Linux on access technology

[Tom Fowle]

And, since the software was all in eprom there wouldn't be means for
upgrading without burning new eproms.

I wonder what speech synthesizer they used suppose must have been based on
the long dead TI SPo256.
Tom Fowle

On Tue, May 24, 2016 at 09:55:46PM -0700, Gregory Nowak wrote:
> Interesting to know what the cpu actually was. I knew it was z80/z180
> compatible, but that's it. As far as the clock speed, someone once
> told me the Blazie units ran at 6-8 MHz, 12 MHz if you got the double
> speed upgrade.
> 
> Greg
> 
> 
> On Tue, May 24, 2016 at 08:31:47PM -0700, Tom Fowle wrote:
> > I worked on a project to try to develop a TTY modem for the Braille Lite,
> > Dean was extremely tight about giving me any info about how the lite was
> > done.  I believe they used a Hitachi HD64180 microprocessor which was a Z80
> > offshoot. Pretty sure they had no more than about 2 megs of ram and probably
> > 64K of eprom Don't know about the clockspeed but bet it was pretty kreeky. 
> > I don't believe it was ever field upgradable, Dean said something to me
> > about using Ymodem to upload programs and having nothing but trouble with
> > it.
> > Considering the instability of the hardware I think it'd be a bucket of
> > squashed worms.
> > Tom fowle
> 
> 
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