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 -- web site: http://www.gregn.net gpg public key: http://www.gregn.net/pubkey.asc skype: gregn1 (authorization required, add me to your contacts list first) If we haven't been in touch before, e-mail me before adding me to your contacts. -- Free domains: http://www.eu.org/ or mail dns-manager@xxxxxx _______________________________________________ Speakup mailing list Speakup@xxxxxxxxxxxxxxxxx http://linux-speakup.org/cgi-bin/mailman/listinfo/speakup