hi, experts:
通过DBGDRCR.HRQ：可以让CPU进入halting debug state.
执行hlt指令：是否也能让CPU进入halting debug state?
best wishes,
"Not used" exception type on ARMv7 exception table
ARMv7 CPU的exception table,通常如下：
Reset
Undefined
Supervisor Call
Prefetch Abort
Data Abort
Not used : 不太清楚什么情况下，会进入它的entry point?
IRQ
FIQ
best wishes,