Ublox C101-D9S Manuale utente

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C101-D9S

Application board (rev. C)

User guide



Abstract

This document explains the use of C101-D9S application board. The C101-D9S board

enables

customers to evaluate L-band GNSS correction services with the NEO-D9S correction data receiver

C101-D9S - User guide

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Document information

Title C101-D9S

Subtitle Application board (rev. C)

Document type User guide

Document number UBX-20031865

Revision and date R01 30-Jul-2020

Disclosure restriction C1-Public

This document applies to the following products:

Product name Type number Firmware version PCN reference

C101-D9S C101-D9S-0-00 FW V1.04 PMP 1.04 N/A

u-blox or third parties may hold intellectual property rights in the products, names, logos and designs included in this

document. Copying, reproduction, modification or disclosure to third parties of this document or any part thereof is only

permitted with the express written permission

of u-blox.

The information contained herein is provided “as is” and u

-blox assumes no liability for its use. No warranty, either express or

implied, is given, including but not limited

to, with respect to the accuracy, correctness, reliability and fitness for a particular

purpose of the information. This document may be revised by u

-blox at any time without notice. For the most recent

documents, visit www.u

-blox.com.

-blox AG.

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Contents

Document information................................................................................................................................2

Contents ..........................................................................................................................................................3

1Introduction.............................................................................................................................................4

1.1 Package contents ....................................................................................................................................... 4

2C101-D9S product overview..............................................................................................................5

2.1 Components................................................................................................................................................. 5

2.2 Jumpers........................................................................................................................................................ 6

3C101-D9S standalone operation......................................................................................................7

Appendix ..........................................................................................................................................................9

AGlossary ....................................................................................................................................................9

BNEO-D9S L-band configurations......................................................................................................9

CL-band antenna specification............................................................................................................9

DNEO-D9S UART2 to Arduino pins.................................................................................................. 10

EC101-D9S schematics ...................................................................................................................... 11

Related documentation ........................................................................................................................... 14

Revision history.......................................................................................................................................... 14

Contact.......................................................................................................................................................... 15

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1Introduction

The C101-D9S board is a convenient tool that allows customers to become familiar with the u-blox

NEO-D9S L-band correction data receiver. The board provides facilities for evaluating the product and

demonstrating its key features.

NEO-D9S is a satellite data receiver for L-band correction broadcasts and can be configured for use

with a variety of correction services. Using such correction services enables high precision navigation

globally in multiple regions, as well as coverage across continents.

The C101-D9S application board offers:

•NEO-D9S module for use as L-band correction data receiver

•USB connection for communication and power supply

•L-band antenna connection for receiving the satellite data stream

•Arduino shield connection

1.1 Package contents

The delivered package contains:

•C101-D9S board

•L-band antenna

•Antenna ground plane (12 cm circular)

•USB interconnect cable

•Jumper connectors

Prior to using the board, it is useful to download the appropriate evaluation software and keep handy

the documents listed in the Related documents section.

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2C101-D9S product overview

2.1 Components

C101-D9S houses the NEO-D9S L-band correction data receiver. The board is powered from the USB

cable connection or via Arduino shield. The main components of the board are listed below and shown

in Figure 1 and Figure 2:

•Native USB port

•FTDI USB bridge

•SMA RF connector and antenna supply capability (L-band)

•UART2 interface through Arduino shield

•NEO-D9S RESET button

•NEO-D9S SAFEBOOT button

Figure 1: C101-D9S block diagram

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Figure 2: C101-D9S quick start basic overview

2.2 Jumpers

The board is delivered with the following default jumpers:

•J6: This jumper provides 3.3 V power supply to an external active antenna plugged to the SMA RF

connector. The current limit circuit is also enabled up to 60 mA.

•J8: This jumper switches the communication from the UART2 of the NEO-D9S to the J2 or J3

connector of the Arduino shield (refer to Appendix D for further details).

Figure 3: C101-D9S jumpers overview

For further details, see the C101-D9S schematic in Appendix E.

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3C101-D9S standalone operation

This section provides some quicksteps to enable NEO-D9S standalone operation, and connecting via

u-center (see u-center user guide [3]).

•Connect the supplied L-band antenna to the RF SMA connector. Ensure good visibility of the GEO

communication satellites.

•Connect the USB to a Windows PC, this will power the board. The FTDI and USB drivers will be

installed automatically from Windows Update when the user connects the board for the first time.

•The power LED will turn on in blue color.

•Start the Device Manager utility from Windows. Two new ports will be visible under the Ports tab:

the USB Serial Device is the Native USB port and the USB Serial Port is the FTDI USB bridge port,

as shown in Figure 4.

Figure 4: Windows Device Manager Ports identifications

Figure 5: FTDI USB bridge and USB ports properties

•Start u-center and connect to one of the COM ports. If you are using the FTDI USB bridge, make

sure the baud rate in u-center is set to 9600.

•Poll UBX-MON-VER message and check the content as shown in Figure 6.

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Figure 6: UBX-MON-VER message

NEO-D9S needs to be properly configured to receive the L-band signal correction data. See Appendix

B for the default NEO-D9S L-band configuration, which can be adapted for other services.

The messages UBX-MON-PMP and UBX-RXM-PMP (see Figure 7 and Figure 8) can be polled or

enabled to check respectively the reception of the signal and the decoded correction data.

Figure 7: UBX-MON-PMP message

Figure 8: UBX-RXM-PMP message

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Appendix

AGlossary

Abbreviation Definition

FTDI Future Technology Device International

GEO Geostationary Earth Orbit

LED Light Emitting Diode

LNA Low Noise Amplifier

RF Radio Frequency

RHCP Right Hand Circular Polarized

SMA SubMiniature version A

UART Universal Asynchronous Receiver Transmitter

USB Universal Serial Bus

Table 1: Explanation of the abbreviations and terms used

BNEO-D9S L-band configurations

Correction services from several providers are available via the L-band communication satellites. The

service provider will have several correction service specific configurations that need to be conﬁgured

before the receiver can provide the relevant service provider data such as:

•Service provider service ID

•Service provider frequency based on geographical location

•Service provider data rate

This means that the frequency allocation for a particular service provider could change. Service

providers do provide information on any frequency changes when required.

The NEO-D9S default L-band conﬁguration keys are listed below:

•CFG-PMP-CENTER_FREQUENCY = 1539812500 Hz

•CFG-PMP-SEARCH_WINDOW = 2200 Hz

•CFG-PMP-USE_SERVICE_ID = 1 (true)

•CFG-PMP-SERVICE_ID = 50821

•CFG-PMP-DATA_RATE = 2400 (B2400) bps

•CFG-PMP-USE_DESCRAMBLER = 1 (true)

•CFG-PMP-DESCRAMBLER_INIT = 23560

•CFG-PMP-USE_PRESCRAMBLING = 0 (false)

•CFG-PMP-UNIQUE_WORD = 16238547128276412563

The NEO-D9S correction data receiver is fully compliant with the u-blox configuration concept. The

messages UBX-CFG-VALSET, UBX-CFG-VALGET and UBX-CFG-VALDEL are used to configure the

above keys. See the NEO-D9S Integration manual [1] for further details.

CL-band antenna specification

The following is an overview of the provided Inpaq L-band antenna, LBAND01D-S6-00:

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See the NEO-D9S Integration manual [1] for further details.

DNEO-D9S UART2 to Arduino pins

Depending on the position of the jumper J8 on the C101-D9S board, communication with the UART2

port of the NEO-D9S is enabled on the Arduino connector pins as shown below:

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