Low Power Wireless Transmitter User`s Guide
Contents
1. Freescale Semiconductor Document Number LPWTUG User Guide Rev 0 October 2012 Low Power Wireless Transmitter User s Guide Contents 1 ntrod u ct j on L Wooo pei teeerierciteimecnes This reference design demonstrates a Freescale Qi compliant low power wireless transmitter solution It is focused on a cost effective flexible and highly integrated platform that will highlight these features e Wide DC input voltage range of 5 V to 16 V with single power stage e Free positioning with multiple primary coils e Simple and robust communication demodulation circuit e Low power standby operation e Precise and reliable power transfer with digital PID closed loop control e Interoperable operation with any receiver device with WPC Qi logo e Friendly user interface Gr Nn D W iW N se je j 0 Chu This application is an open source based solution which gives users design freedom allows products differentiation and providing access to essential Freescale wireless charging embedded software libraries N 2012 Freescale Semiconductor Inc K freescale Introduction Adapter Receiver Device with Qi logo JTAG Converter Isolator Freescale Low Power Wireless Transmitter Figure 1 Wireless charging system configuration Figure 1 shows the complete wireless charging system proposed by Freescale It contains e PC for monitoring controlling and programming2. e JTAG converter with isolator connection tool between target and PC e Wall adapter or other DC source for powering the wireless transmitter e Any Qi compliant receiver device This user guide focuses only on how to correctly operate a Freescale low power wireless transmitter The detailed component layout of the Freescale low power wireless transmitter platform is shown in Figure 2 which contains e Freescale MCS56F8006 DSC CPU of platform e Power sources provides power for all components on platform e Power stage converts DC power to AC power e Primary coil array transmits power through generated magnetic field e Sensing circuit senses input voltage current and coil voltage current for power transfer control power calculation and fault protection e Resonant bank selection circuit configures suitable primary coils and resonant capacitor for power transfer to support free positioning function under full input voltage range and load range e Communication demodulation circuit demodulates communication signals to link with a receiver e Human machine interface for monitoring controlling and debugging Communication Resonant bank HMI demodulation circuit selection circuit MC56F8006 L p C E Power source Sensing circuit Power stage Primary coils Figure 2 Layout of Freescale low power wireless transmitter Some key human interfaces are highlighted in Figure 3 They will be described in more detail later in this d
3. the transmitter primary coils to assure reliable power transfer 8 Click the Enable button on the demo board to exit Standby mode and start receiver detection The LED of the run status indicator will start flashing If there is no receiver or the receiver doesn t respond the detection action will last one minute then the system will return to Standby mode the LED of the run status indicator will be off 9 When power transfer is successfully established the LED of the run status indicator is on The input current of the transmitter demo or receiver output status can also indicate if the system successfully enters power transfer mode 10 When power transfer is complete the system will return to Standby mode and the LED of the run status indicator will be off If the receiver is taken away when power is transferring the system will restart to detect the receiver for one minute If there is no receiver or the receiver doesn t respond the detection action will last one minute then the system will return to Standby mode 11 If any system fault occurs the fault indicator LED will turn on and the system will stay in Fault mode A fault status can be cleared only by powering down the demo board 5 FreeMASTER software installation If there is no FreeMASTER application installed on the PC that you intend to use for to control the demo you can find the latest version of the installation file FMASTERSW exe on the Freescale FreeMASTER web page
4. Number LPWTUG Rev 0 October 2012 Information in this document is provided solely to enable system and software implementers to use Freescale Semiconductors 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 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 different 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 app
