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Freescale-HCS08-S08JM-MC9S08JM60-Learning

1. No touch and no release buffer this is only an information option settings are not active in the case of non buffered mode Using Freescale Devices for Contactless Touch Applications Rev 0 20 Freescale Semiconductor References Touch buffer this option determines whether or not data is logged in the FIFO any time a button is pressed Release buffer this option determines whether or not data is logged in the FIFO when the touch pad transitions from a touched to an untouched state Touch and release buffer this option combines both of the previous types of buffer Appendix A References MC9S08JM60 Data Sheet Freescale Semiconductor Rev 2 3 2008 MPRO84 Data Sheet Freescale Semiconductor Rev 4 10 2008 NCP561 Data Sheet ON Semiconductor Rev 5 8 2007 FreeMASTER for Embedded Application User Manual Rev 0 1 6 2004 AN2471 PC Master Software Communication Protocol Specification AN3492 USB and Using the CMX USB Stack AN3564 Customize the USB application Using the MC9SO8JM AN3565 USB and Using the CMX USB Stack with 9SO8JM Devices Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 21 Touch Pad Demo Board PCB Appendix B Touch Pad Demo Board PCB Lge AN ME O a Figure 14 Top Layer of Demo Board Not to Scale 00347 01 15 Oct 2008 Figure 15 Bottom Layer of Demo Board Not to Scale U
2. 42 1 Driver Installation coso comisura ria risa 17 4 2 2 Test the Demo Board by Running Free MASTER This application also offers a demonstration of O ts ld dd eee ane ene hs g Appendix A References oocoocccccoccccno 21 FreeMASTER visualization software on the PC which Appendix B Touch Pad Demo Board PCB 22 can co operate with the demo board read data from it and render this data in visual format on the PC e eo f Freescale Semiconductor Inc 2008 All rights reserved e reescale semiconductor Application Description 1 Application Description A block diagram of the touch pad demo application is shown in Figure 1 The full touch pad demo application consists of touch pad demo board optional external ITO screen electrodes and FreeMASTER visualization script on a PC The goal of the touch pad demo board design is to provide a small portable board with the capability of demonstrating the Freescale capacitive touch sensor controller and its connection to a PC via a Freescale USB device The touch pad demo board incorporates an internal 8 element touch pad on the top of the PCB There are two main components on the back side of the touch pad demo board connected via the PC serial interface on the board e The MPRO 4 capacitive touch sensor controller which registers any touches on the internal pads or the external ITO screen This ITO screen may be connected to the demo board through a ZIF con
3. RTC Real time counter with binary based or decimal based prescaler Input output Upto51 general purpose input output pins Software selectable pullups on ports when used as inputs Software selectable slew rate control on ports when used as outputs Software selectable drive strength on ports when used as outputs Master reset pin and power on reset POR Internal pullup on RESET IRQ and BKGD MS Typical applications 2 2 1 Game pads Security control panels Printers PC peripherals NMC9S08JM60 USB Module Description USB is a host controlled serial bus which uses a star topology All communication is initiated by the host all devices are polled In any USB system there is only one host USB devices are hubs or functions Hubs provide additional attachment points to the USB host Functions provide capabilities to the system such as an ISDN connection a digital joystick or speakers Features USB 2 0 compliant 12 Mbps full speed data rate Seven USB endpoints Bidirectional endpoint 0 Six unidirectional data endpoints configurable as interrupt bulk or isochronous Endpoints 5 and 6 support double buffering 256 bytes USB RAM USB reset options internal MCU reset generated BUS reset generated Converts USB differential voltages to digital logic signal levels Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor E A A Basic Featu
4. board FreeMASTER visualization script on the PC e Basic settings of the demo board via FreeMASTER visualization script on the PC Press type mode Non buffered mode several pads can be read at the same time Buffered mode only a single pad can be read at one time Touch delay in buffered mode 0 25 s to 2 5 s Maximum touches allowed in non buffered mode 1 to 7 pads Type of buffer touch release or touch and release e Power to the touch pad demo board from the USB power line e All components are on the back of the PCB the keypad side is perfectly flat for easy mounting 2 Basic Features In this section the basic features of the two main components of the touch pad demo board are described There are also other components on the back side of the demo board for its proper operation including capacitors resistors inductors connectors LEDs voltage regulator and crystal 2 1 MPRO84 Proximity Capacitive Touch Sensor Controller The MPRO84 is an inter integrated circuit communication PC driven capacitive touch sensor controller optimized to manage an 8 element touch pad capacitive array The device can accommodate a wide range of implementations through three output mechanisms and has many configurable options The MPR084 uses an I2C interface to communicate with the host that configures the operation and an interrupt to inform the host of status changes The MPRO84 includes a piezo sound driv
