This guide takes you through mbed-enabling your FRDM-KL25Z board, and getting started with the mbed online tools platform. An mbed-enabled Freedom-KL25Z board gives you:

• USB drag and drop programming
• USB Virtual COM port for serial terminal
• CMSIS-DAP interface for programming and debugging from offline tools
• Free access to the mbed online compiler, mbed C/C++ SDK, and developer community

Its really simple to get setup, and its free, so lets get started!

Updating the interface¶

While holding down the small button between the USB connectors, plug the Freedom board into the connector marked SDA - the bottom one as shown.

When the FRDM-KL25Z is plugged in this way, it will appear as a disk called BOOTLOADER which you can simply copy the update file onto.

The mbed interface upgrade file for the FRDM-KL25z is :

• mbed_if_v2.0_frdm-kl25Z

After you have copied on the file onto the FRDM-KL25Z, simply unplug it, and plug it back in again, and the the USB disk will appear and an mbed disk.

Getting Started with mbed¶

1. Connect your FRDM-KL25Z to a PC¶

Use the USB lead to connect your KL25Z to a PC, using the USB connector labelled "SDA". The status light will come on, indicating it has power. After a few seconds of activity, the PC will recognise the mbed Microcontroller as a standard USB drive.

Windows XP example	Mac OS X example

2. Click the MBED.HTM link to get logged in¶

Go to the new USB Drive, and click MBED.HTM to open it in a web browser. Choose "Signup", and create your mbed Account. This will give you access to the Website, Tools, Libraries and Documentation.

3. Have Fun!¶

Where Next?

• Introduction to your mbed FRDM-KL25Z
• Explore the mbed platform, and how it can help your prototype