From: "pwillard" Newsgroups: comp.os.msdos.djgpp References: <3T6l4.3418$i43 DOT 21114 AT typhoon DOT southeast DOT rr DOT com> Subject: Re: I need to advice on timing... Lines: 34 X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 5.00.2014.211 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2014.211 Message-ID: <8atl4.7165$px.38598@typhoon.southeast.rr.com> Date: Tue, 01 Feb 2000 04:20:20 GMT NNTP-Posting-Host: 24.31.125.207 X-Complaints-To: abuse AT mediaone DOT net X-Trace: typhoon.southeast.rr.com 949378820 24.31.125.207 (Mon, 31 Jan 2000 23:20:20 EST) NNTP-Posting-Date: Mon, 31 Jan 2000 23:20:20 EST Organization: MediaOne - Atlanta To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Reply-To: djgpp AT delorie DOT com You know... Thats why I was unsure... The linux method is a new twist and I hadn't thought of that, thanks Shawn. I'd have used the ready-made routines from Allegro if they weren't limited to milliseconds. I presumed the limitation was there for a very good reason. Heck, everything I read up till I asked the question talked about millisecond resolution timing... which was why I asked if it was even possible in the first place. As usual, I'm always trying to do something non-trivial... :-) Pete pwillard wrote in message news:3T6l4.3418$i43 DOT 21114 AT typhoon DOT southeast DOT rr DOT com... > I'm wondering if this is possible or not. > > I need to touch external hardware through the parallel port and so far, > doing that hasn't been a problem. Now, I need to control the timing of > signals sent to the external hardware. I can sucessfully create a 50 > millisecond pulse using the 8259 clock stuff, but I have no clue how to > generate a shorter than 1 millisecond signal. I now need a 10, and a 50 > MICROSECOND signal and I'm not sure if I can.... IS it possible? > > > For the curious... I need to toggle a single data bit on the parralel port > with an on time of 50milliseconds. > >