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Decawave UWB Applications

Build Status

Overview

This distribution contains the example applications for the DW1000 UWB transceiver.

Getting hardware

Getting started

The remainder of this README.md shows how to bring up the elementary twr_node/twr_tag examples.

  1. Download and install Apache Newt.

You will need to download the Apache Newt tool, as documented in the Getting Started Guide.

Prerequisites: You should follow the generic tutorials at http://mynewt.apache.org/latest/tutorials/tutorials.html, particularly the basic Blinky example that will guide you through the basic setup.

  1. Download the UWB apps repository.
    git clone [email protected]:Decawave/uwb-apps.git
    cd uwb-apps
  1. Running the newt upgrade command downloads the apache-mynewt-core, decawave-uwb-core, decawave-uwb-dwXXXX driver(s) repo, and mynewt-timescale-lib packages, these are dependent repos of the decawave-uwb-apps project and are automatically checked-out by the newt tools.
$ newt upgrade
# Depending on what version of the newt tool you use you
# may have to manually remove git-but artifacts and then rerun
# upgrade. I.e. only if you see an error like:
# "Error: Error updating "mcuboot"..." do:
rm repos/mcuboot/ext/mbedtls/include/mbedtls/ -rf
newt upgrade

To see if you have access to other driver repos, run the setup.sh script under repos/decawave-uwb-core like so:

repos/decawave-uwb-core/setup.sh
# Rerun newt install
newt install

Apply any patches to apache-mynewt-core:

cd repos/apache-mynewt-core/
git apply ../decawave-uwb-core/patches/apache-mynewt-core/mynewt_1_7_0_*
cd -
  1. To erase the default flash image that shipped with the DWM1001.
$ JLinkExe -device nRF52 -speed 4000 -if SWD
J-Link>erase
J-Link>exit
$

or if you have nrfjprog (Nordic Cmd Tools) installed:

    $ nrfjprog -f NRF52 -e
  1. Build the new bootloader applicaiton for the DWM1001 target.

(executed from the mynewt-dw1000-app directory).


newt target create dwm1001_boot
newt target set dwm1001_boot app=@mcuboot/boot/mynewt
newt target set dwm1001_boot bsp=@decawave-uwb-core/hw/bsp/dwm1001
newt target set dwm1001_boot build_profile=optimized
newt build dwm1001_boot
newt load dwm1001_boot
  1. On the first DWM1001-DEV board build the Two-Way-Ranging (twr_tag_tdma) application for the DWM1001 module. The run command compiles the project and loads the image on the target platform.

(executed from the decawave-uwb-apps directory).


newt target create twr_tag_tdma
newt target set twr_tag_tdma app=apps/twr_tag_tdma
newt target set twr_tag_tdma bsp=@decawave-uwb-core/hw/bsp/dwm1001
newt target set twr_tag_tdma build_profile=debug
newt run twr_tag_tdma 0
  1. On a second DWM1001-DEV board build the node side of the Two-Way-Ranging (twr_node_tdma) application as follows.

(executed from the decawave-uwb-apps directory).


newt target create twr_node_tdma
newt target set twr_node_tdma app=apps/twr_node_tdma
newt target set twr_node_tdma bsp=@decawave-uwb-core/hw/bsp/dwm1001
newt target set twr_node_tdma build_profile=debug
newt target amend twr_node_tdma syscfg=LOG_LEVEL=1:UWBCFG_DEF_ROLE='"0x1"'
newt run twr_node_tdma 0
  1. Both examples are configured to use the Segger RTT console interface. This is covered within the mynewt tutorials/Tooling/SeggerRTT (http://mynewt.apache.org/latest/tutorials/tooling/segger_rtt.html). To launch the console simply telnet localhost 19021. Note at time of writing the newt tools does not support multiple connect dwm1001-dev devices. So it is recomended that you connect twr_tag_tdma and twr_node_tdma examples to different computers or at least the twr_tag_tdma to an external battery. If all goes well you should see the twr_node_tdma example stream range information on the console.

(executed from the decawave-uwb-apps directory).


nc localhost 19021