dw1000usermanualrev2.15

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DW1000 User Manual

Version 2.15

Page 0

DW1000 USER MANUAL

HOW TO USE, CONFIGURE AND

PROGRAM THE DW1000 UWB

TRANSCEIVER

This document is subject to change without notice

DW1000 User Manual

Version 2.15

Page 1 of 244

Table of Contents

LIST OF FIGURES ........................................................ 2

LIST OF TABLES .......................................................... 3

1 INTRODUCTION ................................................. 6

1.1 ABOUT THE DW1000 ...................................... 6

1.2 ABOUT THIS DOCUMENT .................................... 6

2 OVERVIEW OF THE DW1000 .............................. 9

2.1 INTRODUCTION ................................................ 9

2.2 INTERFACING TO THE DW1000 .......................... 9

2.3 DW1000 OPERATIONAL STATES ...................... 13

2.4 POWER ON RESET (POR) ................................ 17

2.5 DEFAULT CONFIGURATION ON POWER UP .......... 19

3 MESSAGE TRANSMISSION ................................ 24

3.1 BASIC TRANSMISSION ...................................... 24

3.2 TRANSMISSION TIMESTAMP .............................. 25

3.3 DELAYED TRANSMISSION ................................. 25

3.4 EXTENDED LENGTH DATA FRAMES ..................... 26

3.5 HIGH SPEED TRANSMISSION ............................. 28

4 MESSAGE RECEPTION ....................................... 31

4.1 BASIC RECEPTION ........................................... 31

4.2 DELAYED RECEIVE ........................................... 34

4.3 DOUBLE RECEIVE BUFFER................................. 34

4.4 LOW-POWER LISTENING .................................. 38

4.5 LOW-POWER SNIFF MODE .............................. 40

4.6 DIAGNOSTICS ................................................ 43

4.7 ASSESSING THE QUALITY OF RECEPTION AND THE RX

TIMESTAMP ................................................................ 43

5 MEDIA ACCESS CONTROL (MAC) HARDWARE

FEATURES ................................................................. 47

5.1 CYCLIC REDUNDANCY CHECK ............................. 47

5.2 FRAME FILTERING ........................................... 47

5.3 AUTOMATIC ACKNOWLEDGEMENT .................... 49

5.4 TRANSMIT AND AUTOMATICALLY WAIT FOR RESPONSE

6 OTHER FEATURES OF THE DW1000 ................... 54

6.1 EXTERNAL SYNCHRONISATION ........................... 54

6.2 EXTERNAL POWER AMPLIFICATION .................... 57

6.3 USING THE ON-CHIP OTP MEMORY ................... 57

6.4 MEASURING IC TEMPERATURE AND VOLTAGE ...... 61

7 THE DW1000 REGISTER SET .............................. 62

7.1 REGISTER MAP OVERVIEW ................................ 62

7.2 DETAILED REGISTER DESCRIPTION ...................... 64

8 DW1000 CALIBRATION ................................... 201

8.1 IC CALIBRATION – CRYSTAL OSCILLATOR TRIM ... 201

8.2 IC CALIBRATION – TRANSMIT POWER AND SPECTRUM

203

8.3 IC CALIBRATION – ANTENNA DELAY ................. 206

9 OPERATIONAL DESIGN CHOICES WHEN

EMPLOYING THE DW1000....................................... 209

9.1 OPERATING RANGE ....................................... 209

9.2 CHANNEL AND BANDWIDTH SELECTION ............. 209

9.3 CHOICE OF DATA RATE, PREAMBLE LENGTH AND PRF

209

9.4 POWER CONSUMPTION .................................. 210

9.5 NODE DENSITY AND AIR UTILISATION ................ 210

9.6 LOW–DUTY CYCLE – AIR TIME .......................... 211

9.7 LOCATION SCHEMES ...................................... 212

