Re: bidirectional ST printer port

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2 total messages Started by Dan Franklin Wed, 26 Mar 1986 17:33

#276

Author: Dan Franklin
Date: Wed, 26 Mar 1986 17:33

10 lines
1100 bytes

I was hoping that the ST printer port was bidirectional, but I have seen
no documentation for it.  The ST manual shows only one set of data pins
on the printer socket, and the developer's kit only talks about writing
to the printer, not reading from it.  So:

What are the pins on the printer socket for doing input to the ST?
What does the software interface look like?  Is it the obvious thing
(using one of the BIOS input routines with the the printer device)?

	Dan Franklin

Re: bidirectional ST printer port

#312

Author: Tainter
Date: Mon, 31 Mar 1986 15:27

14 lines
1282 bytes

> I was hoping that the ST printer port was bidirectional, but I have seen
> no documentation for it.  The ST manual shows only one set of data pins
> on the printer socket, and the developer's kit only talks about writing
> to the printer, not reading from it.  So:
> 
> What are the pins on the printer socket for doing input to the ST?
> What does the software interface look like?  Is it the obvious thing
> (using one of the BIOS input routines with the the printer device)?
> 
> 	Dan Franklin

The printer port is a bidirectional parallel port.  That means the same pins
used for output are used for input.  The software interface is the BIOS
input routines with device parameters as you suspected.

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