topic Problem with Linker after changing Memory model to Banked. in CodeWarrior for MCU

Problem with Linker after changing Memory model to Banked.

bhubert — Fri, 16 Jun 2006 00:17:16 GMT

Hello,

I'm currently using CodeWarrior 3.1 for HCS12 with MC9S12C128CFU16. I changed my memory model to Banked instead of Short and now I get the following Error.

ERROR: Different memory models are set in the linker setting....

Anyone know what I would need to do to correct this so I can use the Banked memory model? I don't see any settings that I should need to change in the Linker Properties.

Thanks

Re: Problem with Linker after changing Memory model to Banked.

bhubert — Fri, 16 Jun 2006 01:25:49 GMT

Actually I got that problem sovled now but I get this different Linker Error.

L1907: Fixup overflow in _vect, to gCan_TxIntHandler type 1, at offset 0x30

same error on all 4 CAN Ints...

anyone have any ideas on how to correct this problem?

Thanks

Re: Problem with Linker after changing Memory model to Banked.

CrasyCat — Fri, 16 Jun 2006 17:58:34 GMT

Hello

The message is generated because the function gCan_TxIntHandler, which is an interrupt function is not allocated in non banked memory.

In Banked memory model all interrupt functions should be allocated in a __NEAR_SEG code Section.

Place following pragma prior to your interrupt function implementation:

#ifndef __SMALL__
#pragma CODE_SEG __NEAR_SEG NON_BANKED
#endif

Place following pragma after the function implementation

#ifndef __SMALL__
#pragma CODE_SEG DEFAULT

#endif

I hope this helps.

CrasyCat

Re: Problem with Linker after changing Memory model to Banked.

bhubert — Fri, 16 Jun 2006 19:25:09 GMT

CrasyCat,

I thought that is what that problem is suppose to mean but in the .h file there is this:

#pragma CODE_SEG __NEAR_SEG NON_BANKED /* Interrupt section for this module. Placement will be in NON_BANKED area. */
__interrupt void gCan_TxIntHandler(void);

#pragma CODE_SEG DEFAULT /* Change code section to DEFAULT.

I thought this should take care of all of that. Any suggestions, it just doesn't seem to make sense to me.

Thanks

Re: Problem with Linker after changing Memory model to Banked.

CrasyCat — Thu, 22 Jun 2006 15:38:51 GMT

Hello

In fact you have to specify that pragma in front of both the implementation and prototype of the function.

Can you please try.

CrasyCat