Atmel EVK2160A User manual

10623A–AT42–06/09
USB Plug-in Card for the EVK2160A
Demonstration Kit
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User Guide

ii USB Plug-in Card User Guide
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USB Plug-in Card User Guide 1-1
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Section 1
Overview and Procedure
1.1 Introduction
This application note details how to set up the EVK2160A standalone evaluation board to connect to a
PC using the USB plug-in card, in order to run EVK2160A demonstration software.
New users are recommended to work through the Quickstart guide to familiarise themselves with the kit
and software before reading this User Guide.
For detailed information regarding these products, including the latest datasheet and demonstration
software, go to www.atmel.com.
Note: This User Guide should be read in conjunction with Software GUI for the EVK2160A
Demonstration Kit User Guide.
1.2 Getting Started
1.2.1 Components Required
The following components are required:
1 x EVK2160A Evaluation Board
1 x USB Plug-in Card 9206
1 x Soldering Iron
1xSolder
1xTweezers
Wire to fit
1.2.2 EVK2160A Evaluation Board
The EVK2160A Evaluation Board comprises one AT42QT2160-MMU (QT2160 ) with 16 channels; these
are configured as 8 capacitive sensing keys and one slider, made of a further 8 capacitive sensing keys
(see Figure 1-1 on page 1-2).

Overview and Procedure
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Figure 1-1. EVK2160A Evaluation Board
1.2.3 USB Plug-in Card
The USB plug-in card enables standalone evaluation boards such as the EVK2160A to connect to PC
applications through a USB port, using I2C-compatible communications (see Figure 1-2).
Figure 1-2. USB Plug-in Card
3
5
6
7
8

Overview and Procedure
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1.3 EVK2160A Preparation
The USB plug-in card is used to supply external power to the unit. To protect the unit from possible
damage through cross-powering of external and battery power:
1. Slide out the EVK2160A PCB from the moulded case (see Figure 1-3).
2. Remove the battery from the EVK2160A evaluation board (if fitted).
3. Remove diode D13.
4. Remove the 0resistor from D12 and fit to D13.
Figure 1-3. EVK2160A Adaptations
1.4 USB Plug-in Card Setup
To communicate and provide power, see Table 1-1 for the wires to attach between the USB plug-in card
and the EVK2160A:
Note: * Pin one on J2 is denoted by a square pin (see Figure 1-4 on page 1-4).
Table 1-1. Connections Between EVK2160A and the USB Plug-in Card
USB Plug-in Card Connector J2 Pin* EVK2160A
3 CHG
5SDA
6SDL
7 D13/TP17
8 - ve Pin or GND pad

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Figure 1-4. USB Plug-in Card and EVK2160A Connections
1.5 EVK2160A and USB Plug-in Card Assembly
To assemble the EVK2160A and USB Plug-in Card:
1. Slide the USB plug-in card into the battery slot on the EVK2160A PCB (see Figure 1-5).
Figure 1-5. USB Plug-in Card and EVK2160A Connections
2. Slide the EVK2160A assembly into the moulded case (see Figure 1-6 on page 1-5). The assembly
setup for connection to PC software is now complete.
3. Refer to the Software GUI for the EVK2160A User Guide for details of the software GUI interface.

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Figure 1-6. USB Plug-in Card and EVK2160A Setup Complete

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Figure 1-7. EVK2160A Demonstration Board Schematic (sheet 1 of 71078-1)

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Figure 1-8. EVK2160A Demonstration Board Schematic (sheet 2 of 71078-1)

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Figure 1-9. USB Plug-in Card Schematic