xds100 unable to access device register

Thomas Germann

Hi everybody

I have a TMS570 Eval kit which behaves funny: I can develop code with it for 2 weeks then the CCS cannot connect to it anymore:

I of course tried this:

Unistall and reinstall CCS
Change Eval-Kit
Change USB-cable from Laptop to Eval-Kit
Change Laptop

Only the change of the Laptop got it working again. Unfortunately after another 2 weeks I am at the same point again: CCS cannot connect to the target anymore.

Has anyone seen this behavior before? And more important: does anyone have a solution for it?

Kind regards, Thomas

over 12 years ago

0 QJ Wang over 12 years ago

TI__Guru**** 198766 points

Hi Thomas,

Please download FTCLEAN to clean all the FTDI drivers from the PC. The PC may have several version FTDI drivers as on my PC.

http://www.ftdichip.com/Support/Utilities/FTClean.zip

After clean, please re-install the FTDI driver from TI.

Regards,

0 Kevin Xiao over 10 years ago

Prodigy 175 points

Hi Thomas

I meet the same problem with you.

Have you found out the reason?

Wish for your reply.

0 Thomas Germann over 10 years ago in reply to Kevin Xiao

Prodigy 60 points

Hi Kevin

I uninstalled everything and used the cleaning-device that was provided by QJ in the above reply from Mar 19, 2013 3:58 PM. I then reinstalled all that was needed and made sure that I always plugged the debugger into the same USB-Port so that it wouldn't install the same driver again when using another USB-Port.

By now I use a more fancy debugger, the X560.

Kind regards,

Thomas

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xds100 unable to access device register