TRF6901 with MSP430 Demonstration and
Contents
1. 3 2 Loading the MSP430 With the Firmware 3 2 The MSP TRF6901 DEMO comes with complete source code to program the MSP430 to run the demo program The user can develop new application software that can be downloaded to the MSP430 MCU using the JTAG connector For practical purposes the following procedure illustrates how to download the demo source code to the MSP430 The project file for compiling the demo source code is trfG901 demo prj The following steps show how to open this project and program the MSP430 Prototyping Step 1 Remove the two AAA batteries or slide the On Off switch to Off Step 2 Start the Workbench START gt PROGRAMS gt IAR SYSTEMS gt IAR EMBEDDED WORKBENCH Step 3 Use FILE gt OPEN to open the project file at Installation root V V trf6901_demo prj Step 4 Use PROJECT gt BUILD ALL to compile and link the source code You can view the source code by double clicking Common Sources and then double clicking on the source files in the trfG901 demo prj window Step 5 Ensure that C SPY is properly configured With DEBUG selected PROJECT gt OPTIONS gt C SPY 1 PARALLEL PORT gt PARALLEL PORT gt LPT1 default or LPT2 or LPT3 Step 6 Use PROJECT gt DEBUGGER to start C SPY C SPY erases the device Flash and then download to the device Flash the application object file Step 7 In C SPY use EXECUTE gt GO to start the application Step 8 In C SPY use FILE gt EXIT to exit C SPY2. Four buttons used for the demonstration application connected to the MSP430 P1 0 to P1 3 I O ports Four LEDs used for the demonstration application connected to the MSP430 P1 3 to P1 7 I O ports RS 232C connector footprint RS 232C circuitry is not included in the kit JTAG connector TRF6901 I O header used to control or monitor the TRF6901 component externally MSP430 disable jumper used to disable the MSP430F449 component MSP430F449 component A simple game is implemented in the firmware to demonstrate bidirectional RF communication The transmit side initiates the game by pushing any sequence of four buttons The user on the receive side responds by pushing the same button sequence After a complete roundtrip the transmit side illuminates one of three LEDs depending on the feedback provided by the receiving board 11 Successful user response and communication The green LED illuminates if the packet was delivered to the receiving board and the user on the receiving board pressed the correct sequence of buttons 1 Successful communication and user error The orange LED illuminates if the packet was delivered to the receiving board and the user on the receiving board pressed the incorrect sequence of buttons Q Communication error The red LED illuminates if there was a communication error 2 3 Demonstrating 2 2 1 Getting Ready Before you start operating the units as a demonstration make sure that you have d
3. LN HOLD DATA Pag 82 p34 Zag Big 30 Sie JA TX DATA AA 88 p3 3 UCLKO X asf x 17 2312 EA x i Ba 68 p32SOMIO D o o see 3 Str S15 UBXDO d jo UD ASSI 12 P3 1 51M00 8388 KENE S15 S kin 4 3 e z A 2g S14 S32 p Sa P30 STEO SLACAN 222mMMz22 14 25 Sis 80 gs 3 5m 0O22FErEErE QOEEEEEE o S13 8 7 RF CODIGO NOHFANTS 2 g or saa 2 8 dig ap Naddadadd a O Y uosmensa t B S27 ELELDE nanahaha O L 90009000900 S 4 13 PS dda amp 2 16 15 P8428 ERE p S21 S2 ___qig 47 Si8 o 20 19 pS sis 929 8 si OPTIONAL DNP S 8 akeleiokolleoloi2lz S14 oa spei 8 s SOOO 229 26 25s P88 n R10 eig 97 eio 44 tour THIN E 30 29 P82 RIIN yy RIOUT St o ape O as oa 33 PB B L r2our amp TAN 29 36 35 P82 11 pain R2OTU ds38 37 PD O40 sop Vet vec a C2 Ci HEADER 20X2 CONNECTOR DB9 5 oa ere 6 C43 gt GND DWN DATE AUF PEI NOTES UNLESS OTHERWISE SPECIFIED RICH WILLIAMS 3 1203 CNOWIRE Technology 1uF 1 INTERPERT DRAWING IAW MIL STD 100 GHK 1400 Coleman Ave Bldg G 22 Santa Clara CA 95050 2 RESISTANCE VALUES ARE IN OHMS x Doo ki 3 CAPACITANCE VALUES ARE IN FARADS te F 4 PARTIAL REFERENCE DESIGNATIONS ARE SHOWN EXGEPTAS AN BE OTHERWISE HOVIBED BY GONTBAGT THIS APRYD TRF6901 MSPF449 DEMO BD DRAWING OR SPECIFICATION IS THE PROPRIETARY PROPERTY OF XX XX
4. cr En 5 CO 44 10 700MHZ 100pF gt 10K 1 MOD RX DATA c13 DNP DNP Tsani PA GND1 DC DC IN 25 2200pF PA GND2 Cl a C15 X 23 100pF VCO GND1 C2 VCO_GND2 g DC DC OUT 22 z eta 2 e s 8 ki Dod 0 az i ul EE E Ee Zr RX DAT a S 560 Zeus a 53 9 j PPRX DATA 8 a a c o2 SPOEXE YE SEE S 8586 203500 FE okk baie dJ d d Y ddddda dd uda yeovec E XIALVOC g amp CLK OUT COVCC2 gt ula Elz gt CLK OUT T 1 uj 9 9B x XE g 9 ip E sk XT 5 amp Sio E R35 R39 R38 AUF co 9 5 c7 PY t t 1 T 1 7 2 20 000MHZ 68pF H vec l AUF AUF R40 C18 4 4 i 15pF C60 L 22uF cie LLILITILI FR 20 80 Onwave lt 16V 1000pF BARBLOE E z csc aa 2990 x gt 4 i e me co co os cse CNOWIRE Technology AUF AUF AUF AUF i 1400 Coleman Ave Bldg G 22 Santa Clara CA 95050 x frite BESETTES ALES TINE TOURS CENTRAL O TESSA MARA DEMO BD MiB I NANGEN b GEER REEE vo Pb 10001186 w WHOLLY IN ANY MANNER WITHOUT PRIOR EXPRESS WITTEN B 1 0001 1 SCH 01 A AUTHORIZATION OF CNOWIRE TECHNOLOGY INC Date Fridav April 25 2003 Eheet of A B S D E
