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By danny.e.ferguson
#203293
I received my new GPS RTK2 board and the Bluetooth Mate Silver this week and started working with them yesterday. I followed the hookup guide for Connecting the GPS-RTK2 to a Correction Source. Everything worked great the first time. I shut everything down for the night and when I tried to hook up again today I can't connect to the board at all. When I try to connect via usb in u-center the error message simply says "Can not connect to COM9 9600". I tried disconnecting the bluetooth and get the same result. Any ideas?
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By TS-Mark
#203313
Hi Danny,

That is a pretty strange error. Are you sure you are selecting the correct COM port and that it is not in use by another program like a terminal software? Double check the GPS is still showing up as a COM port in your Device Manager.

If you're still having issues, please take a few photos of the top and bottom of your board and attach them to your reply.
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By danny.e.ferguson
#203331
Mark,

Thanks for the reply. I double checked the port was correct. I also manually removed the device from my Windows environment and when I plugged it back in the device reinstalled. When I then checked the device status in the device manager Windows reported the device is working properly. Next check was in u-center and the same problem persisted. Additionally, I plugged my C94-M8P board into the same physical USB on my computer and that device is working normally. I have attached some pictures as you requested.
ZED-F9P Front.jpg
ZED-F9P Back.jpg
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By TS-Mark
#203368
Hi Danny,

Thanks for checking those suggestions and including the photos. They are very helpful. Nothing looks physically wrong with the board and I am pretty stumped with this error message as there is no documentation from u-blox about that specific issue. I have a feeling it is related to the USB cable or the USB connector on the board since your other u-blox board is connecting just fine.

Try opening a terminal using something like PuTTY or TeraTerm and check if you are still getting NMEA sentences printing from the ZED-F9P. Let me know if you have issues using a terminal program as well as u-center. If you happen to have another device with a USB Type C connector, try plugging it into your computer with the cable you are using with the ZED-F9P and see if you can interact with that device.

It may just be a defective cable that broke sometime after your first use and if that is the case, we can get you a replacement. If you do not have another USB Type C device and are not able to connect to the ZED-F9P with a terminal program, I think what would be best is to have the ZED-F9P and the USB cable sent back to SparkFun for testing.
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By danny.e.ferguson
#203382
I tried connecting with PuTTY and had similar results as u-center, not being able to make a connection at all. I tried connecting a smartphone with the same cable and was able to get a connection and transfer files with no issues. Sounds like it might be something integral to the board then?
User avatar
By TS-Mark
#203391
It definitely seems like something is wrong with the serial connection on your ZED-F9P. If you purchased the GPS module directly from SparkFun, please fill out the form on the right side of this page and link this forum post in the "Why do you want an RMA?" box and we will get you set up with an RMA ticket for your order.

If you did not purchase it directly from SparkFun, please send me a private message and we can discuss how we can move forward to resolve this issue.