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ADVANCED COMMUNICATIONS & SENSING

Rev 0.9 – September 2010

19

www.semtech.com

User’s Guide

SX8634/35/44/45 Evaluation Kit

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.

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Summary of Contents for SX8634

Page 1: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 1 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit SX8634 35 44 45 Evaluation Kit User s Guide...

Page 2: ...ors 12 15 3 2 Default EVK hardware settings 15 4 Guided Tour of the GUI EVK 16 4 1 Introduction 16 4 2 Active Doze Sleep Mode Wake up 16 4 3 LED fading on GPO pins 16 4 4 LED mapping on GPO pins 18 4...

Page 3: ...SENSING Rev 0 9 September 2010 3 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit 5 8 4 Slider Wheel tab 40 5 8 5 Mapping tab 41 5 8 6 GPIO tab 42 5 8 7 SPM I2C tab 43 6 Schematics 45 7 La...

Page 4: ...23 sensitivity 0 of button 0 sensitivity 1 of button 0 23 Figure 24 SX8634 44 GUI Overview 24 Figure 25 SX8635 45 GUI Overview 24 Figure 26 File Menu 25 Figure 27 SPM File Example begin 25 Figure 28...

Page 5: ...ic page 2 2 50 Figure 65 SX8635EVK schematic page 1 2 51 Figure 66 SX8635EVK schematic page 2 2 52 Figure 67 SX8644EVK top layer 53 Figure 68 SX8644EVK mid layer 1 53 Figure 69 SX8644EVK mid layer 2 5...

Page 6: ...d 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 driver...

Page 7: ...h Overlay Materials up to 5mm thick Extremely Low Power Optimized for Portable Application 8uA typ in Sleep Mode 80uA typ in Doze Mode Scanning Period 195ms 260uA typ in Active Mode Scanning Period 30...

Page 8: ...d 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 require...

Page 9: ...nloaded installed if not detected on your computer 3 For SX864x only Assure the switch 5 is always in the left position 4 Set the ON OFF switch 4 to OFF left position 5 Connect the EVK board to the PC...

Page 10: ...ging the default configuration of the EVK the GUI needs to be started 9 Launch Sx863xSX864xEVK from PC Start menu 10 The EVK will be connected automatically and the following window will appear In cas...

Page 11: ...D COMMUNICATIONS SENSING Rev 0 9 September 2010 11 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 7 button BT0 touched SX864x or proximity detected Sx863x The EVK and GUI are opera...

Page 12: ...X8634 35 44 45 Evaluation Kit 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 th...

Page 13: ...e 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 3 1 Ov...

Page 14: ...x and at the same time the red power indication LED 6 3 1 5 Test Switch 5 Only applicable for SX864x This switch is for Semtech internal use and needs to be always in the left position The EVK will no...

Page 15: ...ed 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 3...

Page 16: ...he EVK the SX863x 4x will enter Active mode and sensor pins will be sensed every 30ms The user can change the operation mode by clicking on the icons The actual operation mode is then highlighted as s...

Page 17: ...fied 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 relea...

Page 18: ...ed In the example above LED D0 is mapped to Button 1 default is button 0 and LED D1 is mapped to button 0 default is button 1 4 5 Sensors for buttons slider or wheel The SX8634 44 and SX8635 45 start...

Page 19: ...tember 2010 19 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 17 Cap Sensors modified The GUI shows at the right side the modified users configuration Green icons are enabled senso...

Page 20: ...the overlay material is replaced by something thicker The EVK parameters are set such that sensor area overlay material and thickness are operational In case the user changes the hardware or just need...

Page 21: ...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...

Page 22: ...resholds The following shows a typical example of changing the sensitivity of the sensors using the EVK If the user touches button 0 as in the previous section then the sensor values are relatively la...

Page 23: ...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 hysteresis green If the sen...

Page 24: ...COMMUNICATIONS SENSING Rev 0 9 September 2010 24 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit 5 GUI Description 5 1 GUI Overview Figure 24 SX8634 44 GUI Overview Figure 25 SX8635 45 GUI...

Page 25: ...om the EVK The icon and name of the menu item dynamically changes depending on the current connection state This feature is also available directly on the toolbar 5 2 2 Open SPM The GUI offers the pos...

Page 26: ...andard derivate of the Save SPM feature used to save the current SPM to a different name 5 2 5 Exit This item closes the GUI 5 3 Action Menu Figure 29 Action Menu 5 3 1 Refresh This item is used to re...

Page 27: ...e SPM content in the NVM This feature is also available directly on the toolbar The NVM can be burned three times so the burn feature needs to be selected with precaution By selecting the item the use...

Page 28: ...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 This feature is also available directly on the tool...