5. z 32 768KHZ R0 F s k al TALIN R29 RES IN FOR a o NORTH AMERICX J2 vqo RSSI TDO TDI E P66 TDI E 26 VCC CPI P65 TMS D T T P6 4 TCK 5 8 P6LEDS EE umo C57 C37 033 c31 C34 RES IN FOR P6LED2 RST 9 19 EU RF BAND P6LED1 1 Vgc Jis ede AUF AUF AUF AUF AUF R42 13 14Pp X P6LEDO i i VCC CPU HEADER 7X2 o dado a vec vec dad A 83434 M Ooruaymnaoc zx xonoa8 X be X Onn AKK aa lt 52323 oO L 5853552 ZEZE A p X p 588 pyss our 1 2 Ri esmas 999999 p 8 xg E DVSS1 Pp 98 4 p Pos 2 P5 6 R23 F x 3 AVSS 23235 e 5 Bo P54 55 P5 5 R13 b x ii VREF P5 5 7 8p ROS P5 4 COM3 VREF VeREF Q9 10 Pr Paa 54 1 ps COM VeREF HI Rees P52 di jp p _P86 __ P52 53 VREF P52 d x P5 3 HEADER 6x2 SM P51 e na SN BETA Rai P42 9 13 i b COM P5 0 S1 5 E ae 0 T 17 38 Pas 833 yg 32 22uF Pis _q i 20 pisa FR a mb B1 PAZ 46 lago Sal 4 e Pi1 g Pies gt P4 7 634 31 Mb ER 23 24 RF B48 41 p4 Gjsa5 S30 42S AL 95 26 Pp E P45 aa b _ P6LEDO P4 5 536 MSPEA4S s29 45 FUB PLEDS gz p P6LED2 DET B KOT P44 49 p4 41897 S28 A 2920 CLK OUT 213507 p4 a sag s27 22 _S2_ d m js m aci 237 pags ig s26 38 _ 28 BEE ds ap an STROB BATA Pat 25 E PE 35 36 Pa DATA 53 P4 0 S24 3 S23 O37 3892 S23 O39 40 s22 4522 MODE 64 33 s MODE P3 7 S21 DK CLK 4 65 bac Sop 2 s2 Wc HEADER 20X2 STDBY STDBY 88 p35 x5 sig psl ild yoe
6. IND SMD 0603 2 650mA 31 1 10nH MURATA LQW1608A10NGOO 10nH L4 IND SMD 0603 5nH mA 32 1 6 8nH MURATA LQW1608A6N8D00 6 8nH L5 33 6 0 AVX CJ10 000 T RES 0603 5 0 OHM R6 R29 R31 R34 R41 R42 34 1 220K RES 0603 5 220K OHM R7 R13 R14 R15 R16 R17 R18 R 35 9 10K RES 0603 5 10K OHM 19 R20 R33 36 1 6 8K RES 0603 596 6 8K OHM R9 37 1 18K RES 0603 5 18K OHM R10 38 1 41K RES 0603 5 1K OHM R11 R21 R22 R23 R24 R25 R26 39 100 RES 0603 5 100 OHM R27 R28 40 1 82K RES 0603 5 82K OHM R30 PCB Hardware Overview R32 R35 R36 R37 R38 R39 41 8 10 RES 0603 5 10 OHM R43 R44 42 l 4 1 RES 0603 5 1 OHM R40 SW DIP 4 X SPST 24V 25mA 47 1 A6E 4104 OMRON AGE 4104 TTH SWI SW PB SPST NO SOMA 24V 48 4 PBSPST NO OMRON B3W 4050S TTH SW2 SW3 SW4 SW5 49 1 EG1218 E SWITCH EG1218 SW SLIDE SPDT PCB 30V 0 2A SW6 IC RF XCVR 860 930MHZ 50 1 TRF6901PT TI TRF6901PT FQFP48 U1 IC MICROCONTROLLER MIXED SIGNAL 16 BIT RISC 32KB 51 1 MSP430F449 TI MSP430F4449IPZ FLASH FQFP100 U6 CDSCA10M7GA119 CER DISCRIMINATOR SMT 52 1 10 700MHZ MURATA RO 10 700MHZ Y1 CAL CRYSTAL CCL SM7 XTAL SMT 20 0000MHZ LCC4 53 1 20 000MHZ LAB 20 00000MHZ J15F 7X5MM Y2 54 1 32 768KHZ CITIZEN CM202 32 768KDZFT XTAL SMT 32 768KHZ CM202 Y4 4 7 Alternate Hardware Configurations The MSP TRF6901 DEMO kit is preconfigured to function under the following assumptions US ISM band
7. Part number ISM Band RS 232C Port MaxRad www maxrad com MEXR902SM US Mobilemark www mobilemark com PSWN3 925S US PSTNS 900S European W Badland Ltd www badland co uk Various models US European Radiall Larsen www radialllarsen com Various models US SPDA24832 European Provisions for communicating to the on board processor through the RS232 serial link are designed onto the board Populate the appropriate parts shown in the schematics for the physical link including the Texas Instruments MAX3232 component The UART driver must be implemented in firmware On Board LDO Regulator In normal operation the battery voltage is directly connected to the power input to the processor through R31 Provision for LDO usage is provided in cases where higher voltage from an external supply is used instead of on board battery To add an LDO regulator remove R31 and install U3 with a Texas Instruments TPS76330DBV component The boards are shipped from factory with no installed LDO High Frequency Crystal SAW filter The board has a foot print for high frequency crystal operation Y3 as well as the low frequency crystal operation The factory default uses standard 32 kHz watch crystal Y4 for low frequency operation Internal frequency multiplier is used to generate system clock frequency of 2 4576 MHz A SAW filter is typically used to band limit the received RF signal to reduce the interference from RF energy in the frequency
8. ti com Automotive www ti com automotive DSP dsp ti com Broadband www ti com broadband Interface interface ti com Digital Control www ti com digitalcontrol Logic logic ti com Military www ti com military Power Mgmt power ti com Optical Networking www ti com opticalnetwork Microcontrollers microcontroller ti com Security www ti com security Telephony www ti com telephony Video amp Imaging www ti com video Wireless www ti com wireless Mailing Address Texas Instruments Post Office Box 655303 Dallas Texas 75265 Copyright 2004 Texas Instruments Incorporated Preface Read This First About This Manual This document presents the contents of the TRF6901 demonstration and development tool kit The user s manual provides a thorough understanding on how to operate the MSP TRF6901 DEMO kit and provides a detailed description of its hardware and software Some level of product understanding regarding the MSP430F449 and the TRF6901 is required to obtain the full benefit of this user s guide How to Use This Manual Different topics covered in this manual may require different levels of expertise If this is the first time you are using the MSP TRF6901 DEMO kit you should start with the first three Chapters Chapter 1 TRF6901 Demonstration and Development Kit Overview provides a general overview of the kit Chapter 2 Demonstrating and Chapter 3 Prototyping are focused on how to operate the kit If your ultimate goal is
9. 03 Eneet 2 of CNOWIRE Technology 1400 Coleman Ave Bldg G 22 Santa Clara CA 95050 D E FLI SFECV107MS2S A c5 BW230K E rw Sour EF EIN C2 DNP 6 82pF ca 82pF 120pF 12 47uH LQG2104R7NO0T1 e MxoUT CO 4 IEIN2 SMA EGDE cs u ara BE FAA 15pF 4 7uH C7 LQG21C4R7NO0T1 68pF MXVOC 4 c9 ANT DET Ma BE4 N BEL gt et XII gPa I DEMVCC 47nH 22pF L4 Bl a 10nH FILTER 915MHz L3 Bi 2 AFO915MAZON TO11 LQW1608A10NG00 gt Prassi 8 2nH uj C39 FILTER LQW1608A8N2D00 RE2 E da d d he 3 7MHZ B W 1 ut m w Spp c 1000pF 88 5 225 8 22 220K C25 4 mani SS 0 Di O gt 68 rss_our xx crue S ome E c8 0 5pF p LNAN2 Z5 5 H B ZU LPEN BES BES 4 1 EH i PAOUT 15pF E PA vcc LPF our 35 LEEQUT 2 2pF L5 a A 6 8nH A vco vcct CER Dis 5 q CER t LQW1608A6N8D00 401 vco_vece TREGSBTET sic_cap 4 Yi
