M68k

m68k

A Motorola 68000 computer. It uses a Lattice FPGA to control the CPU and interface with the peripherals. It is designed to be standalone, with a PS/2 port for input and a VGA port for display output.

Contributors

• Avery Bartnik
  • Assembly Programming
  • README
• Erik Duxstad
  • Schematic
  • PCB Layout
  • Ordering PCB
• Jack Sweeney
  • Schematic
  • Assembly Programming
  • FPGA Verilog
  • Simulation
• Michael Wagner
  • Schematic
  • PCB Layout
  • Ordering Parts

What We Did

1. Design schematic for 68000 computer
2. Design and layout the PCB
3. Order the PCB and parts
4. Wrote Verilog HDL for the FPGA
5. Set up a RTL simulator for the whole computer design
6. Wrote an assembly program in the simulator that displays text using the serial port

What We Will Do

1. Solder the parts to the PCB
2. Synthesize the verilog and flash to SPI Flash to configure FPGA
3. Interface with the board via the serial port
4. Run programs on real hardware!

Long-Term Improvements

1. Enable on-board SRAM
2. Configure toolchain to allow for C programming
3. Add scheduling interrupt
4. Install Linux
5. Set up VGA peripheral
6. Set up PS/2 peripheral
7. Set up SD Card peripheral
8. Make MMU on FPGA for Linux

Gallery

PCB

PCB Layout

FPGA

SRAM

Schematic