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3805RE: [Altair Computer Club] Re: Looking for bootable disks for Altair 8800bt + Micropolis 1053 II drive

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  • Jack Rubin
    Jul 5, 2014
      That figures. Thanks.

      > -----Original Message-----
      > From: altaircomputerclub@yahoogroups.com
      > [mailto:altaircomputerclub@yahoogroups.com]
      > Sent: Saturday, July 05, 2014 10:43 AM
      > To: Jack Rubin j@... [altaircomputerclub]
      > Subject: Re: [Altair Computer Club] Re: Looking for bootable disks for Altair
      > 8800bt + Micropolis 1053 II drive
      >
      > On Saturday (07/05/2014 at 03:33PM +0000), Jack Rubin j@...
      > [altaircomputerclub] wrote:
      > > I’ve got some hard-sector disks for the Heathkit H-8/H-17. Will these work
      > for the Micropolis drives (I’ve got a vested interest in the answer)? I’ve lost
      > track of the number of sectors for each application.
      >
      > Hi Jack...
      >
      > I think the Micropolis, if using a controller based on the original Micropolis
      > design, will require 16-hole hard-sector media while the
      > H8/H-17 stuff as we know, is 10-hole.
      >
      > Chris
      >
      > > From: altaircomputerclub@yahoogroups.com
      > > [mailto:altaircomputerclub@yahoogroups.com]
      > > Sent: Saturday, July 05, 2014 12:52 AM
      > > To: altaircomputerclub@yahoogroups.com
      > > Subject: Re: [Altair Computer Club] Re: Looking for bootable disks for
      > > Altair 8800bt + Micropolis 1053 II drive
      > >
      > >
      > >
      > >
      > > Cool. It probably makes the most sense to get TURMON running. I'll see if i
      > can find the time to assemble my 1702 eprom burner kit sometime soon
      > (unless someone out there is able to burn one for me :)). The only other
      > question is where to find media -- I have a ton of soft-sectored 5.25" disks, but
      > very very few hard-sectored and none of those are spares. Any suggestions for
      > finding disks?
      > >
      > > Thanks,
      > > Josh
      > >
      > > On 7/3/2014 11:26 AM,
      > deramp5113@...<mailto:deramp5113@...>
      > [altaircomputerclub] wrote:
      > >
      > >
      > > Everything still looks good. I see two approaches:
      > >
      > > Without the TURMON PROM, I'll have to create a bootable disk and send it
      > to you. This adds two variables: 1) Will my drive's alignment create a floppy
      > disk that can be read with your drive's current alignment, and 2) do the SIO
      > board, internal serial cable, external serial cable, and your terminal all work
      > properly?
      > >
      > > With the TURMON PROM, we can prove that the Turnkey board's serial port,
      > wiring and your terminal are working, and we could then write the bootable
      > disk with your own drive using a disk image file I could email you (I have
      > utilities that are easily loaded using TURMON to write disk images files to the
      > Micropolis drives). This eliminates the potential of drive incompatibility. We'll
      > use the Turnkey serial port as the console for CP/M. We could then create a
      > version that uses the IMSAI SIO board if you want.
      > >
      > > Your FDC is not strapped at the "standard" Vector-Graphic 56K configuration
      > of F800, it is strapped at F400, so there won't be a conflict with TURMON.
      > Frankly, I've seen TURMON versions configured for RAM at FC00, F800 and
      > C000. Your Turnkey board has its RAM at C000, so it may have had one of the
      > "newer" versions of TURMON installed at one time. When you burn the
      > TURMON PROM, we'll have to see what address it loads for the stack pointer
      > so we know where to put RAM.
      > >
      > > Mike
      > >
      > >
      > >
      > >
      > >
      > >
      > > ________________________________
      > > No virus found in this message.
      > > Checked by AVG - www.avg.com<http://www.avg.com>
      > > Version: 2014.0.4716 / Virus Database: 3986/7802 - Release Date:
      > > 07/05/14
      >
      > --
      > Chris Elmquist
      >
      >
      > ------------------------------------
      > Posted by: Chris Elmquist <chrise@...>
      > ------------------------------------
      >
      >
      > ------------------------------------
      >
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      >
      >
      >
      > -----
      > No virus found in this message.
      > Checked by AVG - www.avg.com
      > Version: 2014.0.4716 / Virus Database: 3986/7802 - Release Date: 07/05/14
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