10. 1 2 second in between Once the four buttons are pushed Board A initiates the transmission and waits for a reply Once the transmission is received by Board B the LEDs are turned on in the same sequence as the buttons were pushed at the transmitter side Immediately after the last LED is displayed respond by pushing the buttons in the exact sequence that the LED is displayed on Board B If the response sequence matches the green LED on Board A lights up If there are errors due to bad transmission lost transmission or not matching response sequence the red LED lights up This completes the round trip RF communication demonstration On completion both boards go back to listen mode to accept a new sequence 2 2 4 RSSI Indicator The boards are equipped with a receive signal strength indicator that will illustrate the signal strength on the receiver 4 levels are used to indicate signal strength Red is the lowest and means no signal received at all while green indicates the highest level of signal strength The RSSI will show transmission activity when the other board is transmitting a data stream on the same DIP switch configuration or there is another external source interfering with that channel 2 2 5 Error Conditions Cycle power the system to reinitialize the hardware if you get error conditions that persist Error conditions are defined as lost communication mismatch in response sequences or response time outs 2 5 Ch
11. 435 TEXAS INSTRUMENTS TRF6901 with MSP430 Demonstration and Development Evaluation Kit User s Guide June 2004 Digital Radio RF Group SLWU008B IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl reserve the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty Except where mandated by government requirements testing of all parameters of each product is not necessarily performed TI assumes no liability for applications assistance or customer product design Customers are responsible for their products and applications using TI components To minimize the risks associated with customer products and applications customers should provide adequate design and operating safeguards TI does not warrant or represent that any license either express or implied is granted under any
12. 6035A2R2CAT2A 2 2PF C14 13 1 150pF AVX 06035A151FAT2A CAP CER 0603 50V 196 150PF C15 CAP CER 0603 50V 596 14 3 1000pF AVX 06035A102JAT2A 1000PF C16 C21 C39 C19 C23 C30 C31 C33 C34 C 37 C40 C41 C43 C44 C45 C4 CAP CER 0603 16V 10 6 C48 C49 C50 C51 C52 C53 15 24 1uF AVX 0603YC104KAT2A 0 1UF C55 C56 C57 C58 C59 CAP CER 0603 50V 10 16 1 OtuF AVX 06035C103KAT2A 0 01UF C22 CAP CER 0603 50V 25PF 17 1 0 5pF AVX 06035A0R5CAT2A 0 5PF C24 CAP TANT 3216 16V 10 18 4 1 0uF KEMET T491A105K016AS 1 0UF C26 C27 C28 C29 CAP CER 1210 16V 20 80 19 4 22uF CAL CHIP GMC32Z5U226Z16NT 22UF C32 C42 C47 C60 CAP CER 0603 50V 5PF 20 2 10pF AVX 06035A100DAT2A 10PF C36 C35 DIODE LED T1 RED 12 5MCD 21 2 RED LITEON LTL 4222N 20MA D8 D1 DIODE LED T1 YEL 12 5MCD 22 2 YEL LITEON LTL 4252N 20MA D2 D4 DIODE LED T1 ORN 12 5MCD 23 2 ORN LITEON LTL 4296N 20MA D7 D3 DIODE LED T1 GRN 12 5MCD 24 2 GRN LITEON LTL 4232N 20MA D6 D5 DIODE SCHOTTKY 20PIV 1A 25 1 MBRM120LT3 MOTOROLA MBRM120LT3 DO 216AA D9 SFECV10 7MS2S A FILTER BP SMT 10 7000MHZ 26 1 SFECV10 7MS28 A MURATA TC CEN 230KHZ BW FL1 IND SMD 0603 2 380mA 27 1 47nH MURATA LQW1608A47NGOO 47nH JP1 28 1 HEADER 7X2 SAMTEC TSW 107 07 T D CONN HDR P 14 7X2X0 1 TTH J2 IND SMD 0805 3096 30mA 29 2 4 7uH MURATA LQG21CAR7NOOT1 4 7UH L2 L1 IND SMD 0603 5nH 650mA 30 1 8 2nH MURATA LQW1608A8N2DO0 8 2nH L3
13. 6901 Block Diagram 10 7 MHz Ceramic Ceramic IF Filter Discriminato a a 5 2 el fa al f a z 5 lt 9 lz e gl jo x SM L a lo Z ju ol u B 47 44 43 35 37 39 34 Can SR f e LL ATTI ee aa LNA IN1 LNA Mor um RF SQ 33 RX DATA IN ra X f Quadrature Data Slicer Py 860 MHz to 930 MHz Rss Demodulator i RSSI OUT DET OUT 251 DC DC IN DC DC DC DC OUT Converter PA OUT 4 860 MHz to 930 muzi typical 9 dBml a Ew Div CTRL Me CLOCK Counter Serial 2 DATA Interface 2 STROBE IN 7 STDBY IB 21 Ri ie bare 2 52 D Ze CLK OUT p e XTAL SW Loop Filter x E 4 3 MSP430F449 Block Diagram Figure 4 2 shows the block diagram of the MSP430F449 microcontroller IC 4 2 PCB Hardware Overview Figure 4 2 Block Diagram of the MSP430F44x XIN XOUT TCLK DVcc DVss AVcc Ass RSTINMI Ps P6 P3 P4 Pi P2 12 Bit ADC XT2IN SMCLK 4 Ay 8 Channels XT20UT MAB 17 a EME te LE uL mend is US HH Ed IAEA H times c 2 Hz Per ANE ARE 16 Bit MDB 8 Bit i T Mm til JU ENTI U U U i TMS Multiply il Ji Li KI TCK MPY MPYS Watchdog Timer B7 Timer S 71 ra Baik MAC MACS Timer Comparator ir eee l 3 CC Reg A 1 Interrupt 8x16 Bit 15 16 Bit WW Vector 1648 Bit Reg 16x16 Bit 4 4 Demo Board Schematics All the schematics for the demonstration boards can be found at http www s ti com sc techzip slwc036 zip 4 5 Top and
14. A 3 E WA wa All res onbe Button 3 sec timeout 4 ON Local Button Initiated COM x P Ue e Transmit Packet A 1 f d No Lut 5 2 a A Received response packet 5 second timed out ee ee V LED_Response _Result y Neo Pi Software Overview 5 3 Wireless Protocol Architecture The wireless data communication protocol is digital FSK at 38 400 bits per second NRZ The communication protocol used for the demonstration board includes preamble packet start bit and word synch bit as illustrated in Figure 5 2 Figure 5 2 Communication Protocol k Pre Amble Packet Start Bit WordO Word1 1 0 1 fae 4 4 4 ol ve 0 fitt Word0 Synch Bit Word1 Synch Bit Bit Width 26 us Communication Protocol Preamble The function of the preamble is to train the receive hardware to set the proper threshold to extract 1 and O patterns The preamble typically consists of a train of alternating 1 and 0 A longer preamble may give better performance at a cost of more time needed to deliver the equivalent packet For the current design the preamble is 100 bits long for 2 6 ms duration Shorter length may be used for more time critical requirements 5 3 1 Packet Start and Word Synch Bits The packet start bit and the word synch bit are used by the receive routine to adjust timing for sampling the incoming data bit stream The packet start bit occurs once at the beginning of th
15. Bottom Silk Screen and Drawing Figure 4 3 shows the top side silkscreen of the demo board and Figure 4 4 shows the bottom side silkscreen Figure 4 3 Top Side Silk Screen TRF690 de NSP4J10F497 DENU BD ya ooonpwa c1 v GENE ER fa RE OHOOHO G FL Lan 4 3 PCB Hardware Overview Figure 4 4 Bottom Side Silk Screen EI E e e m 7 mo m e on ei mesi weet wee 3 E mil vun ge MITIN m wi gaman e sidi a I al mr 18 ODE MAA AAK KAKAK KAKA EARS SO seeeeececeesccescseeeen 4 4 4 6 Parts List PCB Hardware Overview Item Qty Value Source Part Number Description Reference MEMORY PROTECTION BATTERY HOLDER 2 X AAA 1 1 BAT2 CELL DEVICES BC2AAAPC PCB MOUNT BAT1 CONN COAX SMA EDGE SMT 2 1 0 062THK PCB CO1 CAP CER 0603 50V 25PF 3 1 4 7pF AVX 06035A4R7CAT2A 4 7PF C2 4 82pF AVX 06035A820JAT2A CAP CER 0603 50V 5 82PF C3 C5 5 3 15pF AVX 06035A150GAT2A CAP CER 0603 50V 296 15PF C18 C4 C8 6 1 120pF AVX 06035A121JAT2A CAP CER 0603 50V 5 120PF C6 7 2 68pF AVX 06035A680JAT2A CAP CER 0603 50V 5 68PF C7 C17 8 1 22pF AVX 06035A220FAT2A CAP CER 0603 50V 1 22PF C9 CAP CER 0603 50V 25PF 9 2 2 7pF AVX 06035A2R7CAT2A 2 7PF C11 C10 10 2 100pF AVX 06035A101FAT2A CAP CER 0603 50V 196 100PF C20 C54 CAP CER 0603 50V 596 11 1 2200pF AVX 06035A222JAT2A 2200PF C13 CAP CER 0603 50V 25PF 12 1 22pF AVX 0
16. ED IMPLIED OR STATUATORY INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEXAS INSTRUMENTS ACCEPTS NO LIABILITY WHATSOEVER ARISING AS A RESULT OF THE USE OF THESE BOARDS The fee associated with the demonstration boards is a partial nonrecurring engineering fee NRE to partially defray the engineering costs associated with the board development and applications support for the RF integrated semiconductor product The demonstration board is a tool for demonstrating and evaluating the RF semiconductors supplied by Texas Instruments The demonstration board is supplied to prospect component customers to provide services and software allowing the prospect customers to evaluate the RF semiconductors in products they would build The demonstration board may be operated only for product demonstration or evaluation purposes and then only in nonresidential areas Texas Instruments understanding is that the customers products using the RF parts listed shall be designed to comply with all applicable FCC and appropriate regulatory agency requirements and will upon testing comply with these requirements Operation of this device is subject to the conditions that it does not cause harmful interference and that it must accept any interference Contents TRF6901 Demonstration and Development Kit Overview 1 1 al JDeSETIDIODPD sae ape ete Abe Mots ian Cedere to
17. IXX NUMBER ASS DESIGNATION AND SUSASSEMBLY GAWA NENGGE SG LP ISSUED IN SINGT EN a A pa e 5 WHOLLY IN ANY MANNER WITHOUT PRIOR EXPRESS WRITTEN APAVD B 1 0001 1 SCH 01 A DESIGNATION AUTHORIZATION OF CNOWIRE TECHNOLOGY INC x KK Date Friday April 25 2003 Bheet I o E LED1 LED2 R21 D8 LEDRED il 100 RED R22 LEDORN we ORN 100 PELEDIS 0 R23 Lame MT LED3 GRN zd 100 gt R27 LEDA LEDYEL A YEL 100 RSSI GRN vec R24 GRN 100 RSSI YEL D4 R25 P6LED1 4 i YEL 100 RSSI ORN D3 R26 P6LED2 4 4 ORN 100 RSSI RED D1 R28 P6LED3 d RED 100 R20 10K ui 14 pS Fsel1 3 Fsel2 tl Fsel3 44 Fsel4 A6E 4104 VCC R13 R14 R15 R16 10k 10k 10k 10k SW5 o 1 RED BUTTON 4 BUT1 PB SPST NO 4 ORANGE BUTTON i L BUT2 PB SPST NO 4 SW3 1 GREEN BUTTON A 1 4 BUTS PB SPST NO d SW2 YELLOW BUTTON H S Y l BUTA PB SPST NO 1 C26 C27 C28 C29 10uF 10uF 1 0uF 10uF TTNG 10 TR 10 TS 10 Tr 10 16V 16V 16V 16V 4 4 Title NA ree OVER a TAFGYDLUMSEFA49 DEMO BD SN EEE o Pa Demen Naba y WHOLLY IN ANY MANNER WITHOUT PRIOR EXPRESS WRITTEN B 1 0001 1 SCH 01 A AUTHORIZATION OF CNOWIRE TECHNOLOGY INC Date Friday Apri 25 20
18. If You Need Assistance For more design and product information related to the TRF6901 and the MSP430 go to the following two web sites L http www msp430 com L http www ti com ismrf FCC Warning Disclaimer This equipment is intended for use in a laboratory test environment only It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are designed to provide reasonable protection against radio frequency interference Operation of this equipment in other environments may cause interference with radio communications in which case the user at their own expense will be required to take whatever measures may be required to correct this interference Please note that the enclosed demonstration boards are experimental printed circuit boards and are therefore only intended for device evaluation We would like to draw your attention to the fact that these boards have been processed through one or more of Texas Instruments external subcontractors which have not been production qualified Device parameters measured using these boards are not representative of any final data sheet or of a final production version Texas Instruments does not represent or guarantee that a final version will be made available after device evaluation THE DEMONSTRATION BOARDS ARE SUPPLIED WITHOUT WARRANTY OF ANY KIND EXPRESS
19. LYRA A 1 2 1 3 Equipment Requirements 2 mr 1 2 TRF6901 Demonstration and Development Kit Overview 1 1 Description 1 2 Contents The MSP TRF6901 DEMO kit is used to demonstrate a bidirectional RF radio frequency link without the need of a personal computer and to prototype by downloading new software code to the MSP430F449 using a JTAG connector The schematics and layout of the board can be used as a reference design if desired limited by the software system parameters provided for the demonstration Contained within the TRF6901 demonstration and development kit are the following Q Two TRF6901 demonstration boards Q This user s guide Software code is not included in the kit Software and hardware documentation related to this kit can be downloaded at http www ti com ismrf 1 3 Equipment Requirement The following equipment is not included in this kit and is required to operate the MSP TRF6901 DEMO kit D Four 4 AAA batteries L1 MSP430 bus expansion cable for the JTAG connector required only for prototyping purposes Chapter 2 Demonstrating This chapter explains how to operate the MSP TRF6901 DEMO kit to demonstrate a RF bidirectional link Topic Page 2 1 Board DES CPI nana a aa ana gen anana aa nak Me a a aa mageh aaa 2 2 2 2 Operatio nt sanane aa E a a na aa Ne aa aa ND aaa Na AA EE 2 3 2 1 Demonstrating 2 1 Board Description The two boards that you have recei
20. NRZ no return to zero FSK frequency shift keying 38 4K bps DC eo L On board PCB antenna The kit can cover some limited alternate configurations These options are covered in this section 4 7 1 European ISM Band European 868 MHz to 870 MHz ISM band configuration is not covered in the pre configured system but it can be modified by changing software variables the JTAG can download new software configurations No hardware changes are needed but the antenna matching is not optimized for this band Go to www ti com ismrf for more information on this option 4 7 2 External Antenna 4 6 Significant range performance may be achieved when an external antenna is used The actual performance improvement will depend on the antenna design and proper impedance matching A solder pad for SMA connector is designed into the board The antenna can be mounted onto the SMA connector Jumper JP1 setting must be moved to connect the external antenna to the rest of the RF front end Shorting pins 2 and 3 of JP1 with a 0 Q resistor connects the internal antenna To connect the external antenna open pins 2 and 3 and short pins 1 and 2 with a 0 O resistor Figure 4 5 shows the pin out configuration at the silk screen Table 4 1 provides some antenna supplier information PCB Hardware Overview Figure 4 5 JP1 Pin Out Configuration Table 4 1 Antenna Suppliers 4 7 3 4 7 4 4 7 5 4 7 6 Supplier Web Site
21. ORD unsigned int rcv MAXWORD buf Main int errorcode errorcode receive RF buf packetsize buf rcv Packet stream stored in buf rcv Packet size stored in buf packetsize 5 5 3 send RF unsigned int unsigned int 5 6 This function is used to transmit a packet of wireless data stream Here is an example on how it is used main buf xmit 1 ACK CODE buf xmit 0 ACK CODE ComFlag rf X buf full enable transmitter send RF 4 buf xmit REVISIONS ZONE RE DESCRIPTION DATE APPROVED vge NONE A INITIAL RELEASE 2 31 03 RPW R31 0 swe Da a OPTIONAL LDO OPTIONAL DN BAT 1 BAT SW BAL tty ou bL 4 REG t EXAMS E MBRM120LT3 SP EN GND pot POB d EG1218 C42 C32 4 9152MHZ l 22uF TPS76330DBV le 22uF C35 Ya 2468 AP 20 80 T 20 80 vec 10pF ier 16V I vec
22. Step 9 In the Workbench use FILE gt EXIT to exit the Workbench The MSP430 is now programmed with the demo code and ready to operate 3 3 Chapter 4 PCB Hardware Overview This chapter provides the default PCB hardware documentation in detail and provides alternate configurations that the user may want to implement Topic Page 4 1 Hardware Overview eene 4 2 4 2TRF6901 RF Block Diagram sana anan anus nnne 4 2 4 3 MSP430F449 Block Diagram eese nnns 4 2 4 4 Demo Board Schematics esee 4 3 4 5 Top and Bottom Silkscreen and Drawings eene 4 3 A TS rotor atea to RR EO tcr T 4 5 4 7 Alternate Hardware Configurations eee 4 6 PCB Hardware Overview 4 1 Hardware Overview The TRF6901 ISM band transceiver IC operates from 860 MHz to 930 MHz It has low power consumption and an operating voltage of 1 8 V to 3 6 V It uses an integer N synthesizer and supports FSK operation Other features include an on chip reference oscillator phase lock loop brownout detector and XTAL software trimming The TRF6901 demonstration and development kit MSP TRF6901 DEMO provides a stand alone demonstration of a bidirectional link using the MSP430F449 and the TRF6901 4 2 TRF6901 RF Block Diagram Figure 4 1 shows the block diagram of the TRF6901 ISM transceiver IC Figure 4 1 TRF
