10 years, 11 months ago.

USB driver fails suddendly and erraticaly

I use a visual basic application which talks with the mbed using an RS232 serial port. I have installed the usb driver mbedWinSerial_16466.exe under Windows 7 pro. My app. reads and talk to the mbed approx. every second.

Everything will work fine for days but, randomly, the visual basic app. will no longer obtain an answer from the mbed; plugging and unplugging the mbed usb will no longer be recognized by windows in the usb devices, and I must reboot windows to reset these problems.

Considering the erratic occurence, I tried to disable every updates, and also the network connexion, which does not help.

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