Transcription of DW1000 User Manual - Decawave
1 Decawave Ltd 2017 DW1000 user Manual Version DW1000 user Manual HOW TO USE, CONFIGURE AND PROGRAM THE DW1000 UWB TRANSCEIVER This document is subject to change without notice DW1000 user Manual Decawave Ltd 2017 Subject to change without notice Version Page i Table of Contents LIST OF FIGURES .. II LIST OF TABLES .. III 1 INTRODUCTION .. 1 ABOUT THE DW1000 .. 1 ABOUT THIS DOCUMENT .. 1 2 OVERVIEW OF THE DW1000 .. 4 INTRODUCTION .. 4 INTERFACING TO THE DW1000 .. 4 DW1000 OPERATIONAL STATES .. 8 POWER ON RESET (POR) .. 12 DEFAULT CONFIGURATION ON POWER UP .. 14 3 MESSAGE TRANSMISSION .. 19 BASIC TRANSMISSION.
2 19 TRANSMISSION TIMESTAMP .. 20 DELAYED TRANSMISSION .. 20 EXTENDED LENGTH DATA FRAMES .. 21 HIGH SPEED TRANSMISSION .. 23 4 MESSAGE RECEPTION .. 26 BASIC RECEPTION .. 26 DELAYED RECEIVE .. 29 DOUBLE RECEIVE 29 LOW-POWER LISTENING .. 33 LOW-POWER SNIFF MODE .. 35 DIAGNOSTICS .. 38 ASSESSING THE QUALITY OF RECEPTION AND THE RX TIMESTAMP .. 38 5 MEDIA ACCESS CONTROL (MAC) HARDWARE FEATURES .. 42 CYCLIC REDUNDANCY CHECK .. 42 FRAME FILTERING .. 42 AUTOMATIC ACKNOWLEDGEMENT .. 44 TRANSMIT AND AUTOMATICALLY WAIT FOR RESPONSE 48 6 OTHER FEATURES OF THE DW1000 .. 49 EXTERNAL SYNCHRONISATION .. 49 EXTERNAL POWER AMPLIFICATION.
3 52 USING THE ON-CHIP OTP MEMORY .. 52 MEASURING IC TEMPERATURE AND VOLTAGE .. 55 7 THE DW1000 REGISTER SET .. 57 REGISTER MAP OVERVIEW .. 57 DETAILED REGISTER DESCRIPTION .. 59 8 DW1000 CALIBRATION .. 197 IC CALIBRATION CRYSTAL OSCILLATOR TRIM .. 197 IC CALIBRATION TRANSMIT POWER AND SPECTRUM 199 IC CALIBRATION ANTENNA DELAY .. 202 9 OPERATIONAL DESIGN CHOICES WHEN EMPLOYING THE 205 OPERATING RANGE .. 205 CHANNEL AND BANDWIDTH SELECTION .. 205 CHOICE OF DATA RATE, PREAMBLE LENGTH AND PRF 205 POWER CONSUMPTION .. 206 NODE DENSITY AND AIR UTILISATION .. 206 LOW DUTY CYCLE AIR TIME .. 207 LOCATION SCHEMES.
4 208 GENERAL 209 10 APPENDIX 1: THE IEEE UWB PHYSICAL LAYER .. 211 FRAME STRUCTURE OVERVIEW .. 211 DATA MODULATION SCHEME .. 211 SYNCHRONISATION HEADER MODULATION SCHEME 212 PHY HEADER .. 213 UWB CHANNELS AND PREAMBLE CODES .. 214 ADDITIONAL DETAILS ON THE STANDARD .. 215 11 APPENDIX 2: THE IEEE MAC LAYER .. 216 GENERAL MAC MESSAGE FORMAT .. 216 THE FRAME CONTROL FIELD IN THE MAC HEADER 217 THE SEQUENCE NUMBER FIELD .. 219 MAC LEVEL PROCESSING IN THE 220 12 APPENDIX 3: TWO-WAY RANGING .. 221 INTRODUCTION .. 221 SINGLE-SIDED TWO-WAY RANGING .. 221 DOUBLE-SIDED TWO-WAY RANGING .. 223 13 APPENDIX 4: DECODING PART/CHIP AND LOT ID IN DW1000 OTP.
5 229 14 APPENDIX 5: ABBREVIATIONS AND ACRONYMS 231 15 APPENDIX 6: REFERENCES .. 235 16 DOCUMENT HISTORY .. 235 17 CHANGE LOG .. 235 18 FURTHER INFORMATION .. 243 DW1000 user Manual Decawave Ltd 2017 Subject to change without notice Version Page ii List of Figures FIGURE 1: SPI READ AND WRITE TRANSACTIONS .. 5 FIGURE 2: SINGLE OCTET HEADER OF THE NON-INDEXED SPI TRANSACTION .. 6 FIGURE 3: EXAMPLE NON-INDEXED READ OF THE DEVICE ID REGISTER (0X00) .. 6 FIGURE 4: TWO OCTET HEADER OF THE SHORT INDEXED SPI TRANSACTION .. 6 FIGURE 5: EXAMPLE SHORT-INDEXED READ OF 3RD AND 4TH OCTETS OF REGISTER 0X00 .. 7 FIGURE 6: THREE OCTET HEADER OF THE LONG INDEXED SPI TRANSACTION.
