Link Error MC9S12C64

[Greeny]

Hi,

i´m trying to implement an ISR to my project in Codewarrior using the MC9S12C64 µC. But when i try to link then i get an allocation error:

Link Error : L1102: Out of allocation space in segment RAM at address 0x4000

In the map file i found that the Cap1_Data of the ISR is written in to RAM from 3000 to 3FFF.

Its just an empty ISR with no code wirtten yet.

i attached my project here, so hopefully you can help me.

Message Edited by Greeny on 2009-05-12 08:22 AM

[Lundin]

There is no .prm file in the project. I don't think it is possible for CW to work without one.

[stanish · Accepted solution]

Hi Greeny,

It seems you don't use #pragma to place constants correctly.

I'd suggest you to use:

#pragma CONST_SEG ROM_VAR

instead of  

#pragma ROM_VAR WINKEL_ROM

#pragma ROM_VAR TRIGGER_ZAHN_ROM   

#pragma ROM_VAR DEG_ABS_TOOTH_ROM

and 

#pragma CONST_SEG DEFAULT

instead of 

#pragma ROM_VAR DEFAULT

or you can create separate entry in PLACEMENT section of prm file for each constant if you need to have these constants at specific addresses: e.g. 

...

PLACEMENT 

WINKEL  INTO  WINKEL_ROM

...

and then you can use:

#pragma CONST_SEG WINKEL

...

Stanish

[Greeny]

Thanks stanish. i corrected the pragmas and is seems to work.