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24. ag aaa daa aga da aaa da ga a aa ai da eaaa aaa daa 3 2 4 1 TRF6901 Block Diagrama aii anana nne wana nn anana C d ma A EFE bra DA dap GE 4 2 4 2 Block Diagram of the MSP430OF4AX 0 ss sseeeennnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnan nn nn nn nn 4 3 4 3 Top Side Silk Screen sisia ikan geese daa agan a anaa Na a ina Ada Sore ee Gae aaa eorr Enter poen eorr Saar is 4 3 4 4 Bottom Side Silk Screen nc 4 4 4 5 JP1 Pin Out Configuration s seen nnn anana nne anana nana nne een nennen nenne nnn 4 7 5 1 Game Application State Machine Architecture eeee sss 5 2 5 2 Communication Protocol 1 an aga orn e edo ooo eau ro eoa reet ears e RESP nin 5 3 5 3 6 Byte Transmission Data Packet ss sssseeemmmnnnnnzzznnnnnnnznnnnnnznnnnnnnnnnnnnnnnnzzzzz 5 4 9 4 4 Byto AGK Packet iena vi suwun sedan aa nga eni agawe ngga d a la a C RR exten 5 4 Tables 2 1 4 bit DIP Switch SW1 Frequency Configuration sse nen en nn enza 2 4 4 1 Antenna Suppliers ss do enero ie a aa aa aa a aa naja a Gala aa ven 4 7 5 1 TRF6901 Game Application Register Values ss 5 5 vii Chapter 1 TRF6901 Demonstration and Development Kit Overview This chapter provides an overview of the TRF6901 demonstration and development kit Topic Page IRD OS Cri Aue ornato cobijo Fn 1 2 M2 eTe T0
25. apter 3 Prototyping This chapter explains how to operate the MSP TRF6901 DEMO kit to prototype new applications Topic Page 3 1 Connecting to the MSP430 JTAG eere 3 2 3 2 Loading the MSP430 With the Firmware eene 3 2 3 1 Prototyping 3 4 Connecting to the MSP430 JTAG The MSP TRF6901 DEMO is designed for rapid application development This is made possible by the MSP430 MCU with flash memory that can be erased and programmed several times Additionally the on chip emulation logic allows real time debugging and fast code development BEFORE CONNECTING TO THE MSP430 JTAG THE 2 AAA BATTERIES MUST BE REMOVED OR THE ON OFF SWITCH MUST BE IN THE OFF POSITION Connector J2 provides access to the JTAG port of the MSP430 device in the MSP TRF6901 DEMO kit The MSP FET430 flash emulation tool interface board MSP FETP430IF not included in this kit connects to J2 and allows real time in system emulation Programming the MSP430 assembler C source level debug single stepping multiple hardware breakpoints full speed operation and peripheral access are fully supported in system using the JTAG The MSP TRF6901 DEMO and the MSP430 Flash Emulation Tool FET provide everything that is required to develop an entire project Figure 3 1 shows the connections of the MSP TRF6901 DEMO to the JTAG cable provided by the MSP430 FET interface board Figure 3 1 JTAG Connector
26. ation demonstrating a bidirectional wireless link Each board comes with identical software The software was developed using IAR embedded workbench www iar com Below is the software files used A trf6901_demo prj Project file D trf6901_demo c main body of the program written in C languge All the subroutines are called from this program listing CQ trf6901 s43 assembly subroutine that is utilized to configure the registers of the TRF6901 component D radio01 s43 assembly subroutines used to execute wireless transmission and reception commands 5 2 Flowchart Upon power up initialization a state machine is established to run the demonstration function Figure 5 1 illustrates the state machine flowchart Buttons and timer functions are handled through interrupt subroutines Figure 5 1 Game Application State Machine Architecture yc e Power N Up Na vu 1 Initalize Y fo N 4Receive Normal Received remote button packet i PS E 4 PO hut 4 ES Local Button Activated N N X BN E y N pra LED_Remote_Que Local Button Active N J N N A ai L Turn on LED 4 Response to Remote button complete Pa A l Wi i N All 4 button pushed 3 sec timeout Wait For Local Y Done P Button Response we A 7 Ss A ae N N P d Receiver Wating For 4 EN ji 4 _Response j NG
27. band other than the ISM band The SAW filter from Murata SAFC915MA70N TC11 gives a pass band typical of 902 MHz to 928 MHz while providing about 30 dB attenuation at stop band The part is also specified at 4 5 dB signal loss in 4 7 PCB Hardware Overview the pass band This translates to corresponding loss in range of operation The SAW filter is not installed for the factory default to give optimum range rather than optimum immunity There are other cost effective implementations that address the same objective with lower dB signal loss 4 7 7 MSP430 Disable 4 8 In normal operation the MSP430 on board processor controls the TRF6901 component and the user interface During evaluation the RF section can be driven directly by external control signals This can be accomplished by removing R42 which disables the voltage supply to the MSP430 processor The TRF6901 can then be accessed directly using the TRF6901 header at J5 Chapter 5 Software Overview This chapter describes the software flow used for the demonstration application that is preconfigured in each demonstration board Topic Page Sil Software D scripti On nin 5 2 5 2 Elowchante eee EI IE 5 2 5 3 Wireless Protocol Architecture eese 5 3 5 4 TRE6901 Registersc NA MA 5 4 SOLWVIFGlOSS Subroutinesa A aaa aa AN anana na aan MENE E NE 5 5 5 1 Software Description The software implements a simple game applic
