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[Help] Fix GOTO address value?

 
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Delfy_Coltech



Joined: 25 Nov 2009
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[Help] Fix GOTO address value?
PostPosted: Sat Mar 26, 2011 6:11 am     Reply with quote

Hi all,
I am newbie in using CCS C Compiler.
I see that, the first value in HEX file when I compile by CCS is the GOTO value (Ex: 040500). It mean that when running, Program will move into 0x500 address. (Start address of main program)
If I change the code in my main application. The GOTO address will be changed too. Shocked

So, how can I fix the GOTO address with no-change value when adding code to main.????(ex: 0x500)

Thanks,
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Mechatronics Department, Coltech, VNUH
Hanoi, Vietnam.
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FvM



Joined: 27 Aug 2008
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Location: Germany

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PostPosted: Sat Mar 26, 2011 12:03 pm     Reply with quote

The initial goto can be set with a #build reset= statement in CCS C. Consult the compiler manual for details.
It would be easier to help, if you tell, what you want to achieve.
Delfy_Coltech



Joined: 25 Nov 2009
Posts: 27
Location: Vietnam

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PostPosted: Sat Mar 26, 2011 11:17 pm     Reply with quote

Thanks for your suggestion, Mr FvM.
I am going to try this way now. And report later.

My problem is that. Find the CCS command to fix GOTO address value when changing my code.
It means that: I want my GOTO address value is always 0x500.
Can U share anything?
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Mechatronics Department, Coltech, VNUH
Hanoi, Vietnam.
-------------------------------------------------
PCM programmer



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PostPosted: Sun Mar 27, 2011 12:35 am     Reply with quote

Use the #org directive to set the start and end address of the main() function.
See the CCS manual.
http://www.ccsinfo.com/downloads/ccs_c_manual.pdf
Delfy_Coltech



Joined: 25 Nov 2009
Posts: 27
Location: Vietnam

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PostPosted: Sun Mar 27, 2011 8:13 pm     Reply with quote

Quote:
Use the #org directive to set the start and end address of the main() function.
See the CCS manual.
http://www.ccsinfo.com/downloads/ccs_c_manual.pdf


Thank you very much!
I have fixed my error by using a simple #ORG command before main function.

Code:

#ORG    0x500, 0x1000
void main
{
   ...
}


An important thing is that we have to check the mount of main function in order to choose right value address in #ORG command.
_________________
-------------------------------------------------
Mechatronics Department, Coltech, VNUH
Hanoi, Vietnam.
-------------------------------------------------
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