This is a hardfault test @ ARM cortex-M4, test based on STM32F4 board. It mainly shows the five parts now.

Debug(printf) Viewer

• use the keil's debug viewer to shows the core register need dumpped.
• it need enable the "Trace Setting" and set the "Core" as 168MHz
• when enter into debug mode, select "View"->"Serial Window"->"Debug(printf) Viewer"

Test Project using the ARMCC

• its compiled file is the *.axf
• convert it into asembly file by add script in "After Build/Rebuild"

fromelf.exe  -a -d -c -e -g -r -s -t -y -z "#L" -o "$L@L.txt"

• HardFault.txt will in the "Object" folder

Test cases

• Div '0'
• Invalid address access
• Undefined instruction
• Data access violation

Hard Fault doc references

• analyzing HardFaults on Cortex-M CPU
• Atollic_CortexM_crash_analysis_whitepaper
• cortex-m4 devices generic user guide
• Developing a Generic Hard Fault handler for ARM
• HardFault的诊断
• M3 Guide
• Using Cortex-M3M4M7 Fault Exceptions apnt209