Use all hardware breakpoints

Introduction

This Technical Note discusses how to take control over the usage of the hardware breakpoints.

Background

The number of hardware breakpoints can become a limitation when debugging in hardware. (An ARM7/9-core typically has 2 hardware breakpoints, while a Cortex-core typically has 4-8 hardware breakpoints.)

Wanted behavoir

All hardware breakpoint should be available for user-debugging. The C-SPY debugger shouldn't use any hardware breakpoints at all.

What to do

Disable the breakpoints that C-SPY sets.

Disadvantages

These debuger features will not be usable:

• run to (main)
• use the stack plugin
• use the "C-SPY Debugger runtime interface" (for example the I/O window in C-SPY).

How to do it

version 6.20 and later

Perform the following actions:

• Disable : Project > Options > Debugger > Setup > "run to"
• Disable : Tools > Options > Stack > "Disable all checkboxes"
• Select : Project > Options > General Options > Library configuration > Library low-level interface implementation > None

version 6.10 and 5.x

Perform the following actions:

• Disable : Project > Options > Debugger > Setup > "run to"
• Disable : Project > Options > Debugger > Plugins > "stack"
• Select : Project > Options > General Options > Library configuration > Library low-level interface implementation > None

version 4.xx

Perform the following actions:

• Disable : Project > Options > Debugger > Setup > "run to"
• Disable : Project > Options > Debugger > Plugins > "stack"
• Disable : Project > Options > Linker > Output > Format > "With runtime control modules"

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