Modular Code

be80be · Jan 30, 2009

In mplab 8.15 you can't use variable definitions like this

Code:

;***** VARIABLE DEFINITIONS
        UDATA_SHR
sGPIO   res 1                   ; shadow copy of GPIO
dc1     res 1                   ; delay loop counters
dc2     res 1
;*********************************************
RESET   CODE    0x0000          ; processor reset vector

you get this errors

Error[149] C:\LEARNPICASS\PIC_MID_A_1\MA_L1-FLASH_LED-50P-INLINE.ASM 48 : Directive only allowed when generating an object file
Error[149] C:\LEARNPICASS\PIC_MID_A_1\MA_L1-FLASH_LED-50P-INLINE.ASM 55 : Directive only allowed when generating an object file

What I want to know is this not the same thing . And that was just a old way of doing it

Code:

;***** VARIABLE DEFINITIONS
      cblock  0x20
		
	sGPIO                    ; shadow copy of GPIO
	dc1                        ; delay loop counters
	dc2     

	endc
;**************************************************
	org    0x0000          ; processor reset vector

Pommie · Jan 30, 2009

You have to decide if you are writing a relocatable file or not. To use the second version of your code just remove the linker file from your project.

<edit> or to use the first version, add a linker script.</edit>

Mike.

be80be · Jan 30, 2009

Ok i get it now. I added the 12f629.lkr to the first code and now it builds fine. I never used a linker file on the second code It also builds fine. I was trying to learn about timers
and interrupts and was reading Gooligum tutorials. I didn't start a 1 didn't read the part about adding a linker. I have all ways did it like the last part. but i like the way he code's
and wanted try it that way

BeeBop · Jan 30, 2009

If you want to learn about relocatable modules, then do these tutorials:

Elmer 160 - Course Lessons

be80be · Jan 30, 2009

Thanks all What i'm asking is the code I put up not the same it sure works the same the only thing is that the second one doesn't use a lkr and the first one does. Or am I wrong.
and the first one works better if you have a lot of code

BeeBop · Jan 30, 2009

be80be said:
Thanks all What i'm asking is the code I put up not the same it sure works the same the only thing is that the second one doesn't use a lkr and the first one does. Or am I wrong.
and the first one works better if you have a lot of code

The difference is that if you use a linker file, you are in charge of where to locate the code within the controller, where if you use the second one, you don't have to worry about it.

Yes, they will do the same thing, so for now, don't worry about using relocatable code. If you want to learn how to do that later, then check the elmer160 site.

Does that answer your question?

be80be · Jan 30, 2009

Yes it did the elmer 160 site is good

Modular Code

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