ARM UlinkPro for Detecting Sporadic Errors using ETM Trace  
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  ARM UlinkPro for Detecting sporadic errors using ETM trace  
     
 

ESS ARM Tools Team, is pleased to share this application note that explains how ULINKpro is used to identify sporadic errors that where caused by misconfigured hardware. It shows how the advanced debug features of the Arm Cortex-M architecture and the trace adapter helped to find the root cause of the problem that was not related to the application software (in this case a network stack) but caused by a wrong timing configuration of a Flash accelerator.

 

 
  While developing a network application on an NXP LPC43xx (Arm Cortex-M4 based), the system crashes sporadically. The application runs at 180 MHz from internal flash and works as expected for a while, but then ends up in a HardFault. Typically, the error occurs after a few minutes, but the time varies and sometimes it does not occur for quite a while.
This application note shows how we found a dependency on network activity and router behavior, which triggered a certain part of the code to execute.
   
 

 

 
     
 

 
 

Thank You,
ESS ARM Software Sales Team
armtoolssales@embeddedindia.com
+91 9845005268 / 9845403264
+91 080-67648888 (Extn. 33/36)

 
     
 

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