msp430f249 : in code composer how to suppress "warning: unrecognized #pragma" for #pragma pack(push,1) and #pragma pack(pop)

Hello,

thanks for the reply but i can't compile the code you mentionned : struct __attribute__((__packed__)) packed_struct { char c1; int i; char c2; };
it gives the errors :

line 126: error: expected a ";"
line 126: error: variable "__packed__" was declared with a never-completed type

i use Version: 4.2.3.00004 for CCS

I tried the pragma  DATA_ALIGN (See Section 5.10.5)  that seems to be allowed but can't find the way to write it (to be the same as #pragma pack(push,1) statement)

I put #pragma DATA_ALIGN ("my_section" 1 ); but get an error and don't know how to define "my_section"

I also don't know how to end such a section (equivalent to #pragma pack(pop))

Have you any idea ? thanks

Hi,

referring to the CCSv4.x compiler documentation (compiler v3.x) - http://www.ti.com/lit/ug/slau132e/slau132e.pdf - chapter 5.14.2 "Type Attributes", unfortunatelly the packed attribute on the compiler v3.x can only work with enumeration data type.

Is it possible for you to upgrade to CCS v5.x? I am trying to write a small wiki for this, and will let you know if i have finished it later.

Hi,

i just finished the first draft of the wiki:

http://processors.wiki.ti.com/index.php/MSP430_-_Packing_Structure

however as i said before i think it only works with compiler v4.x which comes with CCS v5.x. 

anyway, looking into the compiler v.3x, i don't think the DATA_ALIGN is the right one for this. From my understanding the DATA_ALIGN pragma from compiler v3.x is used to align the data/variable to the memory boundary or something (CMIIW).

Hello

thanks for reply but i can't install CCS V5 : when lauching the setup.exe i get error :

Enable to access http://software-dl.ti.com/dsps/dsps_public_sw/sdo_ccstudio/CCSv5/CCS5.2.1.00018_win32

do you know the reason ?

Thanks