🚀 go-pugleaf

In article <1993Jan8.055420.10172@nuscc.nus.sg>, scip2060@nusunix1.nus.sg (SARDJONO INSANI) writes:
> [ Article crossposted from comp.sys.ibm.pc.misc ]
> [ Author was SARDJONO INSANI ]
> [ Posted on Fri, 8 Jan 1993 05:49:52 GMT ]
> 
> 
> Hi,
> Is is possible to set the parallel port of PC as input port? Has
> anybody tried this or know of other methods of transferring data
> one byte at a time to the PC?
> 
> Thanks

  Only a few days ago I spend some time reverse-engineering my 
  old Hercules-printer card. I, just like you, wanted to know
  wether it would be possible to read data in via the parallel port.
  For my card, the answer is NO. There are only 8 data_out lines and
  some control signals available. However it is possible to read data
  in your computer via the parallel port: there are a few handshake
  signals that can be used for this purpose (like printer online/offline,
  etc.). If you really want to control your parallel port, you have to
  go all the way down to BIOS level. You need the following info then:
  DOS interrupts + the Centronics definitions + some info of your printer
  card (use voltmeter :-) ).

  Have fun. 
 
       ---< Sonic says: "more haste is more speed" >---