5. is a whole new function added called FMSTR_ProcessUSB if FMSTR_USE_USB void FMSTR_ProcessUSB void transmitter active and empty if pcm_wFlags flg bTxActive FMSTR_Tx read out and ignore any received character loopback if cdc_kbhit FMSTR_BCHR nRxChar OU nRxChar FMSTR_BCHR FMSTR_USB_GETCHAR transmitter not active able to receive else data byte received if cdc_kbhit FMSTR_BCHR nRxChar OU nRxChar FMSTR_BCHR FMSTR_USB_GETCHAR FMSTR_Rx nRxChar tendif and this new function is used in FMSTR_Pool together with code for CDC processing if FMSTR_USE_USB polled USB mode FMSTR_ProcessUSB CDC device implementation cdc_process else Using Freescale Devices for Contactless Touch Applications Rev 0 14 Freescale Semiconductor Software Description 4 1 2 CMX USB Communication Driver The touch pad demo application uses a standard USB communication driver from CMX Systems Inc which is implemented in the Free MASTER communication protocol in function freemaster_serial c see Section 4 1 1 Free MASTER Driver However this driver has been updated for the touch pad demo requirement All of these changes appertain to a new parameter reg3V in some functions Refer to the following files for these changes e usb c in function usb_init there is one new parameter added called reg3V whic
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7. your Freescale sales representative For information on Freescale s Environmental Products program go to http www freescale com epp Freescale and the Freescale logo are trademarks of Freescale Semiconductor Inc All other product or service names are the property of their respective owners O Freescale Semiconductor Inc 2008 All rights reserved 12s 2 freescale semiconductor
8. AG communication routines freemaster_protocol c freemaster_protocol h contains the Free MASTER protocol decoder and also the handlers of basic protocol commands read memory write memory etc freemaster_scope c contains the Free MASTER oscilloscope implementation freemaster_rec c freemaster_rec h contains the Free MASTER recorder implementation freemaster_tsa c freemaster_tsa h implements a new Free MASTER feature called Target Side Address translation freemaster h main Free MASTER API header file freemaster_cfg h contains Free MASTER serial communication driver configuration file freemaster_private h contains Free MASTER driver private declarations used internally by the driver freemaster_appcmd h contains Free MASTER application commands implementation The MC9S08JM60 microcontroller offers many features that simplify the touch pad demo design Table 2 describes the individual available blocks and their usage in the introduced system Table 2 MC9S08JM60 Module Usage Module Available on Used Purpose MC9S08JM60 USB yes Communication between the touch pad demo board and PC external communications ACMP no ADC no SCI no SPI no C yes Communication between the MCU and MPR084 internal communications TPM1 yes Touch delay in buffered mode TPM2 no KBI no RTC no IRQ yes Information about new data in the FIFO of the MPRO84 Table 3 shows how
9. Freescale Semiconductor Document Number AN3761 Application Note Rev 0 11 2008 Using Freescale Devices for Contactless Touch Applications Touch Pad Demonstrator Board by Lud k Slosar ik Roznov Czech System Center Czech Republic The touch pad demonstrator board is a development Contents board for the demonstration of two Freescale devices the 1 Application Description 00ooooccocccoccooo 2 proximity capacitive sensor MPR084 and the USB 1 1 Features 66sec cece eee eee ees 3 A 2 Basic Features norris ias 3 microcontroller MC9SO8JM60 2 1 MPR084 Proximity Capacitive Touch Sensor A A eos CONE 0ccd 6 eterna eeadesceavawane 3 The basic component of this board is a proximity 22 MC9SO8JM6O0 Microcontroller 5 capacitive touch sensor controller the MPRO84 This is 2 2 1 MC9S08JM60 USB Module Description 6 interint te ci it icati PC dri 3 Hardware Description sis icsieea denen cea paa danas 8 an inter integrated circuit communication Tiven 4 Software Description 0ccceeeeeeeeees 11 capacitive touch sensor controller optimized to manage 4 1 MC9S08JM6O0 Firmware oooooo oo oo 11 an 8 element touch pad capacitive array pa tela nO an He 4 1 3 2C Communication Driver 15 The second important component of this board is the AAA Wein Paro LORD gt orina aaa 16 8 bit MC9S08JM60 MCU with a full speed USB 4 2 FreeMASTER Visualization Script 17 module
