How to modify the PL part of Pluto

FCAG_123 said:

Assuming I already have the HDL code of the filter.

Have you integrated this into the reference design?

What stage do you need help with?

-Travis

No, i made the filter with hdl coder in Matlab (i need to add it inside the vivado project for Pluto). Then, which are the nexts steps?

Best

There is an example project here that shows adding IP to a similar project (Pluto's design is slightly different): https://wiki.analog.com/resources/fpga/docs/hdl/fmcomms2_fir_filt

Vivado will produce a HDF file which you can modify the makefile in the firmware repo to use:https://github.com/analogdevicesinc/plutosdr-fw/blob/master/Makefile

You could replace this line: https://github.com/analogdevicesinc/plutosdr-fw/blob/master/Makefile#L135

with this to use your built HDL:

bash -c "cp <path of custom hdl output>/system_top.hdf $@"

-Travis

Thanks Travis.

So, after that ( do the "make" with the new .hdf) , which are the next steps ? I saw that /u-boot-xlnx and /build was modify.

If im okay, a new frmware image must be produced containing the custom bitstream. In the /build directory ,where the "make" command  produce both .dfu and .frm images.

Thank you for your time.

First build your custom HDF file, then pull down the firmware source. Update the makefile as suggested, then run make. The generated firmware will contain your custom bitstream.

-Travis