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TMS320F28335: TMS320F28335

Part Number: TMS320F28335
Other Parts Discussed in Thread: UNIFLASH

Tool/software:

Dear Forum,

I am working on a TMS320F28335 project with CC 11.2.0 and development board. This is a flash based project that has been running well for quite a while. Since we are close to release it, I decided to look at ways to secure the on chip memory.

I started playing with CSM password using UniFlash 8.1.1. I entered a password and tried to lock the device. I was able to enter password successfully, however, when I tried to lock it, I got an error saying that debugger could not connect to target. I reset TMS320F28335 and checked connections to debugger (XDS200 USB) but I always get the below error message. 

Is there a way to unlock device? I know the password, but since I cannot connect to target, knowing the password doesn't help.

Thanks in advance for your help.

Felix V.