Skip to Content

Guide to Connect to Microchip 2D Touch Surface Utility for Atmel START QTouch Library

Last modified by Microchip on 2023/11/09 08:55
Contents

The Microchip 2D Touch Surface Utility is a PC tool that allows you to visually debug data from a touch surface project. This article provides guidelines on how to use this tool.

The Microchip 2D Touch Surface Utility can be downloaded from the Microchip website.

Connection Overview

The debug data is sent by the touch MCU through the debug interface. The debug data can be connected to a PC through the UART-RS232 interface or UART-USB interface.

Using COM Port

Connection diagram for using the COM port for connecting to the 2D touch surface utility

Using USB CDC

Connection diagram for using the USB port for connecting to the 2D touch surface utility

​

Note: EDBG enumerates as USB-CDC.

Back to Top

Connecting to Kit

Open Microchip 2D Touch Surface Utility. The interface selection page opens.

Select UART and the correct COM port.
​

Note: At this time, only UART interface is supported.

Enter the correct baud rate.
​

Note: Default baud rate is 38400 for AVR and 115200 for SAM.

Click Apply.

Connection setup in the 2D touch surface utility

Debug window opens as follows:

The debug window in the 2D touch surface utility

Back to Top

Configure Touch Page

By default, the Configure Touch tab opens as shown in the accompanying image. Using text and graphical formats, this page displays touch delta value, threshold, and position.

Touch sensor page in 2D touch surface utility

You can update parameters like filter level and the threshold of horizontal and vertical channels using the Primary Settings window in the Configure Touch tab as shown in the accompanying image.

The "Primary Settings" box in the Configure Touch tab of the 2D touch surface utility

After updating the desired parameter, click Write to Controller.

Note: These changes are stored in non-volatile memory

Back to Top

Configure Gestures Page

The Configure Gestures tab displays gesture parameters in graphical format.

The "Configure Gestures" page of the 2D touch surface utility

You can update gesture parameters such as distance and timings using the Primary Settings window in the Configure Gestures tab as follows:

The "Primary Settings" box for the Configure Gestures page of the 2D touch surface utility

After updating the desired parameter, click Write to Controller.

Note: These changes are stored in non-volatile memory. Information on gesture parameters can be found on the "Glossary of Touch Terms" page.