ULINK2 USB电脑无法识别(连接电脑后，设备管理器显示未知设备)

ULINK: No ULINK Device Found

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Information in this knowledgebase article applies to:

• MDK-ARM V4.70 and later versions
• MDK-ARM V5 -- All versions

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QUESTION

I just updated my MDK-ARM to V4.70 (or later version), and ULINK2 downloads and debugs OK using that version. But I also have an older version of MDK on my PC and now I can no longer download using ULINK2 with the older version. How can I correct this?

ANSWER

You need to reconfigure your ULINK2 adapter. To do this:

1. Connect your ULINK2 to your PC. Do not connect it to a target board.
2. Open a DOS command window.
3. Assuming you installed MDK V470 (or later version) at C:Keil, run the following case sensitive command:

4. C:KeilARMULINKUtilitiesUL2_Configure.exe B0
   

   If you installed V470 (or later version) in another location, replace C:Keil with your installation path.
   Note: The last two characters are "B[zero]" NOT "B[capital O]"

5. You should see:

   Disconnecting from ULINK ...........
   Connecting ULINK Loader....................................
   Updating configuration ...
   Configuration Updated!
   Disconnecting ULINK Loader ..........
   

Now ULINK2 should work with V4.70 (and later versions) and your older version.

参考网址：http://www.keil.com/support/docs/3613.htm