This board is designed to be a FPGA expansion board using the standard Altera/Tersaic 40-pin header. It adds a variety of legacy PC interfaces to an FPGA development board to aid in implementing and demonstrating retro PC hardware. Adds the following interfaces: - One HDMI Video Port - One Serial Port (COM port) - One Parallel Port (LPT port) - Two PS/2 Ports (for Keyboard and Mouse) - One MIDI / Joystick Port - One Floppy Drive Interface - One SDCard Port - One USB to RS232 Interface - One PC-Speaker - One Audio DAC (I2S) PCB has been assembled, only initial testing is complete. Testing Status: - HDMI - Working (after the links across the ESD IC are applied) - PC-Speaker - Working (after replacing C59 with the 33R resistor) - Audio DAC - Working - SDCard - Working - USB to RS232 Interface - Working - LPC Expansion IC - Still working on getting the LPC interface to work... Known Issues: - PC Speaker needs capacitor C59 replacing with a 33R resistor so that it sounds (simple bug) - For HDMI, the TDMS signals are not piped through the HDMI ESD protection IC (the datasheet doesn't actually specify the ESD IC acts this way, it's just implied in the layout example). The IC requires traces to connect externally. This can be bugged using 8 wire links across the ESD protection IC (otherwise the HDMI PHY is not connected through to the HDMI Connector).