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C51, C251, C166 Development Tools

Error E166

Summary
*** Error E166


AGDI: Debug access variable not supported.
Description

A pre-defined debug access variable referenced in a CMSIS Pack Debug Description is not supported by the debug driver DLL.

Cause

µVision and the debug driver DLL use different versions of the CMSIS Pack Debug Description. µVision tries to access a pre-defined variable which is unknown to the debug driver DLL.

Resolution

Disable the use of CMSIS Pack Debug Description in Options for Target - Debug - Settings - Pack or make sure that µVision and all DLLs support the same debug description version.

Configure the target manually for debugging.

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