Basic start with MyHDL
folders:
-src: you can find some block (or module) definition
-test: you can find usage for blocks, some tests are unitary, others use more blocks
makefile options:
make upload -> translate myHDL in verilog, sintesize, and load on fpga
make test -> run test in myHDL
make clean -> clean
this requires having icestorm http://www.clifford.at/icestorm/ and myhdl http://www.myhdl.org/start/installation.html installed