ARM ARM DUI 0137A manual Debugging with RMHost, Nonstop debug

Debugging with RMHost

3.1Debugging 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 Chapter 2 Connecting to RMHost.) You can display, for example, memory windows, register contents, and variables.

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 page 33

•CPU register access on page 34

•Nonstop startup on page 34

•Background setting and clearing of breakpoints and watchpoints on page 35

•Profiling on page 35

•Data messaging on page 35

•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 page 14).

3.1.1Nonstop 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.

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