For our CMPEN 371 Advanced Digital Design final project at Penn State Behrend, we made an electronic typewriter. The project name is Typin Dots. The system is made of a PS/2 keyboard hooked up to a Nexys 2 FPGA board. The FPGA board contains our built-from-scratch hardware design written in VHDL which consists of a keyboard driver and a printer driver. The FPGA board is then hooked up (via 2 PMOD ports) to a custom-built Centronics parallel printer interface which is laid out on a breadboard. The breadboard then hooks up to the printer cable which goes to the OKI Microline 320 Turbo dot-matrix printer.
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