If I comment out "time.sleep(1.0)" in the code, then I never receive the 10 frames and hangs forever in the "while(dataWriter.FrameCount.get() < 10): time.sleep(0.1)" loop. It apears that there is a bug in the data writer's IsOpen() because the users should be able to write data to file the moment the IsOpen=True and not have to do these random sleeps between fileio operations

https://github.com/slaclab/Simple-rfsoc-4x2-Example/blob/main/software/notebooks/rfsoc_example.ipynb