TMS320F28379D: C2000 SCI Boot Loader returns error

Dirk Zenker

Part Number: TMS320F28379D

Hallo,

I have the serial flash programmer connected to a F28379D device. Communication works, flash kernel is loaded, operations like Erase CPU or Run CPU are working.

Next I have a working blinky program, that lets a connected LED flashing. This little program works out of the flash, when programmed via the debugger.

However, I want to flash this program via SCI boot loader. I converted the blinky application with

  hex2000.exe -boot -a -sci8 TRuSST_C28_1f.out -o applf.txt

without any problems.

Next I want to flash this with the serial flash programmer:

  serial_flash_programmer.exe -d f2837xD -k F2837xD_sci_flash_kernels_cpu01.txt -b 9600 -p COM1 -v -a applf.txt

The flash kernel is loaded, next I choose DFU CPU1 and next the blinky application is transferred to the flash kernel correctly.

But after this the following error occurs:

... a lot if data ...
0
0
Bit rate /s of transfer was: 1148.564819
Application load successful!
Done waiting for application to download and boot...
SUCCESS of Command
ERROR Status: PROGRAM_ERROR
ERROR Address: 0x80044
Flash API Error: Incorrect Data Buffer Length
Please refer to the Flash API documentation for further explanation of the error.
FMSTAT Register contents: 00

What have to be done, the get the SCI boot loading working?

Thank you.

over 2 years ago

0 Vamsi Gudivada over 2 years ago

TI__Guru* 87105 points

Hi Dirk,

Do you have all the sections aligned on 128-bit boundary (using ALIGN(8)) in your application linker command file?

Thanks and regards,

Vamsi

0 Dirk Zenker over 2 years ago in reply to Vamsi Gudivada

Intellectual 700 points

Hi Vamsi,

I used a linker command script from the C2000 ware, but you are right! The linker sections are just aligned with ALIGN(4).

Thank you very much for your support. From the error message I did not come to the conclusion, this is could be an alignment issue. I think the case should be solved. Unfortunately actually I can not test this, because I'm suddenly in quaratine with Corona and my equipment is in the office.

I will prove this as soon as possible.

Thanks and regards,

Dirk

+1 Dirk Zenker over 2 years ago

Intellectual 700 points

Hi Vamsi,

thank you very much for your support and your patience. Today I'm recovered and able to test.

Your solution is correct. Setting all sections to an 128-bit alignment solves the SCI boot loader error "Incorrect Data Buffer Length".

Thanks and regards,

Dirk

0 Vamsi Gudivada over 2 years ago in reply to Dirk Zenker

TI__Guru* 87105 points

Hi Dirk,

Glad to see your reply - Hope you recovered well from covid. Thank you for the update.

Regarding your comment on not able to come to the conclusion as alignment issue, I will file a ticket to update the kernel guide to mention this detail if it is not there already (I remember it already exists - will add if not). Thank you for the feedback.

Thanks and regards,
Vamsi

0 Dirk Zenker over 2 years ago in reply to Vamsi Gudivada

Intellectual 700 points

Hi Vamsi,

since you mention there should be an documentation of the alignment requirement, I did search my document. I used SPRABV4C from march 2019. There was no such description, BUT there is a new version of the document: SPRABV4E from october 2021.

And you are right again, in the new version of the document the 128 bit alignment is mentioned in chapter 7 Troubleshooting. My fault. Sorry. Please dont file a ticket about this.

Thank you very much for your detailed support.

Thanks and regards,

Dirk

0 Vamsi Gudivada over 2 years ago in reply to Dirk Zenker

TI__Guru* 87105 points

Hi Dirk,

No problem.

Yes, I checked and it is mentioned. I am closing this post.

Thanks and regards,
Vamsi

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TMS320F28379D: C2000 SCI Boot Loader returns error