CYW20706 flash memory override issue

[munjr0612_48795]

I am using CYW20706.

There is an issue that cannot be booted when operating normally after downloading firmware.
I don't know the scenario of creating an issue. Suddenly, it won't boot.
So when I read the memory using dump, I found that strange data was overwritten in the memory from Static section.

"dump_success.txt" is a normal dump file.
"dump_error_issue.txt" is an issue dump file.

Please analyze why these values are overwritten in the dump file with issues.

It's a very important issue. Please check this. please.

[advait_kulkarni]

Hi @munjr0612_48795 ,

We will check and compare the files and get back to you. Meanwhile can you just let us know if you have downloaded the firmware using MTB or Airoc bluetool or with a separate host? And also are you using the default clock frequency?

Thanks and regards,

Advait Kulkarni

[munjr0612_48795]

Hi @advait_kulkarni 

Currently, the firmware download is using "chipload.exe". And the frequency is 24Mhz.

Thanks and regards.

[advait_kulkarni]

Hi @munjr0612_48795 ,

Apologies for missing this thread. If you are still facing this issue, can you please share if there is any difference in method for success and failure scenarios? Is the issue frequent?

Thanks and regards

Advait Kulkarni

[munjr0612_48795]

Hi, @advait_kulkarni 
I've been waiting.

When certain abnormal power is turned on, the flash area seems to be damaged.

I don't know why flash writes itself.

[advait_kulkarni]

Hi @munjr0612_48795 ,

Are you using a custom board with 20706? If yes, then in that case can you share the schematic and PCB files and also those for ext clock and flash so that we can review them?

And have you tried it with other boards or devices and faced the same issue? What is the failure rate?

Thanks and regards,

Advait Kulkarni