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Question about external interrupt

 
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hadeelqasaimeh



Joined: 05 Jan 2006
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Question about external interrupt
PostPosted: Sun May 24, 2009 6:40 pm     Reply with quote
hi,
Can the external interrupt used to count a sine signal frequency???
Thank you
PCM programmer



Joined: 06 Sep 2003
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PostPosted: Sun May 24, 2009 8:46 pm     Reply with quote
The signal needs to be converted to CMOS logic levels.

See this thread:
http://www.ccsinfo.com/forum/viewtopic.php?t=38521
hadeelqasaimeh



Joined: 05 Jan 2006
Posts: 105

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PostPosted: Sun May 31, 2009 4:00 pm     Reply with quote
thank you
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