Build number?

[mattgeerts]

How can I auto-generate a build number at compile time? I want to use this number to report firmware version via uart or display.

Also, how can I have my build automatically name the output file with the build number, or any other macro?

So far I'm using __DATE__ and __TIME__. However, I hate this because the date is not ISO standard! I also don't know how to get this into the file name automagically.

Thanks!

[DavidS]

Hi Matt,

I have a static method to do this but hopefully someone else has dynamic version too.

In the Properties you can do a Define symbol in the Preprocessor as shown below:

In your "C" file do the following for declaration:

static const unsigned int BUILD_NUMBER = __BUILD_NUMBER;

//DES added as a Pre-Processor Define constant

Then in code you can printf it.

PRINTF("\r\nBUILD_NUMBER = 0x%X", BUILD_NUMBER);

//DES added

I used the hello_world_frdmk64f as my test project in KSDK_1.2..

My terminal output looked like:

Hello World!

BUILD_NUMBER = 0x12345670

Regards,

David

[mattgeerts]

Thanks David,

The goal is really to do this in a way that doesn't require manually updating the number.

For years in Metroworks Codewarrior I would just keep a version.c in my project that contained either strings or chars to define the current project release, but i've never tracked per-build.

Can we have KDS run a batch file on compile or something? Then I could just have a batch file read a C file with a number in it, then delete the number and incriment a new number in its place. Dirty, but it would work.

[Carlos_Musich]

Hi Matt,

You can use the Build Steps properties tab to customize the selected build configuration, in this case you can call a batch file immediately after building.

Go to menu Project > Properties > C/C++ Build > Settings > Build Steps.

Hope it helps.

Regards,

Carlos