Hieu Vo

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8 years, 9 months ago.

Issue with Windows driver

I have encountered an issue working with a nRF51-DK board on a Windows 7 machine twice within the last half an hour. The PC system would stop recognizing the device. Looking up Windows' Device Manager, the status of "mbed Composite Device" is:

Windows cannot load the device driver for this hardware because a previous instance of the device driver is still in memory. (Code 38)

The first time this happened is after I dropped a new firmware onto the board. I restarted Windows, and the PC could see the board again. But after I unpluged the board from the PC, and plug it back a few minutes later, I encountered the issue again.

If anyone could point out a way to prevent the issue that would be awesome. A way to resolve the driver issue faster than rebooting my entire PC would also be a great help.

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