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Figure 37: Statusbar.............................. 30 Figure 38: Statusbar with error message ....................... 30 Figure 39: Statusbar with SPM file......................... 30 Figure 40: Sensor status for SX8634/44EVK and SX8634/45EVK................31 Figure 41: Example BT0 and BT2 touched ......................32 Figure 42: Example slider touched......................... 32 Figure 43: Example slider move high and move low....................
SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 1 Introduction This document describes the evaluation kits of the: - SX8634 (proximity, buttons and slider) - SX8635 (proximity, buttons and wheel) - SX8644 (buttons and slider) - SX8645 (buttons and wheel) In this user guide the term EVK refers to the SX8634EVK, SX8635EVK SX8644EVK and SX8645EVK The SX863x and SX864x family (see references [1] to [13]), is an ultra low power, fully integrated 12 (or 8) -channel solution for capacitive touch-buttons, slider and wheel and proximity applications with enhanced LED drivers.
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User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING SX863x and SX864x main features include: Proximity Sensing (for SX863x Family) Complete 12 Sensors Capacitive Touch Controller for Buttons and Slider Pre-configured for 6 Buttons and a Slider (SX8644), Wheel (SX8645)
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 2 Getting Started 2.1 Kit Contents As illustrated in the figure below, the Evaluation kit is composed of: SX8634EVK, SX8635EVK , SX8644EVK, SX8645EVK board with 2mm acrylic glass overlay. CDROM including all necessary PC software and documentation (requires min. Windows XP)
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 2.2 Installation/Quick Start 1- Put the CDROM in your computer. If the installation does not start automatically, launch “SX863xSX864xEvaluationKitSetup.exe” manually. 2- Follow installation guidelines until the process is completed. Please note that .NET Framework 3.5 and the FTDI USB driver will be automatically downloaded/installed if not detected on your computer.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 5: SX863x EVK LEDs and sensors Moving a finger on the slider or wheel (#12) will enable the green LEDs (#11), D6 and D7 depending on the direction of the finger.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 2.3 GUI tooltips and Help All GUI buttons, LEDs, scroll bars, icons have tooltips which show briefly the functionality. The tooltips can be activated by the user by moving the mouse over the desired area (see example I2C address selection).
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 3 Hardware Description The EVK boards are described in this chapter. Please refer to the schematics and layout provided at the end of the document for more details about the exact hardware implementation.
The USB connector allows the EVK to be connected to a PC from which it will get its power and configuration/control commands via the dedicated software. 3.1.2 VREG (#2) VREG is fixed to the typical operating voltage of 3.3V using the Semtech Sc153 voltage regulator, ensuring correct I2C communication between the SX863x/4x and the FT2232D. 3.1.3 EEPROM (#3) FT2232D is associated to an EEPROM which keeps the FTDI chip’s parameters when power is turned off.
Eight green LEDs (D0..D7) are connected to the eight GPIOs of the SX8644 or SX8645 for visual feedback. Seven green LEDs (D1..D7) and one orange LED (D0, proximity) are connected to the eight GPIOs of the SX8634 or SX8635 for visual feedback.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 4 Guided Tour of the GUI/EVK 4.1 Introduction The paragraphs in this chapter allow the user to get to know the basics of the EVK and the SX863x/4x and to get the user acquainted with the GUI and the EVK and the way to use them.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 14: GPIO tab modified (i) Change the Dec time (default 2ms) and OFF delay (default 1.0s) to OFF. Each modification on this tab is immediately written to the EVK. After this is done the LED will turn off directly after a release.
1). 4.5 Sensors for buttons, slider or wheel The SX8634/44 and SX8635/45 start up with six buttons and six sensors in the slider or wheel. This can be easily changed in the Cap Sensor tab. The configuration below shows a example which uses a slider with 5 sensors (6 per default), the buttons 0, 2, and 4 were turned off to save power consumption and button 6 was enabled.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 17: Cap Sensors modified The GUI shows at the right side the modified users configuration. Green icons are enabled sensors and the grey icons are disabled sensors. Rev 0.9 – September 2010...
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 4.6 Monitor mode Touching a sensor does not always mean the EVK will consider this as a touch. It might e.g. be that the touch is only partly on the sensor area or maybe the overlay material is replaced by something thicker.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 19: Monitor tab The left graph shows the current values of all enabled sensors. The right graph shows the sensor values over time (like an oscilloscope). - select button 0 in the lower right corner Figure 20: Select thresholds, hysteresis This will superpose the detection threshold and hysteresis (yellow and green lines) on the graphs.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 21: two successive touches on button 0 - click on the stop button on the Cap Sensor tab to go back to normal mode. 4.7 Sensitivity The sensor sensitivity needs to be adapted to the thickness of the overlay, permittivity of the overlay, the size of the buttons and detection thresholds.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 23: sensitivity (0) of button 0, sensitivity (1) of button 0 The above figures show that button 0 requires at least a sensitivity of 1 to pass the detection threshold and...
