TMS320F280049C-Q1: Compile and link problems with functions not called in the program

Yale Li 李耀先

Expert 4660 points

Part Number: TMS320F280049C-Q1

Hi Team,

Here's an issue form the customer may need your help:

When I was doing software debugging, I commented out a function code that was not called (an empty function I defined).

Then compile and download to the control board for debugging.

After the program runs to the library function Fapi_setActiveFlashBank(Fapi_FlashBank0) (library version V1.56), it enters the interrupt void USER1_ISR(void) and reports the error.

After I uncommented it (and it still wasn't called), the software ran fine and didn't enter the interrupt void USER1_ISR(void).

I'm using CCS8.3. Can this version set uncalled functions to compile but not link?

For some reason, this customer cannot provide source code for us to analyze.

Looking forward to your help

Best Regards,

Yale Li

over 3 years ago

0 Santosh Jha over 3 years ago

TI__Guru 50611 points

Hi Yale,

Is it possible to get the map file for both situations - working and non-working ?

Also, as they are calling Flash API, just wanted to check if they are running from RAM?

Thanks & Regards,

Santosh

0 Yale Li 李耀先 over 3 years ago in reply to Santosh Jha

TI__Expert 4660 points

Hi Santosh,

Thanks for your support!

Here's the map file:

map_file.zip

And the program is running from Flash.

Best Regards,

Yale Li

+1 Vamsi Gudivada over 3 years ago in reply to Yale Li 李耀先

TI__Guru* 87155 points

Hi Yale,

You should not execute the flash API from the same bank on which the flash erase and program operations are targeted. You can execute the flash API from one flash bank to do flash operations on another flash bank. OR you can execute the flash API from RAM.

Note that this device has flash API in ROM - you can use that as well. No need to allocate space for the flash API in flash or RAM.

This FAQ on Flash API usage for C2000 devices can help you if you have further questions: https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/951668

Thanks and regards,

Vamsi

0 Yale Li 李耀先 over 3 years ago in reply to Vamsi Gudivada

TI__Expert 4660 points

Thanks Vamsi! This is very helpful!

Best Regards,

Yale Li

0 Vamsi Gudivada over 3 years ago in reply to Yale Li 李耀先

TI__Guru* 87155 points

Hi Yale,

Glad you found the FAQ to be helpful. If you have any feedback on any missing questions that I can add to it - please let me know.

Thanks and regards,
Vamsi

0 Yale Li 李耀先 over 3 years ago in reply to Vamsi Gudivada

TI__Expert 4660 points

Hi Vamsi,

The customer wants to know further, when using the Flash API to operate the Flash, under what circumstances will the program enter the interrupt void USER1_ISR(void).

Because when he is debugging the code, there is no problem using the assembly stepping method, but after using run, it will enter the interrupt void USER1_ISR(void).

Thanks&Regards

Yale Li

+1 Vamsi Gudivada over 3 years ago in reply to Yale Li 李耀先

TI__Guru* 87155 points

Hi Yale,

Please open a new post with appropriate title so that it will be easy for us to identify the post to follow-up.

I will close this post since the original question was answered.

Thanks and regards,

Vamsi

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F280049C-Q1: Compile and link problems with functions not called in the program