TECI4 / Nanotrack accuracy issues (USB-COM Port timeout adjustment)


On TECI4 and Nanotrack the USB to serial port used is an FTDI device, which by default, Windows has a value of latency timer value of 16. For better performance change this to 1. In snapShot version 4.04t and above this is forced to 1 automatically. An older version may need to be manually adjusted by doing the following:

  1. In Device Manager, right-click on COM port and select properties.
  2. In the USB Properties window, click the tab Port Settings.
  3. Click the button that says Advanced.
  4. In the Advanced Settings window, change the latency timer to 1.
  5. Click OK and then close Device Manager.

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