Error[113] C:\PROJECTS\PIC\TEST\LESSON4A\LESSON4.ASM 4 : Symbol not previously defi

[ericgibbs]

hi,
As Diver points out you should have an appropriate Header to your program.

There is no need to change the Radix, if you use .5 thats 5 decimal,
0xFF 0FFh and .255 are the same value.

This is an example.

         list      p=16F84A            ; list directive to define processor
	#include <p16F84A.inc>        ; processor specific variable definitions
	errorlevel -302, -207	

	__CONFIG   _CP_OFF & _WDT_OFF & _PWRTE_ON & _XT_OSC

		ORG     0x000             ; processor reset vector
  		goto    main              ; go to beginning of program


		ORG     0x004             ; interrupt vector location
		nop
		retfie                    ; return from interrupt

main:
;your code goes here.
     movlw .5
     clrw
     nop
     end

 

[Ian Rogers]

@Eric and Diver300... We left this thread as the OP had multiple threads going... the debate is here..https://www.electro-tech-online.com...son4-asm-4-symbol-not-previously-defi.127278/


hi Ian,
Thanks for heads up, Posts Merged.
Moderation.
E

 

[jokilike]

Diver300 introducing the 'org 0x00' work fine whilst maintaining the first code. below is the initial code thanks guys for the assist. Final working code is below for reference:


processor 16f84a
include <p16f84a.inc>
__config _HS_OSC & _WDT_OFF & _PWRTE_ON
org 0x00
movlw D'5'
clrw
nop
end