Re: Update on Carte Blanche status.

["Michael J. Mahon" <mjmahon@aol.com>]

Michael J. Mahon wrote:
> Alex Freed wrote:
> > Michael J. Mahon wrote:
> > > That sounds great, Steve.  It shouldn't be too hard to bit-bang it
> > > at 50kbits/sec or so, assuming that the FPGA doesn't limit the speed.
> >
> > No worries here - the FPGA doesn't mind 12 MHz clock :)
> >
> > > Alex mentioned configs of about 160K bytes, so that works out to about
> > > 1280kbits/50kbits or around 30 seconds of data transfer over JTAG,
> > > plus a few seconds to read the config file from a hard disk--sounds
> > > quite reasonable.  It should be quicker than booting a PC.  ;-)
> >
> > I suggest you may want to start reading xapp058 available on the Xilinx'
> > web site - using a microcontroller to program FPGAs. In this case 
> > Apple can impersonate a microcontroller. Or you can start with some 
> > other implementation of this not quite trivial code that will need to 
> > be ported to Apple. Sounds like a fun project for somebody.
>
> Thanks, Alex--I'll take a look.

Xapp058 refers to three C files and their associated header files, but
doesn't describe where to find them:

lenval.c and lenval.h
micro.c  and micro.h
ports.c  and ports.h

I imagine that they are a tiny part of a huge development system
download, but if anyone has them readily available, I'd appreciate
a copy by email.

TIA,

-michael

NadaNet 3.0 for Apple II parallel computing!
Home page:  http://home.comcast.net/~mjmahon/

"The wastebasket is our most important design
tool--and it's seriously underused."