Date: Fri, 8 Dec 1995 23:39:22 -0700 From: kelly@fsl.noaa.gov (Sean Kelly) To: freebsd-questions@freebsd.org Cc: stark@cs.sunysb.edu, smp@csn.net Subject: tw driver Message-ID: <9512090639.AA24593@emu.fsl.noaa.gov>
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I'm trying to get the tw driver to work but haven't had any luck. It won't detect the TW523 connected to the parallel port. Here's what's up: - This is on FreeBSD 2.0.5. The parallel port's enabled in the BIOS. Micron P66. - Built a connector for the parallel port according to the directions on http://www.freebsd.org/~faulkner/multimedia/HomeAuto/Tw/tw.html. With one small modification: RJ-11 pin 1 (black) goes to both DB-25's pins 12 and 17. The tw source code says it looks at pin 17, but the web document mentioned above talks about 12 being preferred, while 17 is backwards compatible. - Added device tw0 to kernel config, compiled and installed the kernel. - Rebooted. The probe repeatedly calls wait_for_zero(), which never finds the zero crossing signal. Eventually it gives up. - I've tried both cross over modular cable and straight-through. The docs, such as they are, aren't clear which to use. Neither work. What can I do? -- Sean Kelly NOAA Forecast Systems Laboratory, Boulder Colorado USA If you work on a lobster boat, sneaking up behind people and pinching them is probably a joke that gets old real fast. -- Jack Handey
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