AVR32777: AT32UC3L-EK Getting Started Guide Features • Powering up the Board • Setup and Description of the Touch Demo Firmware Communicating with Atmel® AVR® QTouch Studio® 4.2 or higher 1 Introduction 32-bit Microcontrollers Application Note The Atmel AT32UC3L-EK is a reference design and development system for the Atmel 32-bit AVR AT32UC3L064 microcontroller from Atmel Corporation. The kit is equipped with a rich set of peripherals that makes the AT32UC3L-EK a perfect evaluation platform.
Powering up the Board The Atmel AT32UC3L-EK offers three interfaces to power the board; from the USB VCP interface, from a battery (J3 connector on the bottom side of the board) or from an external source connected to the J2 header. If more than one power source are applied at the same time, the following priorities are used to select the current valid power source: 1. USB VCP 2. External power supply (header J2) 3.
AVR32777 Figure 2-1. Possible power input interfaces on the Atmel AT32UC3L-EK Battery connector below here J2 external power supply USB VCP Power LED SW2 switch Figure 2-2. Battery and J3 connector (bottom view detail): the side of the battery with the + sign sticker is in contact with the + sign of the J3 connector If the battery is connected while the USB power source is being used, a trickle charge of the battery occurs.
3 Touch Demonstration firmware communicating with Atmel AVR QTouch Studio Requirements: • Atmel AT32UC3L-EK rev2 • Atmel AVR QTouch Studio v4.2 (or higher) The default pre-loaded demonstration firmware on the AT32UC3L-EK allows controlling the LEDs with the on-board touch sensors. If the kit is connected to a PC with AVR QTouch Studio installed and up and running, the on-board touch events are represented visually in the Virtual Kit View tab as a solid green disc or in the QTouch Graph View tab.
AVR32777 Figure 3-2. Touch sensors and LEDs location Touch wheel UP LEDs LEFT PLAY RIGHT / PAUSE DOWN 3.1 Description of the Demonstration Whether the board is connected to a PC running Atmel AVR QTouch Studio or not, the control and the feedback of the Atmel AT32UC3L-EK demonstration firmware are described as follows: • Prologue of the demo: All 4 LEDs blink 3 times simultaneously with PWM fading effect. Then all LEDs are off. • The wheel engages the GPIO PWM to create a 256 level “bar” on the 4 LEDs.
3.2.2 Launch Atmel AVR QTouch Studio 4.2 (or higher) on the PC It will come up with a Virtual Kit View Tab containing a drawing of the Atmel AT32UC3L-EK. To get the touch events from the AT32UC3L-EK rev2, click on the “Start Reading” button if “Auto-start Reading” is not checked on. From then on, all touch events on the board can be visualized on AVR QTouch Studio (as a solid green disc in the Virtual Kit View tab, or as graphs in the QTouch Graph View tab). Figure 3-3. AVR QTouch Studio 4.
AVR32777 4 References and Further Information What to do next? What is the next step? If you want more detailed information concerning the hardware of this kit, if you want to check out all existing application notes and software running on this kit, and/or if you want to start a development whether for evaluation or rapid prototyping, the following sections lists the main available resources to actually get beyond getting started: • • • • • Schematic and BOM Application notes Software Framework Tools Supp
To be able to build the software example and program the binary and step through the code in debug mode, other tools are necessary: References to these tools are provided below here. 4.4 Tools To be able to develop applications for Atmel 32-bit AVR devices and build binaries for 32-bit AVR targets and program a 32-bit AVR device, ATMEL and its partners provide several tools supported on multiple host targets. 4.4.
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