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Unread 21-02-2006, 11:02
gnirts gnirts is offline
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AKA: Robinson Levin
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Question GTS Counting

I have installed the GTS sensors on both sides of the robot. The documentation indicates that the pulse from the sensor is a 39 microsecond wide rising pulse for a clockwise rotation and an 83 microsecond wide pulse for a counter-clockwise rotation. How would one differentiate between the widths of the pulses in the interrupt handler?

I have a feeling that I need to set the interrupt to fire and high and low transitions, and use a timer to monitor the length of the pulse. However I have no idea how to set that up on the PIC. Is there any documentation or example code I should be aware of? Can a timer even measure in microseconds?

Thanks in advance,
Robinson
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Last edited by gnirts : 21-02-2006 at 11:20.
 


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