Vhdl, Fpga, Programming, Hardware, Getting Started.
print some errors. $ ghdl -a file_testbench.vhd Same but for testbench. $ ghdl -r file_testbench — vcd=wave.vcd Run the entity declared in file_testbench.vhd (in this case file_testbench). NOT the vhd file. This should generate your wave simulation. Open wave.vcd with gtkwave. Beautiful isn’t it ?