HP-IL floppy disk commands ?



#6

Hello,

anyone have the listing of DDT/DDL HP-IL commands for HP9114 floppy disk ?

I am not able to find them in any available documentation.

I especially need the description od bits in Status byte.

Also, I need to know what commands behave differently from cassette drive. For example, during SEEK command, the tape unit signal Size error, if the Track is more than 1 (tape organisation is 2 tracks, 256 records).

I suppose that because the FD disk is organised as 2x77 tracks, 16 records per track, the SEEK command should also have two bytes (for compatibility), first byte is track number (0..153) and second byte is record number (0..15) right ?

My mass storage now emulates all operations with the tape (writing part of program is almost finished). Now, I need to extend the functionality to floppy disk emulation.

Thx for any informations

PavelK


#7

I collected information about disk drive from HP-71B HP-IL ROM while worked on HP-IL emulation for HP-71X. There are few new DDL & DDT commands compared to the cassete drive:

DDL11: Verify Medium



DDT5: Transfer Buffer

DDT6: Send Implementation

DDT7: Send Max Record (#099F)



Regards.


#8

Thank you very much.

Do you know the more detailed description of Verify medium and Send implementation commands ?

Status byte definition is the same as in cassett drive ?


#9

I really don't know about Verify Medium and I have left it unimplemented because it doesn't have much sense in my implementation of HP-IL, anyway.

Send Implementation is sending the following bytes to the controller:



#00 #00 #00 #4D #00 #00 #00 #02 #00 #00 #00 #10



AFAIK, the status byte hasn't changed.

Regards.


#10

... it doesn't have much sense in my implementation of HP-IL, anyway

... and because it hasn't been used in the HP-71B firmware.


Possibly Related Threads...
Thread Author Replies Views Last Post
  How to move lexfiles from PC to 71 w/o HP-IL? Joe Horn 9 823 10-18-2013, 03:50 PM
Last Post: Christoph Giesselink
  HMS commands Geoff Quickfall 6 570 10-14-2013, 06:27 PM
Last Post: Tim Wessman
  Programming with CAS commands (e.g., arcLen) Helge Gabert 8 633 10-01-2013, 04:08 PM
Last Post: Helge Gabert
  Hand Held Products RS232 to HP-IL aj04062 11 924 08-31-2013, 07:12 PM
Last Post: Paul Berger (Canada)
  [HP-Prime xCAS] Arrays: Programming Commands (solution to the ambiguity) CompSystems 6 621 08-30-2013, 06:32 PM
Last Post: CompSystems
  HP IL over wifi ... (ILPer & go71b) Olivier De Smet 12 1,042 08-20-2013, 05:44 AM
Last Post: Olivier De Smet
  [HP Prime CAS] Solve Commands (Bugs and Request) CompSystems 10 937 08-08-2013, 12:34 PM
Last Post: Gilles Carpentier
  HP 85A. GET and SAVE commands. inaki 6 605 06-05-2013, 06:45 AM
Last Post: Paul Berger (Canada)
  HP 9885M disk drive David Ramsey 0 231 05-12-2013, 09:38 PM
Last Post: David Ramsey
  Alignment disk and procedure for 9114A aj04062 1 275 03-28-2013, 04:54 AM
Last Post: Tony Duell

Forum Jump: