Pre-class Assignment

Please read through and complete the participation exercises under the C++ for lab 1 (and more) section of the zyBook. You can skip any “Try” exercises that require you to download RIMS for windows. Also finish up lab 0 if you haven’t completed it.

Announcements

• Lab 0 should be complete; check in with me after class if you are having issues
• Lab 1 is out and will be due in two weeks
  • Lab hours Wednesdays 1:15pm-4pm in Singer 246 (overflow Singer 247)
• Office hours: by appointment (email me if none of those times work)
  • The goal of this is to be more flexible / have more times, but I'm also open to a regularly scheduled time! Feel free to come as a group.

Learning Objectives and Outcomes

In this lecture, you will...

• listen to a short lecture on lab 1 and the associated code
• work together with Prof. Delano on an in class exercise
• start sketching out what you’ll do for the getNumber function for lab 1

By the end of this lecture, you should be able to...

• complete the first half of lab 1 (Exercises 0 – 3)
  • Note that unless you are very strong at programing you will likely not finish Exercise 3 by the end of the lab section; this is fine! I expect you to work on this outside of lab.

Lecture Content

• A couple people had questions about how the main loop in our program works
  • main has to return int for our code to compile, but if ever return from main (by explicitly returning an integer or excluding a while(1) at the end of main), our code will fault!
  • When you run code on an operating system, main returns when exiting a program. However, on a microcontroller, there’s nothing to exit to, so we get a fault.
• RIMS review
  • Built into browser; great for practicing some basics like bitwise manipulation (which you’ll do for lecture 4)
  • Also has a desktop app but Windows only (won’t be required for course but you can use it if you want)
• Lab 1 Overview
  • Git crash course
• More programming topics for lab 1
  • Header and cpp files
    • For more information about header and cpp files, see here
  • enums and struct
    • For more information about enums and structs, see here and here
  • What is the & symbol for when we use pc.write?
    • For more information about pointers, see here

Coding Example: getNumber

Let’s say for example we want to get 3 digit numbers from the serial monitor, and we ignore any characters that aren’t digits.