[sebhc] Hello to all H-8 Users!

Collado, Norberto norberto.collado at hp.com
Fri Jun 4 10:29:58 CDT 2004

Hello Ron,

	If I recall properly my H-8 was booting CP/M and H-DOS from the
10 meg hard drive. It was using the SASI interface card from Heathkit to
a controller than converted from SASI protocol to MFM format. SASI was
replaced by SCSI. An alternate option will be to find a converter from
ux-mac-addonics-adaec7726h-shopping.htm) and update H-DOS or CP/M to
handle it. 

	I think it will be easier to use your design. If you can use a
single PAL for your design that will be great!  I will loved  to upgrade
to an IDE to keep the system going, because eventually my MFM disk drive
will stop working and then will be back to floppies again. I will need
to put together my H-8 to give you more information and changes we did
back them to the OS to support the MFM 10 Meg hard drives.


-----Original Message-----
From: sebhc at sebhc.org [mailto:sebhc at sebhc.org] On Behalf Of West, Ronald
Sent: Friday, June 04, 2004 10:12 AM
To: 'sebhc at sebhc.org'
Subject: RE: [sebhc] Hello to all H-8 Users!

Collado, Norberto said:
>     I still have my H-8 and last time it was power-up was in
> 1986 after moving from Puerto Rico to Framingham, MA and it 
> has all the improvements that I mentioned; plus a 10 Meg had 
> drive which I will love to upgrade to an IDE drive if someone 
> has done it. Once I unboxed my H-8 I will let you know what 
> goodies I still have.


I looked at the super buffer board and that is way cool. You mention
above that you had a 10 Meg drive attached also. What O/S was used to
access that drive? Was HDOS able to see and use the whole thing?

I am currently working on an IDE interface for the H-8. Development has
been slow for a while due to other things going on. Trying to use
original design techniques and the same logic used on the original
boards to keep it close to what might have come out of Benton Harbor
(not sure if that has a lot of value but it sounds good <wink>). Thought
of using a PAL to decrease the number of IC's on board but I know most
folks don't have the means to program one of those, so am sticking to
discreet IC's and will see what the chip count is when I am done. 

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