TMS320F28035: Problem in programing

phan hiep

Part Number: TMS320F28035

Hi Support,

I'm Hiep from M1 company, Viettel Group, VietNam.

We use TI XDS110 to programing tms320f28035 in mass production. We have a problem as shown below figure with a ratio of 50/2000 products.

I think the device is locked, so I would like to ask is there any way to unlock the device or method to load the program to avoid this error in production?

Regards,

over 2 years ago

0 Hareesh Janakiraman over 2 years ago

TI__Guru* 94285 points

Hiep,

What is the past history of these devices? Were they ever programmed and successfully working?
Or did you face an issue while programming them for the first time?
Does your COFF file have passwords?
If your devices are locked and you are unable to connect/unlock them via CCS, I am afraid your only choice is to replace the parts. Devices may become inadvertently locked if the Erase/Program operation is disturbed due to a brown-out/black-out condition. This could also happen if the devices are current-starved during erase/program operation. See https://e2e.ti.com/support/microcontrollers/c2000/f/171/t/826343

Below are a few more helpful posts:

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/820961/ccs-tms320f28069m-device-calibration-not-complete-device-is-locked/3040949#3040949

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/657693/tms320f28065-programming-lock-issue

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/864400/tms320f2808-tms320-devices-get-locked-accidently-reason-is-unknown/3203361#3203361

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/937326/ccs-tms320f28069-do-not-use-wait-mode

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28035: Problem in programing