Differences

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--- usb2comport [2009/09/02 06:46]
twdorris
+++ usb2comport [2024/03/15 11:16]
@@ Line 1: / Line 1: @@
-====== USB to COM Port Mapping ======
-===== The Problem =====
-When connecting our ECMLink cable to the laptop, the FTDI driver used by our cable wants to assign different COM ports to each cable.  This is not practical for a laptop used by a shop or general tuner when connecting cables from multiple customer cars.
-To correct this, you can tell the FTDI driver to use a fixed COM port for each physical USB port on your laptop.
-===== The Solution =====
-To tell the FTDI driver to always assign the same COM port to a physical USB port, you have to edit the following registry key:
-''HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\FTDIBUS\Parameters\LocIds''
-In this key, you will specify the location IDs of each USB port you plan to use.
-To obtain the location IDs of your physical USB ports, use the [[http://www.ecmtuning.com/images/forums/usbview/usbview.exe|USBView application]].  When you run this application, you will be presented with a screen as shown below.  Of course, the laptop on which you are running this application will have a different configuration.
-{{http://www.ecmtuning.com/images/forums/usbview/usbview-01.gif  }}
-First, select the Options->Location IDs menu item and then hit F5 to refresh the screen.  The above screen will now look like the one shown below.
-{{http://www.ecmtuning.com/images/forums/usbview/usbview-02.gif  }}

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