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These adapters appear to Windows 7, bit as COM ports. The FTDI drivers do track device serial numbers to try and reassign the same port numbers, check out the Windows registry for a listing. Intermittently on powering up the system the COM port assignment dlp usb232m one of the sub232m will dlp usb232m.
It’s not a hardware issue. Also, I’m using standard Windows serial port functions and not the D2xx libraries right now so changing over might be vlp bit painful. There has to be something more going dlp usb232m or at least a change in the way the device enumeration is dlp usb232m out.
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DLP DESIGN INC USB to UART Module, DLP-USB232M-G
Chris Ryding 2 7. I’m udb232m to figure out what would cause that behavior.
DLP-USBM-G – FTDI – DLPUSBMG – datasheet
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Sign up or log in Sign up using Google. It seems the most likely culprit is a grounding issue dlp usb232m the port change mostly happens during power up and that’s one of the very few electrical connections between the adapter and the rest of the board. Once we plugged in a USB3 adapter card the dlp usb232m went away.
Questions Tags Users Badges Unanswered. However, for some of these boards, moving dlp usb232m USB cable from one port on the PC dlp usb232m another will also cause a change in the COM port assignment regardless of whether or not the board is powered up.
The cables are good, the drivers are up to date and the uab232m follow the manufacturers reference design.