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.2 File Menu File menu contains general purpose functions. Most of them can also be accessed on the toolbar by clicking directly on the icon. Figure 26: File Menu 5.2.1 Connect/Disconnect This item is used to connect/disconnect the GUI to/from the EVK.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 28: SPM File Example (end) 5.2.3 Save SPM This feature saves the current SPM from the SX863x/4x in the currently opened SPM file and overriding it. after confirmation by the user.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.3.3 Operating mode This item is used to change the operating mode of the EVK. This feature is also available directly on the toolbar. Figure 30: Operating Mode 5.3.4 NVM burn This item is used to write permanently the SPM content in the NVM.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.4 Help Menu 5.4.1 Overview Figure 33: GUI Help Menu 5.4.2 Help This item shows or hides the help window. The help window shows useful information when the user moves the mouse over GUI items, registers etc…...
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.5 Toolbar The toolbar allows the user to choose rapidly an action without browsing through the file, action and help menu. The description of the items can be found in the previous menu sections.
The status bar shows useful information on the the status of the GUI and the EVK. Figure 37: Statusbar The product field shows the detected product on the EVK (SX8634, SX8635, SX8644 or SX8645). The SPM field shows the origin of the SPM. This will be QSM, NVM1, NVM2 or NVM3.
SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.7 Sensor Status The sensor status shows buttons and a slider for the SX8634/44EVK and buttons and a wheel for the SX8635/45EVK. Figure 40: Sensor status for SX8634/44EVK and SX8634/45EVK In the case of the SX8634/44 six green buttons are shown and six chevrons for the slider.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 41: Example BT0 and BT2 touched If the slider is touched strongly enough then the position of the finger on the slider is shown by a small red bar and by the position value (position is 31 in the example below).
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 43: Example slider move high and move low If the wheel is touched strongly enough then the position of the finger on the wheel is shown by a small red circle and by the position value (position is 39 in the example below).
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.8 GUI tabs The GUI uses seven tabs: - General - Cap Sensors - Buttons - Slider/Wheel - Mapping - GPIO - SPM/I2C The content of the tabs allow the user to change the configuration of the SX863x/4x.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.8.2 Cap Sensors tab Figure 47: cap sensors tab The top of the cap sensor tab is dedicated to the parameters associated to the sensors pins CAP0 to CAP11of the SX863x/4x.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING By clicking on the monitor icon the GUI opens the monitor window Figure 49:monitor window The monitor window shows the cap sensor (difference) data (see datasheet for details). The left side of the window (graph header ‘All’) shows the current value of all enabled cap sensors.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Thresholds can be superposed on the graphs by selecting buttons, wheel or slider. Figure 51:example: super pose thresholds of button 0 Rev 0.9 – September 2010 www.semtech.com...
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING Figure 52:graph pop up window By a right button mouse click on the graph a pop up window appears which allows the user to copy, save and print the graph. Furthermore the user can zoom or un-zoom into specific graph regions of interest.
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.8.3 Buttons tab Figure 53: buttons tab The buttons tab allows the user to change the configuration of the buttons. Rev 0.9 – September 2010 www.semtech.com...
SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.8.4 Slider/Wheel tab Figure 54 slider or wheel tab The slider or wheel tab allows the user to change the configuration of the slider (SX8634/44EVK) or the wheel (SX8635/45EVK). Rev 0.9 – September 2010 www.semtech.com...
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.8.5 Mapping tab Figure 55 mapping tab The mapping tab allows the user to change the configuration of the mapping. Rev 0.9 – September 2010 www.semtech.com...
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.8.6 GPIO tab Figure 56 GPIO tab The GPIO tab allows the user to change the configuration of the GPIO either through the SPM or through the I2C registers. Rev 0.9 – September 2010...
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING 5.8.7 SPM/I2C tab Figure 57 SPM/I2C tab The SPM/I2C tab allows the user to change the configuration on a lower level as the previous tabs. The I2C registers can be directly written (white boxes). As soon as data is entered the data becomes red (indicating that the GUI is being updated but not yet the EVK) and is written to the EVK after the ‘Enter’...
User’s Guide SX8634/35/44/45 Evaluation Kit ADVANCED COMMUNICATIONS & SENSING The SPM is shown in this tab as hexadecimal values. Experienced users can enter data here directly without passing through the previous described tabs. The GUI assures that entering data in this tab or in the other tabs remain coherent.
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