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USB CDC on 32L0538DISCOVERY

Question asked by madzarac.milan on Dec 12, 2014

 

 

Hi Guys,
Using Cube I configure STM32L053C8T6 for USB CDC and compile the code using Keil.
Using Keil I flash the 32L0538DISCOVERY.
On the PC side I installed VCP_V1.4.0.
When plugging PC’s USB to “USB User” on the 32L0538DISCOVERY, 
Device Manager on PC would show exclamation marks instead enumerating device.
Could you guys see what is wrong.
Attached is Cube-Keil project and Device Manager screenshot.
Regards

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