Date: Sun, 27 Oct 2002 17:55:44 -0800 From: Greg Shenaut <greg@bogslab.ucdavis.edu> To: hackers@FreeBSD.ORG Subject: Re: Programming the Parallel Port using ppi. Message-ID: <200210280155.g9S1tiQ69311@thistle.bogs.org> In-Reply-To: Your message of "Sun, 27 Oct 2002 16:31:46 PST." <Pine.BSF.4.44.0210271631090.1093-100000@blackbox.yayproductions.com>
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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
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