5. eMASTER options configuration shown in Figure 5 Low Power Wireless Transmitter User s Guide Rev 0 October 2012 Freescale Semiconductor Inc FreeMASTER software installation Options Comm MAP Files Pack Dir HTML Pages Demo Mode Default symbol file output pbx elf aay File format Binary ELF with DWARF1 or DWARF2 dbg format v Edit List of all valid symbol files MV Synchronize variables each time the symbol file loads MV List errors variables using undefined symbols Always Except after project load K ok Cancel Help Figure 5 FreeMASTER settings Options MAP Files 5 Power up the demo by plugging the output of a DC source wall adapter into the power jack on the demo board The system will stay in standby mode The workable DC input voltage range is 5 16 V for this demo If the voltage is less than 6 V use 3 A current rating if it s above 6 V use 2 A 6 After the FreeMASTER options are configured FreeMASTER communication can be started To start stop the communication click the red STOP button in the button toolbar of the FreeMASTER window shown in Figure 6 The system run status can be monitored and controlled via the FreeMASTER application Please refer to FreeMASTER control for more information SADE Figure 6 FreeMASTER button toolbar 7 Place any Qi compliant receiver device on top of the coil mask of the transmitter demo Align the receiver coil on the area of
6. eWanior CCS JTAG OnCE a Plugin Core amp JTAG FreeMASTER CommPlugin for Remote Server DCOM Save settings to project file IW Save settings to registry use it as default I Save settings to FreeMASTER CommPlugin for Remote Server HTTP Processor Core Type SBF Bxxx FreeMASTER OSBDM Communication FreeMASTER over TCP Communication Plugin experimental JTAG Chain Position 0 Communication state on startup and on project load Communication state d Free MASTER P amp E BDM Communication Plugin HCS08 12 ColdFire C Open port at startup C Open port at stan FreeMASTER over CAN Communication F JTAG Clock Speed 1000 kHz Do not open port at startup Do not open port at startup Store port state on exit apply it on startup Store port state on exit apply it on startup iV Acknowledge each JTAG word read by a JTAG write Store state to project file apply upon its load d E I Store state to project file apply upon its load Advanced JTAG TDF bit bug workaround Cancel Heb Cancel pe TQ rb Figure 4 FreeMASTER settings Options Comm Select the MAP Files tab in the Options window Open demo symbol file by clicking open button Select symbol file of ptx elf from the Project Goal File folder Select file format Binary ELF with DWARF1 or DWARF2 dbg format from pull down menu by clicking the down arrow button on the right side of the File format text box Click OK button to complete Fre
7. g points in mind while following the instructions in this guide e Power down the input supply source before moving scope probes making connections and so on e Follow proper safety procedures e Wear safety glasses e Remove all rings watches and jewelry or other metal belongings e Use shields e Operation should be done only by personnel trained in power electronics lab techniques Low Power Wireless Transmitter User s Guide Rev 0 October 2012 Freescale Semiconductor Inc 3 Ld Setup guide e Do not plug any other cables into the demo system except for the power supply cable e JTAG is only used for FreeMASTER connection optional to run system and firmware programming 4 Setup guide In order to correctly operate the Freescale low power wireless transmitter demo please perform the following instructions step by step If FreeMASTER is not required to connect with the demo to monitor the system run status please skip steps 1 4 and 6 1 Properly connect the 14 pin JTAG connector of the Freescale JTAG converter to the JTAG header on the demo board Note that the red string of ribbon wire on the JTAG converter must be aligned with pin 1 of the JTAG header on the demo board 2 Properly connect the JTAG converter to the PC USBTAP to USB port parallel converter to parallel port 3 Open FreeMASTER project in Project FreeMASTER Power Transmitter pmp through the FreeMASTER application If Free MASTER is not ins
8. lication in which 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 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 claims 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 complaint and or non Pb free counterparts For further information see http www freescale com or contact 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 2012 Freescale Semiconductor Inc P freescale 3 K
9. ocument when we discuss setting up an operational system Low Power Wireless Transmitter User s Guide Rev 0 October 2012 2 Freescale Semiconductor Inc About this document e JTAG header connects to JTAG converter for FreeMASTER connection and firmware programming e Power jack connects to adapter or DC source e Coil mask area to place receiver device e Enable button to exit system from standby mode e Run status indicator indicates system run status e Off standby mode e Flashing PING mode e On power transfer mode e Fault indicator indicates system fault status e Off no fault e On faults in system aa ae nay n ae ee IG int hee SATEET ikea Some tc X haras OTT Figure 3 Interfaces of Freescale low power wireless transmitter 2 About this document The key items can be found in the following sections of this document e Introduction to the demo Section 1 Introduction e Information about safety in using the demo Section 3 Warnings e System setup instructions Section 4 Setup guide e FreeMASTER installation Section 5 FreeMASTER software installation e Control via FreeMASTER Section 6 FreeMASTER control 3 Warnings The power stage includes power components that can reach temperatures hot enough to cause burns To facilitate safe operation the DC input power should come from a DC power supply that is current limited to no more than 3 amps Keep the followin
