ARM Technical Support Knowledge Articles

UNLOCKING FREESCALE KINETIS MEMORY WITH ULINK

Applies to: ULINK USB-JTAG Debugger

Answer


Information in this knowledgebase article applies to:


PROBLEM

With a Freescale Kinetis K60 board, when trying to download after using the Flash — Erase menu option or with the Erase Full Chip option set, I get the following message:

Kinetis Device is locked! Do you want to unlock it? Mass erase will be executed!

Clicking OK or Cancel displays the following message:

Cannot access Memory

How do I unlock memory?

SOLUTION

For ULINK2, ULINK-ME and ULINKpro debug adapters, you must make sure the Connect and Reset Options in Options For Target — Debug — Settings are set as follows:

After saving these options, try the download again. Memory will unlock and your application should download.

MORE INFORMATION

SEE ALSO

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Article last edited on: 2012-04-24 14:31:15

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