28. e valid data to indicate the start of the data and end of preamble The synch bit is used to resynchronize the bit stream and the data sampling timer Over time the receive timing could shift in phase relative to transmit timing due to the small variation in the tolerances of the components This shows up as an error in sampled data The problem gets worse as the packet size increases Resynchronization minimizes this drift over time Although resynchronization can be done at byte boundary word boundary resynchronization is slightly more efficient 5 3 2 Wireless Data Stream The wireless data stream implemented for the game application was implemented as follows D User initiates an RF transmission on Board A by pushing four buttons in any sequence 11 User sequence is sent to Board B using the transmission data packet described in Figure 5 3 embedded in the communication protocol described in Figure 5 2 The transmission packet includes a header four bytes with the button IDs and a checksum 5 3 Figure 5 3 6 Byte Transmission Data Packet L Board A goes to a wait state where it waits to receive an acknowledgement packet sent by the other board The ACK acknowledgement package is illustrated in Figure 5 4 The ACK package is embedded in the protocol described in Figure 5 2 If Board A does not get the ACK package in the preprogrammed waiting cycle then it retries for up to six times 1 Note that each time that Board B receiv
29. egisters of the TRF6901 component Here is a sample code on how to use this function so that you can program all the four registers struct trf69 control unsigned int a word 1 a word h b word 1 b word h unsigned int c word 1 trf6901 main c word h d_word_l d word h unsigned long trf69 int pointer trf69 REGISTER A REGISTER A is a constant trf6901 a word h unsigned int trf69 gt gt 16 trf6901 a word 1 unsigned int trf69 program TRF69 trf6901 a word h trf6901 a word 1 trf69 REGISTER B REGISTER B is a constant trf6901 b word h unsigned int trf69 gt gt 16 trf6901 b word 1 unsigned int trf69 program TRF69 trf6901 b word h trf6901 b word 1 trf69 REGISTER C REGISTER C is a constant trf6901 c word h unsigned int trf69 gt gt 16 trf6901 c word 1 unsigned int trf69 program TRF69 trf6901 c word h trf6901 c word 1 trf69 REGISTER D REGISTER D is a constant trf6901 d word h unsigned int trf69 gt gt 16 trf6901 d word 1 unsigned int trf69 program TRF69 trf6901 d word h trf6901 d word 1 5 5 2 receive RF unsigned char unsigned int This function is used to receive a packet of wireless data stream Here is an example of how it is used struct RF XMIT PACKET int packetsize unsigned int xmit MAXW
30. es a transmission packet it acknowledges back to Board A Figure 5 4 illustrates the ACK packet Figure 5 4 4 Byte ACK Packet 5 3 3 Checksum Byte Each packet has a checksum byte at the end of the data packet see Figure 5 3 The checksum byte is calculated by summing the first 5 bytes of the packet and ignoring the overflow 5 4 TRF6901 Registers The TRF6901 needs to have its four A thru D registers initialized using the serial port interface SPI so that it can operate as desired Table 5 1 shows the values used on the four registers of the TRF6901 when the program initializes 5 4 Header Button 1 Button 2 Button 3 Button 4 Checksum Byte Byte OxFE ID Byte ID Byte ID Byte ID Byte 0x06 0x06 0x06 0x06 Table 5 1 TRF6901 Game Application Register Values Software Overview Register Parameter Value A PA attenuation 0 dB Mode 0 Tx Charge Pump 0 5 mA DC DC Off B PA attenuation 0 dB Mode 1 Rx Modulation FSK Brownout Threshold 1 8 V Brownout detector Off C Reference Divider 60 Reference Frequency 333 333 kHz D Crystal Tune 20 23 pF 5 5 Wireless Subroutines Reset Signal for PFD Derived From Prescaler The game application uses C functions to address the different communication tasks required to receive and send data Read ahead for a brief description of these subroutines 5 5 1 program trf69 This function configures one of the four A thru D r
31. one the following L Slide the on off switch to off L Place two AAA batteries on each demonstration board D Have the same 4 bit DIP switch SW 1 configuration on both boards See Table 2 1 for a list of the US ISM band frequencies supported using the 4 bit DIP switch SW1 It does not matter what 4 bit DIP switch setting you choose to operate the demo as long as both boards have the same configuration Table 2 1 4 bit DIP Switch SW1 Frequency Configuration 1234 SW1 setting 1 On 0 Off Frequency MHz 0000 902 0001 903 0010 904 0011 905 0100 906 0101 907 0110 908 0111 909 1000 910 1001 911 1010 912 1011 913 1100 914 1101 915 1110 916 1111 917 2 2 2 Power Up Slide the power switch to ON All the LEDs should blink to indicate power up condition After the power up initialization both units go into receive mode to monitor for any activities The RSSI indicator LED is lit up to indicate the signal strength in the frequency of operation Red indicates the lowest signal strength while green indicates the highest 2 4 Demonstrating 2 2 3 Wireless Demonstration Either board can initiate a wireless communication For explanation purposes call Board A the board that you use to transmit the first four button sequence and Board B the board that you are using to receive the first four button transmission Use Board A to start the wireless demonstration by pressing any sequence of four buttons with about
