ARM ARM DUI 0137A 3.1 Debugging with RMHost

Debugging with RMHost

3.1 Debugging with RMHost

When connected to RMHost, the AXD user interface is identical to that when connected

to other debug targets such as Multi-ICE. (For details on connecting to RMHost, see

Chapter2 Conn ecting to RMHost.) You can display, for example, memory windows,

This section describes the standard debugging features you can use when connected to

RMHost, and how to use these features when connected to RMHost as the debug target:

•Nonstop debug

•Background memory access on page33

•CPU register access on page34

•Nonstop startup on page 34

•Background setting and clearing of breakpoints and watchpoints on page35

•Profiling on page35

•Data messaging on page35

•Semihosting on page 35.

Note

The debugging features supported by RMHost are supported by any debugger that is

RDI 1.5.1-compliant (see RMHost requirements on page14).

3.1.1 Nonstop debug

When you are debugging with Multi-ICE, for example, and you stop the target using

breakpoints, the processor is halted, and no application can run in the foreground or

background.

Nonstop debug, which is available when connected to RMHost, refers to when the

foreground application stops when a breakpoint is hit, and the processor continues to

run. This allows system-critical tasks, such as IRQ and FIQ handlers, to continue to run

as you debug your foreground application.