APGRD003 Microchip Technology, APGRD003 Datasheet

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APGRD003

Manufacturer Part Number
APGRD003
Description
KIT TPMS REFERENCE DESIGN
Manufacturer
Microchip Technology
Type
Automotive, Tire Pressure Monitorr
Datasheet

Specifications of APGRD003

Frequency
433.92MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
PIC18F4680, PIC18F2680, MCP2030
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Tire Pressure
Monitoring System
User’s Guide
© 2006 Microchip Technology Inc.
DS51624B

Related parts for APGRD003

APGRD003 Summary of contents

Page 1

... Microchip Technology Inc. Tire Pressure Monitoring System User’s Guide DS51624B ...

Page 2

... Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. ...

Page 3

... A.9 Low Frequency Initiator Module - Bottom Layer A.10 Transponder Sensor Module - Schematic ................................................ 30 A.11 Transponder Sensor Module - Top Layer and Silk Screen ...................... 31 A.12 Transponder Sensor Module - Bottom Layer ........................................... 31 A.13 Circuit Block Figure .................................................................................. 32 © 2006 Microchip Technology Inc. TIRE PRESSURE MONITORING SYSTEM USER’S GUIDE Table of Contents ................................................ 24 ...

Page 4

... Appendix B. Bill Of Materials (BOM) ..........................................................................33 Worldwide Sales and Service .....................................................................................38 DS51624B-page iv © 2006 Microchip Technology Inc. ...

Page 5

... Appendix A. “Schematic and Layouts” – shows the schematic and board lay- out diagrams for the Tire Pressure Monitor System. • Appendix B. “Bill Of Materials (BOM)” – lists the parts used to build the Tire Pressure Monitor System boards. © 2006 Microchip Technology Inc. TIRE PRESSURE MONITORING SYSTEM USER’S GUIDE Preface ...

Page 6

... Optional arguments mcc18 [options] file [options] Choice of mutually exclusive errorlevel {0|1} arguments selection Replaces repeated text var_name [, var_name...] Represents code supplied by void main (void) user { ... } © 2006 Microchip Technology Inc. Examples ® IDE User’s Guide ...

Page 7

... Microchip consultant program member listing • Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives © 2006 Microchip Technology Inc. ® L Code Hopping Encoder“ (DS41109) EE ...

Page 8

... Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document. Technical support is available through the web site at: http://support.microchip.com DOCUMENT REVISION HISTORY Revision A (August 2006) • Initial Release of this Document. DS51624B-page 4 © 2006 Microchip Technology Inc. ...

Page 9

... Therefore, the accuracy of the measurements is not guaranteed. The user is responsible for performing the calibration routine for their applications. Please contact sensor manufacturing for additional information regarding this topic. © 2006 Microchip Technology Inc. TIRE PRESSURE MONITORING SYSTEM USER’S GUIDE DS51624B-page 5 ...

Page 10

... Apply power to the Sensor module by inserting a 3V NiHM (CR2320) battery. The LED will light to indicate that the power is supplied. DS51624B-page 6 © 2006 Microchip Technology Inc. ...

Page 11

... LIN network. The LEDs will light to indicate that the power is connected. 4. The LCD module should be powered at this time. The pressure and temperature data is displayed on the LCD for each Sensor module connected to the LIN net- work. Check power and connection if no information is shown. © 2006 Microchip Technology Inc. DS51624B-page 7 ...

Page 12

... NOTES: DS51624B-page 8 © 2006 Microchip Technology Inc. ...

Page 13

... MCP2551 for LIN or CAN communication. The Tire Sensor module contains a PIC16F684 with a MCP2030, a three-axis Analog Front-End (AFE). The analog pressure sensor used is the MS5407-AM from Intersema. © 2006 Microchip Technology Inc. TIRE PRESSURE MONITORING SYSTEM USER’S GUIDE 433.92 MHz ...

Page 14

... Wheel well Inside Inside Snr/TX Snr/TX Tire Tire Rear Rear Driver Side Passenger Side WIRING HARNESS FOR COMPLETE TPMS NETWORK LF Initiator J4 +12V DC LIN GND J2 Initiator Optional for Spare Tire Inside Inside Wheel well Tire LF Snr/TX LF Initiator Initiator © 2006 Microchip Technology Inc. ...