10. IC address of the MPRO84 0x4C address of the required MPRO84 register to read address of the pointer to store data and the number of the byte to read from this required data register auto increment loop The main API functions for the 12C driver hardi2c c are in the file keyboard h and their implementation in file keyboard c This file includes the following functions API keyboard interface e ppr_CheckFifoData this function checks the FIFO buffer of the MPRO84 for new data touch pad has been touched Apart from this this function prepares information from the More Data flag Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 15 Software Description 4 1 4 of the FIFO register into variable next_data This information shows whether or not data will remain in the buffer after the current data is read This function is called by the main program after the interrupt comes Function ppr_CheckFifoData doesn t have an input parameter only an output parameter It returns one byte of information about the touched pad For one of the 8 touch pads this function returns a number from 0 to 7 only one pad at a time single press mode If there is no touched pad this function returns OxFF The main program uses this function only in buffered single press mode ppr_ReadStatusReg this function reads directly the STATUS register of the MPRO84 for new data touched pad but unlike function
11. apan 0120 191014 or 81 3 5437 9125 support japan Ofreescale com Asia Pacific Freescale Semiconductor Hong Kong Ltd Technical Information Center 2 Dai King Street Tai Po Industrial Estate Tai Po N T Hong Kong 800 2666 8080 support asia O freescale com For Literature Requests Only Freescale Semiconductor Literature Distribution Center P O Box 5405 Denver Colorado 80217 1 800 441 2447 or 303 675 2140 Fax 303 675 2150 LDCForFreescaleSemiconductor hibbertgroup com Document Number AN3761 Rev 0 11 2008 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductor products There are no express or implied copyright licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document Freescale Semiconductor reserves the right to make changes without further notice to any products herein Freescale Semiconductor makes no warranty representation or guarantee regarding the suitability 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 liability including without limitation consequential or incidental damages Typical parameters that may be provided in Freescale Semiconductor data sheets and or specifications can and do vary in differen
12. d USB Module GND USB Connector Figure 4 USB Connection Example Bus Powered Self Powered A USB host uses the pullup resistor to detect the connection of the USB device and identifies the device speed low full high Full speed and high speed devices are terminated with the pullup resistor 1 5 kQ on the D line to 3 3 V The MC9SOSJM60 USB module supports only the full speed FS USB data rate It can choose to use an internal or external pullup resistor on the D line see Figure 4 Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 7 Hardware Description 3 Hardware Description All of the components necessary for proper operation are on a small board 80 x 60 mm except for the optional external ITO screen Please note that the required 3 3 V power supply voltage is generated from the USB interface using a small analog regulator U3 Table 1 provides a description of the components of the touch pad demo board and Figure 5 and Figure 6 show their location on the board A touch pad demo board schematic is shown in Figure 7 Table 1 Components on the Touch Pad Demo Board Reference s Value Package Manufacturer Order Code Qt Description C1 C4 C6 10 pF 10V Case A Any acceptable 4 Tantalum polarized filter capacitors C10 C2 C3 C5 0 1 uF 0805 Any acceptable 4 Ceramic
13. e C Line USB gt lt gt Real Time API lt gt Line o Lo O a uN o oO pr 00 Oo uN o O i Color codes Application process 2C communication USB communication FreeMASTER communication Figure 8 MC9S08JM60 Firmware Overview In Figure 8 there is a complete block diagram of the touch pad demo board MC9S08JM60 firmware This firmware code is written in the C programing language in the Metrowerks CodeWarrior Development Studio The MC9S08JM60 firmware code contains the following files e Application process main c main program loop target c target h hardware board specific routines mainly related to initialization IC communication keyboard c keyboard h keyboard MPRO84 application command implementation ppr081 h MPRO84 header file hardi2c c hardi2c h IC routines between the MCU and MPR084 e USB communication usb c usb h USB device driver source Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 11 Software Description usb_cdc c usb_cdc h CDC layer for the USB driver provides UART like API for an application cdct_usb_config c cdct_usb_config h USB configuration for a CDC device hcc_types h common type definitions for USB Free MASTER communication freemaster_serial c contains the Free MASTER SCI USB and JT
