LimeRFE USB communication error

1

I have a Raspberry pi 5 connected to my LimeSDR-USB and have it connected with a LimeRFE(HAM).

On the RPi I have Dragon OS (Ubuntu) installed with LimeSuite GUI and NG. LimeQuickTest passes fine.

In the terminal lsusb shows both units, the LimeRFE as FDTI device. In dmesg it reads: ‘FTDI USB serial Device coverter now attached to ttyUSB0’.

When I start LimeSuite GUI and select the LimeRFE and select Direct(USB) the USB selector stays empty after refresh. When I click the ‘Open’ button i get the message: ‘Error initializing serial port’ even after entering ttyUSB0 and /dev/ttyUSB0

I also used different USB ports an cables, that made no difference. I also tried the different jumpers and power options (now with 12V PS) as is in the manual.

Any ideas what is wrong?

2

check system permissions for the /dev/ttyUSB0. Or run sudo LimeSuiteGUI

3

Thank you. Permissions were indeed not set properly. Did not think of that as the LimeSR worked just fine. It is now working.