I am new to pynq and educating myself following tutorials on this web site. I tried tutorials creating overlays Adder and FIR_filter. In each case when I open the overlay in python and list the content of I do not see any IP s.
Load the overlay
overlay = Overlay(’/home/xilinx/pynq/overlays/fir_accel/fir_accel.bit’)
Default documentation for overlay /home/xilinx/pynq/overlays/fir_accel/fir_accel.bit. The following
attributes are available on this overlay:
Hierarchies ----------- filter : pynq.overlay.DefaultHierarchy . . .
Everything looked fine in Vivado .There were no error messages when generating the bitstream ( (there were few warnings which looked harmless) and reported that the bit-stream was generated successfully. But after uploading .bit and .tcl files to PYNC board and looked at them in Jupyter notebook, always see the same null result.
Any help resolving this issue greatly appreciated. I tried multiple times using Vivado 18.3 and 19.2, and have spent several days struggling find what is going wrong.Thanks.