NAND TO TETRIS NOTES

The aim of this course is to build a computer from scratch. This course is divided in two parts, first part consists of hardware and second part consists of software.

Downloads for the course

Week 1:

1.1: Boolean Logic

• Learned about different gate operations, their truth tables and minimization.

1.2: Boolean functions synthesis

• Truth table to expression computation.
• Every computation can be done using just NAND gates.

1.3: Logic Gates

1.4: HDL

• Basics of HDL.
• HDL code is a static representation of gate diagram.

1.5: Hardware Simulation

• Brief description and demo of a software made by nand2tetris, for RTL simulation.
• Own HDL language is used for simulation here.

1.6: Multi-bit Buses

• Arrays in HDL.

1.7: Project 1 Overview

• Implemented various elementary gates and multibit bus gates using NAND.

Week 2:

• Mathematics of boolean algebra
• Made a Arithmetic logic unit on EDA playground
• ALU verilog code

Week 3:

3.1: Sequential logic:

• When inputs change we need to take in account the time, hence clocks are used in changing input system.
• Combinational: Out[t]=input[t]
• Sequential: Out[t]=input[t-1]

3.2: Flip-flops:

• D flip-flop records the input of previous clock stage in current output state.
• Basically, D flipflop remembers the previous stage.