The Freescale Freedom platform is an ultra-low-cost development platform enabled by the Kinetis-L Series KL0x, KL1x and KL2x energy efficient microcontroller families built on ARM
Cortex
-M0+ processors.
Setting Up Your Board
For this example I used the popular mbed.org integration to program the Freedom board as it is quick and easy to set up plus it’s FREE.
You need to:
- Hold down the Reset Button between the two USB Connectors
- Plug one end of your USB cable into your computer and the other in to the USB port labelled SDA on the Board
- Once you have done this the KL25z will pop up as BOOTLOADER in your file system
- Copy this file from mbed.org to the root of this new drive
- Disconnect the USB cable from the board and plug it straight back in again and the drive will now pop up as MBED
- Open the drive and click on the MBED.HTM
- Login or Sign up and you now have access to all the tools your need to get started with the KL25z
Let’s start coding
Now for the fun part,
- Visit mbed.org/compiler and log in if you need to.
- Select New > Program and give your program a name e.g. KL25zHelloWorld
- The following “Hello World” Code will be placed into the main.cpp file
#include "mbed.h"
DigitalOut myled(LED1);
int main() {
while(1) {
myled = 1;
wait(0.2);
myled = 0;
wait(0.2);
}
}
4. Click Compile and Save the downloaded file (filename.bin) onto the MBED drive on the KL25z Board
5. Press the Reset Button and you will see the RGB LED Flashing.
I hope this helps you get started.
