S12 / MagniV Microcontrollers中的主题 Re: Different struct size in S12X and XGATE code

Different struct size in S12X and XGATE code

pittbull — Tue, 23 May 2006 16:41:26 GMT

Hello,
I have a header file that contains a struct declaration. This file is #included in both, S12X and XGATE codes. When I build them, the linker shows a warning message, something like "object 'x' has different size in a.c and b.cxgate". I think it is because XGATE needs struct members at even boundaries whereas S12 can access them from any address. Is there a #pragma to force structs to even boundaries?

Re: Different struct size in S12X and XGATE code

Sten — Tue, 23 May 2006 17:24:29 GMT

The following is an quote from the CW for S12 v. 4.5 help file:

#pragma align  (on|off)

Synonym

None.

Arguments

on: the HCS12X compiler uses the same alignment as the XGATE compiler
off: the HCS12X compiler uses no alignment

Re: Different struct size in S12X and XGATE code

pittbull — Thu, 25 May 2006 01:00:04 GMT

Hello,
Thanks very much. That's what I need :smileyhappy: