Tx without Calibration

Projects LimeSDR
1

As I understand, LMS_SaveConfig should save all parameters from registers of LMS.

In order to avoid to calibrate at each time, after setting all parameters once (frequency,SR,Calibrate) I save with LMS_SaveConfig.
For next Tx, I load all parameters with LMS_LoadConfig. It nearly works, but it seems that IQ calibration is not saved as I could see a DC offset on the spectrum.

Is it the normal way of using it, is there an other method to handle it ?

Here are the results :
First transmission with calibration and SaveConfig
limecalib

2nd transmission without Calibration but with LoadConfig
limewithoutcal

2

You’re right, the DC offset gets loaded from file into the register, but it does not take effect. LMS_LoadConfig needs to be updated to include some bits flipping to actually further load the values from registers into where they make effect.

3

Ok, thanks for confirming this issue.

4

Added an issue: