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"active write protected STM32 device detected"

Question asked by Merav Stassberg on Feb 14, 2017
Latest reply on Feb 15, 2017 by Merav Stassberg

Hi, I am working on ST STM32L151VB-A, I burned a loader which already worked for me, and since then I get "active write protected STM32 device detected" also on other application that worked fine.

 when I try to connect via J-Link commander I get "cannot connect to target".

 as I understand from:https://wiki.segger.com/index.php?title=J-Link_can%27t_connect_to_the_CPU: "This can have different reasons as for example the application does disable the debug interface, re-configures the debug pins, enters some kind of low-power-mode or the security of the device is activated. In order to prevent such situations during the development process"

is this reversible at all? What can be done?

 

Thank you!

 

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