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ULINK-2: ITM trace

Hello

I'm trying to activate the traces over the ULINK2 adapter. I followed the instructions from www.keil.com/.../ulink2_trace_itm_viewer.htm
I'm using an evaluation board: MCBSTM32E
Each time when the DEMCR register is accessed:

if (DEMCR & TRCENA)


there is a hardware-fault exception

How this should work? Do you have an idea where is the problem?
Which is the difference between port SW and port JTAG in the configuration? It seems the traces may work only with SW

Regards

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