14. endif and an adjusted SCI configuration macro ifndef FMSTR_USE_SCI define FMSTR_USE_SCI 0 endif e freemaster_serial c there are some USB configuration statements added at the beginning of the file and two USB functions defined if FMSTR_USE_USB include usb h USB driver from CMX include usb_cdc h CDC device driver from CMX define FMSTR_USB_PUTCHAR ch void cdc_putch ch define FMSTR_USB_GETCHAR cdc_getch define USBREG3V 0 disable internal 3 3V regulator on chip endif Next there is added initialization of the CDC device in the function called FMSTR_InitSerial if FMSTR_USE_USB initialize USB driver with internal 3 3V On chip regulator On Off Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 13 Software Description usb_cfg_init USBREG3V initialize CDC device cdc_init tendif In function FMSTR_SendResponse there is one conditional compilation statement added with a new USB function for transferring start of message SOB if FMSTR_USE_USB FMSTR_USB_PUTCHAR FMSTR_SOB telif FMSTR_USE_SCI In function FMSTR_Tx there is one conditional compilation statement added with a new USB function for transferring one character ch if FMSTR_USE_USB FMSTR_USB_PUTCHAR FMSTR_U8 ch elif FMSTR_USE_SCI Next there
15. er which provides audible feedback to simulate mechanical key clicks The MPRO8x family has several implementations to use in your design including control panels and switch replacements The MPRO84 controls individual Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 3 Basic Features touch pads Other members of the MPRO8x family are well suited for other application interface situations such as individual touch pads or rotary touch pad combinations The MPRO84 consists of primary functional blocks which are shown in Figure 2 interrupt controller PC serial interface sound controller configuration and status registers touch pad decoder magnitude comparator and recalibrator EMI burst noise rejection filter capacitance measurement analog front end SDA lt gt SCL gt ATIN gt Interface ADO gt gt Speaker Speaker Masks lt lt Interrupt Controller Set lt lt Rate foes C Serial a Pad Enabled Touch Pad e Current Identify y lt Pa Decoder Touch Pads Configuration And Status Register 00 Magnitude Comparator and Recalibrator 00 EMI Burst Noise Reject Filter 00 Capacitance Measurement A f e 00 4 Driver E Controller Figure 2 Functional Block Diagram of MPR084 Features 1 8 V to 3 6 V operation 41 uA ave
16. file there is initialization which includes these parts hardware of the MCU amp watchdog FreeMASTER amp CMX USB drivers rc MPRO84 driver and Timer 1 settings In the main program loop these actions are periodically realized MPROS84 reinitialization depending on the change of mode or the type of buffer from Free MASTER Watchdog reset Read data from MPRO84 depending on mode Read periodically the touched pads from the STATUS register of the MPRO84 in non buffered mode and check if the current number of touched pads is lower than the content of the maxTouchMultiply register Read one touchpad pad directly from the FIFO of the MPRO84 after an interrupt has been received or variable next_data from the previous cycle has been set in buffered mode only If there is a touched pad it also starts Timerl for measurement of the touch delay LED control FreeMASTER processing with the built in USB communication FMSTR_Pool Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor Software Description Apart from these periodic actions there can occur two independent interrupts in real time one from Timerl for termination of a touched pad indication but only in buffered mode and the second from the USB communication module for sending or receiving a data packet 4 2 FreeMASTER Visualization Script Free MASTER visualization script is the software for remote visualization and remote
17. filter capacitors C11 C7 0 47 uF 0805 Any acceptable 1 Ceramic filter capacitor C8 C9 22 pF 0805 Any acceptable 2 Filter capacitors for crystal connection D1 D10 HSMA C265 SMD Avago HSMA C265 10 Red Green LEDs for optical Agilent HSMG C265 feedback on the touched pads and power control line JP1 CON10_ZIF 1 0 mm Molex 52271 1079 1 ZIF FFC 1 0 mm interface for connecting an external ITO screen J1 CON USB Mini B Molex 54819 0572 1 USB receptacle for connecting the touch pad demo board to a PC J2 HDR 2X3 2 54 mm Samtec TSM 103 01 S 1 SMT terminal strip for background DV P TR debug mode on MC9S08JM60 MCU L1 L2 1 8 uH 1206 Bourns CS321613 1R8K 2 Ferrite multi layer chip inductors R1 R8 750 KQ 0805 Any acceptable 8 Pullup resistors for capacitive electrode array R10 R15 4 7 KQ 0805 Any acceptable 6 General pullup resistors R16 R17 33 QO 0805 Any acceptable 2 Resistors Rs for USB connection see Figure 4 R19 002 0805 Any acceptable 1 Resistor Rs for crystal connection see Figure 4 R18 1MQ 0805 Any acceptable 1 Resistor Rf for crystal connection see Figure 4 R20 4700 0805 Any acceptable 1 Attenuator for power LED R21 R29 2200 0805 Any acceptable 9 Attenuators for user LEDs Using Freescale Devices for Contactless Touch Applications Rev 0 8 Freescale Semiconductor Hardware Description Table 1 Components on the Touch Pad Demo Board continued Reference s Value Package Manufacturer Order Code Qt Desc
