07-23-2013, 03:28 PM
Ever heard something about "auto-extended addressing" in connection with the HP-IL interface? Ever seen AES, AEP and SAD frames on the bus? Ever had more than 30 instruments in the loop?
ILPer v1.43 available at http://hp.giesselink.com/hpil.htm supports this addressing mode with both internal devices now.
The only HP-IL controller which supports this mode I know, is the IL module of the HP-71B. Unfortunately the HP-IL module simulation of Emu71/Win don't support this operating mode also, so you need a real HP-71B and a PIL-Box for playing.
Enter "SFLAG(-22) @ RESTORE IO @ PRINTER IS PRINTER" on the 71B and see what's happen in the Scope Window of ILPer. :)