Date: Sun, 25 Mar 2007 16:42:44 +0000 From: "Poul-Henning Kamp" <phk@phk.freebsd.dk> To: "SUNGBAK KIM" <mosworld@lgphilips-lcd.com> Cc: freebsd-current@freebsd.org Subject: Re: NI PCI-GPIB tnt4882 test failed on FreeBSD Current 7.0 Message-ID: <1230.1174840964@critter.freebsd.dk> In-Reply-To: Your message of "Sun, 25 Mar 2007 17:34:48 %2B0900." <OF4A1A2063.572665BC-ON492572A9.00279584-492572A9.002F2200@lgphilips-lcd.com>
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In message <OF4A1A2063.572665BC-ON492572A9.00279584-492572A9.002F2200@lgphilips-lcd.com>, "SUNGBAK KIM" writes: >GPIB control with FreeBSD 7.0 Current because of supporting NI PCI-GPIB >interface card. >4. Basic Code Testing > >I compiled *IDN? Qurey C code as shown below archive but no response from >instrument (AFG3102, etc and linux-gpib returned good results ). > >http://lists.freebsd.org/mailman/htdig/freebsd-hackers/2005-February/010164.html > >and modyfied Code returned dmm = 0 > >/*** PRINT DMM ****/ >dmm = ibdev(0, 11, 0, T1s, 1, 0); >printf(" dmm = %d\n", dmm); >if (dmm < 0) > errx(1, "ibdev = %d\n", dmm); > ibwrt(dmm, "*IDN?\r\n", 7); > >I think dmm should be dmm > 0, if properly configured. right ? zero is a valid handle, so that is OK. Off the top of my head I cannot see what should be wrong, but our GPIB code is not very mature, or for that matter, well tested. I have used it mostly with my various HP equipment and have only ever tried it with one non-HP piece of equipment: my Tex scope. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.
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