Re: [Discuss OpenCPI] [Non-DoD Source] Re: GIC on the PS (UNCLASSIFIED)

From: Weusi-Akinwande, Rasheed D CTR (USA) <"Weusi-Akinwande,>
Date: Wed, 17 Apr 19 20:25:31 +0000

CLASSIFICATION: UNCLASSIFIED

Before I eliminate the possibility of using OpenCPI completely.

Can the PS write to the DDR3 in openCPI?

[With OpenCPI all communications between PS and PL on Zynq uses the AXI
interfaces (GP and HP) and no other signals.
There is no support for any other PS/PL signals. Is there something you
cannot achieve with the interfaces provided? ]

I understand that is does not support IRQ. But for clarification, can OpenCPI
support interrupts and DDR3 memory? Ie drivers?



-----Original Message-----
From: discuss [mailto:discuss-bounces_at_lists.opencpi.org] On Behalf Of James
Kulp
Sent: Thursday, April 11, 2019 10:20 AM
To: discuss_at_lists.opencpi.org
Subject: [Non-DoD Source] Re: [Discuss OpenCPI] GIC on the PS (UNCLASSIFIED)

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With OpenCPI all communications between PS and PL on Zynq uses the AXI 
interfaces (GP and HP) and no other signals.
There is no support for any other PS/PL signals.  Is there something you 
cannot achieve with the interfaces provided?
On 4/11/19 10:01 AM, Weusi-Akinwande, Rasheed D CTR (USA) via discuss wrote:
> CLASSIFICATION: UNCLASSIFIED
>
> How does OpenCPI handle interrupts fron the PL to the PS via the GIC?
>
> Can I still use the INT pin on the PS?
> How do I write the work.xml to indicate an interrupt signal?
>
>
> Rasheed
>
>
> CLASSIFICATION: UNCLASSIFIED
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Received on Wed Apr 17 2019 - 20:25:31 CDT