"Failed to halt processor" on Memtool

[#1]

Using Memtool, after enabling the global R/W protection on my XMC4500 (1 MB), I get the message "Failed to halt processor" when I try to connect.

It looks like the miniWiggler does connect with the Cortex-M core, but the Flash operations are not available since the processor is still running.

Any ideas of how to disable the global protection? Any ideas of how to make the processor halt?

Thanks