Page 15

... Refer to the MCP201 Data Sheet, “LIN Transceiver with Voltage Regulator” (DS21730) for more information. Refer to Appendix A. “Schematic and Layouts”. © 2006 Microchip Technology Inc. TIRE PRESSURE MONITORING SYSTEM USER’S GUIDE 433.92 MHz ...

Page 16

... After a predetermined time has expired, an error message is displayed on the LCD if all the expected messages are not received. DS51624B-page 12 LIN MESSAGE COMMAND Message Frame Header Data Synch Ident Position Mode Checksum Field Field ID ID in-frame response space inter-frame space or BREAK Field © 2006 Microchip Technology Inc. ...

Page 17

... AFE output filter on the Transponder Sensor module. Refer to 3.4.3.3 “LF Message Overview” for detail description of the LF message formatting. 3.3.4 Reference Material Refer to Recommended Reading in the Preface section. © 2006 Microchip Technology Inc. 125 kHz LIN or CAN, LIN is used for this design DS51624B-page 13 ...

Page 18

... R9, R10, R11 and R12. Refer to A.13 “Circuit Block Figure”. DS51624B-page 14 ASK PWM 2.3 - 3.3V 2.3V ~12 A μ 433.92 MHz system default is 400 μ Meters 125 kHz ~3 mVPP Meters Analog -7 bars absolute 1 -40 - 125°C © 2006 Microchip Technology Inc. ...

Page 19

... Sensor module then transmits the data to the base station via UHF (433.9 MHz) and returns to Sleep mode if no other interrupts were detected. To reduce power consumption, the pressure sensor and the op-amp for signal amplifications are normally powered off. These two devices are powered on only during measurements. © 2006 Microchip Technology Inc. DS51624B-page 15 ...

Page 20

... Messages Learn Mode Command No Recv? No Measure Battery Level Battery Level Okay? No Set Vlow Flag Transmit Data to BaseStation Enter Sleep Mode Yes Save New ID Yes No LF INT Clear Vlow Flag Measure Pressure Measure Temperature Perform Compensation Routine © 2006 Microchip Technology Inc. ...

Page 21

... OFF for the output filter time (user configurable in AFE) • Two bytes of data (maximum of 8 bytes) - Tire Location ID (user defined) - System Mode ID (user defined) FIGURE 3-3: 125 kHz Base Frequency Mode ID (1 byte) © 2006 Microchip Technology Inc. LF MESSAGE FORMAT Wake-Up 125 kHz Preamble Data Tire Location ...

Page 22

... The recommended serial resistor (R5) value should be 10 kOhm or greater to minimize the influence of the parasitic of the microcontroller pins (about 200 Ohm). DS51624B-page 18 RF MESSAGE FORMAT 16 4-10 31xTe 50% Preamble xT E Header LOGIC "0" LOGIC "1" Data Bytes © 2006 Microchip Technology Inc. ...

Page 23

... Note AN617, “Fixed Point Routines”. Refer to this application note for more descrip- tions on the 16x16 bits multiplication and 32/16 bits division routines. The flow charts for the addition routine (Figure 3-6) and subtraction routine (Figure 3-7) are included for references. © 2006 Microchip Technology Inc. DS51624B-page 19 ...

Page 24

... Measure Temperature Save Pressure and Pressure = T2P1 Temperature Data to Temperature = T2 EEPROM Measure Pressure At Pressure 2 Measure Temperature Save Pressure and Pressure = T2P2 Temperature Data to Temperature = T2 EEPROM At Temp 1 Data Saved: At Temp 1 Data Saved: At Temp 2 Data Saved: At Temp 2 Data Saved: © 2006 Microchip Technology Inc. ...

Page 25

... FIGURE 3-6: Yes Call Subtraction Routine No © 2006 Microchip Technology Inc. SENSOR_TX ADD FLOWCHART Sflag Set? No Yes data1H > data2H? No Set Aflag data1H =data1H + data2H Aflag Set? Yes Clear Sflag Clear Aflag Return data1L + data2H Is there a Carry? Yes No data1H =data1H +1 DS51624B-page 21 ...

Page 26

... Set Zflag A borrow No ocurred? Yes Set Nflag Byte1H = 2's compliment of Byte1H + 1 Byte1L – Byte2L Nflag AND borrow both = 0? No Nflag = 1? No Yes Set Sflag Zflag =1? Borrow = 1? No Yes Byte1H = Byte1H - 1 Yes Byte1L = 2's compliment of Byte1L + Return No Yes 1 © 2006 Microchip Technology Inc. ...

