CN0549 - How to acquire samples continuously?

Internally the system creates a set of buffers base on the kernel buffer count set through Contexts — libiio-py 0.23.g0939f12 documentation (analogdevicesinc.github.io) This is through the ctx object property. If you don't set this it will default to 4. More information on ctx: libiio Direct Access - Analog Devices Hardware Python Interfaces 0.0.12 (analogdevicesinc.github.io)

These buffers are set up in a ring and continuously fill when the first rx() is called. As long as data is pulled fast enough there will be no drops in data. It is recommended to increase the buffer count to reduce drop probability but may increase latency.

-Travis

Thanks - very helpful info.

When I called xl.rx() in a tight loop (without the plt calls, especially the plt.pause(0.1)) it seemed that the successive calls were all returning the same buffer / identical samples.

Is there a recommended way to synchronize?  I'd like to wait for a buffer to fill with new samples, then process it right away.

rx() will block until new data is available. Data should not repeat. I did a quick test on my system and the buffers are not identical between rx() calls.

-Travis

Thanks - I'll try again.

Works for me now, of course - not sure what happened last time.