Code Composer Studio chip define variable?

Neal OHara

Other Parts Discussed in Thread: TMS320F28335, TMS320F28377D

Is there an easy way to use #ifdef to detect which chip is being used in a particular build?

We have some header files that are being updated to use in projects for both TMS320F28335 and 28377D chipsets.

Having some conflicts with device specific registers, and are trying to determine if separate header files in different repos, or a single header file with #ifdef is the right solution.

I went looking for the build variables trying to figure out the chip define myself, but I think I might be missing the obvious answer.

Thanks for any advice,

Neal

over 3 years ago

0 Siddharth Deshpande over 3 years ago

TI__Mastermind 36725 points

Hi,

Maintaining them in two separate files would be a good solution. You can have two different build configurations of the CCS projects - one for each device with the predefined symbol for the device as a compile option.

Best Regards

Siddharth

+1 Kier over 3 years ago

Mastermind 9520 points

The chip name is available via string variable DEVICE (e.g. TMS320F28377D). You can make that available as #define in predefined symbols as follows:

__CHIP__=\"${DEVICE}\"

Example usage:

const char target_chip[] = __CHIP__;

However I'm not sure how you can use it as you describe with #ifdef to do one thing and not the other in code since the pre-processor won't compare strings.

0 Kier over 3 years ago in reply to Kier

Mastermind 9520 points

One extra thought. You could use ${DEVICE} in Pre-Build Steps as an argument to a batch file to take different actions before compile and link.

0 Neal OHara over 3 years ago in reply to Kier

Prodigy 90 points

Thank you for all the advice folks.
It seems like we are doing two separate files for now. but the $(DEVICE) option looks like what I was looking for as the alternative.

0 Siddharth Deshpande over 3 years ago in reply to Neal OHara

TI__Mastermind 36725 points

I will go ahead and close this thread.

Best Regards

Siddharth

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Code Composer Studio chip define variable?