TMS320F28379D: FLASH ECC Detect

Ben Qin

Part Number: TMS320F28379D
Other Parts Discussed in Thread: C2000WARE

Hi Team,

There's an issue from the customer need your help:

1. In the 28379 MCU self_test example, there is FLASH ECC detection uint16_t STL_Flash_detectECCError(const STL_Flash_ECCDetectHandleflashECCDetectHandle)

When inserting FLASH ECC fault, use the following address
#define STA_USER_FLASH_START_ADDR_ERR 0x701F8U
#define STA_USER_FLASH_END_ADDR_ERR 0x701FCU

Check the relevant information, the 0x701F8U-0x701FFU area is the TI OTP area, and TI has inserted an ECC fault in this area, how often is this fault triggered?

2. FLASH ECC is detected during power-on self-test, and faults can be triggered when fault insertion is performed; however, when FLASH ECC is used for periodic self-test in the mainloop, faults can sometimes be detected when fault insertion is performed, and sometimes they cannot be detected. It changes periodically. Is this caused by the ECC failure trigger period in the TI OTP area is not fixed?

Thanks & Regards,

Ben

over 2 years ago

0 Vamsi Gudivada over 2 years ago

TI__Guru* 87155 points

Ben,

ECC error will occur whenever the TI-OTP ECC error location is read by the application.

Did the customer ask about the single bit error Or the uncorrectable error?

Thanks and regards,

Vamsi

0 Ben Qin over 2 years ago in reply to Vamsi Gudivada

TI__Intellectual 2690 points

Hi Vamsi,

When reading the above address, why does periodic reading sometimes detect error triggers and sometimes not?

Best Regards,

Ben

0 aleyna yılmaz over 2 years ago in reply to Ben Qin

Prodigy 205 points

Hello, I wonder if you can tell me the file path of this example you are using, I am looking for an example about ecc but I could not find it, thank you very much.

0 Vamsi Gudivada over 2 years ago in reply to Ben Qin

TI__Guru* 87155 points

Ben,

Is your question regarding the single bit error Or the uncorrectable error?

For single bit error, there is a threshold configuration (please see TRM flash chapter's SECDED section) which has to be met for an error interrupt to be generated.

Thanks and regards,
Vamsi

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

TI__Guru* 87155 points

Ben,

Do you have further questions on this? Or can I close this post?

Thanks and regards,

Vamsi

0 Vamsi Gudivada over 2 years ago in reply to aleyna yılmaz

TI__Guru* 87155 points

Hi Aleyna,

I just noticed your question here. Maybe I did not see your question because I replied to Ben's question by clicking on the email notification about this post.

Regarding your question for the example: Please take a look at the examples provided at C2000Ware_5_00_00_00\libraries\diagnostic.

Thanks and regards,
Vamsi

0 aleyna yılmaz over 2 years ago in reply to Vamsi Gudivada

Prodigy 205 points

Hi Vamsi,

There are no examples for f2837 in the examples here. I wonder where can I find the required(ECC) examples? Or which board examples can I use?

Thanks

Aleyna

0 Ben Qin over 2 years ago in reply to Vamsi Gudivada

TI__Intellectual 2690 points

Hi Vamsi,

Yes, you can close this post.

Thanks & Regards,

Ben

0 Vamsi Gudivada over 2 years ago in reply to aleyna yılmaz

TI__Guru* 87155 points

Hi Aleyna,

You can review f28002x examples and modify as needed. If you need further support, please open a separate post.

Thanks and regards,
Vamsi

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TMS320F28379D: FLASH ECC Detect