Page 29: ...ough the file action and help menu The description of the items can be found in the previous menu sections Figure 35 Toolbar The I2C address is showing the address the GUI uses to communicate with the...

Page 30: ...lculated by the GUI and if that CRC corresponds to the CRC of the EVK A green LED shows both CRCs are identical An orange LED shows that the CRCs are different Clicking the refresh item will synchroni...

Page 31: ...44EVK and SX8634 45EVK In the case of the SX8634 44 six green buttons are shown and six chevrons for the slider In the case of the SX8635 45 six buttons are shown and the wheel is composed of six segm...

Page 32: ...hown by a small red bar and by the position value position is 31 in the example below If the slider is not touched the small red bar disappears while the GUI maintains the last touched position Figure...

Page 33: ...n value position is 39 in the example below If the wheel is not touched the red circle turns into grey while the GUI maintains the last touched position Figure 44 Example wheel touched Two purple indi...

Page 34: ...d in detail in the datasheets of the SX863x 4x family 1 to 13 Each tab shows specific configuration data which can be changed by the user The GUI assists the user by entering high level parameters so...

Page 35: ...sensors pins CAP0 to CAP11of the SX863x 4x The bottom part of this tab allows the user to monitor noise estimators for each pin The monitor is enabled by choosing the Start button The small monitor ic...

Page 36: ...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 The right side of the...

Page 37: ...ENSING Rev 0 9 September 2010 37 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Thresholds can be superposed on the graphs by selecting buttons wheel or slider Figure 51 example super pos...

Page 38: ...ser s Guide SX8634 35 44 45 Evaluation Kit 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 Furth...

Page 39: ...CATIONS SENSING Rev 0 9 September 2010 39 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit 5 8 3 Buttons tab Figure 53 buttons tab The buttons tab allows the user to change the configuratio...

Page 40: ...ber 2010 40 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit 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...

Page 41: ...CATIONS SENSING Rev 0 9 September 2010 41 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit 5 8 5 Mapping tab Figure 55 mapping tab The mapping tab allows the user to change the configuratio...

Page 42: ...0 9 September 2010 42 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit 5 8 6 GPIO tab Figure 56 GPIO tab The GPIO tab allows the user to change the configuration of the GPIO either through...

Page 43: ...s 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 afte...

Page 44: ...n 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 The details of the SPM can be shown b...

Page 45: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 45 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit 6 Schematics Figure 59 SX8644EVK schematic page 1 2...

Page 46: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 46 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 60 SX8644EVK schematic page 2 2...

Page 47: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 47 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 61 SX8645EVK schematic page 1 2...

Page 48: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 48 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 62 SX8645EVK schematic page 2 2...

Page 49: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 49 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 63 SX8634EVK schematic page 1 2...

Page 50: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 50 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 64 SX8634EVK schematic page 2 2...

Page 51: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 51 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 65 SX8635EVK schematic page 1 2...

Page 52: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 52 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 66 SX8635EVK schematic page 2 2...

Page 53: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 53 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit 7 Layout Figure 67 SX8644EVK top layer Figure 68 SX8644EVK mid layer 1...

Page 54: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 54 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 69 SX8644EVK mid layer 2 Figure 70 SX8644EVK bottom layer...

Page 55: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 55 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 71 SX8645EVK top layer Figure 72 SX8645EVK mid layer 1...

Page 56: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 56 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 73 SX8645EVK mid layer 2 Figure 74 SX8645EVK bottom layer...

Page 57: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 57 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 75 SX8634EVK top layer Figure 76 SX8634EVK mid layer 1...

Page 58: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 58 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 77 SX8634EVK mid layer 2 Figure 78 SX8634EVK bottom layer...

Page 59: ...ADVANCED COMMUNICATIONS SENSING Rev 0 9 September 2010 59 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 79 SX8635EVK top layer Figure 80 SX8635EVK mid layer 1...

Page 60: ...S SENSING Rev 0 9 September 2010 60 www semtech com User s Guide SX8634 35 44 45 Evaluation Kit Figure 81 SX8635EVK mid layer 2 Figure 82 SX8635EVK bottom layer Figure 83 SX8634 44EVK SX8635 45EVK sta...

Page 61: ...34 35 44 45 Evaluation Kit 8 References 1 SX8643 Datasheet 2 SX8644 Datasheet 3 SX8645 Datasheet 4 SX8646 Datasheet 5 SX8647 Datasheet 6 SX8648 Datasheet 7 SX8649 Datasheet 8 SX8633 Datasheet 9 SX8634...

Page 62: ...rom misuse neglect improper installation repair or improper handling or unusual physical or electrical stress including but not limited to exposure to parameters beyond the specified maximum ratings o...

Page 63: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Semtech SX8644EVK SX8634EVK SX8645EVK SX8635EVK...

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