18. h controls the internal 3 3V regulator in the USB module for the demo board this regulator must be off because there is an external regulator see Figure 7 This new code includes if reg3V Enable phy and 3 3V voltage regulator USBCTLO USBCTLO_USBPHYEN_MASK USBCTLO_USBVREN_MASK else Enable phy USBCTLO USBCTLO_USBPHYEN_MASK e usb h in this header file the following code include cdct_usb_config h is added to the beginning of the file and the parameter reg3V is added to the declaration of function usb_init extern hcc_u8 usb_init hcc_u8 reg3V e cdct_usb_config c there is a new parameter reg3V added to function usb_cfg_init void usb_cfg_init hcc_u8 reg3V 1 void usb_init reg3V e cdct_usb_config h there is a new parameter reg3V added to the declaration of function usb_cfg_init extern void usb_cfg_init hcc_u8 reg3V 4 1 3 IC Communication Driver In the file hardi2c c hardi2c h there are PC routines between the MCU and MPRO84 There are several routines for direct access to the microcontroller I7C registers but the most important of these routines are HW_IIC_WriteValue and HW_IIC_ReadArray e HW_IIC_WriteValue this function has three input parameters the PC address of the MPRO84 0x4C address of the MPRO84 register to write to and the value to write to this register e HW_IIC_ReadArray this function has four input parameters the
19. ices with a full speed USB module providing best in class USB module performance system integration and software support Features 8 bit HCS08 central processor unit CPU 48 MHz HCS08 CPU central processor unit 24 MHz internal bus frequency HC08 instruction set with added BGND instruction Background debugging system Breakpoint capability to allow single breakpoint setting during in circuit debugging In circuit emulator ICE debug module Support for up to 32 interrupt reset sources Memory options Up to 60 KB of on chip in circuit programmable flash memory with block protection and security options Up to4 KB of on chip RAM 256 bytes of USB RAM Clock source options Crystal resonator and external clock MCG multi purpose clock generator PLL and FLL internal reference clock with trim adjustment Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor Basic Features Peripherals USB USB 2 0 full speed 12 Mbps device controller ADC 12 channel 12 bit analog to digital converter SCI Two serial communication interfaces SPI Two 8 bit or 16 bit selectable serial peripheral interface modules IC Inter integrated circuit bus module to operate at up to 100 kbps Timers One 2 channel and one 6 channel 16 bit timer pulse width modulator KBI 8 pin keyboard interrupt module
20. much memory is needed to run the touch pad demo board using the MC9S08JM60 microcontroller A significant part of the microcontroller memory remains available for other tasks Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor Software Description Table 3 Memory Usage Available Memory MC9S08JM60 Used Flash 60912 Bytes 8358 Bytes RAM 4096 Bytes 641 Bytes 4 1 1 FreeMASTER Driver The MC9S08JM60 application uses the standard FreeMASTER serial communication driver version 1 1 0 Beta Because there is no USB support in this driver some program changes to it were necessary Refer to these files for the changes e freemaster_private h there is one conditional compilation statement added on line 246 ifndef FMSTR_USE_USB define FMSTR_USE_USB 0 endif e freemaster_protocol c there is one conditional compilation statement added in function FMSTR_Init if FMSTR_USE_SCI FMSTR_USE_JTAG FMSTR_USE_USB initialize communication and start listening for commands FMSTR_InitSerial endif e freemaster_HC08 c SCI interrupt handlers for receive and transmit are compiled conditionally on type of communication in this case on USB if FMSTR_USE_USB endif e freemaster_HC08 h there is a defined USB configuration macro on line 165 ifndef FMSTR_USE_USB define FMSTR_USE_USB 1 define FMSTR_SCI_HAS_TXQUEUE 0
21. nector parallel to the internal pads so there are two independent methods for touching which may be used simultaneously e The MC9S08JM60 an 8 bit MCU device with a full speed USB 2 0 controller on the chip This device reads any touches which are recognized by the MPRO84 and turns on the relevant LED on the board It may also send touch information to the Free MASTER visualization script via USB but only if there is an application running on the PC ITO Electrodes external Touch Pad Demo Board ZIF connector E field Electrodes internal Figure 1 Block Diagram of Touch Pad Demo Application Using Freescale Devices for Contactless Touch Applications Rev 0 2 Freescale Semiconductor Basic Features The touch pad demo board is powered from the PC via the USB power line so this board must be connected to the PC via a USB cable even if no Free MASTER visualization script is running on the PC 1 1 Features The main features of the touch pad demonstrator include e A board that is optimized to manage an 8 element touch pad e Two versions of contactless electrodes either of which may be accessible Onboard E field electrodes An external ITO module connected to the board through a ZIF connector e Connection of the board to a PC through USB using the virtual serial COM port on the PC side communication device class CDC e Touch visualization via Built in LEDs on the demo
