I think lots of people have designed MCU based HPIB interfaces - the problem is that most of them are, like mine, designed to solve a specific problem and there is no subsequent incentive to clean up the documentation to the point where you wouldn't be embarrased to release it to the public - at least that's the state mine is in... On Jan 14, 2012 8:35 AM, "Jim Lux" <[email protected]> wrote:
> On 1/13/12 3:46 PM, Chris Albertson wrote: > >> On Fri, Jan 13, 2012 at 3:18 PM, Jim Lux<[email protected]> wrote: >> >>> On 1/13/12 2:51 PM, Chris Albertson wrote: >>> >>>> >>>> $150 is $130 more than $20. It depends on if an ISA type computer >>>> shows up for free. I'm having doubts that one will. They seem to >>>> have become valuable. The machine would need to be at least a Pentium >>>> II so it could boot off the network and then mount some disk space. I >>>> know what you mean about maintenance so i don't want any disk inside >>>> and no OS installed. >>>> >>>> I'm surprised that no one has built a GPIB controller from a uP. >>>> Electrically the GPIB is simple and slow by modern standards. >>>> >>>> >>> That's exactly what the Prologix is... a microcontroller that implements >>> IEEE-488/GPIB with a command interface (serial port emulation with USB) >>> >>> Maybe what you mean is "why has nobody published a design and software >>> for >>> free?" >>> >> >> I've been Googling,.... >> >> Yes there is a free published. It appears to be the very much like >> the Prologix. The Prologix was the next iteration of this design. >> http://lpvo.fe.uni-lj.si/en/**raziskave/elektronika/** >> podatkovni-in-merilni-**vmesniki/<http://lpvo.fe.uni-lj.si/en/raziskave/elektronika/podatkovni-in-merilni-vmesniki/> >> >> >> > Fascinating.. so basically, by spending $150 you save whatever time you'd > spend buying the $50 worth of parts (which might be more by now) and > assembling it. Seems a nice way to cover both ends of the user spectrum. > > ______________________________**_________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
