hello Helena, as I had promised before, I just published a new video exactly because of your request. 

Check out the link: 

http://www.vitorian.com/x1/archives/616

I hope it helps you!

 

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Scholar ericv
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1,083 Views
Registered: ‎04-13-2015

Re: Bare metal application for Zybo board with shared DDR memory

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@helena

 

to run different apps on each core and share the DDR memory does not involve much (some little details here and there).

Information on how to do this indeed is a bit sparse.

We have a freeware, with a 2 app / 2 core bare-metal demo, you can re-use to get your project moving forward..

You can download it from:

www.code-time.com

 

Regards

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Scholar hbucher
Scholar
1,564 Views
Registered: ‎03-22-2016

Re: Bare metal application for Zybo board with shared DDR memory

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@helena  Hello Helena, as I had promised before, I just published a new video exactly because of your request. 

Check out the link: 

http://www.vitorian.com/x1/archives/616

I hope it helps you!

 

vitorian.com --- We do this for fun. Always give kudos. Accept as solution if your question was answered.
I will not answer to personal messages - use the forums instead.
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Visitor helena
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1,024 Views
Registered: ‎02-08-2018

Re: Bare metal application for Zybo board with shared DDR memory

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@hbucher thank you so much, this was exactly what I was looking for. You don't happen to know any resources or documentation about this subject? I'm new to this world and the hardest thing so far has been finding relevant information. 

Scholar hbucher
Scholar
1,014 Views
Registered: ‎03-22-2016

Re: Bare metal application for Zybo board with shared DDR memory

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@helena the amount of information can be overwhelming so that is why I do these point intro videos.

You should go for xilinx "design hubs" always that possible.

https://www.xilinx.com/support/documentation-navigation/design-hubs.html

In particular for you this one is relevant

https://www.xilinx.com/support/documentation-navigation/design-hubs/dh0015-sdk-hub.html

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