Portb = % ???

[xobx]

Shouldnt this code make all leds on PORTB blink?
Now its only one led thats blink (PORTB.1)

@   device  pic16F648A, hs_osc, wdt_off, mclr_on, lvp_off, protect_off
DEFINE OSC 20


loop:

        high PORTB = %11111111
        pause 250
        low PORTB = %11111111
        pause 250
        goto loop
        end

[sayzer]

TRISB = 0       'Assign all pins as output pins.

loop:

        PORTB = 255     'Set all PortB pins HIGH. Or, PORTB = %11111111.
        PAUSE 250
        PORTB = 0       'Set all PortB pins LOW.  Or, PORTB = %00000000.
        PAUSE 250
        GOTO loop
        
        
'        "HIGH" Command can be used for an individual pin.
'            Ex: HIGH PORTB.0    'This will set PORTB.0 high.
'                LOW  PORTB.0    'This will set PORTB.0 Low.

end

[Melanie]

Sigh....

Only the third time THIS MONTH...

If you read the manual, or downloaded the manual (it's FREE!!!) if you don't have one, or SEARCHED the forum, you will have discovered that HIGH and LOW only work on a PIN and NOT on a PORT which is why you're only blinking ONE pin.

ooops... just noticed that's what sayzer just said... ah well, nothing like reenforcing the message....