CS107e Spring 2026

CS107e is Computer Systems from the Ground Up. Read more about the course and review answers to common questions from prospective students and enrollment information.

When and where

(discussion forum)

(RISC-V simulator)

RISC-V cheatsheet

D1-H User manual

Mango Pi pinout

Compiler Explorer

This week in CS107e

Week 7
Lecture Mon 5/11	Output ( slides, code ) Controlling gpio outputs, digital-to-analog conversion, pulse-width modulation (PWM), I2S protocol for digital sound input/output. Readings: Wikipedia entry pulse width modulation Readings for i2s protocol libextra has i2s and pwm drivers Neat tutorials from How To Mechatronics and Great Scott Electronics
Lab/assign	Lab 6: Drawing into the Framebuffer ( writeup ) Prelab to prep before lab.	Assignment 6: Graphics Library and Console
Lecture Fri 5/15	Interrupts ( ) In this first lecture on interrupts, we'll focus on the low-level mechanics and what needs to happen at the assembly level to enable and process an interrupt. Readings: RISC-V ISA Manual Vol II

See schedule for entire quarter.

Meet the team

Aditri

Ashley

Daniel

Elias

Frances

Joe

Julie

Nifemi