From: larry_fosdick@hotmail.com   
      
   "Mark McDougall"  wrote in message   
   news:44b19846$0$21713$5a62ac22@per-qv1-newsreader-01.iinet.net.au...   
   > Larry wrote:   
   >   
   >> Later, they went to a WD1010-based controller. The WD1002-05 or   
   >> WD1002-HDO (the second has no floppy interface) was a general purpose HD   
   >> interface for MFM drives. I think that for TRS-80's, it was a   
   >> hobby project to make it work.   
   >   
   > Thanks for the detailed info!   
   >   
   > Looks like the WD1010 is the way to go.   
   >   
   > The reason I ask is that I've been looking for quite some time now for   
   > some hardware to design for the hobbyist market, and I noticed someone   
   > lamenting that no-one has developed a compact flash adapter for the TRS-80   
   > yet. So, not knowing anything about TRS-80 hard drives, I thought I'd look   
   > into the feasibility of doing it for a reasonable cost.   
   >   
   > I've already implemented a working model I/III in an FPGA, together with a   
   > crude WD1793/floppy emulation. I've also got access to an FPGA platform   
   > that already has compact flash on it, so my plan is to first emulate the   
   > WD1010 in the FPGA and then get NEWDOS or LDOS reading from a compact   
   > flash-based hard disk. From there it would be a simple matter of designing   
   > the most cost-effective hardware to allow the design to be plugged into a   
   > real TRS-80.   
   >   
   > Thanks again for the info!   
   > Regards,   
   >   
   > --   
   > |              Mark McDougall                | "Electrical Engineers do it   
   > |     |   with less resistance!"   
      
   Keep us posted!  I'd love to get one of those.  Do you know how big the   
   Tandy drive cases are???   
      
   Larry   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)