9.8 GENERAL CONSIDERATIONS............................. 213

10 APPENDIX 1: THE IEEE 802.15.4 UWB PHYSICAL

LAYER ..................................................................... 215

10.1 FRAME STRUCTURE OVERVIEW ........................ 215

10.2 DATA MODULATION SCHEME .......................... 215

10.3 SYNCHRONISATION HEADER MODULATION SCHEME

216

10.4 PHY HEADER ............................................... 217

10.5 UWB CHANNELS AND PREAMBLE CODES ........... 218

10.6 ADDITIONAL DETAILS ON THE STANDARD ........... 219

11 APPENDIX 2: THE IEEE 802.15.4 MAC LAYER ... 220

11.1 GENERAL MAC MESSAGE FORMAT .................. 220

11.2 THE FRAME CONTROL FIELD IN THE MAC HEADER 221

11.3 THE SEQUENCE NUMBER FIELD ....................... 223

11.4 MAC LEVEL PROCESSING IN THE DW1000........ 224

12 APPENDIX 3: TWO-WAY RANGING ................. 225

12.1 INTRODUCTION ............................................ 225

12.2 SINGLE-SIDED TWO-WAY RANGING .................. 225

12.3 DOUBLE-SIDED TWO-WAY RANGING ................ 227

13 APPENDIX 4: ABBREVIATIONS AND ACRONYMS

233

14 APPENDIX 5: REFERENCES .............................. 237

15 DOCUMENT HISTORY ..................................... 237

16 CHANGE LOG .................................................. 237

17 FURTHER INFORMATION ................................ 244

DW1000 User Manual

Version 2.15

Page 2 of 244

List of Figures

FIGURE 1: SPI READ AND WRITE TRANSACTIONS ................... 10

FIGURE 2: SINGLE OCTET HEADER OF THE NON-INDEXED SPI

TRANSACTION ......................................................... 11

FIGURE 3: EXAMPLE NON-INDEXED READ OF THE DEVICE ID

FIGURE 4: TWO OCTET HEADER OF THE SHORT INDEXED SPI

TRANSACTION ......................................................... 11

FIGURE 5: EXAMPLE SHORT-INDEXED READ OF 3

AND 4

OCTETS

OF REGISTER 0X00 .................................................. 12

FIGURE 6: THREE OCTET HEADER OF THE LONG INDEXED SPI

TRANSACTION ......................................................... 12

FIGURE 7: EXAMPLE LONG-INDEXED WRITE OF ONE OCTET TO

INDEX 310 OF THE TX BUFFER ................................... 12

FIGURE 8: DW1000 STATE DIAGRAM ................................ 14

FIGURE 9: TIMING DIAGRAM AND POWER PROFILE FOR COLD

START POR ............................................................ 18

FIGURE 10: TRANSMIT FRAME FORMAT ............................... 24

FIGURE 11: BASIC TRANSMIT SEQUENCE ............................. 24

FIGURE 12 : PHR ENCODING EXTENDED LENGTH DATA FRAMES

........................................................................... 27

FIGURE 13: BASIC RECEIVE SEQUENCE .................................. 31

FIGURE 14: FLOW CHART FOR USING DOUBLE RX BUFFERING ... 37

FIGURE 15 : TRXOFF IN DOUBLE-BUFFERED MODE ............. 38

FIGURE 16 LOW POWER LISTENING WITH TWO SLEEP TIMES .... 39

FIGURE 17 POWER PROFILE FOR LOW POWER LISTENING MODE

WHERE NO FRAME IS RECEIVED ................................... 40

FIGURE 18: STATE TRANSITIONS DURING SNIFF MODE ........... 41

FIGURE 19 POWER PROFILE FOR SNIFF WHERE A FRAME IS NOT

RECEIVED ............................................................... 42

FIGURE 20 POWER PROFILE FOR SNIFF WHERE A FRAME IS

RECEIVED ............................................................... 42

FIGURE 21: POWER PROFILE FOR LOW DUTY-CYCLE SNIFF WHERE

A FRAME IS NOT RECEIVED ......................................... 43

FIGURE 22: ESTIMATED RX LEVEL VERSUS ACTUAL RX LEVEL .... 46

FIGURE 23: DW1000 EXTERNAL SYNCHRONISATION INTERFACE