10. ol FreeMASTER is a free Freescale development tool useful for accelerating development time in a project s R amp D phase A DIY approach is encouraged to help you better debug your application per personalized requirements The items are not limited to those items shown in this document NOTE Please refer to the FreeMASTER user manual for a complete list of features Low Power Wireless Transmitter User s Guide Rev 0 October 2012 Freescale Semiconductor Inc 7 How to Reach Us Home Page www freescale com Web Support http www freescale com support USA Europe or Locations Not Listed Freescale Semiconductor 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 Japan 0120 191014 or 81 3 5437 9125 support japan freescale com Asia Pacific Freescale Semiconductor China Ltd Exchange Building 23F No 118 Jianguo Road Chaoyang District Beijing 100022 China 86 10 5879 8000 support asia freescale com Document
11. specify the description stared for each item in the pole tree p the single Control P In addition there are two types of charts Scope and Recorder to read application variables and plot them in a view panel While the Scope periodically reads variables and plots them in real time the Recorder is running on the target board reading variables and sending them to the FreeMASTER application in a burst mode fashion when the trigger event is detected by the target Therefore the Recorder enables use of a much shorter sampling period and can plot very quick actions To open either Recorder telescope icon or Scope time line icon view panel select it from a list on the left project tree window shown in Figure 8 the Scope view panel of PID is open File dit yew gcope kem Project Tools Help saag Sala slaa sia alela finn 41s ae enosn wrnimary_Vol_Ref wPrimeary_Vol_Error wrimary_Vol m Q PIRIC OCinen F 5 a 3 ool Taw Sea bitec Dit ernt winput_current 0 28 ee Figure 8 Scope view pane winput_ voltage 9 02 wCoil_ current 0 1633 whyrnary vor it w4 wPrimary_Vol_In 2 9 wPrenaey Vol Ref 9 wrerery_Vol_sum 384 wPrenary Vol Error packetRxCnt 0 packetOkRxCnt 0 oec oec addr locallvott core S6hiicx Low Power Wireless Transmitter User s Guide Rev 0 October 2012 Freescale Semiconductor Inc C FreeMASTER contr
12. talled in your PC please refer to section 5 for installation 4 Correctly configure FreeMASTER options a b C Options Click Options command in Project menu of FreeMASTER application Select Comm tab in Options window A Plug in Module has to be selected for FreeMASTER communication with the JTAG converter Click the down arrow button of the pulldown menu on the right side of the text box of the Plug in Module item to select a suitable plug in connection either FreeMASTER 56F8xxx Direct LPT JTAG Communication Plugin item for parallel converter or FreeMmASTER CodeWarrior CCS JTAG OnCE Communication Plugin for USBTAP Click the Configure button to open the window of Command Converter Server Settings keeping default settings Click the OK button to complete configuring the command converter server settings shown in Figure 4 fee lt 3n Options Command Converter Server Settings Comm MAP Files Pack Dir HTML Pages Demo Mode Comm MAP Files Pack Dir HTML Pages Demo Mode Metrowerks CCS Co ication nes Host address localhost Speed 9600 Timeouts Direct RS232 Port COM1 Speed 9600 Timeouts a TCP IP Port 41 475 CCH 0 Module o Fein JTAG OnCE Communicatid Plugin Module FreeMASTER CodeWaniorCCS JTAG OnCE Communicatio_ ee 7 Connect string FreeMASTER 56F amp ox Direct LPT JTAG Communication P C sina z ama FreeMASTER Cod
13. www freescale com freemaster In case of any problem with the installation process or when using the software download the user manual from the Freescale web page 6 FreeMASTER control After launching the FreeMASTER application and performing all setup actions described above FreeMASTER can successfully set up communication with the demo board Low Power Wireless Transmitter User s Guide Rev 0 October 2012 Freescale Semiconductor Inc 5 FreeMASTER control In a FreeMASTER project there 1s a Watch Grid pane at the bottom of the application window The Watch Grid pane contains the list of watch variables which is used to observe set the variable values shown in Figure 7 CJ PowerTransmitter FreeMASTER es oe x File Edit Yiew Explorer kem Project Tools Help j SBOE Aala ela S elaela i eel ae aa gt s zu S E I proj e Show me where can I do It ou can hide the tab with this message Nare WRec bitoni winpul_current winput_vollage wCoil_ current whrimary_ Vol _wPrimary_Vol_In werimary_Vol_Ref wPrimary_Yol_sun wPrimary_Vol_Freor packetRxCnt packetOkRxCnt pocketRxFrrent _packetRxfrrCatPerSec _wPhaseShift g_ PkKRxCtr OlCtrifrr odcnt ctriEnrPkCnt g_PreCtrlging duty ulFlag Cap_enable coil_mask wPWM_flag Figure 7 Watch Grid pane addrslucalbost cores hoc Please specify the URL of the document describing the item currently selected in the ect tree If you don t want to
Download Pdf Manuals
Related Search