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© Freescale Semiconductor, Inc., 2005. All rights reserved

Freescale Semiconductor

MC33794SIUG

User’s Guide

Rev. 1.0, 09/2005

MC33794 Touch Panel System 

 

Using E-Field Sensor Setup 
Instructions

Reference Design Documentation for RDMC33794

This document contains information on a new product. 

 

Specifications and information herein are subject to change without notice.

Summary of Contents for MC33794

Page 1: ...C33794SIUG User s Guide Rev 1 0 09 2005 MC33794 Touch Panel System Using E Field Sensor Setup Instructions Reference Design Documentation for RDMC33794 This document contains information on a new prod...

Page 2: ...gn Reference manual for RDMC33794 Application note AN1985 Touch Panel Applications using The MC33794 E field IC CONVENTIONS This document uses the following conventions Term or Value Definition Exampl...

Page 3: ...icrocontroller s AD channel is feed directly from the MC33794 output pin LEVEL or if the output signal is first amplified by the on board op amp with adjustments in offset and amplitude and then feed...

Page 4: ...d above the application should be running LED s 7 segments displays and audio transducer will provide feedback as the system detects a pressed condition within the touch pads PROGRAMMING SETTINGS PROG...

Page 5: ...uld appear use the TeraTerm File Send File option to send the S19 file a progress dialog will show up 8 Once the code is downloaded the p rogram w ipe e x it message will appear again press x and the...

Page 6: ...the MCU Flash will be programmed 5 the following message should appear press yes button to program flash memory 6 Once the flash programming process is finished unplug the MONO8 connector and set the...

Page 7: ...p_Level Amplifier stage output MC33794 s output with adjustment in offset and amplitude Jumper name Functional description JP1 Position 1 2 Connects microcontroller A D input channel 3 to E field outp...

Page 8: ...of its products for any particular purpose nor does Freescale Semiconductor assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all...

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