We already have a working and well tested plecs standalone simulation model. As a next step we would like to transform the control logic from plecs model into VHDL code for hardware implementation. There is no floating point unit on the FPGA available - the final controller must be of fixedpoint form. Is there any way to simulate a fixed point control logic?
Our first idea:
- Write some script that implements the controller. For example a python script relying on https://pypi.org/project/pyPhix/ for fixed point operations.
- Run this python script using the "DLL" block that can be found under Library browser -> Control -> Functions & Tables.
Unfortunately we did not get this DLL block to execute any python code at all. The manual only explains the inclusion of C/C++. We could not find a MWE in python so far.
- Last step would be to transfer from python script to VHDL. This is fairly easy once all fixedpoint number format are known.
Any suggestions are warmly welcome!