Re: CPLD in circuit programming

I have this working with C and Java.  It works quite well.
You need to create a SVF file using Xilinx iMPACT in file mode.
Then compress it using the provided utility with source code.
Then run utility on it.  Works like a champ.

Joel W.



----- Original Message ----- 
From: "Ed Anuff" <ed-w/oILpklh+wAvxtiuMwx3w@xxxxxxxxxxxxxxxx>
To: <tini-6tN4nzCoH/hBDgjK7y7TUQ@xxxxxxxxxxxxxxxx>
Sent: Friday, June 27, 2003 8:45 AM
Subject: Re: [TINI] CPLD in circuit programming


> I saw this was discussed a couple of weeks ago but it didn't seem like a
> solution was found, so I thought I'd add my 2 cents to the subject.
> Apparently, Xilinx used to support programming a CPLD from the TINI and
> published an application note to this effect:
>
> http://www.xilinx.com/xapp/xapp351.pdf
>
> Basically, it describes programming of a CPLD via it's JTAG TAP pins by
> wiring it to the the following pins on the TINI:
>
> TINI D0 -> CPLD TDI
> TINI D1 -> CPLD TMS
> TINI PCE0 -> CPLD TCK
> CPLD TDO -> TINI D2
> TINI CTX -> CPLD Reset
>
> Where it gets interesting is that rather than use the C code used in the
> current app note on the subject (http://www.xilinx.com/xapp/xapp058.pdf),
it
> used an alternate simplified mechanism described in an app note which is
no
> longer available on the Xilinx site which I was able to find with Google
>
(www.nalanda.nitc.ac.in/industry/appnotes/xilinx/documents/xapp/xapp326.pdf)
> .  I'm sure that the process for programming the CPLD via the TINI was
slow
> due to data transer speed, but it looks like assuming the programming
> instructions are "unrolled" into a byte array, that they're all sent to
the
> CPLD via a single DataPort.write call, so that the programming speed took
> place at the fatest transfer speed supported via the TINI.
>
> The Xapp351 app note describes software for the TINI that at one time was
> available for download but which appears to no longer available, probably
> because it's unsupported.  I'm posting this in the hopes that someone on
> this list downloaded it when the app note was first published and still
has
> it lying around.
>
> Ed
>
> ----- Original Message ----- 
> From: "V Efremov" <vefremov-Wuw85uim5zDR7s880joybQ@xxxxxxxxxxxxxxxx>
> To: <tini-6tN4nzCoH/hBDgjK7y7TUQ@xxxxxxxxxxxxxxxx>
> Sent: Thursday, June 12, 2003 1:43 AM
> Subject: [TINI] CPLD in circuit programming
>
> > Hi list,
> >
> > Has anyone tried programming the xilinx CPLD from the TINIIn400 itself?
> > There is an appnote an some source code how to do so from a generic
8051,
> > but I wonder what the implications on the bus may be.
> >
> > Is the XILINX in disconnected (high impedance) state while the
programming
> > is in progress?
> >
> > ~Venelin
> >
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