TMS320F2809: Uniflash : issue programming OTP memory

David BERTHO

Prodigy 80 points

Part Number: TMS320F2809
Other Parts Discussed in Thread: UNIFLASH,

Hi,

uniflash 4.2.0

TMS320F2809

XDS100v3 probe

I want to program OTP and Flash memory of a TMS320F2809 using uniflash.

No problem for erase/program/verify the flash memory.

For the OTP memory, when I "LOAD IMAGE" in uniflash, I have the WARNING and ERROR messages below:

[WARNING] C28xx: Loader: One or more sections of your program falls into a memory region that is not writable. These regions will not actually be written to the target. Check your linker configuration and/or memory map.

[ERROR] C28xx: File Loader: Verification failed: Values at address 0x3FFFC0@Program do not match Please verify target memory and memory map.

My OUT file is used since several years in production with an old CCS version with no problem.

I don't understand why uniflash wants to verify the memory at 0x3FFFC0. There is no link with the OTP region in the F2809.

When I compare the OTP checksum with uniflash and CCS, there is a difference: uniflash gives 0xEFF0, that is not good!

However, the OTP memory seem to be well programmed.

Thanks for your answer,

David

over 8 years ago

0 Manoj Santha Mohan over 8 years ago

TI__Guru 55700 points

David,

I have highlighted the problem mentioned to CCS / Uniflash team. They will look into this and get back with you.

Regards,
Manoj

0 Ricky Lau over 8 years ago in reply to Manoj Santha Mohan

TI__Genius 13105 points

David,

The warning and error indicates that there is a section in your .out file that is allocated at 0x3FFFC0. If you have the linker file for the project you use to generate this .out file, please make sure you are not allocating data to 0x3FFFC0.

The checksum should be the same between UniFlash and CCS. Which version of CCS are you comparing it to?

Thanks,
Ricky

0 David BERTHO over 8 years ago in reply to Ricky Lau

Prodigy 80 points

I use an old CCS version: 3.3. The design dates from 2008 and it is still used in production. Now I am designing an upgrade of the electronic board by keeking the OPT software.
I will check my linker file.
I do not plan to relink my .out file.

Thanks
David

0 Ricky Lau over 8 years ago in reply to David BERTHO

TI__Genius 13105 points

David,

Thanks for the info. CCS3.3 is really old, and there's a chance it is just ignoring the section at 0x3FFFC0 in your .out file.

As for checksum, there might be bugs in the checksum calculation in CCS 3.3 that makes it not match with UniFlash 4.2.

Thanks,
Ricky

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TMS320F2809: Uniflash : issue programming OTP memory