Hi Jonathan,
Thanks for pointing out the ethernet IP.
Currently, I need to boot linux on a RISC-V based system and found lowrisc
to be simple and easy to follow.
I can do without the ethernet IP for now, login through the UART interface
and work on building a open-emdedded layer for the filesystem.
I did look at the v0.2, untethered version also, the main point being easy
to port to the Virtex 2000T boards that I have here.
The end goal would be to integrate with REDEFINE, a massively parallel many
core architecture (this work was presented at the RISC V Workshop 2016. Video
@ 7:40 mins <
https://www.youtube.com/watch?v=PCzAOYJa-xY>)
Thanks & Regards,
Anup Kini.
On Tue, Jan 23, 2018 at 2:16 PM, Dr Jonathan Kimmitt <jrrk2(a)cam.ac.uk>
wrote:
Hi Anup,
I don't know whether the Ethernet is the primary capability of interest.
If so, you
need to be aware that our circuit design was specifically targeted at the
RMII PHY
of the Nexys4-DDR. If you have a different system such as MII, GMII, or
XGMII then this
block would need quite a bit of adaptation, but there are some adaptor IPs
in the Vivado
library which may be a good starting point. You can also consult Alex
Forencich's repository
which has a number of IPs for different variations of Ethernet.
Regards,
Jonathan
On 23/01/18 08:40, Anup Kini wrote:
> Hi Alex,
>
> Thank you for getting back.
>
> I am sorry, it was my mistake. The vivado tool ran out of memory and
> crashed.
> I was able to build it successfully on a bigger server.
>
> I have started with the port to V2000T, looking through the scripts to
> figure out the block design and the additional clocks required.
>
>
>
> Thanks & Regards,
> Anup Kini.
>
> On Tue, Jan 23, 2018 at 2:03 PM, Alex Bradbury <asb(a)lowrisc.org> wrote:
>
> On 19 January 2018 at 10:27, Anup Kini <anupkini(a)gmail.com> wrote:
>>
>>> Hi All,
>>>
>>> I am trying to build the lowrisc 0.5 release for a custom Virtex 7 2000T
>>> device.
>>>
>>> To begin with I tried to build the nexus 4 ddr design, but the
>>> implementation fails.
>>> Has anyone been successfull in pulling the latest 0.5 release from
>>> github
>>> and building it.
>>>
>>> I have attached the vivado log in this mail.
>>> Looking forward for any help.
>>>
>> Hi Anup. Thanks for trying our latest release. The log doesn't seem to
>> have made it through with your message - could you perhaps try to
>> share it again?
>>
>> Thanks,
>>
>> Alex
>>
>>