Page 27

... Low Frequency Initiator Module - Top Layer (with silk screen) • Low Frequency Initiator Module - Bottom Layer • Transponder Sensor Module Schematic • Transponder Sensor Module - Top Layer (with silk screen) • Transponder Sensor Module - Bottom Layer © 2006 Microchip Technology Inc. TIRE PRESSURE MONITORING SYSTEM USER’S GUIDE DS51624B-page 23 ...

Page 28

... A.2 BASE STATION MODULE SCHEMATIC (PAGE 1) DS51624B-page 24 © 2006 Microchip Technology Inc. ...

Page 29

... A.3 BASE STATION MODULE SCHEMATIC (PAGE 2) © 2006 Microchip Technology Inc. DS51624B-page 25 ...

Page 30

... A.4 BASE STATION WIRING HARNESS - SCHEMATIC DS51624B-page 26 © 2006 Microchip Technology Inc. ...

Page 31

... A.5 BASE STATION MODULE - TOP LAYER AND SILK SCREEN A.6 BASE STATION MODULE - BOTTOM LAYER © 2006 Microchip Technology Inc. DS51624B-page 27 ...

Page 32

... A.7 LOW FREQUENCY INITIATOR MODULE - SCHEMATIC GND 2 PICkit 2 DS51624B-page 28 VBAT 7 VDD 3 1 VDD 6 GND 4 GND VDD 3 2 © 2006 Microchip Technology Inc. ...

Page 33

... A.8 LOW FREQUENCY INITIATOR MODULE - TOP LAYER AND SILK SCREEN A.9 LOW FREQUENCY INITIATOR MODULE - BOTTOM LAYER © 2006 Microchip Technology Inc. DS51624B-page 29 ...

Page 34

... A.10 TRANSPONDER SENSOR MODULE - SCHEMATIC DS51624B-page © 2006 Microchip Technology Inc. ...

Page 35

... A.11 TRANSPONDER SENSOR MODULE - TOP LAYER AND SILK SCREEN A.12 TRANSPONDER SENSOR MODULE - BOTTOM LAYER © 2006 Microchip Technology Inc. DS51624B-page 31 ...

Page 36

... A.13 CIRCUIT BLOCK FIGURE Pressure Sensor DS51624B-page 32 R11 R10 CS R12 © 2006 Microchip Technology Inc. RC0 (Power) RC1 (Battery) RA1 (temperature) PIC RC2 (pressure) RA5 (op_cs) ...

Page 37

... RF-MODULE-RR3 1 J3 SIP_6 Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components. © 2006 Microchip Technology Inc. TIRE PRESSURE MONITORING SYSTEM USER’S GUIDE Description Manufacturer 0.1uF 1uF 18pF ...

Page 38

... HMTMS-111-01-G-S-230 SW404-ND Part Number A25573-ND Part Number P10323-ND P966-ND 311-1153-1-ND 495-1935-1-ND 311-1179-1-ND 495-1225-ND not assembled 10MQ100NPBFCT-ND BAV99DW-FDICT-ND 1N4148WXTPMSCT-ND 1N4750ADICT-ND CP-102B-ND TSW-106-08-G-S-RA 1-770969-0-ND 160-1179-1-ND 160-1175-1-ND MCD-L160UH Ask for Lead Free not assembled not assembled 28K0916 28K1086 28K0996 © 2006 Microchip Technology Inc. ...

Page 39

... NOT POPULATED 2 R4, R13 NOT POPULATED Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components. © 2006 Microchip Technology Inc. Manufacturer Part Number 28K1124 28K1196 28K0956 not assembled LM2937IMP-5.0CT-ND ...

Page 40

... The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components. DS51624B-page 36 Manufacturer Part Number RHOM RHM1.0KGCT-ND RHOM RHM1.0MGCT-ND RHOM RHM10.0KHCT-ND RHOM RHM100KHCT-ND YAGEO 311-10MERCT-ND YAGEO 311-47.0HRCT-ND YAGEO 311-47.0KHRCT-ND YAGEO 311-220HRCT-ND YAGEO XC998CT-ND SAMTEC TSW-106-08-G-S NEC NE94433B-ACT-ND SPC 10N298 © 2006 Microchip Technology Inc. ...

Page 41

... NOTES: © 2006 Microchip Technology Inc. DS51624B-page 37 ...

Page 42

... Fax: 886-3-572-6459 Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2006 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-3910 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris Tel: 33-1-69-53-63-20 ...

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