CCS/TMS320F28069: Differences between F2806X and F2802X Project Files?

Chris Yorkey

Genius 15855 points

Part Number: TMS320F28069

Tool/software: Code Composer Studio

Team,

Yesterday, our customer showed us these differences (attached) between the F2806X and F2802X Project Files.

Why the difference? How to explain this?

The REGS Structure is constructed very differently between the two. The customer had to add the below syntax to get it working properly.

WHY?

Thanks,
CY

over 8 years ago

0 Lori Heustess over 8 years ago

TI__Guru* 92120 points

Chris,

What is the path and file name for the above files?

Regards
Lori

0 Chris Yorkey over 8 years ago in reply to Lori Heustess

TI__Genius 15855 points

Hi Lori,

It's the following:

Let me know if something looks fishy.

Thank you,
Chris

0 Lori Heustess over 8 years ago in reply to Chris Yorkey

TI__Guru* 92120 points

Chris,

The engineer who would most likely know why this change was made is out of the office. Is this a roadblock? If it is not a roadblock, then I'd prefer to wait until he is back to see if he has input.

Regards

Lori

0 Chris Yorkey over 8 years ago in reply to Lori Heustess

TI__Genius 15855 points

Hi Lori,

This isn't tremendously urgent so we can wait...no problem at all!

We will touch base sometime next week.

Thank you for your follow up,

Chris

0 Manish Bhardwaj over 8 years ago in reply to Chris Yorkey

TI__Mastermind 43730 points

Chris,

In a "*.h" file you cannot have a variable definition, hence the below is correct

/**
* Allows access to all EPwm modules
*/
extern volatile struct EPWM_REGS *ePWM[];

It is user's responsibility to define this structure as below in an *.c file

// Used to indirectly access all EPWM modules
volatile struct EPWM_REGS *ePWM[] = {
&EPwm1Regs, //intentional: (ePWM[0] not used)
&EPwm1Regs, &EPwm2Regs, &EPwm3Regs, &EPwm4Regs, &EPwm5Regs, &EPwm6Regs,
&EPwm7Regs, };

We had the incorrect definition in the *.h file in some version of the library, and we fixed it at some point...

But some documentation may still be inconsistent..

The above outlined is the correct way.. they can run into esoteric compiler bugs otherwise..

0 Chris Yorkey over 8 years ago in reply to Manish Bhardwaj

TI__Genius 15855 points

Manish,

Thank you very much. We met with the customer face-to-face last Friday and explained your input.

They are satisfied for now. Case closed.

Thanks again,

Chris

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CCS/TMS320F28069: Differences between F2806X and F2802X Project Files?