AT08774: SAM D20 PTC with I2C Slave APPLICATION NOTE
This implementation is useful in applications where the Host MCU need to control various touch setup parameters over I2C. For instance, applications that target low power consumption can adjust clock prescaler and scan interval. Applications that target best noise performance can adjust noise counter options dynamically.
The firmware solution is implemented using two SAM D20 Xplained Pro boards, one acting as User board and the other for QDebug which streams touch data to QTouch® Analyzer.
The demonstration program is implemented in C and supports GCC Compiler used by Atmel Studio 7.
●Features
■Host MCU based touch parameter control
■ I2C in slave mode
■Hardware Touch Acquisition using PTC
■Demonstration Program
■Uses I2C driver in ASF
■QTouch Composer generated touch project
■Utilizes SAM D20 Xplained Pro
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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04/2016 |
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Rev.42325C |
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1.1 MB |
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