APS022: Debugging DW1000 based products and systems
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Decawave Limited. No reproduction is permitted without prior express written permission of the
author
TABLE OF CONTENTS
1 INTRODUCTION ........................................................................................................................................ 4
1.1 SCOPE ....................................................................................................................................................... 4
1.2 PRE-REQUISITES .......................................................................................................................................... 4
1.3 REFERENCES AND SOURCES ............................................................................................................................ 4
1.4 DOCUMENT OVERVIEW ................................................................................................................................. 4
2 POWER-UP SEQUENCE ............................................................................................................................. 5
3 DW1000 INTERFACES (SPI AND GPIOS)..................................................................................................... 7
3.1 DW1000 SPI INTERFACE .............................................................................................................................. 7
3.2 LOW AND HIGH SPI RATE .............................................................................................................................. 7
3.3 READ DEVICE ID .......................................................................................................................................... 7
3.4 SPI CONFIGURATION MODES .......................................................................................................................... 7
3.5 DW1000 GPIO5 AND GPIO6 ...................................................................................................................... 8
3.6 TX AND RX STATES ON AN OSCILLOSCOPE ......................................................................................................... 8
4 USING STATUS (SYS_STATUS) AND STATES (SYS_STATE) REGISTERS ...................................................... 10
4.1 INTRODUCTION ......................................................................................................................................... 10
4.2 THE SYSTEM STATUS (SYS_STATUS) REGISTER .............................................................................................. 10
4.3 THE SYSTEM STATES (SYS_STATE) REGISTER ................................................................................................. 11
4.4 OVERALL SYSTEM STATES ............................................................................................................................. 11
4.5 RECEIVER STATES ....................................................................................................................................... 11
4.6 TRANSMITTER STATES ................................................................................................................................. 12
5 DW1000 TRANSMISSION ........................................................................................................................ 13
5.1 INTRODUCTION ......................................................................................................................................... 13
5.2 BASIC OPERATION ...................................................................................................................................... 13
5.3 SUPPORTED TRANSMISSION TYPES ................................................................................................................. 13
5.3.1 Immediate TX ................................................................................................................................ 13
5.3.2 Delayed TX .................................................................................................................................... 13
5.4 TX EVENTS ............................................................................................................................................... 14
5.5 TRX OFF .................................................................................................................................................. 15
5.6 TWR CURRENT PROFILE .............................................................................................................................. 15
6 DW1000 RECEPTION............................................................................................................................... 17
6.1 INTRODUCTION ......................................................................................................................................... 17
6.2 BASIC OPERATION ...................................................................................................................................... 17
6.3 SUPPORTED RECEPTION TYPES ...................................................................................................................... 17
6.3.1 Immediate RX ................................................................................................................................ 17
6.3.2 Delayed RX .................................................................................................................................... 17
6.3.3 Auto RX after TX ............................................................................................................................ 17
6.4 RX EVENTS ............................................................................................................................................... 18
6.5 TRX OFF .................................................................................................................................................. 18
6.6 TWR POWER PROFILE ................................................................................................................................. 18
7 DW1000 SLEEP & DEEPSLEEP STATES ..................................................................................................... 19
7.1 INTRODUCTION ......................................................................................................................................... 19
7.2 SLEEP ..................................................................................................................................................... 19
7.3 DEEPSLEEP ............................................................................................................................................ 19
7.4 WAKEUP ................................................................................................................................................ 19
7.5 CONFIGURING WAKEUP AND DEEPSLEEP ................................................................................................... 19
8 REFERENCES ........................................................................................................................................... 22
9 DOCUMENT HISTORY ............................................................................................................................. 22
10 MAJOR CHANGES ............................................................................................................................... 22
