ir decode using pulsin help needed!!!

[engineer7]

here is my code:

'****************************************************************
'*  Name    : UNTITLED.BAS                                      *
'*  Author  : [select VIEW...EDITOR OPTIONS]                    *
'*  Notice  : Copyright (c) 2011 [select VIEW...EDITOR OPTIONS] *
'*          : All Rights Reserved                               *
'*  Date    : 5/23/2011                                         *
'*  Version : 1.0                                               *
'*  Notes   :                                                   *
'*          :                                                   *
'****************************************************************
Define OSC 20 
Header var word
Body var word
i var byte
tmp var Byte
irButton var byte
irDevice var byte 
irIN var PortA.2 
SonyLED var PortB.2 

TrisA = %00000100 
TrisB = 0 
Start:
LOW SONYLED 
IRBUTTON=255: IRDEVICE=255

Pulsin irin,0,header 
if header > 1000 or header < 1350 then goto Start
 
for i =0 to 11
pulsin irin,0,tmp 
if tmp >= 480 then
Body.0[i]=1 'Sony Logic 1 is 120
else
Body.0[i]=0 ' Sony Logic 0 is 60
endif
next
IRBUTTON = Body & %01111111 'Mask 7 bit 
IRDEVICE = (Body >>7) & %00011111 'Mask 5 bit 
If IRDEVICE=255 then goto start
 
if IRBUTTON >=0 and IRBUTTON < 255 then
high Sonyled
pause 300
low Sonyled
endif
pause 100
goto start

i am using pic16f877a n i am definitely using picbasic pro now.
but the pin portb.2 never gets high on pushing any button of my sony remote.can anyone plz plz help me out with this.i really need to make it work plz!

[Pimentel]

Engineer7,

You need to use a Sony control!
I use Sony IR protocol with sucess, and my rotine decode all key, then you only need to test the value and to do something...

@ DEVICE pic16F628a, INTRC_OSC_NOCLKOUT ' System Clock Options 
@ DEVICE pic16F628a, WDT_OFF  ' Watchdog Timer
@ DEVICE pic16F628a, PWRT_OFF  ' Power-On Timer
@ DEVICE pic16F628a, BOD_OFF  ' Brown-Out Detect
@ DEVICE pic16F628a, MCLR_ON  ' Master Clear Options (External)
@ DEVICE pic16F628a, LVP_OFF  ' Low-Voltage Programming
@ DEVICE pic16F628a, CPD_OFF  ' Data Memory Code Protect
@ DEVICE pic16F628a, PROTECT_OFF ' Program Code Protection
DEFINE OSC 4
'Definição das variáveis e declarações
INCLUDE "bs1defs.bas"   'inclui arquivo p/ compatibilizar com BS1
'p/entender as variáveis b0...b3, w0...w6 e bit0...bit13
CMCON = 7               'DEFINE PORTA COMO DIGITAL (COMPARADORES ANALÓGICOS:OFF)
symbol ir = PORTB.7 'entrada do sinal de IR
SYMBOL  LED = PORTB.4
SYMBOL  RELE = PORTB.0
TRISB = %10000000       
'------------------------------------------------------------------
'rotina principal
LOOP:
 pulsin ir,0,w0       'aguarda start bit
 if w0 < 200 then LOOP  'start bit é > 200
 pause 20           'pula primeiro envio
 pulsin ir,0,b0       'aguarda 2º start bit
 pulsin ir,0,b1
 pulsin ir,0,b2       'lê cada bit do código IR.
 pulsin ir,0,b3   
 pulsin ir,0,b4   
 pulsin ir,0,b5
 pulsin ir,0,b6
 pulsin ir,0,b7
 
 bit0=b1/96   'extrai LSB
 bit1=b2/96   
 bit2=b3/96   
 bit3=b4/96
 bit4=b5/96
 bit5=b6/96
 bit6=b7/96   'extrai MSB
 bit7=0
 
 if b0=21 then COMANDO
    GOTO LOOP
    
 COMANDO:
    B0 = 0
    RELE = 1 
    LED = 1
    PAUSE 500
    RELE = 0
    LED = 0
 GOTO LOOP   
 
'----------------------------------------------------------------
   end

[mackrackit]

I can not help much on th decoding but there is a problem with your setup. PORT.A is analog so you will need to turn the ADC off.
http://www.picbasic.co.uk/forum/showthread.php?t=561

[engineer7]

sir i have gone through the link which you have given. but i cant seem to find the command for which to turn the ADC off. plz help in this regard.im using picbasic pro.
n secondly
if i take my sensor output to some other port lets portb.2 then i m guessing that there wont be any problem of ADC etc.?????

[Ioannis]

If I remeber right, your PIC has comparators and ADC. So, read for me the DS and find the appropriate registers to setup.

Alternatively use the include file from Darrel and get over with.

http://www.picbasic.co.uk/forum/show...ht=all_digital

Ioannis

[engineer7]

ok thanks a lot