From: larry_fosdick@hotmail.com   
      
   "Doug_M"  wrote in message   
   news:gf5Qf.41187$VV4.601955@ursa-nb00s0.nbnet.nb.ca...   
   > Larry wrote:   
   >> "Doug_M"  wrote in message   
   >> news:w2MPf.40661$VV4.588735@ursa-nb00s0.nbnet.nb.ca...   
   >>   
   >>>Hi,   
   >>>   
   >>>I've got a bunch of old Montezuma Micro CP/M disks I bought a while   
   >>>back.  A couple of them have the hard disk driver for the RS 5mb drive.   
   >>>I've got the 12mb drive.  There is a text file that lists all the   
   >>>drivers for every supported hard drive.  The driver I need is   
   >>>HDRS12M.COM.  Anyone happen to have a copy of this?  There is a .DSK   
   >>>image of Montezuma Micro's Hard Disk Driver disk (awkward sentence!) on   
   >>>a couple of the TRS-80 web sites, but it seems to be corrupted.   
   >>>   
   >>>Regards,   
   >>>Doug   
   >>   
   >>   
   >> I have the disk from David Keil's site from a few years ago. It only has   
   >> drivers for the 5 and 15 MB drives.  What I found that I could do was to   
   >> use   
   >> the 15 MB driver for my 30MB drive. It worked fine for timing and all,   
   >> and   
   >> the excess space was usable by LDOS.   
   >>   
   >> When I tried to use the 5MB driver, the timings seemed to be off; I   
   >> suspect   
   >> that the 5MB is on the slower side.   
   >>   
   >> This trick might work for you as long as the driver expects the same or   
   >> fewer heads/cylinders that are in your hard drive.  I'd bet the 5 MB   
   >> driver   
   >> would work. IIRC, the 5MB Tandon TM-602 drive has 4 heads and 153   
   >> cylinders,   
   >> while the Tandon TM-603 has 6 heads and 230 cylinders.  Of course, CP/M   
   >> would only be able to access 5MB.   
   >>   
   >> Larry   
   >>   
   >>   
   > That worked Larry.  I've got my drive partitioned with CP/M on the first   
   > partition and LDOS on the rest.  Of course, I'm not getting the full   
   > amount of disk space out of the CP/M partition as the 5mb drive has 4   
   > heads and the 12 has 6.  So ultimately, I'd still like to find a copy of   
   > the driver.   
   >   
   > I tried copying some files from a floppy to the CP/M partition and some   
   > worked others repeatedly gave disk error F.  According to my manual,   
   > this is indicative of a hardware failure.  I'm thinking it make be   
   > because I'm using the wrong driver for the hard drive.  Any thoughts?   
   > Should I be asking this on a CP/M newsgroup instead?   
   >   
   > Regards,   
   > Doug   
      
   I have searched for additional drivers for MM CP/M for a few years off and   
   on without success.  I hope they are out there.   
      
   I suspect that there is a timing issue still on your drive.  I don't   
   remember the exact errors I had with the 5MB driver on the larger drive.  I   
   know it's not the controller, as mine had a 5MB drive in it before I   
   switched, and the 5 MB driver worked.   
      
   I never disassembled to driver fully to see where the drive table info is. I   
   did modify a version to ignore hardware write protect so I could use a drive   
   running off a WD-1002-05 controller and a host interface described on the   
   Dutch TRS-80 site.   
      
   --- SoupGate-Win32 v1.05   
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