Subject:
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Re: interfacing V2X compass
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 25 Aug 1998 21:40:53 GMT
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Original-From:
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John Duff <jnduff@ra(AvoidSpam).cland.net>
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Reply-To:
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jnduff@cland^IHateSpam^.net
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Viewed:
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3698 times
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Rick,
I had the same problem. Also the compass would occassionally lock up and
require a reset. I tied the reset pin to a digital out and added a routine
to take all the necessary pins high and then cycle the reset pin. I reset on
initialization and could call the routine later it the compass locks. I
have an assembler program that incorporates this. I use the V2X in slave
mode. I'd be happy to send it to you if it would help
John
Rick Moll wrote:
> HB Folks,
>
> I'm currently using the HB to interface to a Vector 2X compass. I'm
> using the compass in RAW slave mode, so it's different than the hardware
> interface that's documented on the HB web site. But I did notice that
> the documented interface just left the ~RESET pin float high, so I
> assumed that the compass could be trusted to power up reliably as long
> as the interfaced pins are connected to i/o lines that boot up in a
> high-impedance (as should all of the SPI lines on the 6811). The V2X
> documentation says that should work, and the interface documented on the
> HB web site implied that it at least worked for someone.
>
> The problem I'm having is that most of the time this works fine; but
> occasionally the V2X gets into some state where it will not power up and
> work properly until I momentarily lower the ~RESET line (with a wire
> jumper).
>
> Have other folks got the V2X to work reliably for them with the ~RESET
> pin left unconnected???
>
> Thanks,
>
> Rick
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Message has 1 Reply:
 | | Re: interfacing V2X compass
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| (...) I ended up doing the same thing. I appreciate hearing that someone else had thesame problem, and used the same solution. It sure is frustrating that you can't trust the documentation that came with the compass; if you need to reset the thing (...) (28 years ago, 25-Aug-98, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | interfacing V2X compass
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| HB Folks, I'm currently using the HB to interface to a Vector 2X compass. I'm using the compass in RAW slave mode, so it's different than the hardware interface that's documented on the HB web site. But I did notice that the documented interface (...) (28 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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