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TMS32028035 Trouble Reading Register PC: (Error -1142 @ 0x0) 0x3FF599 (no symbols are defined for 0x3FF599)

Dear Supplier,

I'm using  Code Composer Studio Version: 6.1.2.00015 and DPLibv3_4Template-F2803x to develop my firmware.

1- In Project Explorer I'm performing COPY of the project DPLibv3_4Template-F2803x, PASTE and RENAME.

2- I run the copied project and it works well.

3- I perform changes in the original code to perform tasks according to my application: ADC configuration, PWM etc...

4- I test the modified code and my code works well.

5- I close code composer studio and restart my laptop.

6 - I open code composer studio and run my project (the same that was working before closing CCS), the following problem happens:

Trouble Reading Register PC: (Error -1142 @ 0x0)

Device blocked debug access because it is currently executing non-debuggable code. Choose 'Rude Retry' to disable polite mode and force the operation.

(Emulation package 6.0.407.3)

0x3FF599 (no symbols are defined for 0x3FF599)

7 - I run again the original project DPLibv3_4Template-F2803x without my changes and it works well.

8 - I run my modified project and it runs correctly.

What could be the reason for this problem?