HC08 P&E Multilink/Cyclone Pro Connection
Connection Procedure
379
Microcontrollers Debugger Manual
Debugging Limitations
The following limitations are inherent in MON08 debugging. Observe these restrictions
carefully.
1. Do not step a command that branches to itself.
2. Do not step a software interrupt (SWI) command.
3. The hardware breakpoint registers are reserved for use by the debugger. Attempting to
use these registers for other purposes may not work.
4. Be careful about showing peripheral status and data registers in the memory or
variables window. A refresh of the window reads these registers and may cause the
clearing of flags.
5. The debug monitor built into CPU08 processors uses up to 13 bytes of the stack. Do
not write to these addresses from (SP-13) to SP. To load a program into RAM, move
the stack to the end of RAM.
6. If interrupts are turned on during stepping, the debugger does not step into the
interrupt. Instead, it executes the whole interrupt and stops on the command following
the interrupt.
7. Do not set hardware breakpoints within the monitor ROM area itself. Hardware
breakpoints set in this area do not function properly.
Debugging Tips
The following tips may prove useful:
1. Single stepping is allowed in both RAM or ROM.
2. The first breakpoint set is always a hardware breakpoint, and any additional
breakpoints set are software breakpoints. To make sure that a hardware breakpoint is
being set, make sure only one breakpoint is being used.
3. Hardware breakpoints can stop execution in ROM or RAM. Software breakpoints can
stop execution only in RAM.
4. Experiment with the register interpreter. Use the
View Register Files
option in the
MultilinkCyclonePro menu.
5. Executing an SWI instruction while running is functionally equivalent to hitting a
breakpoint, except that execution stops at the instruction following the SWI.
6. A hardware breakpoint may be used to trap a data read/write to anywhere in the
memory map. The debugger stops at the instruction after the one that accesses the data
location.
7. When the target board is reset by the debugger, power to the microcontroller may be
turned off for a short duration. Although much of RAM may look the same, some
values may have changed.
Summary of Contents for Microcontrollers
Page 1: ...Microcontrollers Debugger Manual Revised 22 October 2007 ...
Page 20: ...Table of Contents 20 Microcontrollers Debugger Manual ...
Page 24: ...Book I Contents 24 Microcontrollers Debugger Manual ...
Page 60: ...Debugger Interface Highlights of the User Interface 60 Microcontrollers Debugger Manual ...
Page 156: ...Debugger Components Visualization Utilities 156 Microcontrollers Debugger Manual ...
Page 198: ...Real Time Kernel Awareness OSEK Kernel Awareness 198 Microcontrollers Debugger Manual ...
Page 236: ...Synchronized Debugging Through DA C IDE Troubleshooting 236 Microcontrollers Debugger Manual ...
Page 238: ...Book II Contents 238 Microcontrollers Debugger Manual ...
Page 332: ...HC08 Full Chip Simulation Configuration Procedure 332 Microcontrollers Debugger Manual ...
Page 348: ...MON08 Interface Connection Device Class Description 348 Microcontrollers Debugger Manual ...
Page 364: ...ICS MON08 Interface Connection Device Class Description 364 Microcontrollers Debugger Manual ...
Page 428: ...HC08 FSICEBASE Emulator Bus State Analyzer BSA 428 Microcontrollers Debugger Manual ...
Page 430: ...Book III Contents 430 Microcontrollers Debugger Manual ...
Page 466: ...HCS08 Full Chip Simulation Peripheral Modules Commands 466 Microcontrollers Debugger Manual ...
Page 544: ...HCS08 On Chip DBG Module HCS08 DBG V3 New Features 544 Microcontrollers Debugger Manual ...
Page 546: ...Book IV Contents 546 Microcontrollers Debugger Manual ...
Page 576: ...Book V Contents 576 Microcontrollers Debugger Manual ...
Page 698: ...Book VI Contents 698 Microcontrollers Debugger Manual ...
Page 714: ...Flash Programming NVMC Commands 714 Microcontrollers Debugger Manual ...
Page 730: ...Book VII Contents 730 Microcontrollers Debugger Manual ...
Page 840: ...Book VIII Contents 840 Microcontrollers Debugger Manual ...
Page 864: ...Book IX Contents 864 Microcontrollers Debugger Manual ...
Page 868: ...Legacy Target Interfaces Removed 868 Microcontrollers Debugger Manual ...