... The fpga code has been modularized so that different signal processors can reuse the verilog code of the different modules. ... Module constants are normally defined in module/src/Makefiles.def . ... dlpf/ : Code for DLPF module. src: Makefile.defs, mkdlpf perl script, top.v . ... plinth : holds code that is not included in sp. src: verilog code for plinth as well as Makefile.defs. build: this directory has an .edn and .edf file but no Makefile? . ... dlpf: Makefile to build dlpf module for sp . ...