How does the debugger halt CPU?

[is]

Hi,

My host MCU controls nRF51 over SWD interface.

How can stop/halt nRF CPU? After initialization the SWD(init/read DB/AP AHB, etc.) I need to halt (stop nRF program) the CPU. In which way can I do it?

Thanks, Y0lo

[awneil]

Are you developing your own debugger?

You should see the standard ARM Cortex-M0 documentation for this.

infocenter.arm.com/.../index.jsp