............................................................................ 54

FIGURE 24: SYNCHRONISED TRANSMISSION .......................... 56

FIGURE 25: OSRS MODE RECEIVE TIMEBASE SYNCHRONISATION

............................................................................ 56

FIGURE 26: TRANSMIT POWER CONTROL OCTET .................. 107

FIGURE 27: COMBINING EDG1 AND EDV2 TO GIVE AN ED NOISE

FIGURE ................................................................ 125

FIGURE 28: FLOW CHART FOR DIRECT READ OF AON ADDRESS 168

FIGURE 29: PPM VS CRYSTAL TRIM SETTING, V

BATT

= 3.3 V . 203

FIGURE 30: TRANSMIT AND RECEIVE ANTENNA DELAY ......... 207

FIGURE 31: UWB PHY FRAME STRUCTURE ....................... 215

FIGURE 32:- BPM/BPSK DATA AND PHR MODULATION ...... 215

FIGURE 33: PHR BIT ASSIGNMENT .................................... 218

FIGURE 34: GENERAL MAC MESSAGE FORMAT ................... 220

FIGURE 35: MAC MESSAGE FRAME CONTROL FIELD .............. 221

FIGURE 36: SINGLE-SIDED TWO-WAY RANGING ................... 225

FIGURE 37: DOUBLE-SIDED TWO-WAY RANGING WITH FOUR

MESSAGES ............................................................ 227

FIGURE 38: DOUBLE-SIDED TWO-WAY RANGING WITH THREE

MESSAGES ............................................................ 227

FIGURE 39: RANGING TO 3 ANCHORS WITH JUST 5 MESSAGES

WHERE EACH ANCHOR CALCULATES ITS OWN RANGE RESULT

.......................................................................... 231

DW1000 User Manual

Version 2.15

Page 3 of 244

List of Tables

TABLE 1: MAIN DW1000 OPERATIONAL STATES / MODES ...... 15

TABLE 2: MODE 2 EXCERPT FROM DW1000 DATA SHEET

OPERATIONAL MODES TABLE .................................... 20

TABLE 3: GPIO DEFAULT FUNCTIONS .................................. 20

TABLE 4: REGISTER ACCESSES REQUIRED TO LOAD LDE MICROCODE

........................................................................... 23

TABLE 5: PREAMBLE DURATION FIELD VALUES IN EXTENDED

LENGTH DATA FRAME PHR ...................................... 27

TABLE 6: RECOMMENDED PAC SIZE .................................... 31

TABLE 7: REGISTERS IN THE RX DOUBLE-BUFFERED SWINGING-SET

........................................................................... 35

TABLE 8: AUTO-ACK PREAMBLE LENGTH DEPENDING ON RXPSR

AND RXPACC ........................................................ 50

TABLE 9: AUTO-ACK PREAMBLE LENGTH SELECTION IN EXTENDED

LENGTH FRAMES MODE ............................................ 50

TABLE 10: OTP MEMORY MAP ........................................... 58

TABLE 11: OTP_SRDAT REGISTER .................................... 59

TABLE 12: REGISTER ACCESSES REQUIRED TO PROGRAM THE OTP

........................................................................... 59

TABLE 13: AN EXAMPLE OF REGISTER ACCESSES REQUIRED TO

READ FROM OTP .................................................... 60

TABLE 14: AN EXAMPLE OF REGISTER ACCESSES TO PERFORM A

READ OF THE TEMPERATURE AND VOLTAGE SENSORS ...... 61

TABLE 15: REGISTER MAP OVERVIEW ................................... 62

TABLE 16: PREAMBLE LENGTH SELECTION ............................. 76

TABLE 17: PREAMBLE LENGTH REPORTING ............................ 94

TABLE 18: RXPACC ADJUSTMENTS BY SFD CODE................. 97

TABLE 19: REFERENCE VALUES FOR REGISTER FILE: 0X1E –

TRANSMIT POWER CONTROL, FOR SMART TRANSMIT

POWER CONTROL ................................................. 111

TABLE 20: REFERENCE VALUES REGISTER FILE: 0X1E – TRANSMIT

POWER CONTROL FOR MANUAL TRANSMIT POWER

CONTROL (SMART TRANSMIT POWER CONTROL DISABLED)

