attribute ((pack)) for F28335 with CCS

Isidore Ryu

Hi everyone,

I want to use #pragam pack() for byte align to structure. As I know and someone posted to forum gcc compiler can support this, __attribute__ ((pack))

For example,

typedef struct
{
int itemp;
long ltemp;;
float ftemp;
}__attribute__ ((pack)) sttemp;

But the compiler displays error message. Could you tell me whether CCS can support 'PACK' and how to use it in detail?

Regards.

Isidore Ryu

over 15 years ago

0 AartiG over 15 years ago

TI__Guru**** 173310 points

This is currently supported by the TI ARM compiler for Cortex M3 devices, but support for other devices is still being worked on.

Please take a look at this post as well: http://e2e.ti.com/support/development_tools/compiler/f/343/p/38211/196004.aspx#196004

0 Paul Knueven over 15 years ago in reply to AartiG

TI__Expert 4280 points

This will not help you for C2000 devices, but I want to point out to ARM users that as Aarti says the packed attribute is available for Cortex M3 in v4.6.x, AND it is available for ALL Cortex devices (when --unaligned_access=on, (the default for Cortex)) in v4.7.x.

0 Michal Koziel over 13 years ago in reply to Paul Knueven

Prodigy 100 points

Is the packed attribute now supported for F2809 by latest CCS/Compiler?

0 AartiG over 13 years ago in reply to Michal Koziel

TI__Guru**** 173310 points

No, it is still not supported for the F28xx processor family.

Code Composer Studio™︎

Code Composer Studio forum

attribute ((pack)) for F28335 with CCS

Code Composer Studio™︎

Code Composer Studio forum

__attribute__ ((pack)) for F28335 with CCS

attribute ((pack)) for F28335 with CCS