TMS320F28P550SJ: (Error -2131 @ 0x0) Unable to access device register. Reset the device, and retry the operation.

Ari Mendes

Hi,

What could be the cause of error -2131? There are days when I can load a certain project on a board using the XDS110, and there are days when error -2131 keeps occurring, in the same project and on the same board.

And this has been occurring in different versions of CCS and different cards, including Launchpads and Controlcards.

Ari.

over 2 years ago

+1 Ryan Ma over 2 years ago

TI__Mastermind 27736 points

Hi Ari,

Please take a look at these two threads which may be why you're seeing this issue: thread 1 and thread 2, Are you using the latest target configuration for the F28P55x?

0 Ari Mendes over 2 years ago in reply to Ryan Ma

Intellectual 495 points

Hi Ryan,

This time, the problem was a short circuit in the jtag connector. As this same error has occurred to me a few times due to software problems, at first I didn't even think about testing with another board.
Thanks.
Ari.

C2000™︎ microcontrollers

C2000 microcontrollers forum

TMS320F28P550SJ: (Error -2131 @ 0x0) Unable to access device register. Reset the device, and retry the operation.