TMS320F28377S: usb serial cannot communication after device lock by DCSM

Eric Ma

Intellectual 2630 points

Part Number: TMS320F28377S

Hi C2000 champion

My customer use F28377s and run example usb_dev_serial to communicate with PC UART assistor.

When DCSM function not enable, the usb serial work fine to communicate with PC side.

But add DCSM password function, it fail to communicate with PC.

Use CCS to debug, after reset to main, it need to unlock in On chip flash, then it can work. If not un-lock, it fail.

Attached the CMD and DCSM.

Would you help to check this problem?

over 6 years ago

0 Sal Pezzino over 6 years ago

TI__Mastermind 32995 points

Hi,

I have seen your post and will be able to look into this on Monday.

Thank you for your patience.
sal

0 Sal Pezzino over 6 years ago in reply to Sal Pezzino

TI__Mastermind 32995 points

Hi Eric,

What Zone is your code running from? What zone does your data reside for your application?

If you have locked your device, you need to ensure that the data being used by your application is accessible and not prevented from being accessed.

More detailed information would be required to help with this.

Where is your code? What zone?
Where is your data? What zone?

sal

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TMS320F28377S: usb serial cannot communication after device lock by DCSM