22. ppr_CheckFifoData does not read the FIFO buffer Therefore function ppr_ReadStatusReg must be called continuously in the main loop otherwise any touched pads may be lost This function does not have an input parameter only an output parameter Function ppr_ReadStatusReg returns one word of information about the touched pad For one of eight touch pads this function returns a number from 0 to 255 several pads at a time multiple press mode If there is no touched pad this function returns 0 The main program uses this function only in non buffered multiple press mode ppr_init this function initializes the majority of the MPRO84 registers These registers include Configuration register Fault register Touch Pad Configuration register Touch Acquisition Sample Rate register Master Tick Counter register Electrode Channel Enable registers and Sensitivity Threshold registers Function ppr_init has two input parameters intr which disables or enables the interrupt pin in the Configuration register depending on the mode and buffer which selects various types of buffer in the Touch Pad Configuration register This function also clears the FIFO buffer of the MPRO84 This function has no output parameter It is called from the main program during the initialization sequence and also after the press type mode or the buffer type has been changed Main Program Loop The main program loop is realized in file main c At the beginning of this
23. r search and installation options Please wait while the wizard installs the software Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local 3 HC9SO8IMxx CDC paths and removable media The best driver found will be installed J Search removable media floppy CD ROM IV Include this location in the search JEACDC DRV y i g a a a C Don t search will choose the driver to install usbser sys Choose this option to select the device driver from a list Windows does not guarantee that i the driver you choose will be the best match for your hardware To C AWINDOWS system32 D RIVERS lt Back Next gt Cancel Figure 10 USB CDC Driver Installation Wizard Dialogues Using Freescale Devices for Contactless Touch Applications Rev 0 18 Freescale Semiconductor Software Description EE o File Action View Help e gt mela PCMCIA adapters Y Ports COM amp LPT I Communications Port COM1 aF ECP Printer Port LPT1 F HC9508IMxx CDC COMS MB Processors RQ Smart card readers Sound video and game controllers xl Figure 11 New CDC in Device Manager 4 2 2 Test the Demo Board by Running FreeMASTER Visualization Script Now that you have successfully completed the software setup test your demo board by running the FreeMASTER visualiza
24. rage supply current 2 uA low standby current Variable low power mode response time 32 ms 4 s Rejection of unwanted multi key detections from EMI events such as PA bursts or user handling Ongoing pad analysis and detection not reset by EMI events FIFO data buffering for shortest access time IRQ output indicates when FIFO has data System can set interrupt behavior as immediate after an event or program a minimum time between successive interrupts Current touched pad position is always available on demand for polling based systems Speaker output can be enabled to generate key click sound when pad is touched Two hardware selectable I C addresses allow two devices on a single PC bus Configurable real time auto calibration 5 mm x 5 mm x 1 mm 16 lead QFN package 40 C to 85 C operating temperature range Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor Basic Features Implementations Control panels Switch replacements Touch pads Typical applications 2 2 Appliances PC peripherals Access controls MP3 players Remote controls Mobile phones NMC9S08JM60 Microcontroller MC9S08JM60 series MCUs are members of the low cost high performance HCS08 family of 8 bit microcontroller units MCUs All MCUs in the family use the enhanced HCS08 core and are available with a variety of modules memory sizes memory types and package types The 8 bit MC9S08JM60 MCUs are dev
25. re setting of the touch pad demo board This software runs on a PC which connects to the demo board via a USB cable FreeMASTER visualization script is the application which runs under Free MASTER software formerly known as PC Master software Free MASTER software is one of the off chip drivers which supports communication between the target microcontroller and a PC This tool allows the programmer to remotely control an application using a user friendly graphical environment running on a PC It also provides the ability to view some real time application variables in both text and graphic form FreeMASTER software runs under Windows 98 2000 or XP It is a versatile tool to be used for multipurpose algorithms and applications It provides a lot of excellent features including e Real time debug tool e Diagnostic visualization tool e Demonstration tool e Education tool 4 2 1 Driver Installation You must install several programs and drivers from the CD or website before or during the first connection of the demo board to your computer This installation includes the following steps e Install the latest version of Adobe Flash Player onto your PC for proper working of the FreeMASTER visualization script Adobe Flash Player is available at http www macromedia com go getflashplayer e Insert the provided CD in your computer In the Windows start menu double click on the fmaster13 8 exe program on your CD e Follow the onscreen instruction
