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SX1261DVK1BAS

器件型号:SX1261DVK1BAS
器件类别:嵌入式解决方案    工程工具    射频_无线开发工具    射频开发工具   
厂商名称:SEMTECH
厂商官网:http://www.semtech.com
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器件描述

射频开发工具 SX1261 868MHZ DVK 2-Layers EU

参数

产品属性属性值
制造商:Semtech
产品种类:射频开发工具
RoHS:详细信息
产品:Development Kits
类型:RF Transceivers
工具用于评估:SX1261
频率:868 MHz
封装:Bulk
系列:SX1261
商标:Semtech
产品类型:RF Development Tools
工厂包装数量:1
子类别:Development Tools
商标名:LoRa

SX1261DVK1BAS器件文档内容

                                                SX1261/SX1262

                                                Long Range, Low Power

                                                Sub-GHz Transceiver

WIRELESS & SENSING   PRODUCTS

                               User Guide for the

                               SX1261 and SX1262

                               Development Kits

                               www.semtech.com

UG.DEV.SX126x.W.APP

Rev 1.1

March 2018
    Table of Contents

1.       Contents of Delivery ....................................................................................................................................................4

2.       First Use ............................................................................................................................................................................5

    2.1  Connect the SX1261/SX1262 Development Kit .......................................................................................... 5

    2.2  Welcome Display....................................................................................................................................................5

    2.3  How to Navigate with the Touch Screen.......................................................................................................5

    2.4  Check and Upload the Firmware File..............................................................................................................6

3.       Ping Pong Demo ...........................................................................................................................................................7

4.       PER Demo ........................................................................................................................................................................8

5.       Radio Test Modes..........................................................................................................................................................9

6.       Radio Settings ..............................................................................................................................................................10

    6.1  LORA Modulation.................................................................................................................................................10

    6.2  GFSK Modulation .................................................................................................................................................10

    6.3  Frequency Setting................................................................................................................................................11

7.       Utilities ............................................................................................................................................................................11

8.       Revision History ...........................................................................................................................................................11

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                                                                                                                     Page 2 of 12

UG.DEV.SX126x.W.APP          March 2018                                                                                                                                                            Semtech
List of Figures

Figure 1: From left to right: touch screen, RF module and MBED board...............................................................4

Figure 2: Touch screen, RF module and MBED board correctly assembled ......................................................... 4

Figure 3: Welcome Display.....................................................................................................................................................5

Figure 4. PING PONG Demo Slave Display ....................................................................................................................... 7

Figure 5: PING PONG Demo Master Display .................................................................................................................... 7

Figure 6: PER Demo Slave Display .......................................................................................................................................8

Figure 7: PER Demo Master Display....................................................................................................................................8

Figure 8: Radio Test Modes Display ....................................................................................................................................9

Figure 9: LORA Radio Settings Display.............................................................................................................................10

Figure 10: GFSK Radio Settings Display...........................................................................................................................10

Figure 11: Frequency Setting Display ..............................................................................................................................11

Figure 12: Utilities Display....................................................................................................................................................11

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                                                                                                      Page 3 of 12

UG.DEV.SX126x.W.APP          March 2018                                                                                                                                             Semtech
1.  Contents of Delivery

    The Development Kit for a SX1261 or SX1262 transceiver is delivered with the following contents:

    -  2 SX126xMB1xAS RF modules including a microcontroller ST Nucleo MBED board and a touch screen

    -  2 connection cables Mini-USB / USB

    -  2 868/915 MHz antennas

    -  2 Mini-USB cables

    -  2 touch screen styluses

    -  1 Read-Me Note

    Before powering the kit, make sure to assemble the three parts shown in the image below:

                             Figure 1: From left to right: touch screen, RF module and MBED board

    When you assemble the parts, make sure that they are correctly oriented, as shown below:

                             Figure 2: Touch screen, RF module and MBED board correctly assembled

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                        Page 4 of 12

UG.DEV.SX126x.W.APP          March 2018                                                               Semtech
2. First Use

2.1 Connect the SX1261/SX1262 Development Kit

     1.  Plug the mini-USB / USB cable into the mini-USB socket of the SX1261/SX1262 Development Kit

     2.  Plug the mini-USB / USB cable into the USB socket of your PC

     The SX1261/SX1262 Development Kit will power on and connect to your PC.

     The type of device (SX1261 or SX1262) is automatically detected by the kit.

2.2  Welcome Display

     The welcome screen with the top menu is visible upon power-on.

     You can access the following test modes:

     -   DEMO Ping Pong

         This performs a bidirectional range test between a pair of radio units.

     -   DEMO PER

         This performs a unidirectional packet error rate test between user-defined

         Master and Slave units.

     Additionally, you can access the Radio Test Modes, which provide access to the

     basic operating modes of the radio. The Radio Settings allow you to modify the

     communication and modem settings used in the demos.                             Figure 3: Welcome Display

     The Utilities menu provides information about the peripherals and version of the installed firmware.

