RealView Debugger User Guide - ARM Information Center

Working with BreakpointsOther types of breakpointsIf you have set thread breakpoints, these are shown as different types of marker usingicons as shown in Table 4-2. See Halted System Debug and Running System Debug onpage 4-12, and RealView Debugger v1.8 Extensions User Guide for details of usingthese features.Table 4-2 Other breakpoint/tracepoint iconsIconBreakpoint/Tracepoint typeHSD breakpointRSD Thread breakpointRSD System breakpoint4.1.7 Halted System Debug and Running System DebugRealView Debugger supports different debugging modes:Halted System DebugHalted System Debug (HSD) means that you can only debug a targetwhen it is not running. This means that you must stop your debug targetbefore carrying out any analysis of your system. This debugging modeplaces no demands on the application running on the target.HSD is always available as part of the RealView Debugger base product.Running System DebugRunning System Debug (RSD) means that you can debug a target when itis running. This means that you do not have to stop your debug targetbefore carrying out any analysis of your system.RSD is only available where supported by your debug target. It relies onhaving RealView Debugger RTOS extensions installed and is notprovided as part of the base product.RSD gives access to the application using a Debug Agent (DA) thatresides on the target and is typically considered to be part of the RTOS.The Debug Agent is scheduled along with other tasks in the system.Where RSD is supported, RealView Debugger enables you to switch seamlesslybetween RSD and HSD mode using GUI controls or CLI commands.4-12 Copyright © 2002-2005 ARM Limited. All rights reserved. ARM DUI 0153G