Pre-class Assignment

Please complete the participation activities under the E15 review section of the class zyBooks.

Announcements

• Please wrap up Lab 0 by Tuesday if you haven’t already; Lab 1 will be released then
• 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:

• work alongside Prof. Delano to review the basics of program flow from E15, with some adaptations for working with the new Nucleo board

By the end of this lecture you should be able to:

• write basic functions in C++
• use if statements, switch case statements, printf, basic data types, etc.

Lecture Content

<aside> 💡 For some of you, today’s content will be review. For others, it might include new information. I’ll try to thread the needle, but please ask questions if something doesn’t make sense to you.

</aside>

For more information on C++, see C++ Resources.

To follow along, duplicate your lab 0 program (right click on it in Mbed studio and choose “duplicate”). If you haven’t set up your Github yet, you can also download and extract the .zip file from here.

The code examples we do in class will be shared here after class. Feel free to remind me if I don’t post them within 24 hours. I generally will not post the answers to the in class exercises, as these are essentially warm ups for the lab questions. But if you’re stuck on them, I am happy to work through a solution with you.

/*
 * Copyright (c) 2006-2020 Arm Limited and affiliates.
 * SPDX-License-Identifier: Apache-2.0
 */

#include "mbed.h"

static BufferedSerial pc(USBTX, USBRX);

int main()
{
    char msg[] = "Echoes back to the screen anything you type\\n";
    char buff;
    pc.write(msg, sizeof(msg));
    while (1) {
        pc.read(&buff, 1);
        pc.write(&buff, 1);
    }
}

The characters we receive are what is called ASCII characters. They are a type that is a single byte called a char.