This wiki page is dedicated to FTF 2014 mbed Hands-On Workshop.

Prerequisites¶

1. Registration - Sign up or login to mbed. Use htm file on MSD drive (the drive is named MBED) in your computer once board enumerates. Or visit mbed login link here
2. Add board to your supported platform. FRDM-K64F platform page
3. Get familiar with the online compiler, http://mbed.org/handbook/mbed-Compiler

Lab¶

All Labs completed exercises will be shared upon request or after the class. Import will be carried out in the same window!

Lab 1 - Hello world (20 minutes)

• Input/Output and Serial
  • Challenge 1: Change a text on the console based on the button pressed (SW2 and SW3 buttons).
  • Challenge 2: Change the LED color (use 2 separate LED objects - only one will be on at the time) depending on the button pressed.
  • Challenge 3: Change baudrate to 115200. Echo 5 characters which are typed on the terminal application as soon as SW3 is pressed.
• Useful links
  • DigitalOut class
  • DigitalIn class
  • Serial class
  • Terminals

Link to the completed Lab 1:

Lab 2 - Interrupts and timer (25 minutes)

[Repository '/teams/Freescale/code/FTF2014_lab2/' not found]

• Interrupts and timer
  • Challenge 1: Add timer to toogle LED1 every 2 seconds. By pressing SW2 button, invoke a function which changes timers frequency as follows: each button press should lower the frequency by 100ms, starting from 1000ms down to 500ms and wraps again to 1000ms - frequency interval <0.5, 1.0>.
    
• Useful links
  • InterruptIn class
  • Ticker class

Link to the completed Lab 2:

Lab 3 - USB functionality (35 minutes)

• USB Keyboard/Mouse
  • Challenge 1: Draw a simple house in a paint program using USBMouse. An example is shown below:
    
  • Challenge 2 (optional): Firstly, open two notepads (split screen or just next to each other) on PC. Using USBMouseKeyboard, insert a different text to each notepad window. Every second line should use only capital letters in the notepad on the right side. A hint (to go to the end of file - CTRL+End on windows machines).
    
• Useful links
  • USB Device
  • USBMouse class
  • USBMouseKeyboard class

Link to the completed Lab 3 part 1:

Link to the completed Lab 3 part 2:

Lab 4 - SD card (40 minutes)

• SD card with the file system.
  • Challenge 1: Create 2 folders with names test1 and test2. In each folder, create one file (1.txt in test1, 2.txt in test2). List all directories. Then move 2.txt from test2 to test1 folder, remove test2 and list directories on sd card.
    
• Useful links
  • SD card file system
  • FAT file system

Link to the completed Lab 4:

Lab 5 - mbed RTOS (30 minutes)

• The introduction to mbed RTOS.
  • Challenge 1: Add new thread which will wait for a signal. The signal will be set from the SW2 interrupt (pressed button = fall). In the main thread, print how many times was sw2 pressed in the last 5 seconds.
    
• Useful links
  • RTOS

Link to the completed Lab 5:

How to access complete labs

Go to the Code tab here on the Freescale teams page where you can find all of them.

There's another way how to import any program to the workspace if you know the URL. To access all labs complete version, please right click on the name of the lab, and copy the address. For the lab is for example it's http://mbed.org/teams/Freescale/code/FTF2014_lab1/ . The next step is to open the compiler, right click in the workspace on Programs, select "Import from URL" from the drop-down menu, add there http://mbed.org/teams/Freescale/code/FTF2014_lab1_complete (remove the ending slash and add _complete). You can access all the available labs with all challenges completed.