MDK5.28最新版
http://armkeil.blob.core.windows.net/eval/MDK528.EXE

Microcontroller Development Kit - Version 5.28 release -development-

• [uVision updated to V5.28.0.0]
  
  • µVision now allows to set the trace clock in the debug configuration independently from the core clock. For those devices using a separate trace clock, trace is now captured and processed correctly. This is available for all ULINK debug adapters and CMSIS-DAP.
  • The System Analyzer data can now be saved as a comma separated or tab separated value file for post processing.
    
• [Arm Compiler included]
  
  • Included Arm Compiler 5 version 5.06u6 - same as in MDK version 5.26: see Release Notes for further details.
  • Updated Arm Compiler 6 to version 6.12: - same as in MDK version 5.27: see Release Notes for further details.
    
• [Software Packs included]
  
  • ARM - CMSIS 5.5.1 - same as in MDK version 5.27.
  • Keil - MDK Middleware 7.8.0 - same as in MDK version 5.27.
  • Keil - Arm Compiler Extensions 1.6.1 - same as in MDK version 5.27.
  • ARM - CMSIS-Driver 2.4.0 - same as in MDK version 5.27.
    
• [Target debugging]
  
  • Added: P&E Micro Debugger driver installation can be launched from within µVision Options for Target Debug Settings dialog.
  • Updated: Segger J-Link debug driver to version 6.46.
  • Updated: NULink driver to version 3.00.6909.
    
• [Licensing]
  
  • This version of MDK introduces the new editions Keil MDK Holtek Edition - Cortex-M0+ and Keil MDK Holtek Edition - Cortex-M.
  • This version of MDK does not support the MDK Professional 7-day evaluation license.
    
• [Supported Operating Systems]
  
  • Refer to System Requirements Overview for hardware and operating system requirements.
    

好象没说解决了之前经常崩的问题， 还是先不升级了， 省得又要重装JLINK

先下载看看