Subject:
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Re: Max poke rate?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 12 Mar 1996 13:12:17 GMT
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Original-From:
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Tom Cicatelli <cica@tiac.net&avoidspam&>
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Viewed:
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2072 times
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Franklin Ranier Roller wrote:
>
> Hi,
> I've been trying to write to PD2 using the following:
>
> int write_port(int port, int value, int mask)
> {
> poke(port,(value & mask)|(peek(port) & ~mask));
> }
>
> It works fine except that the fastest cycle that I can get out of
> PD2 is about 242 Hz. I need 1.6 kHz. In between PD2_on and PD2_off
> I put a msleep(1L) or a sleep(0.001) and the sleep function is faster,
> but still not a 1 mS or 1kHz. I've even tried sleep(0.0006) with same
> result. Any recommendations? Do I have to hog the processor or what.
>
> Frank
One option might be to try Kurt Konolige's IC compiler. I believe it
only runs on a Unix machine, but you are able to compile programs for
greater speed.
Check out
http://www.ai.sri.com/people/erratic/icn.html
Tom
--
____________________________________________________________________
Tom Cicatelli cica@tiac.net
Melrose, Massachusetts
____________________________________________________________________
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Message is in Reply To:
 | | Max poke rate?
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| Hi, I've been trying to write to PD2 using the following: int write_port(int port, int value, int mask) { poke(port,(value & mask)|(peek(port) & ~mask)); } It works fine except that the fastest cycle that I can get out of PD2 is about 242 Hz. I need (...) (29 years ago, 11-Mar-96, to lugnet.robotics.handyboard)
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