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sjpatel19922
Associate II
March 10, 2017
Question

Debugger access locked out?

  • March 10, 2017
  • 2 replies
  • 1166 views
Posted on March 10, 2017 at 15:52

Hi, is it possible to lock out debugger access after programming the DCF record in the UTEST memory region?

I am using the 

SPC570S40E1 micro and the Lauterbach debugger. After programming a DCF record incorrectly, I am getting a 'debug port fail' error when entering these commands: �SYStem.DETECT CPU� or �SYStem.Up�. 

How do I go about unlocking the device?

Thanks

#censored #spc570s40e1 #dcf
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    2 replies

    Erwan YVIN
    ST Technical Moderator
    March 16, 2017
    Posted on March 16, 2017 at 11:40

    Hello ,

    you should configure your debugger to enter the password  NVPWD1/NVPWD2

    the default password is 0xFEED_FACE_CAFE_BEEF.

          Best regards

                     Erwan

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    sjpatel19922
    Associate II
    March 16, 2017
    Posted on March 16, 2017 at 15:07

    Hey Erwan, I have tried the command '

    SYStem.option.keycode 0xFEEDFACECAFEBEEF' , but it didn't work.