Summary of Contents for Semtech SX1231SKB
- Page 1 SX1231-31SKB USER GUIDE SX1231SKB USER GUIDE Revision 2.0 – July 2010 Page 1 of 24 www.semtech.com © Semtech 2010...
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Page 2: Table Of Contents
Introduction ............................4 Getting Started............................5 Evaluation Kit Contents ....................... 5 Installation............................ 6 SX1231SKB Overview......................... 6 SX1231 Quick Start Guide........................6 SX1231SKB Software Description......................6 Overview ............................6 Menu Tool Bar ..........................7 4.2.1 File Menu..........................7 4.2.2 Action Menu..........................8 4.2.3... -
Page 3: Index Of Figures
Index of Figures Figure 1: SM1231 Application Schematic ..................... 4 Figure 2: SM1231 Module Mounted on USB Bridge..................5 Figure 3: SX1231SKB GUI Overview ......................7 Figure 4: File Menu Options.......................... 8 Figure 5: Action Menu Options........................8 Figure 6: Tools Menu Options........................9 Figure 7: Help Menu Options ........................ -
Page 4: Introduction
SX1231 for a given application. The low component count reference design implemented in the SM1231 reference design is illustrated below in Figure 1. Figure 1: SM1231 Application Schematic Revision 2.0 – July 2010 Page 4 of 24 www.semtech.com © Semtech 2010... -
Page 5: Getting Started
2 x ¼ wave monopole antennas • Installation CD or insert sheet • 2 x USB cables LED 2 LED 3 Figure 2: SM1231 Module Mounted on USB Bridge Revision 2.0 – July 2010 Page 5 of 24 www.semtech.com © Semtech 2010... -
Page 6: Installation
3 SX1231 Quick Start Guide It is recommended that this user guide is read in conjunction with the SX1231 datasheet. 1. Plug the SX1231SKB into the USB port of the computer. The USB power LED on the bridge should be illuminated 2. -
Page 7: Menu Tool Bar
Windows file dialog box and may also be accessed through the short cut buttons of the Window Toolbar. Save Config allows for SX1231SKB configuration files (.cfg) to be saved. This is implemented through a standard Windows file dialog box. The default file name is the last config file saved. -
Page 8: Action Menu
RSSI analyzer provides a graphical representation of the signal level at the antenna port measured within the RX filter channel bandwidth, RxBw, at the programmed RF frequency. Refer to See Section 6 for further details. Revision 2.0 – July 2010 Page 8 of 24 www.semtech.com © Semtech 2010... -
Page 9: Help Menu
Help provides an online description of GUI commands User’s Guide… opens a PDF version of this document. About… provides details of the GUI revision. The latest version of the SX1231 GUI can be downloaded from the Semtech website. Figure 7: Help Menu Options 4.3 Window Toolbar The Windows Toolbar provides three buttons that provide shortcuts to some of the functions accessed from the File drop-down menu. -
Page 10: Figure 9: Example Configuration File Text Editor Output
SX1231-31SKB USER GUIDE Open Config button opens a Windows file dialog box to allow access to a previously saved SX1231SKB configuration file (.cfg). Note that saved configuration files are designed to be a useful tool for embedded software development. The file can be opened in any text editor or within a spreadsheet to display the programmed register name, address and contents, as illustrated below in Figure 9. -
Page 11: Status Bar
Irq description is illuminated, the Irq condition is true. Please refer to the SX1231 datasheet for further information and a more detailed description of the Irq register flags. Revision 2.0 – July 2010 Page 11 of 24 www.semtech.com © Semtech 2010... -
Page 12: Configuration Registers Tabs
The Common Configuration Registers tab is illustrated on the following page in Figure 13. Please refer to the SX1231 for a full description of the configuration register functions. Revision 2.0 – July 2010 Page 12 of 24 www.semtech.com © Semtech 2010... -
Page 13: Figure 13: Common Configuration Register Tab
Values entered manually that do not coincide with an exact configuration will be automatically updated by the GUI to the next valid register configuration and write that value to the appropriate configuration register. Figure 14: Dialog Box Error Message Revision 2.0 – July 2010 Page 13 of 24 www.semtech.com © Semtech 2010... -
Page 14: Modulation Mode Window
SX1230 datasheet for further information concerning measured output power vs. programmed power. Note that there is no requirement to cycle the SX1231 through Standby Mode. Figure 16: Transmitter Configuration Register Tab Revision 2.0 – July 2010 Page 14 of 24 www.semtech.com © Semtech 2010... -
Page 15: Receiver Configuration Register Tab
> 2, the DCC frequency is recommended to be approximately 4% of the receiver bandwidth, RxBw. The GUI will automatically set the appropriate DCC frequency based upon the setting of RX filter bandwidth. Figure 18: Rx Bandwidth Window Revision 2.0 – July 2010 Page 15 of 24 www.semtech.com © Semtech 2010... -
Page 16: Lna Gain Window
The RSSI window provides access to the RSSI timeout and timeout threshold functions and enable either automatic or manual RSSI detection threshold values to be programmed. Note that the RSSI threshold Revision 2.0 – July 2010 Page 16 of 24 www.semtech.com © Semtech 2010... -
Page 17: Irq & Mapping Configuration Register Tab
Data Dclk Plllock ClkOut TxReady TxReady Data LowBat TxReady LowBat LowBat AutoMode Data LowBat LowBat ModeReady PllLock TxReady Data PllLock ModeReady Table 1: Continuous Mode DIO Mappings Revision 2.0 – July 2010 Page 17 of 24 www.semtech.com © Semtech 2010... -
Page 18: Figure 22: Irq & Mapping Configuration Register Tab
TxReady LowBat LowBat LowBat LowBat FifoNotEmpty LowBat ModeReady PllLock PllLock AutoMode PLLlock PllLock Table 2: Packet Mode DIO Mappings Figure 22: Irq & Mapping Configuration Register Tab Revision 2.0 – July 2010 Page 18 of 24 www.semtech.com © Semtech 2010... -
Page 19: Packet Handler Configuration Register Tab
GUI: • Minimum Preamble Size = 2 bytes • Maximum Packet Length = 66 bytes (64 bytes of data + Length byte + Address byte) Revision 2.0 – July 2010 Page 19 of 24 www.semtech.com © Semtech 2010... -
Page 20: Temperature Configuration Register Tab
Figure 24: Temperature Calibration Dialog Box When the temperature sensor has been calibrate the temperature, as computed by the SX1231, will be displayed. Figure 25: Calibrated Temperature Sensor Tab Revision 2.0 – July 2010 Page 20 of 24 www.semtech.com © Semtech 2010... -
Page 21: Registers Display Window
CRC and / or AES may also be selected. The only limitation is that he maximum payload size for the purposes of GUI operation is 66 bytes Revision 2.0 – July 2010 Page 21 of 24 www.semtech.com © Semtech 2010... -
Page 22: Receiver Mode Configuration
Note that address and data are entered in hexadecimal format. The Antenna switch control dialog box enables control of the antenna diversity switch for the SX1231 antenna diversity reference design Figure 27: Test Mode Window Revision 2.0 – July 2010 Page 22 of 24 www.semtech.com © Semtech 2010... -
Page 23: Verification Mode Window
USER GUIDE 7.3 Verification Mode Window When no SX1231SKB is connected to the PC, launching the application results in the GUI display being grayed out and the user is unable to enter data. By depressing the <CTRL>+<ALT>+<N> keys of the PC keyboard simultaneously, the user can write to the configuration registers to verify propose settings, as well as load and save configuration files (*.cfg). - Page 24 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.