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ULINK: Error: Cannot Write to RAM for Flash Algorithms

Information in this knowledgebase article applies to:

  • MDK-ARM Version 4.22(a)
  • ULINK2 USB-JTAG Adapter
  • ULINKpro USB-JTAG Adapter


Flash download does not work with Texas Instruments (formerly Luminary Micro) LM3Sxxx devices in MDK-ARM version 4.22(a) when reset-type "Autodetect" is selected in the ULINK2 or ULINKpro driver setup dialog. The following error dialog is displayed:

Cannot Write to RAM for Flash Algorithms !


Please download the attached ZIP file and extract it into the C:\Keil\ARM\BIN folder. If MDK-ARM is installed in a different folder, please adapt the path accordingly.


This issue will be solved in MDK-ARM versions greater than 4.22. The attached files only work for MDK-ARM version 4.22!


Request the files attached to this knowledgebase article.


The following Discussion Forum threads may provide information related to this topic.

Last Reviewed: Tuesday, September 11, 2012

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