2.3 How to Navigate with the Touch Screen

     On the touch screen of the kit the following conventions are adopted:

     -   Menus, functions and configuration of settings are indicated in Green

     -   Data that cannot be modified is indicated in White

     -   Result data from tests are indicated in Yellow

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                             Page 5 of 12

UG.DEV.SX126x.W.APP          March 2018                                                                    Semtech
2.4  Check and Upload the Firmware File

        Before using the SX1261/SX1262 Development Kit, make sure to have the latest firmware:

     -  Go to the Utilities section 7

     -  Check the Firmware Version

     -  If it is not the latest version, download the firmware from www.semtech.com and save it to your PC

     The firmware can then be uploaded to the SX1261/SX1262 Development Kit.

     To upload the firmware file:

     -  Connect the SX1261/SX1262 Development Kit as explained in Section 2

     -  Allow your computer to display the kit as an extra device

     -  Drag and drop the .bin file that has been provided to you or that has been downloaded from the Semtech

        website

     -  The kit will initialize and eventually ask you to calibrate the screen, simply follow the on-screen instructions

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                              Page 6 of 12

UG.DEV.SX126x.W.APP          March 2018                                                                         Semtech
3.  Ping Pong Demo

    A Ping Pong Test is a bidirectional test between a pair of SX1261/SX1262 kits. One kit needs to be configured as

    the Ping Pong Master and the other kit as the Ping Pong Slave. Communication is initiated by the Master whose

    packet is received by the Slave from which the PER may be calculated.

    In response to this packet the Slave sends an acknowledgement, which also contains statistical information

    about the link calculated by the Slave. The Master, upon receiving this response, will then display both the PER

    for the Master to Slave and the Slave to Master packet exchanges.

    Press on Demo Ping Pong from the Welcome Display to access this test.

    You can change the radio settings from this menu:

      Press SETTINGS to adjust the same radio settings on the Master and the

       Slave units. See Section 6 for more details on the radio settings.

    Before starting the test:

    -  Place the Slave unit into the desired position

    -  Place the Master unit into the desired position

      Press SLAVE to toggle a unit to MASTER and vice-versa

                                                                                          Figure 4. PING PONG Demo Slave Display

       To start the Ping Pong test:

      Press START first on the Slave unit then on the Master Unit

    -  Both units will exchange data until you press STOP on either unit.

       The reception and transmission of data are indicated by LEDs on each unit.

    -  The result of the test is displayed on the screen of the Master unit:

       o             Rx OK : number of packets completely received

       o             Rx KO: number of packets not completely received

       o             Rx PSR: Percentage Packet Success Rate for the last packet exchange

       o             Rx PER: Percentage Packet Error Rate for the last packet exchange

       o             Last RSSI: Received Signal Strength Indication [dBm]

       o             Last SNR: Signal to Noise Ratio for the last packet exchange [dB]    Figure 5: PING PONG Demo Master Display

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                                  Page 7 of 12

UG.DEV.SX126x.W.APP          March 2018                                                                               Semtech
4.  PER Demo

    A Packet Error Rate (PER) test is a unidirectional test where one kit is configured as a Master and the other as a

    Slave. In this case the Master will assume the role of transmitter and the Slave that of receiver. The aggregate

    PER of the packets received by the Slave, expressed as a percentage, is calculated and displayed on the receiver

    (Slave). Given that this is a unidirectional test, the packet error rate is not displayed on the transmitter (Master).

    Press on Demo PER from the Welcome Display to access this test.

    You can change the radio settings from this menu:

      Press SETTINGS to adjust the same radio settings on the Master and the

       Slave units. See Section 6 for more details on the radio settings.

    Before starting the test:

    -  Place the Slave unit into the desired position

    -  Place the Master unit into the desired position

      Press SLAVE to toggle the unit to MASTER and vice-versa                            Figure 6: PER Demo Slave Display

       To start the PER test:

      Press START first on the Slave unit then on the Master Unit

    -  Both units will exchange data until you press STOP on either unit.

       The reception and transmission of data are indicated by LEDs on each unit.

    -  The result of the Demo is displayed on the screen of the Slave unit:

       o             Rx OK : number of packets completely received

       o             Rx KO: number of packets not completely received

       o             Rx PSR: Percentage Packet Success Rate for the last packet exchange

       o             Rx PER: Percentage Packet Error Rate for the last packet exchange

       o             Last RSSI: Received Signal Strength Indication [dBm]

       o             Last SNR: Signal to Noise Ratio for the last packet exchange [dB]    Figure 7: PER Demo Master Display

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                            Page 8 of 12

UG.DEV.SX126x.W.APP          March 2018                                                                                     Semtech
5.  Radio Test Modes

    The Radio Test Modes menu allows you to select certain preset test modes.

    These test modes permit the test of consumption of the radio in the respective

    modes, additionally that can be of use to test the specification claims of the

    datasheet or various modem performances without the need to create custom

    firmware.

                                                                                    Figure 8: Radio Test Modes Display

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                      Page 9 of 12

UG.DEV.SX126x.W.APP          March 2018                                             Semtech
6.  Radio Settings

    The radio settings available depend upon the modulation, denoted Mod in the sub-menu Radio Settings. For

    each modem you can modify the modulation and power parameters. Registered settings are proper to each

    modulation.

