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C166: µVISION crashes when System Viewer window opens

Information in this knowledgebase article applies to:

  • PK166 7.x and MDK 5.12 installed in the same folder


When PK166 version 7.x and MDK 5.12 is installed into the same folder (e.g. C:\Keil_v5) µVision may crash when a System Viewer window is opened in a 166 debug session (simulator or target debugger). If System Viewer windows are opened automatically, µVision may crash when a debug session is started. In this case you see the Windows dialog 'µVision IDE has stopped working'.


Unfortunately, MDK version 5.12 contains one µVision-file which is incompatible to the PK166 toolset. This only applies when MDK 5.12 is installed into a folder where a PK166 7.x is already installed.


Download the attachment of this knowledgebase article and unzip it to the folder C:\Keil\UV4\. The drive and path (C:\Keil) may vary depending on your MDK-ARM/PK166 installation path. This updates the file SysViewer.dll.


This patch file is only intended for MDK-ARM version 5.12. This issue will be fixed in higher versions of MDK-ARM.



Request the files attached to this knowledgebase article.

Last Reviewed: Friday, November 21, 2014

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