blinking basic

[mister_e]

Try this

        @   DEVICE      INTRC_OSC_NOCLKOUT, WDT_OFF,PWRT_ON,MCLR_OFF
        @   DEVICE      PROTECT_OFF, CPD_OFF,BOD_OFF
        @   DEVICE      IESO_OFF, FCMEN_OFF,LVP_OFF
        @   DEVICE2     BOR21V, WRT_OFF
      
        DEFINE OSC 4
        OSCCON = %01100001
        PORTD = 0
        TRISD = 0
loop:   
        PORTD.0 = 1 ' Turn on LED connected to PORTD.0
        Pause 500 ' Delay for .5 seconds
        
        PORTD.0 = 0 ' Turn off LED connected to PORTD.0
        Pause 500 ' Delay for .5 seconds
        
        Goto loop ' Go back to loop and blink LED forever
        End

Also, have a look at this link.
http://www.picbasic.co.uk/forum/showthread.php?t=543

HTH