Pulse output / input...
Is it possible to have one cog sending out a pulse stream, say on pin 5, and have another cog reading pin 5 to count the pulses ? (knowing that the external circuitry would have to be compatable with this).
My reason for wanting this is as a self test mechanism for pulse input counting.
Any advice, sample code would be appreciated.
Thanks,
Chris
West Oz.
My reason for wanting this is as a self test mechanism for pulse input counting.
Any advice, sample code would be appreciated.
Thanks,
Chris
West Oz.
Comments
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1+1=10
You must have answered that within 10 seconds of me posting it, appreciated.
Cheers,
Chris
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Jon Williams
Applications Engineer, Parallax
I'll get·a prop up and running (maybe today even), then I may ask you a bit more about the reply you just gave, thanks for that.
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Jon Williams
Applications Engineer, Parallax
Today I am starting the journey... "blinkled.spin"... I hope in a few hours.
I will be keeping these 2 chips and my first breadboard for keepsakes, who knows where all this is going. The prop is perfect for·our appication·with multiple pulse counting and simultaneous display ability.
Its kind of nice to be in on the ground floor·alongside all the people in this forum, I just wish I had something to offer to the forum, maybe in a year or two I'll get my chance to help a newbie in some way.
Cheers, Chris
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Jon Williams
Applications Engineer, Parallax
I'm just trying to get the serial programming tool going at present, having a few issues, just double checking everything. Isnt there a thread somewhere here on the serial tool ?, I'm starting to look now...
http://forums.parallax.com/attachment.php?attachmentid=40594
Note that the labels correspond to the PC side of things, so RX on the schematic connects to the TX pin (A30)·of the Propeller.
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Jon Williams
Applications Engineer, Parallax
You have requested something that does not exist, or you do not have permission to access.
Would love to see his latest schematic.
Cheers, Chris
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Jon Williams
Applications Engineer, Parallax
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Beau Schwabe
IC Layout Engineer
Parallax, Inc.
Thanks for that.
I got it going yesterday, but it seems intermittently unstable, I am going to try the new diagram you just gave me,·but I also think I may have an old breadboard problem, I have a brand new one and I'll try that.
Will let you know how it goes in a few days.
Right now - taking my old muscle car for its annual·car club license·inspection, you gotta have a variety of toys...
Cheers, Chris.
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Jon Williams
Applications Engineer, Parallax
Will use some veroboard and knock something up.
I guess the lower voltage 3.3v stuf is more sensitive as well to poor contacts / lengthy wires etc.
Will let you know how it goes.
Cheers,
Chris
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1+1=10
I was also just thinking about breadboards and micro's, the long metal plates they use would be terrible for a micro, maybe OK for surrounding circuitry, but an oversize breadboard is probably the worst thing I could do.
All of you guys feedback is appreciated.
Cheers,
Chris
thanks guys.