Hi, I'm trying to blackbox a PFB / FFT combination (following the instructions at https://casper.berkeley.edu/wiki/images/a/a4/Black_box_memo.pdf), and am running into a problem.
The compilation gets to the "Compiling: Propagating sample times" step and stays there forever. There are two short bursts of CPU activity when the "Propagating sample times" step starts, but the CPU activity then drops away to zero and stays there. After a day or so I lose patience and kill the process. No error messages are printed to the screen other than a warning about the model not having continuous states, use VariableStepDiscrete instead, etc. Explicitly specifying a discrete solver, as this warning suggests, makes no difference. I am able to black box simple models that use only Xilinx basic elements, so I know that the toolflow is working. However, any model that includes either the pfb_fir_real or the fft_wideband_real blocks from the CASPER DSP Blockset encounters the problem described above. The particulars of my setup: ska-sa mlib_devel, commit a8c43a8f90 64 bit linux (redhat) Matlab 2012b Xilinx 14.3 Has anyone come across this problem before? Cheers, Oliver ------ Oliver King Senior Scientist Astronomy Department, Caltech +1-626-395-4197
