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Message-ID: <CA+EaD-avB1zhTXYw+KyXQdMtT6kU3OHkg6cgUnP-s9=BXzrEbQ@mail.gmail.com>
Date: Tue, 22 Apr 2014 10:00:47 +0200
From: Katja Malvoni <kmalvoni@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: ZedBoard: bcrypt
ᐧ
On 22 April 2014 00:02, Solar Designer <solar@...nwall.com> wrote:
> > On my ZedBoard, I get performance of 1855 c/s on self test - lower than
> 70
> > cores because of data transfers.
>
> And it's unreliable during actual cracking, right?
>
It can't do actual cracking - every time I've tried it, the board stopped
responding. It didn't reboot, I had to power-cycle it.
> Oh, in those tweets you couldn't read (sorry!), Sylvain suggested that
> we measure Zynq core voltage via its built-in ADC. Can you try to
> include this in a bitstream? Is this voltage directly available as ADC
> input or do we need to connect it physically? (We can ask Sylvain to
> clarify whether he meant a purely software thing or also an added wire.)
> I think this isn't worth much of your time, given that you need to
> refocus on ztex anyway, but it's a nice experiment and a useful tool for
> when we return to Zynq just to include "final" speeds for it on a
> presentation slide or whatever.
>
I can add AXI XADC (
http://www.xilinx.com/products/intellectual-property/axi_xadc.htm) in
Xilinx platform studio and connect it to PS GPIO via AXI bus.
>From quick glance at
http://www.xilinx.com/support/documentation/user_guides/ug480_7Series_XADC.pdf,
it seems to be a software thing.
Katja
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