RDDI-DAP Error,Error: Flash Download failed - "Cortex-M4"

[haiboyang]

Hi friend;

I am trying to build and download sdcard_fatfs demo code, could pass build, but fail to flash download in Keil enviroment, following are the errors, appreciate any comments.

I attached my debug configuration picture.

Load "debug\\sdcard_fatfs.out"
Erase Done.
Programming Done.
RDDI-DAP Error
Error: Flash Download failed  -  "Cortex-M4"

Haibo

[kerryzhou]

Hi Haibo Yang,

    Please tell me what the board and the code you are using? Is the official board?

   Please also check the MDK configrations:

  Whether in Utilities also have he debugger configurations?

  In this picture:

Please select the lower max clock and try again.

  If you still have problem, please tell me the board, the code and the MDK version which you are using, then I will try it on my side.

Have a great day,
Kerry

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