IR Counter

[partime]

Thank you picster and Roger for the information you presented.

I finally captured the signal from my remote as dhouston suggested. I couldn't get Loop Recorder to capture the signal, but I did get it with a different program (http://www.passmark.com/products/soundcheck.htm). I attached a copy of the signal I captured. It is from a Hitachi CLU-5722TSI remote's channel up button. The bottom one is the full signal. The top ones are of the signal divided into two segments.

The signal seems to follow this protocol that I found for Hitachi.

Code length:            32 bits
Carrier:                39.2kHz

The code is only transmitted once, and after that a stop code is transmitted.



	     +--------------------------------+                   
Header:      |                                |                  
	     +                                +----------------+..
			    16T                       8T
			   8.8ms                     4.4ms

	     +--+      
1 is coded:  |  |      
	   ..+  +------+..
	      T   3T

	     +--+  
0 is coded:  |  |  
	   ..+  +--+..
	      T  T 
			 +--+
			 |  |
After the last bit a ( ..+  +  ) is transmitted to terminate the last bit.
			  T

	      +--------------------------------+        +--+
Stop code:    |                                |        |  |
	      +                                +--------+  +
			      16T                  4T     T
			     8.8ms                2.2ms

T = 550us

What should the next step be? Should I try to write some code using PULSIN to read the incoming IR signal?