Sony IR Remote

[dirtbiker5627]

I dont think the timing is off becuase I used a portion of the first code to make shure the range of numbers was correct.

start:
if (pulse < 220) or (pulse > 260) then start
high GPIO.2
pause 100
low GPIO.2
goto start

I think this was the code but I used 220 through 260 and the led would flash every time it detected the ACG pulse. So I dont think the values are incorrect. I just dont know how to excecute the program.
I would really like to use this code below because I understand it, it's simple and I can do it all in software. If anyone can please tell me what is wrong with this code please let me know.

pulse  var Word
x      var byte
signal var word

ANSEL = %00000000

Start:
    Pulsin PORTC.3, 0, pulse
    if (pulse < 220) or (pulse > 260) then start
    
signal = 0
x = 1

Loop:
    pulsin PORTC.3, 0, pulse
    if (pulse > 90) then ADD_X
    
    READ_IR:
    x = x * 2
    if (x = 255) then start
    
    serout PORTC.2, 2, [#signal]
    
    goto loop
    
ADD_X:
    signal = signal + x
    goto read_ir
    
end

[Bruce]

One Sony decoder chip comin up..

This should be easy to understand & modify for your PIC type. And you can easily change it to display buttons like channel-up, down, volume-up, down, etc..

DEFINE OSC 4
IR_PULSE VAR BYTE(12) ' IR data received
INDEX VAR BYTE        ' Index pointer
DBYTE VAR BYTE        ' IR data received
 
Main:
   PULSIN PORTC.3,0,IR_PULSE         '// Read-in start pulse
   IF (IR_PULSE < 200) OR (IR_PULSE = 0) THEN Main
 
Verify:                              '// Read, Decode, then verify data
   FOR Index = 0 TO 11               '// Setup to read-in 12 pulses
    PULSIN PORTC.3,0,IR_PULSE[Index] '// Read 12 low-going pulses on RC.3
   NEXT Index                        '// Loop x times
 
   DBYTE = $7F                       '// Start with all 1's and find each 0
 
   FOR Index = 0 TO 6                '// Get 7 "data" bits
    IF IR_PULSE[Index] < 100 THEN DBYTE.0[Index]=0 '// Less than 1mS = 0
   NEXT Index
 
   DBYTE = DBYTE + 1                 '// Button code #1 = 0, Button #2 = 1, so add 1
                                     '// for actual button pressed for display
 
   HSEROUT ["Button pressed was ",#DBYTE,13,10]
   GOTO Main
 
   END

This will print buttons #1 through #9. Buttons 0, channel, volume, etc will output the numeric values corresponding to buttons pressed.

I know you don't care about the device codes like TV, VCR, etc, but it's easier to keep in-synch if you read these in anyway.

[fratello]

Wow, Mr.Bruce, amazing job !!! I wonder if it's possible to create code (like this) for using with RC-10 infrared remote from Blaupunkt. I read something about remote with buttons here : http://dren.dk/lacetti-blaupunkt.html, but it' s more interesting to build one infrared remote. In the car that will make the difference ... I read all topics on this forum about IR, and Yours web pages too, but my level of knowledges it's (verry) low...so, if it's possible, every help it's wellcome.