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µVISION DEBUGGER: ERROR: CMSIS_DAP.DLL is missing


Information in this knowledgebase article applies to:

  • MDK-ARM Version 4.54

SYMPTOM

When the CMSIS-DAP target debugger is selected in a µVision project and a debug session or flash download is started, µVision shows the error dialog CMSIS_DAP.DLL missing. This only happens on some PCs.

CAUSE

The CMSIS_DAP.DLL was built with an option that requires a specific Microsoft DLL to be present in Windows. If this DLL is not present, this error dialog is shown.

RESOLUTION

Please download the file that is attached to this knowledgebase article and extract this ZIP file into the folder C:\Keil\ARM\BIN. If you have installed MDK-ARM to a different folder, please adapt the path accordingly.

STATUS

This patch file is only intended for MDK-ARM version 4.54. This issue will be fixed in higher versions of MDK-ARM.

ATTACHED FILES

Request the files attached to this knowledgebase article.

Last Reviewed: Tuesday, March 5, 2019


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