6.1 LORA Modulation

    The radio settings available for LORA modulation are:

    -  Frequency (Freq) as described in Section 6.3

    -  Payload (PL): size of the payload between 1 and 64 bytes

    -  Transmission Power (Tx Pow): in steps of 1 dBm

           o         from -17 dBm to +15 dBm for the SX1261

           o         from -10 dBm to +22 dBm for the SX1262

    -  Param 1: Spreading Factor between SF5 and SF12

    -  Param 2: BandWidth (BW) from 7 kHz to 500 kHz

    -  Param 3: Coding Rate (CR) of the Forward Error Correction applied to the

       packet of either CR 4/5, 4/6, 4/7 or 4/8

    -  Param 4: Packet type of either Variable length or Fixed length

                                                                                   Figure 9: LORA Radio Settings Display

6.2 GFSK Modulation

    The radio settings available for GFSK modulation are:

    -  Frequency (Freq) as described in Section 6.3

    -  Payload (PL): size of the payload between 1 and 64 bytes

    -  Transmission Power (Tx Pow): in steps of 1 dBm

           o         from -17 dBm to +15 dBm for the SX1261

           o         from -10 dBm to +22 dBm for the SX1262

    -  Param 1: Bitrate from 0.1 kbps to250 kbps

    -  Param 2: Frequency deviation (Fd) between 5 and 150 kHz.

       This must be set realistically in accordance with the bitrate

    -  Param 3: Tx Modulation Filtering (Gaussian, RC, RRC) with BT from 0.3 to 1

    -  Payload: BandWidth (BW) from 4.8 kHz to 467 kHz                             Figure 10: GFSK Radio Settings Display

    Note:

    Certain settings will appear in red if they are not compatible and cannot be handled by the radio. Refer to the

    SX1261/2 Data Sheet to see the relationship details between bitrate, frequency deviation and bandwidth.

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                               Page 10 of 12

UG.DEV.SX126x.W.APP          March 2018                                                                              Semtech
6.3 Frequency Setting

    In this menu you can set the frequency for each modulation:

    -  Select the frequency Step that you wish to tune: from 1 Hz to 10 MHz

    -  With - and + change the value of the step of your tuned frequency

    -  The resulting frequency in displayed in Freq

    -  Additionally you can select one of the three Preset frequencies by simply

       pressing the desired frequency value.

                                                                                                     Figure 11: Frequency Setting Display

7.  Utilities

    In this menu you can reset the SX1261/SX1262 Development Kit to its factory

    settings:

      Press on Fact. Reset

    The Utilities section is also useful to check the Firmware Version

    You can modify:

    -  the RxBoost mode: On (True) or Off (False)

    -  the power regulation mode (DC Reg): either DCDC or LDO

    -  the Packets limit: Infinite, 100, 200, 500 or 1000

                                                                                                     Figure 12: Utilities Display

8.  Revision History

       Version                           Date                   Modifications

       1.0                   October 2017                       First Release

       1.1                   March 2018                         Update of the contents of delivery

                                                                Update of the display illustrations

                                                                Update of the LoRA and GFSK Modulation settings

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                                   Page 11 of 12

UG.DEV.SX126x.W.APP          March 2018                                                                          Semtech
Important Notice

Information relating to this product and the application or design described herein is believed to be reliable, however such

information is provided as a guide only and Semtech assumes no liability for any errors in this document, or for the application or

design described herein. Semtech reserves the right to make changes to the product or this document at any time without notice.

Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and

complete. Semtech warrants performance of its products to the specifications applicable at the time of sale, and all sales are made in

accordance with Semtech’s standard terms and conditions of sale.

SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT

APPLICATIONS, DEVICES OR SYSTEMS, OR IN NUCLEAR APPLICATIONS IN WHICH THE FAILURE COULD BE REASONABLY EXPECTED TO

RESULT IN PERSONAL INJURY, LOSS OF LIFE OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE.                  INCLUSION OF SEMTECH

PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer

purchase or use Semtech products for any such unauthorized application, the customer shall indemnify and hold Semtech and its

officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages and attorney fees which could

arise.

The Semtech name and logo are registered trademarks of the Semtech Corporation. All other trademarks and trade names mentioned

may be marks and names of Semtech or their respective companies. Semtech reserves the right to make changes to, or discontinue

any products described in this document without further notice. Semtech makes no warranty, representation or guarantee, express or

implied, regarding the suitability of its products for any particular purpose. All rights reserved.

© Semtech 2018

Contact Information

                                                       Semtech Corporation

                                                       Wireless & Sensing Products

                                         200 Flynn Road, Camarillo, CA 93012

                                                       E-mail: sales@semtech.com

                                         Phone: (805) 498-2111, Fax: (805) 498-3804

                                                       www.semtech.com

Wireless & Sensing Products

User Guide for the SX1261 and SX1262 Development Kits  Rev 1.1                                       Page 12 of 12

UG.DEV.SX126x.W.APP          March 2018                                                              Semtech
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