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=== Description ===
The Touchscreen interface is available on the Evaluation Kit at the connector ''J20''
This interface can be configured to work with 3.3V (default) or 5V power and signal levels.
[[File:{{{nome-som}}ETRA-EVB-Touchscreen-connector.png|thumb|center|500px|Touchscreen connector]]
===Signals ===
=== Device usage ===
The simplest tools for touch screen management are the <code>tslib </code> library and <code>ts_tools </code> utilities. To calibrate the touch screen, the <code>ts_calibrate</code> command line tool is available. After calibration, the touch screen can be tested using the graphical <code>ts_test</code> utility or the <code>ts_print</code> command line tool.
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[[Category:ETRA]]