Set XTRX reference clock frequency

Projects Lime Suite
1

When limeSuiteNG starts, it sets the reference clock to 26MHz. If I use 26MHz external clock and write “5” to FPGA register 0x18, it works. I need to use 10MHz or 40MHZ external reference clock but could not find where to set reference clock frequency in limeGUI(NG).

If I use “limeConfig –refclk=26000000” even for the internal clock, the limeGUI will generate error:

“No Samples or timeout”.

Has anyone used external clocks for the XTRX?

2

I found reference clock frequency can be set in limeGUI(NG) under LMS7002M→SXR→Frequency Control.

Case closed