I have a simulink block as follows
I want to generate hdl code for the whole model. Gb, Ib, Kb and Pb are my filters and I am designing fractional sample rate converter. But it only generates hdl code for filter not for up-sampling and down-sampling process. I want to do that because my filter length is 391 and it is very hard to write testbench manually for such a big filter. Please help!