Path: EDN Asia >> Product Centre >> Test & Measurement >> Debugger for ARM Cortex-M3/M4 MCUs tout fault analysis
Test & Measurement Share print

Debugger for ARM Cortex-M3/M4 MCUs tout fault analysis

15 Jan 2013

Share this page with your friends

Atollic has included a fault analysis feature for the Atollic TrueSTUDIO IDE when developing C/C++ projects for ARM Cortex-M3 or Cortex-M4 MCUs. According to the company, the fault analyser functions allow developers to identify and resolve hard-to-find system faults when the CPU has been driven into a fault condition by the application software.

The fault analyser feature interprets information extracted from the Cortex-M nested vector interrupt controller (NVIC) in order to identify the reasons that caused the fault. Typically, this may include division by zero errors, accessing invalid memory locations or accessing memory locations on misaligned boundaries.

Within the debugger, after a fault has occurred, the code line where the fault happened will be displayed. The user can then view the reasons for the error condition. Faults are categorised broadly into bus, usage and memory faults. Bus faults occur when an invalid access attempt is made across the bus, either of a peripheral or memory location. Usage faults are the result of illegal instructions or other program errors. Memory errors can include attempts of access an illegal location or rule violations of the memory protection unit (MPU).

To further aid fault analysis, an exception stack frame visualisation option provides a snapshot of MCU register values at the time of the crash. By isolating the fault to an individual instruction allows the developer to reconstruct the MCU to the condition they were at the time the faulty instruction was executed.

The fault analyser feature within Atollic TrueSTUDIO's debugger claims to significantly aid embedded developers to quickly understand why the system has crashed thus improving productivity, speeding development time and quickening time to market.




Want to more of this to be delivered to you for FREE?

Subscribe to EDN Asia alerts and receive the latest design ideas and product news in your inbox.

Got to make sure you're not a robot. Please enter the code displayed on the right.

Time to activate your subscription - it's easy!

We have sent an activate request to your registerd e-email. Simply click on the link to activate your subscription.

We're doing this to protect your privacy and ensure you successfully receive your e-mail alerts.


Add New Comment
Visitor (To avoid code verification, simply login or register with us. It is fast and free!)
*Verify code:
Tech Impact

Regional Roundup
Control this smart glass with the blink of an eye
K-Glass 2 detects users' eye movements to point the cursor to recognise computer icons or objects in the Internet, and uses winks for commands. The researchers call this interface the "i-Mouse."

GlobalFoundries extends grants to Singapore students
ARM, Tencent Games team up to improve mobile gaming


News | Products | Design Features | Regional Roundup | Tech Impact