Wednesday, January 14, 2009

Typical COM port setting


Unless the program specifies otherwise, here are the typical COM port settings to use when interfacing with a GPS receiver:
  • Baud rate: 4,800 and 9,600 baud are almost certainly guaranteed to work with all GPS receivers. You can increase the speed to a higher rate on some types of GPS receivers. The higher the speed, the faster the data transfer. I recommend experimenting until you find the fastest, mostreliable baud rate, and then using that setting.
  • Data bits: 8.
  • Parity: None.
  • Stop bits: 1.
  • Flow control: None.
Some GPS receivers allow you to set the baud rate in the system setup page of the receiver, but other models don’t give you any control of the speed. Check your GPS receiver user guide for more information about your model.

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