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ST-Link connection problem

Emmanuel Bouvett

Hi guys,

I have been using the keil mdk-arm v4.6 to develop code for the ST Inemo-M1 discovery board. For my projects I used the ST-LINK debugger.

I then downloaded the newest version of the keil mdk-arm v5. (In the process, I uninstalled the other (v4.6) keil I had as it was functioning sort of erratically).

I re-compiled a project succesfully with the new version but when I try to load the program to flash it says: 'No ST-Link detected'; then 'Error: Flash download failed - Target DLL has been cancelled'. I uninstalled the ST-link utility and the ST-LINK driver and installed them back again but to no avail.

I then tried using the ST-LINK utility directly to load the program and it works without a hitch.

I did do all the proper settings for target including the utility debug and utility settings as well as the flash programming algorithm..

Any ideas as to what I can do or try?

regards

Parents
  • 0 in reply to Emmanuel Bouvett

    Hi guys,

    I did another much simpler project, just an addition of two integers in main.

    With both the st-link and inemo-m1 board removed, I went into taget options and utility settings. In the debug tab it says under SW device that 'No ST-LINK detected' which is fine.

    Then I plug in the st-link and this changes to 'No Cortex-M SW device found' which is fine since the inemo board is still disconnected. Moreover I think that this shows that uVision acknowledges that an ST-Link debugger was connected.

    Then I plug the inemo board as well and the text changes to 'ARM coreSight SW-DP', therefore the uvision must have got an acknowledgement somehow that the board was also connected.

    Still, when I actually try to load the flash program, uvision still returns an error as above.

Reply
  • 0 in reply to Emmanuel Bouvett

    Hi guys,

    I did another much simpler project, just an addition of two integers in main.

    With both the st-link and inemo-m1 board removed, I went into taget options and utility settings. In the debug tab it says under SW device that 'No ST-LINK detected' which is fine.

    Then I plug in the st-link and this changes to 'No Cortex-M SW device found' which is fine since the inemo board is still disconnected. Moreover I think that this shows that uVision acknowledges that an ST-Link debugger was connected.

    Then I plug the inemo board as well and the text changes to 'ARM coreSight SW-DP', therefore the uvision must have got an acknowledgement somehow that the board was also connected.

    Still, when I actually try to load the flash program, uvision still returns an error as above.

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