TMS320F28388D: CM program jump casuing hardfault

Sheldon He

Part Number: TMS320F28388D
Other Parts Discussed in Thread: C2000WARE

Hi expert,

My customer is designing user bootloader for CM core of F28388D device. They met hardfault (enter fault ISR) when doing the jump.

They jump like this:

(void(*)(void))0x20C000();

Could you help us with tips to check here?

Do we have any demo code for CM core? (we succeed in C28x, not sure are there any differences between the two cores)

Thanks

Sheldon

over 5 years ago

0 Santosh Jha over 5 years ago

TI__Guru 50531 points

Sheldon,

There are multiple examples in C2000ware DriverLib. Please take a look at:

C:/ti/c2000/C2000Ware_3_02_00_00/driverlib/f2838x/examples/cm/

0 Sheldon He over 5 years ago in reply to Santosh Jha

TI__Expert 8585 points

Hi Santosh,

Could you specify which one demonstrating a "program jumping" in CM core?

Thanks

0 Praveen Kumar Ravichandran over 5 years ago in reply to Sheldon He

TI__Expert 4580 points

Sheldon,

Are you using code_state 16 or 32? If it is code_state = 16, you are supposed to set the branch address to target address+1 when using hard coded addresses.

Have you tried that yet?

Regards,
Praveen

0 Vivek Singh over 5 years ago in reply to Praveen Kumar Ravichandran

TI__Guru** 113755 points

Sheldon,

Also, is this issue same as one raised by other user on this post ? We have got multiple post on similar issue same day.

Regards,

Vivek Singh

0 Sheldon He over 5 years ago in reply to Vivek Singh

TI__Expert 8585 points

Hi Vivek,

Yes, my customer's post.

Sheldon

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TMS320F28388D: CM program jump casuing hardfault