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µVISION DEBUGGER: Debug Issues with NXP LPC4300 SPIFI Devices


Information in this knowledgebase article applies to:

  • MDK-ARM Version 5.14
  • ULINK Debug Adapter
  • Software Pack: Keil.LPC4300_DFP

QUESTION

I am using the MDK-ARM Version 5.14 together with the ULINK-pro Debug Adapter. When I try to debug my application it fails with:

Cannot access Memory (@ 0x00000000, Read, Acc Size: 4 Byte)
Cannot access Memory (@ 0x00000002, Read, Acc Size: 2 Byte)
Cannot access Memory (@ 0x00000002, Read, Acc Size: 2 Byte)
Cannot access Memory (@ 0x00000002, Read, Acc Size: 2 Byte)
Cannot access Memory (@ 0x00000004, Read, Acc Size: 4 Byte)

Is there a solution for that problem?

ANSWER

This problem only exists with MDK-ARM Version 5.14 together with the SPIFI flash ROM of the NXP devices. It is corrected with MDK-ARM Version 5.15 or higher and also does not exist with previous versions of MDK-ARM.

MORE INFORMATION

Last Reviewed: Tuesday, May 5, 2015


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