This project is a port of the Net-SID to the CycloneIV EPCE6.
More more informations, plz take a look into his documentation & read.me
110 - Audio Left
112 - Audio Right
It uses the on board serial to communicate with your computer.
86 - Audio Left 84 - Audio Right
87 - RX 85 - TX
88 - Clock 89 - !Reset
For this board you'll need an USB<->Serial/UART adaptor.
Plz change the speed according to your USB<->Serial cable in the server_v2_HybridSID - handshake and async.v