Summary
In this chapter, we’ve explored the PS/2 keyboard interface by creating an interface that can write to and receive data from the keyboard. With the PS/2 ready to use, we’ve then taken pieces from the last few chapters: the VGA to display our data, the temperature sensor to provide some numerical output, and the PDM interface so we can add something more graphics oriented. You’ve now completed the journey from basic logic gates to coding something that can display text and graphics on the screen. It’s possible to go much further with writing pure SystemVerilog, but first, we will explore some more external interfaces using PMODs and then implement a Xilinx NIOS processor.