26. res e Operations can be suspended and resumed with remote wakeup support e On chip USB pullup resistor e On chip 3 3 V regulator USB transfers signals and power over a four wire cable with twisted pairs as specified in the Universal Serial Bus Specification Rev 2 0 Data is signaled differentially over two wires D and D A non return to zero invert encoding scheme is used together with a sync field to synchronize the host and receiver clocks The other two wires 5 V power lines Vgus and GND are assigned to supply devices see Figure 3 VBus AO V Bus D PA a GND NS GND Figure 3 USB Lines Data D D and Power Supply Vgus GND USB devices have two power modes e Bus powered USB devices are powered from the USB bus The maximum current drawn from the host is 500 mA e Self powered USB devices use an individual power supply to provide the current for all components so that 1ts power consumption is limited by the capability of the external power supply A USB device whose current consumption is more than 500 mA must adopt self powered mode Vop 2 7 5 5 V 1 VBus i Bus Powered USBVREN 2 External Power Vuse 3 3 6 V Self Powered External Pullup s External Power 3 3 V Regulator Regulator O USBPU USB RAM and Control Logic Optional Vop or PANA External Regulator Bead ah 2xRs AAN D Optional Bea
27. ription U1 MPRO84 TSSOP 16 Freescale MPRO84EJ 1 Proximity capacitive touch sensor controller U2 MC9S08JM60 LQFP 44 Freescale MC9SO08JM6O0CLDE 1 8 bit MCU with USB module U3 NCP561SN33 SOT23 5 ON Semi NCP561SN33T1G 1 Low dropout voltage linear regulator to supply demo board x1 12 MHz SMD 49 Daishinku SMD 49 1 Crystal resonator for MCU 12 000 MHz tolerance 50 ppm Touch Pad Demo amp CUBE CZ 43788 S Lg ES S freescale sino cs semiconductor PADs Figure 5 Touch Pad Demo Board Top BDM Connector MC9S08JM60 Crystal Power LED USB Socket hs 2 a dE ZIF Connector LDO Regulator MPRO84 LEDs 50347 MH 01 LEDs Figure 6 Touch Pad Demo Board Bottom Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 9 Hardware Description we z Z so f E m NOA DLLEENSI9GAON en ND GUU a e a Q 8 an9 2 El B Z El v S Del E a 3 i woes 5 T T ws a SST T EX7 HOH po o Ne EREMI ia ial oO H o z 6 nee ND T T T T T T T T T E E E E E E E E E E E E E E E ER gt gt gt gt gt gt gt gt FR oO oO O oO O O Q O O anyo anot Y Y Y x
28. s in the FreeMASTER InstallShield Wizard until installation is complete e Connect the demo board to your PC USB slot via the provided USB cable the power LED on the upper right side of the demo board will light at this time e The Found New Hardware announcement should appear on the Windows Toolbar e Then the installation wizard starts searching for new hardware Choose Install from a list or special location see Figure 9 Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 17 Software Description Found New Hardware Wizard Welcome to the Found New Hardware Wizard This wizard helps you install software for HC3508JMxx CDC o If your hardware came with an installation CD E or floppy disk insert it now What do you want the wizard to do Install the software automatically Recommended G di Click Next to continue lt Back Cancel Figure 9 Found New Hardware Wizard Dialogue e Point to the Installation CD as the driver path CDC DRV on your CD click on the Next button and installation should continue see Figure 10 e Check whether a new virtual serial port HC9SO8JMxx CDC has appeared in your Device Manager right click My Computer on the Desktop then go to Properties gt Hardware gt Device Manager see Figure 11 e At this point installation has successfully finished Please choose you
29. s mode allows several pads to be pressed at the same time In the firmware code there is a cyclic reading of the STATUS register of the MPR084 even if no pads are pressed This is an instantaneous output Single press buffered mode in this mode the application program reads touched pads on the MPRO84 directly from the FIFO buffer of the MPR084 but only if there is an interrupt from it The MPRO84 has one interrupt output that is configured by registers and alerts the application when a touch or fault is detected If there is an interrupt this signifies that there is new data available in the FIFO buffer The interrupt is de asserted on the first read of the FIFO register and cannot be reasserted for buffer data until the FIFO is empty a FIFO buffer read will clear the IRQ pin of the MPR084 e Touch delay in buffered mode this option is active only in buffered mode and represents the time for storage of one touched pad The resolution of this parameter is 250 ms It ranges from 0 s to 2 5 s so there are 10 choices in the menu e Maximum touches allowed in non buffered mode adjusts the maximum number of keys that can be concurrently reported as touched but only in non buffered mode There is a range of 1 7 keys for this option When this option is set to any number in this range all touches greater than this number will be ignored and unreported e Type of buffer this option configures the type of buffer in buffered mode