6 7 FIGURE 7: EXAMPLE LONG-INDEXED WRITE OF ONE OCTET TO INDEX 310 OF THE TX BUFFER .. 7 FIGURE 8: DW1000 STATE DIAGRAM .. 9 FIGURE 9: TIMING DIAGRAM AND POWER PROFILE FOR COLD START POR .. 13 FIGURE 10: TRANSMIT FRAME FORMAT .. 19 FIGURE 11: BASIC TRANSMIT SEQUENCE .. 19 FIGURE 12 : PHR ENCODING EXTENDED LENGTH DATA FRAMES .. 22 FIGURE 13: BASIC RECEIVE SEQUENCE .. 26 FIGURE 14: FLOW CHART FOR USING DOUBLE RX BUFFERING .. 32 FIGURE 15 : TRXOFF IN DOUBLE-BUFFERED MODE .. 33 FIGURE 16 LOW POWER LISTENING WITH TWO SLEEP TIMES .. 34 FIGURE 17 POWER PROFILE FOR LOW POWER LISTENING MODE WHERE NO FRAME IS RECEIVED .. 35 FIGURE 18: STATE TRANSITIONS DURING SNIFF MODE.
7 36 FIGURE 19 POWER PROFILE FOR SNIFF WHERE A FRAME IS NOT RECEIVED .. 37 FIGURE 20 POWER PROFILE FOR SNIFF WHERE A FRAME IS RECEIVED .. 37 FIGURE 21: POWER PROFILE FOR LOW DUTY-CYCLE SNIFF WHERE A FRAME IS NOT RECEIVED .. 38 FIGURE 22: ESTIMATED RX LEVEL VERSUS ACTUAL RX LEVEL .. 41 FIGURE 23: DW1000 EXTERNAL SYNCHRONISATION INTERFACE .. 49 FIGURE 24: SYNCHRONISED TRANSMISSION .. 50 FIGURE 25: OSRS MODE RECEIVE TIMEBASE SYNCHRONISATION .. 51 FIGURE 26: TRANSMIT POWER CONTROL OCTET .. 103 FIGURE 27: COMBINING EDG1 AND EDV2 TO GIVE AN ED NOISE FIGURE .. 121 FIGURE 28: FLOW CHART FOR DIRECT READ OF AON ADDRESS 164 FIGURE 29: PPM VS CRYSTAL TRIM SETTING, VBATT= V.
8 199 FIGURE 30: TRANSMIT AND RECEIVE ANTENNA DELAY .. 203 FIGURE 31: UWB PHY FRAME STRUCTURE .. 211 FIGURE 32:- BPM/BPSK DATA AND PHR MODULATION .. 211 FIGURE 33: PHR BIT ASSIGNMENT .. 214 FIGURE 34: GENERAL MAC MESSAGE FORMAT .. 216 FIGURE 35: MAC MESSAGE FRAME CONTROL FIELD .. 217 FIGURE 36: SINGLE-SIDED TWO-WAY RANGING .. 221 FIGURE 37: DOUBLE-SIDED TWO-WAY RANGING WITH FOUR MESSAGES .. 223 FIGURE 38: DOUBLE-SIDED TWO-WAY RANGING WITH THREE MESSAGES .. 223 FIGURE 39: RANGING TO 3 ANCHORS WITH JUST 5 MESSAGES WHERE EACH ANCHOR CALCULATES ITS OWN RANGE RESULT .. 227 FIGURE 40 CONVERSION 229 FIGURE 41 CONVERSION EXAMPLE LOT ID.
9 230 FIGURE 42 CONVERSION PART ID / CHIP ID .. 230 DW1000 user Manual Decawave Ltd 2017 Subject to change without notice Version Page iii List of Tables TABLE 1: MAIN DW1000 OPERATIONAL STATES / MODES .. 10 TABLE 2: MODE 2 EXCERPT FROM DW1000 DATA SHEET OPERATIONAL MODES TABLE .. 15 TABLE 3: GPIO DEFAULT FUNCTIONS .. 15 TABLE 4: REGISTER ACCESSES REQUIRED TO LOAD LDE MICROCODE .. 18 TABLE 5: PREAMBLE DURATION FIELD VALUES IN EXTENDED LENGTH DATA FRAME PHR .. 22 TABLE 6: RECOMMENDED PAC SIZE .. 26 TABLE 7: REGISTERS IN THE RX DOUBLE-BUFFERED SWINGING-SET .. 30 TABLE 8: AUTO-ACK PREAMBLE LENGTH DEPENDING ON RXPSR AND RXPACC.
10 45 TABLE 9: AUTO-ACK PREAMBLE LENGTH SELECTION IN EXTENDED LENGTH FRAMES MODE .. 45 TABLE 10: OTP MEMORY MAP .. 53 TABLE 11: OTP_SRDAT REGISTER .. 54 TABLE 12: REGISTER ACCESSES REQUIRED TO PROGRAM THE OTP .. 54 TABLE 13: AN EXAMPLE OF REGISTER ACCESSES REQUIRED TO READ FROM OTP .. 55 TABLE 14: AN EXAMPLE OF REGISTER ACCESSES TO PERFORM A READ OF THE TEMPERATURE AND VOLTAGE SENSORS .. 56 TABLE 15: REGISTER MAP OVERVIEW .. 57 TABLE 16: PREAMBLE LENGTH SELECTION .. 71 TABLE 17: PREAMBLE LENGTH REPORTING .. 89 TABLE 18: RXPACC ADJUSTMENTS BY SFD 92 TABLE 19: REFERENCE VALUES FOR REGISTER FILE: 0X1E TRANSMIT POWER CONTROL, FOR SMART TRANSMIT POWER CONTROL.
