Why do I get this error messasge which is "function declared implicitly"?

jinyoung noh

Hello

I just started learning cortex and taking a look at examples provided.

I copied most of main code from timer example and paste it to my new project to make modified timer project.

But when I complied it I got "function declared implicitly" message.

that functions are mostly ROM functions. It seems like compiler is not recognizing header files. But I included all the necessary header files.

I set the #include search path correctly as well.

I do not know why. Does this problem have something with #ifdef and --define=TARGET_IS_SNOWFLAKE_RA0?

If so, can you guys tell me what this --define=TARGET_IS_SNOWFLAKE_RA0 is and how to set it?

or let me know how to solve this problem please.

Thank you for reading this

Sincerely,

Jay

over 11 years ago

0 Amit Ashara over 11 years ago

TI__Guru**** 244440 points

Hello Jay,

You need to include rom.h and rom_map.h along with the change of the define to TARGET_IS_TM4C129_RA0. While TARGET_IS_SNOWFLAKE_RA0 is supported it would be good to use the final version of the same.

Regards
Amit

0 jinyoung noh over 11 years ago in reply to Amit Ashara

Prodigy 120 points

Hi Amit,

Thanks for your reply.

By the way, I treid as you said. It still shows the same problem.

It says all the ROM fucntions are declared implicitly and interrupt assignments such as INT_TIMER0A are undefined.

I think header files are being read even though I included in main.c.

Am I missing something to be configured?

0 Genatco over 11 years ago in reply to jinyoung noh

Guru 56218 points

Hi jinyoung,

You may need to add an external global prototype describing your (void) function in the (*.h) file where the external function will be called from other (module.c) existing in your project.

Also advised to clean the project prior to recompile once you add new extern proto statement.

0 Amit Ashara over 11 years ago in reply to jinyoung noh

TI__Guru**** 244440 points

Hello Jay,

Can you attach the code which when compiled gives the error?

Regards
Amit

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Why do I get this error messasge which is "function declared implicitly"?