Hi Duan, I was thinking that way until I moved on to try another instrument, my Tektronix 7854, only to find that the Prologix can't address it either! The Prologix doesn't hang like it did on the 3478A, but the Tektronix acts as if it isn't on the bus at all.
I know we have some communication going on because if I force SRQ on the tektronix, and issue a ++srq command to the Prologix, the Prologix returns "1" showing the SRQ line is asserted. But if I do a ++spoll 10 the 7854's address) the SRQ line is not reset. As an experiment, I put my 3437A on the bus to act as surrogate pull up resistors; the 3437A works, but the 7854 is still deaf to the Prologix's charms. It comes as no surprise to me, however, that when I drive the 7854 with my HP85B, the 7854 works just fine. [Everything works with the HP85B.,, Over the nearly 20 years that I have used an HP85B, I have never found an instrument that it couldn't make play straight out of the box.] This is beginning to look more and more like I have a bad Prologix adapter. Oh Abdul?? -Chuck Harris Daun Yeagley wrote: > Well, I have a 3478A, but unfortunately not a Prologix. If I get my hands on > one > I could add a data point. > Personally, I think there is a fault in that particular 3478's driver chips. > > Daun _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
