Marc:

I am not sure how did you write your code it looks to me
that you first used c then generated assembly code then
you did some filtering then you post it to pic list. reason for
this is c always generates extra junk code . I do not thing
assembly user will write   movwf    06. any way  if you just need
to turn all portb on simple test is this


        movlw    0xFF
        movwf    portb

or your way will be

    movlw    0xFF
    movwf    0x06


Andre

Marc D. Spencer wrote:

> What am I doing wrong? this should be the simplest start...turn all port b
> pins on.
>
> Code:
>
> 0000    MOVLW   00
>         MOVWF   0A
>         GOTO    005
>         NOP
>         NOP
> 0005    CLRF    04
>         CLRF    03
>         MOVLW   07
>         MOVWF   1F
> 0009    BSF     03,5
>         CLRF    06
>         MOVLW   FF
>         BCF     03,5
>         MOVWF   06
>         GOTO    009
>
> Using a 16C622, wired trivially:
>
> pin 4 1K to Vcc, .1uF to Gnd
> pin 5 gnd
> pin 14 to TTL clock module, 10MHz
> pin 12 to +5
>
> looking at pins 6-13...all have about .25 v on them, but won't sink an LED
> (with 1K res).
>
> Help?
>
> (I don't have a scope, but im pretty sure the power is clean - 7805 with
> appropriate filtering off a wall wart)