User’s Guide
SX1211-11SKA
ADVANCED COMMUNICATIONS & SENSING
SX1211-11SKA
User’s Guide: Advanced Mode
Revision 0.1 March 2009 © 2009 Semtech Corp.
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User’s Guide
SX1211-11SKA
ADVANCED COMMUNICATIONS & SENSING
Table of Contents
1
2
2.1
2.2
2.3
3
3.1
3.2
3.3
4
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
5
6
Introduction ................................................................................................................................................... 4
Getting Started .............................................................................................................................................. 5
Kit Contents..................................................................................................................................................... 5
Installation ....................................................................................................................................................... 5
SX1211SKA Overview .................................................................................................................................... 6
Quick Start Guide .......................................................................................................................................... 7
SX1211SKA Quick Start (All Modes) .............................................................................................................. 7
SX1211SKA Receive Mode Configuration...................................................................................................... 9
SX1211SKA Transmit Mode Configuration................................................................................................... 10
SX1211SXA Software Description ............................................................................................................. 11
Overview ....................................................................................................................................................... 11
File Menu....................................................................................................................................................... 11
Shortcut Buttons............................................................................................................................................ 12
Text Field Conventions for the SX1211SKA ................................................................................................. 13
McParam Tab................................................................................................................................................ 13
Overview Panel ............................................................................................................................................. 15
Register Hexadecimal Display ...................................................................................................................... 15
The Mode Control Box .................................................................................................................................. 16
The IrqParam Tab ......................................................................................................................................... 17
The RxParam Tab ......................................................................................................................................... 17
The TxParam Tab ......................................................................................................................................... 19
The OscParam Tab ....................................................................................................................................... 20
The Packet Test Tab..................................................................................................................................... 20
Schematics and 2-Layer PCB Layout: SX1211SKA................................................................................. 23
References ................................................................................................................................................... 25
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User’s Guide
SX1211-11SKA
ADVANCED COMMUNICATIONS & SENSING
Table of Figures
Figure 1. SX1211 Application Circuit
.............................................................................................................................4
Figure 2. SX1211SKA Contents.....................................................................................................................................5
Figure 3. SX1211SKA Board Picture
.............................................................................................................................6
Figure 4. SX1211 User Interface, Default Settings
........................................................................................................7
Figure 5. The New SX1211 Configuration: Ready to be Written
...................................................................................8
Figure 6. The SX1211SKA User Interface whilst in Packet Receiver Mode..................................................................9
Figure 7. The SX1211SKA User Interface Ready to Transmit the Demonstration Packet..........................................10
Figure 8. SX1211SKA GUI Overview and References to the User Guide Description of this Chapter.......................11
Figure 9. Example Text Editor Output of the SX1211 Configuration File
....................................................................12
Figure 10. SX1211 Local Oscillator Generation...........................................................................................................15
Figure 11. The Overview Panel....................................................................................................................................15
Figure 12. The Hexadecimal Register Display Summary
............................................................................................16
Figure 13. The Mode Control Box also Incorporates RSSI.........................................................................................16
Figure 14. The Interrupt Mapping Display....................................................................................................................17
Figure 15. SX1211 Receiver Block Diagram, the Colours Correspond to the Frequency of Operation......................17
Figure 16. Receiver Parameter Display
.......................................................................................................................18
Figure 17. SX1211 Simplified Transmitter Block Schematic Diagram.........................................................................19
Figure 18. The Transmitter Parameter Tab Display.....................................................................................................19
Figure 19. The Oscillator Parameter Display
...............................................................................................................20
Figure 20. The Packet Receiver / Transmitter Test Display
........................................................................................21
Figure 21. Software Display: Successful Packet Mode Reception
..............................................................................22
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User’s Guide
SX1211-11SKA
ADVANCED COMMUNICATIONS & SENSING
1 Introduction
The SX1211 is a single chip transceiver IC designed for operation in the European 868 MHz and U.S. 915 MHz
licence free ISM bands. The SX1211 is optimized for very low power consumption (3mA in receiver mode). It
incorporates a baseband modem with data rates up to 200 kb/s. Data handling features include a sixty-four byte
FIFO, packet handling, automatic CRC generation and data whitening. Its highly integrated architecture allows for
minimum external component count whilst maintaining design flexibility. All major RF communication parameters are
programmable and most of them may be dynamically set.
The SX1211SKA is a USB evaluation tool designed to allow simple and easy evaluation of the suitability of the
SX1211 for a given application. The low component count reference design implemented in the SX1211SKA is
shown below:
Figure 1. SX1211 Application Circuit
The SX1211 main features include:
Low Rx power consumption: 3mA
Low Tx power consumption: 25 mA @ +10 dBm
Good reception sensitivity: down to -107 dBm at 25 kb/s in FSK, -113 dBm at 2kb/s in OOK
Programmable RF output power: up to +12.5 dBm in 8 steps
Packet handling feature with data whitening and automatic CRC generation
Wide RSSI (Received Signal Strength Indicator) dynamic range, 70dB from Rx noise floor
Bit rates up to 200 kb/s, NRZ coding
On-chip frequency synthesizer
FSK and OOK modulation
Incoming sync word recognition
Built-in Bit-Synchronizer for incoming data and clock synchronization and recovery
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User’s Guide
SX1211-11SKA
ADVANCED COMMUNICATIONS & SENSING
2
Getting Started
2.1 Kit Contents
As illustrated in the figure below, the SX1230-11SKA Evaluation kit is composed of:
A pair of SX1211SKA boards
SX1211-11SKA CDROM including all necessary PC software and documentation
Figure 2. SX1211SKA Contents
2.2 Installation
SX1211SKA Advanced Mode Software Installation
1- Put the CDROM in your computer and browse the contents of the CD.
2- Open the “sx1211starterkitsetupweb.exe” manually. It can be found in the \Installers sub directory of the
CD-ROM.
3- Follow installation guidelines until the process is completed. Please note that .NET Framework 2.0 and the
FTDI USB driver will be automatically installed if not detected on your computer.
4- Connect the SX1211SKA board to the PC via the USB interface.
5- Launch “SX1211SKA” from the Start menu.
6- Click on “Connect” button in toolbar or in File menu.
7- SX1211SKA is now installed and ready to be used.
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