30. sing Freescale Devices for Contactless Touch Applications Rev 0 22 Freescale Semiconductor Touch Pad Demo Board PCB Touch Pad Demo ay fe freescale cad SOmICco TL Z I 3 TR BL i i BR Figure 16 Pad Placement on Top Side of Demo Board Not to Scale A da Cor el L Eri AAA x1 J Me e Da T zy T k P 7 of J ek iD mel 7 A on c7 i EuT ADE e nae C JE J kiere C PE i CA a 2 il fe va a at Th g Bom E J m p S N MS Lie E F LJ Y py j Ree a 06 A i E ar om of O XI A mam Figure 17 Bottom Component Placement on Demo Board Not to Scale Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 23 How to Reach Us Home Page www freescale com Web Support http www freescale com support USA Europe or Locations Not Listed Freescale Semiconductor Inc Technical Information Center EL516 2100 East Elliot Road Tempe Arizona 85284 1 800 521 6274 or 1 480 768 2130 www freescale com support Europe Middle East and Africa Freescale Halbleiter Deutschland GmbH Technical Information Center Schatzbogen 7 81829 Muenchen Germany 44 1296 380 456 English 46 8 52200080 English 49 89 92103 559 German 33 1 69 35 48 48 French www freescale com support Japan Freescale Semiconductor Japan Ltd Headquarters ARCO Tower 15F 1 8 1 Shimo Meguro Meguro ku Tokyo 153 0064 J
31. t applications and actual performance may vary over time All operating parameters including Typicals must be validated for each customer application by customer s technical experts Freescale Semiconductor does not convey any license under its patent rights nor the rights of others Freescale Semiconductor products are not designed intended or authorized for use as components in systems intended for surgical implant into the body or other applications intended to support or sustain life or for any other application in which the failure of the Freescale Semiconductor product could create a situation where personal injury or death may occur Should Buyer purchase or use Freescale Semiconductor products for any such unintended or unauthorized application Buyer shall indemnify and hold Freescale Semiconductor and its officers employees subsidiaries affiliates and distributors harmless against all claims costs damages and expenses and reasonable attorney fees arising out of directly or indirectly any claim of personal injury or death associated with such unintended or unauthorized use even if such claim alleges that Freescale Semiconductor was negligent regarding the design or manufacture of the part RoHS compliant and or Pb free versions of Freescale products have the functionality and electrical characteristics as their non RoHS compliant and or non Pb free counterparts For further information see http www freescale com or contact
32. tion script You must copy the file called TPDemo_Visualization exe from the installation CD to your local hard drive and then double click on this file Follow the onscreen instructions in the InstallShield Wizard until installation is complete Then double click on the TouchPadDemo pmp program in the directory TPDemo_ Visualization Following this a visualization script will appear on your PC see Figure 12 F TouchPadDemo pmp FreeMASTER E 0 x File Edit View Explorer Item Project Tools Help saom Hals ea 21 212 9215 a 14 ape EX New Project New Scope Touch Pad Demonstrator Nam Value Press Type mode multiply press non buffered mode ENUM 1000 status multiply press 160 ENUM 100 Touch delay in buffered mode 0 25s 1 ENUM 1000 Max touches allowed in non buffered mode 7 DEC 1000 Type of buffer no touch amp no release buffer ENUM 1000 lalalala Done R5232 COM5 speed 9600 4 Figure 12 FreeMASTER Visualization Script Now you must set the proper virtual serial communication port in menu Project Options see Figure 13 This is the same port used as during driver installation in this case COMS Others settings such as the communication speed don t matter in this case they would apply only to a CDC device Then you must click on the red Start Stop Communication button third icon on the upper left side in the program If all previous installations and settings are correctl
33. y done the FreeMASTER visualization Using Freescale Devices for Contactless Touch Applications Rev 0 Freescale Semiconductor 19 Software Description script for the touch pad demo is now running So if you press the pad s on the demo board the green LED s on the demo board and appropriate graphical pad s in the program turn on You may also see appropriate text values of the touched pad s in the Watch Properties window in the program near the STATUS parameter on the bottom edge of the window options xl Comm MAP Files Pack Dir HTML Pages Demo Mode T Communication i Port COMS Speed f9600 v _Timeouts 2 Plugin Module y Connect string v I Save settings to project file IV Save settings to registry use it as default r Communication state on startup and on project load C Open port at startup Do not open port at startup C Store port state on exit apply it on startup Store state to project file apply upon its load Advanced Cancel Apply Help Figure 13 Communication Port Setting You may also set several parameters of the demo board by clicking on the value in the Watch Properties window These parameters include e Press type mode is a basic setting on the demo board to determine the type of pressure that has been applied to the MPR084 The demo board has two primary methods for reporting data Multiple press non buffered mode thi

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