32. rts List idu kaa M 4 5 4 7 Alternate Hardware Configurations seren nennnnn nn renti 4 6 4 7 1 European ISM Band anida 4 6 4 1 2 External Antenna etd eene ac 4 6 43 RS 232C Porta iii si eR Si Uh Rmi un eun 4 7 4 7 4 On Board LDO Regulator saari a AKE NG na A AEE Aa Gagak a a 4 7 4 7 5 High Frequency Cystal ssssssssseseeeene nennen nemen nnns 4 7 AROS SAW Filter uiii te ote tin 4 7 ALLE MSP4303Disable eorr a pem oret a ee tae 4 8 Software Overview iksi aaa na aret en kh aue kae deus tenes Eae ERR Na aa a bla SERERE suede cence slecertesed tortie 5 1 5 1 Software Description sss nennen nn 5 2 5 2 EW Crit A divs ue ee be E Ced d ct eed dede sa e e E 5 2 5 3 Wireless Protocol Architecture essen 5 3 oe A eed Rr Mee MR RN MN ME ARS 5 3 5 3 2 Packet Start and Word Synch Bits sen nn nnnnn eene 5 3 5 3 3 Wireless Data Stream nanna 5 3 9 3 4 CHECKSUM Byte ecce eene eee de t eo 5 4 Did TRF6901 ReglSleIs uoce t de rut mayen Go generet edite dus eee 5 4 5 5 Wireless Subroutines sss mener 5 5 5 511 Program MEI jragan Ag a a en aan BAR ta m 5 5 5 5 2 receive RF unsigned char unsigned int 5 6 5 5 3 send RF unsigned int unsigned int 5 6 vi 2 1 Top Side and Back Side Picture of the Demonstration Board 2 2 3 1 JTAG CONNECTION asa rada waana aia a aa
33. ten aede ed eA A Pee pa na in MEOS 1 2 12 Contents ite aie P ee Fi educi gute lala eMe dios Rud on 1 2 1 3 Equipment Requirement nr nnnrnnnrnnnrnnnnnnntnnnrnnzznnzztnzznnztttI 1 2 Demonstrating iii aia aaa nte A in e ae AAA AA AA a 2 1 2 1 Board Description r ka SEG Ka TG Tg Ag KE ennemis 2 2 2 2 Opera anae aaa A ag ag aga IM Na ng aa aaa a a ca 2 3 2 2 1 _ Getting Ready d ase eco etn e KEN aa JENE GA E BEN Nah eared GA Ba aa rent 2 4 2 2 2 POWER Dp zi aet tee t te NG E ids a E aa mad bl a elites vt aude aan 2 4 223 Wireless Demonstration nar 2 5 224 ROSSI Indicator erii A at a a edente e 2 5 22 5 gt Error Conditions tero imc ta done Edere fedet us 2 5 Prototyping vidriera RE Es DEP DN eaaa epa YE EFIE ERR Po SP DEDE 3 1 3 1 Connections to the MSP430 ITA titan aaa 3 2 3 2 Loading the MSP430 With the Firmware eee 3 2 PCB Hardware Overview cccceeceeee eee anna e eee anana nenen n anana nenen nana nnn nnns 4 1 4 1 Hardware Overview cccccccccccceccceccceeeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeseeeeeeeeeeneteness 4 2 4 2 TRF6901 RF Block Diagram ian Ka Nak Ek GEK Ga RR Ree 4 2 4 3 MSP430F449 Block Diagram sen ewan e nane eaaa eaaa Ree 4 2 4 4 Demo Board Schematics ccoccccccociciniconineninenenennninnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnninnnnss 4 3 4 5 Top and Bottom Silk Screen and Drawing cccccccononoconcconnnononcnnnnnnnnnncnnnnncnnnnns 4 3 4 6 Pa
34. to prototype with this kit you should then review in detail Chapter 4 PCB Hardware Overview and Chapter 5 Software Overview to get an understanding on how the wireless bidirectional link demonstration works These two chapters cover hardware and software ideas that you may require some additional level of expertise Notational Conventions ACK Acknowledgement packet JTAG Scan based embedded system emulation MSP TRF6901 DEMO TRF6901 demonstration and development kit RF Radio frequency RSSI Receive signal strength indicator Information About Cautions and Warnings This book may contain cautions and warnings Related Documentation From Texas Instruments This is an example of a caution statement A caution statement describes a situation that could potentially damage your software or equipment This is an example of a warning statement A warning statement describes a situation that could potentially cause harm to you The information in a caution or a warning is provided for your protection Please read each caution and warning carefully Related Documentation From Texas Instruments Other related documents that may be helpful are Q TRF6901 datasheet http focus ti com lit ds symlink trf6901 pdf L MSP430F449 data sheet http focus ti com lit ds symlink msp430f449 pdf TRF6901 design guide http focus ti com lit an swra035 swra035 pdf TRF6901 FAQ http focus ti com lit misc slad008 slad008 pdf
35. ved with your kit are identical Each unit has a TRF6901 single IC RF transceiver and a MSP430F449 micro controller Each board is capable of sending and receiving half duplex wireless data on the European and US ISM bands The boards are pre configured to use the 902 to 928 MHz ISM band out of the box Figure 2 1 shows a top side and back side picture of each board Figure 2 1 Top Side and Back Side Picture of the Demonstration Board 4 XeXeXoXeXoXeXeXoXoXeKoXeXeNeNeXeX eX 00000000000000 000000 TRF6901 amp MSP4310F437 DEMOJBD F 27 100011PWA 01 Rev QUIN SA IDIOT YO Y N Sd KAKANGE EEN I NANING goooooo0oo0000000000000 0000000000000000000Q 2 2 Operation Demonstrating Each board features the following functions On Off switch Battery holder stores two AAA batteries in series batteries are not included MSP430 headers used to access the I O ports of the MSP430F449 TRF6901 component Antenna selection jumper used to select either the SMA connector or PCB antenna On board PCB antenna default configuration SMA footprint connector used to add an external antenna SMA connector not included 4 bit DIP switch used in the demonstration to change the frequency configuration The MSP430 I O ports P2 3 P2 6 P2 7 and P3 0 connect to the 4 bit DIP switch Receive signal strength indicator RSSI LEDs used as the RSSI for the demonstration The LEDs are tied to the MSP430 P6 0 to P6 3 I O ports
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