Subject:
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Re: light sensor problem?
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Sun, 23 Jul 2000 19:31:02 GMT
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Viewed:
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1700 times
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On Sun, 23 Jul 2000, Luis Villa wrote:
> I've tried to cut this code out and see what happens, but apparently
> something else got screwed up last night that is affecting this. When that
> is fixed, I'll try deleting the code and seeing what happens (particularly
> if anyone who knows better thinks it will help.)
Having fixed the other screwup, I can report that snipping the code I
discussed earlier allows everything to build just fine. It doesn't,
however, solve the issue with the light sensors.
I also tried swapping the two lines I mentioned earlier:
mov.b r6l,@_ds_channel ; store next channel
bclr r6l,@_PORT6:8 ; set output inactive for reading
That didn't help either, at least not a whole lot. So... maybe the problem
isn't in ds_handler(), but I can't figure out where else it could be.
Anyone? Or does everyone else just not care that the scaling is screwed
up?
Anyway, thanks again ahead of time...
Luis
-----------------------------------------------------------------------
"Summertime... and the living is easy...
fish are jumping and the cotton is high...
So hush, little baby, baby don't you cry."
-Ella
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Message has 2 Replies:
 | | Re: light sensor problem?
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| (...) I'm the one that fixed active sensor reading... :-) Settle time is one of mine... Kekoa msg about this problem (a very old one in this ng if I remember) helped me to solve things. (...) I patched the reading routine in ds_handler to fix a vary (...) (24 years ago, 24-Jul-00, to lugnet.robotics.rcx.legos)
| | | Re: light sensor problem?
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| (...) I looked through the dsensor stuff, and it looks quite bad to me... We execute a delay loop inside an interrupt handler. We issue the command to start the next read from that same handler. This will read the sensors very quickly, for the cost (...) (24 years ago, 24-Jul-00, to lugnet.robotics.rcx.legos)
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Message is in Reply To:
| | Re: light sensor problem?
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| (...) It has changed from 0.1.x- Markus (who seems to have just about disappeared off the face of the planet) re-wrote a lot of that. On the other hand, in the actual ds_handler function not much has changed: the only thing that is apparent is that (...) (24 years ago, 23-Jul-00, to lugnet.robotics.rcx.legos)
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