Trying to connect my eTrex H using a USB-RS232 converter, but I get the following error message: Plugin error: source: SPO_SERIALPORT.CPP, line: 284 My PC runs Windows 7 build 7601, the converter uses pl2303 prolific drivers
The SPO SERIALPORT.CPP error message is due to a communications error affecting the flow of data from the computer to the GPS. Typically, it is caused by the communications port of the computer.
To troubleshoot this issue try the following:
Note: To check the version of MapSource currently running or to verify the update was complete in MapSource, click on the Help menu and choose "About MapSource..." This will display the version below the MapSource title.
Cable Connection: Check to ensure the GPS and the computer are securely connected
Serial Port Not Initialized: Make sure the Garmin GPS unit is plugged in and turned on and then restart the computer
Active Processes: Active processes that can use serial port on the computer can cause communication issues between the GPS and the computer. To determine if an active process on the computer may be causing a communication issue between the GPS device and the computer's serial port:
Note: The processes will start up again every time the computer is rebooted.
Bad Cable: Try another serial interface cable to ensure that the cable is not damaged and blocking some of the data transfer
Damaged Serial Port: As a last resort, try another computer to help narrow down the root cause of the problem between cable and communications port issues.
If detection is not achieved after trying these solutions, there may be a problem with the GPS device itself.
Please let me know if you have any questions.
Still get the same error message. Tried on another machine which gave the same message, then the following:
The link is:
Without results, it is difficult to evaluate satisfaction.
Don't bother. Have used the serial port on one of my PCs rather than use the USB converter
Yes, my laptop, which I use for the majority of the time, has no serial ports.