From: "D. Brownlee" <ancipites@earthlink.net>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] problems
Date: Tue, 1 Aug 2000 15:48:01 -0700 [thread overview]
Message-ID: <3987539D.8FC9FF37@earthlink.net> (raw)
In-Reply-To: <200008012126.RAA30253@smtp4.fas.harvard.edu>
Reading from the "IBM PS/2 Hardware Technical Reference,"
"Parallel Port Controller (Type 1)," not necessarily an
up to date or applicable document, it says, concerning the Status Port:
Bit 5 This bit represents the current state of the printer
'paper end' signal (PE). When this bit is set to 1, the printer has
detected the end of the paper.
in contast, another bit is described:
Bit 3 This bit represents the current state of the printer '-error'
signal (-ERROR). When this bit is set to 0, the printer has
encountered an error condition.
Hope that helps,
D. Brownlee
Russ Cox wrote:
>
> The right change is probably to sleep
> waiting for a status change interrupt
> as it does a little bit later; what I wondered
> about was the sense of Fpe and whether
> it actually had something to do with paper.
>
> Russ
next prev parent reply other threads:[~2000-08-01 22:48 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-08-01 21:26 Russ Cox
2000-08-01 22:48 ` D. Brownlee [this message]
-- strict thread matches above, loose matches on Subject: below --
2000-08-01 19:09 Russ Cox
2000-08-01 20:42 ` D. Brownlee
2000-08-01 21:04 ` D. Brownlee
2000-07-30 15:20 [9fans] drawterm etc Russ Cox
2000-07-31 9:09 ` [9fans] problems D. Brownlee
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