Hello,
I have a MCBSTR9 dev board and have implemented a USB virtual serial port using the example from ST's website. It works fine as long as the jlink JTAG device is plugged in before I plug the board's usb port into my PC. If the jlink device is not plugged in, the device does not enumerate properly. Windows reports a vender and device id of 0x0000, and no driver will load. I have jumper J4 on the board set to ground. Is there a jumper or setting somewhere I am missing? Has anyone experienced this before? Thanks,
-Steve