> Hello!
Hello

>
> I have asked the question before but here is
> some fact:
Ok, test this (I assume you're ussing MPLAB & MPASM)

        #include "p16f870.inc"

        ; CP1 CP0 DEBUG - WRT CPD LVP BODEN CP1 CP0 /PWRTE WDTE FOSC1 FOSC0
        ; 1   1   1     1 0   1   0   0     1   1    1     0    x     x
        __config b'11110100111011' & _YOUR_OSC_SETTING

        org 0x0000

        movlw b'11111110'               ;rb6 input, rb0 output
        banksel TRISB
        movwf TRISB

        banksel PORTB
loop    btfss PORTB,6           ;test portb.6 and repeat on portb.0
        bcf PORTB,0
        btfsc PORTB,6
        bsf PORTB,0
        goto loop

        end

And, if it fails, the chip is wrong. But if it works, you have a bug in your
code


Sergi Sanchez
Barcelona Tecnologia S.A.

http://www.piclist.org/techref/member/SSB-BTSA-ES

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