Uniflash unlock of DCSM, but CR status still indicates locked

Robert Wolfe

Other Parts Discussed in Thread: UNIFLASH

Hello,

Continuing to try and master the DCSM on the 28379D processor. Using UniFlash, I can unlock the device:

But when I go to read the CR register, memory mapped value, it indicates 0x40 (location 0x5f019):

which according to TRM, indicates the zone is armed, but secure. Why hasn't the CR value changed to reflect that I have unlocked the device?, i.e. 0x60?

Robert

over 4 years ago

0 Vivek Singh over 4 years ago

TI__Guru** 112495 points

Robert,

I do not see even KEYx register value (address 0x5F010 to 0x5F017) correct in this view. They all are 0x0 instead of password values entered. Please make sure you are looking at CPU1 memory view and not CPU2.

Regards.

Vivek Singh

0 Robert Wolfe over 4 years ago in reply to Vivek Singh

Mastermind 7860 points

Vivek,

It is definitely CPU1, I've done nothing with CPU2 yet. Please see below, where CPU1 is highlighted to the right under Memory.

Robert

0 Vivek Singh over 4 years ago in reply to Robert Wolfe

TI__Guru** 112495 points

Robert,

I am not able to see this issue on my setup. In your setup since passwords are not showing correctly in KEYx register, status is correct. Can you list out the step you are following.

Regards,

Vivek Singh

0 Robert Wolfe over 4 years ago in reply to Vivek Singh

Mastermind 7860 points

Vivek,

I will close out this thread, since the other one is now the latest support needed. Please continue with

https://e2e.ti.com/support/microcontrollers/c2000/f/171/p/910727/3368667#3368667

Thanks,

Robert

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Uniflash unlock of DCSM, but CR status still indicates locked