Date: Sun, 27 Oct 2002 19:03:34 -0800 (PST) From: David Nicholas Kayal <davek@saturn5.com> To: gkshenaut@ucdavis.edu Cc: hackers@FreeBSD.ORG Subject: Re: Programming the Parallel Port using ppi. Message-ID: <Pine.BSF.4.44.0210271903180.1234-100000@blackbox.yayproductions.com> In-Reply-To: <200210280155.g9S1tiQ69311@thistle.bogs.org>
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Shouldn't 0xff result in 5v outputs? On Sun, 27 Oct 2002, Greg Shenaut wrote: > In message <Pine.BSF.4.44.0210271631090.1093-100000@blackbox.yayproductions.com>, David Nicholas Kayal cleopede: > > val = 0xff; > > For this kind of testing, it is sometimes useful to use a value > like 0xaa or 0x55, and probe the adjacent lines--don't forget that > if there is inversion going on, 0xff will produce all 0v outputs. > Just a random thought, it may not help here, but aa/ff are generally > more useful than all 1's or all 0's. > > Greg Shenaut > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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