......................................................................... 111

TABLE 21: RECOMMENDED SFD SEQUENCE CONFIGURATIONS

FOR BEST PERFORMANCE ........................................ 119

TABLE 22: OTHER POSSIBLE SFD SEQUENCE CONFIGURATIONS

......................................................................... 120

TABLE 23: REGISTER FILE: 0X23 –AGC CONFIGURATION AND

CONTROL OVERVIEW .............................................. 121

TABLE 24: SUB-REGISTER 0X23:04 – AGC_TUNE1 VALUES 123

TABLE 25: SUB-REGISTER 0X23:0C – AGC_TUNE2 VALUES 123

TABLE 26: SUB-REGISTER 0X23:12 – AGC_TUNE3 VALUES 124

TABLE 27: SCALING FACTOR FOR CHANNEL NOISE ENERGY

ESTIMATION ......................................................... 125

TABLE 28: REGISTER FILE: 0X26 – GPIO CONTROL AND STATUS

OVERVIEW ........................................................... 129

TABLE 29: REGISTER FILE: 0X27 – DIGITAL RECEIVER

CONFIGURATION OVERVIEW ..................................... 142

TABLE 30: SUB-REGISTER 0X27:02 – DRX_TUNE0B VALUES143

TABLE 31: SUB-REGISTER 0X27:04 – DRX_TUNE1AVALUES 145

TABLE 32: SUB-REGISTER 0X27:06 – DRX_TUNE1B VALUES145

TABLE 33: SUB-REGISTER 0X27:08 – DRX_TUNE2VALUES . 146

TABLE 34: REGISTER 0X27:26 DRX_TUNE4H VALUES ........ 148

TABLE 35: CONSTANTS FOR FREQUENCY OFFSET CALCULATION 149

TABLE 36: REGISTER FILE: 0X28 – ANALOG RF CONFIGURATION

BLOCK OVERVIEW .................................................. 150

TABLE 37: SUB-REGISTER 0X28:0B– RF_RXCTRLH VALUES 152

TABLE 38: SUB-REGISTER 0X28:0C– RF_TXCTRL VALUES ... 152

TABLE 39: REGISTER FILE: 0X2A – TRANSMITTER CALIBRATION

BLOCK OVERVIEW .................................................. 155

TABLE 40: SUB-REGISTER 0X2A:0B – TC_PGDELAY

RECOMMENDED VALUES ......................................... 159

TABLE 41: .................................................................... 160

TABLE 42: REGISTER FILE: 0X2B – FREQUENCY SYNTHESISER

CONTROL BLOCK OVERVIEW ..................................... 160

TABLE 43: SUB-REGISTER 0X2B:07 – FS_PLLCFG VALUES ... 161

TABLE 44: SUB-REGISTER 0X2B:0B – FS_PLLTUNE VALUES 162

TABLE 45: REGISTER FILE: 0X2C – ALWAYS-ON SYSTEM CONTROL

OVERVIEW............................................................ 163

TABLE 46: CONFIGURATIONS MAINTAINED IN THE AON MEMORY

ARRAY................................................................. 167

TABLE 47: REGISTER FILE: 0X2D – OTP MEMORY INTERFACE

OVERVIEW............................................................ 172

TABLE 48: RECEIVER OPERATING PARAMETER SETS ............... 177

TABLE 49: REGISTER FILE: 0X2E – LEADING EDGE DETECTION

INTERFACE OVERVIEW ............................................ 178

TABLE 50: SUB-REGISTER 0X2E:1806– LDE_CFG2 VALUES. 181

TABLE 51: SUB-REGISTER 0X2E:2804 – LDE_REPC VALUES 181

TABLE 52: REGISTER FILE: 0X2F – DIGITAL DIAGNOSTICS

INTERFACE OVERVIEW ............................................ 182

TABLE 53: REGISTER FILE: 0X36 – POWER MANAGEMENT AND

SYSTEM CONTROL OVERVIEW .................................. 192

TABLE 54: REGISTER ACCESSES REQUIRED FOR TRANSMITTER

CONFIGURATION PROCEDURE ................................... 204

TABLE 55: RECOMMENDED RX POWER LEVEL FOR ANTENNA

CALIBRATION ........................................................ 207

TABLE 56: RECOMMENDED TX-RX SEPARATION FOR ANTENNA

CALIBRATION ........................................................ 207

TABLE 57: RECOMMENDED PREAMBLE LENGTHS .................. 210

TABLE 58: TRANSMISSIONS PER SECOND USING ALOHA ....... 211

TABLE 59: TECHNIQUES TO SAVE POWER IN RECEIVING .......... 213

TABLE 60: PREAMBLE PARAMETERS ................................... 217

剩余244页未读，继续阅读

林永康

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