Related Manuals for Atmel AT86RF211
Summary of Contents for Atmel AT86RF211
- Page 1 AT86RF211 Development Kit ....................User Guide...
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Page 3: Table Of Contents
Example: Measurement of Sensitivity .............4-12 Section 5 Using this Kit to Develop Prototypes ............ 5-1 Section 6 Schematics, Layout and Additional Software Tools......6-1 Schematics and Layout................6-1 Additional Software Tools for Sleep Mode Implementation ......6-1 AT86RF211 Development Kit User Guide 5307C–WIRE–04/04... - Page 4 AT86RF211 Development Kit User Guide 5307C–WIRE–04/04...
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Page 5: Introduction
NO WARRANTY OF ANY KIND can apply. The user MUST read the user guide BEFORE using this kit, to know its features and use it accordingly. NO LIABILITY will be accepted by Atmel, whatsoever may arise as a result of the use of these boards. -
Page 6: Overview
Several part numbers are available, adapated to every application: long distance, lower cost, printed antennae and inductors. Figure 1-2. Example of RF module Please refer to the Bill of Material application note to choose the board that best adapts to your needs. AT86RF211 Development Kit User Guide 5307C–WIRE–04/04... -
Page 7: Hardware Description
Section 2 Hardware Description All schematics and layouts are given in Appendix 1. The RF module is ordered and delivered separately AT86RF211 Development Kit User Guide Rev. 5307C–WIRE–04/04... -
Page 8: Power Supply
Note: This 5V output is available for other circuits. If the AT86RF211 is powered through this 5V converter, output noise could decrease the performances of the transceiver, and an addi- tional relevant filtering stage would have to be added. - Page 9 Hardware Description ® A connector for In System Programming JP2. An Atmel AVR dongle must be used, ® and its cable simply plugged into JP2. 5V is required by some AVR dongles to work properly. Several filtering stages are foreseen at critical places: radio/digital interface, connectors to the “external world”.
- Page 10 Hardware Description AT86RF211 Development Kit User Guide 5307C–WIRE–04/04...
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Page 11: Using This Kit For Demonstration
The slave unit scans the radio activity once every 2 seconds and responds to any valid request. Figure 3-1. Master/Slave Data Transmission Master Slave Transmission timeslot Listening timeslot Transmission Listening timeslot timeslot AT86RF211 Development Kit User Guide Rev. 5307C–WIRE–04/04... -
Page 12: Data Frames
Press the button. The following screen appears: Light Polling The blinking black cursor indicates that you can make a selection by turning the rotary switch on the side of the development kit unit. AT86RF211 Development Kit User Guide 5307C–WIRE–04/04... -
Page 13: Light Polling
The level can of course be adjusted by turning the rotary switch and pressing the button to confirm the choice and exit. 3.4.3 Setting the Frequency Frequency band 433 MHz As before, use the rotary switch and the button to select and confirm your choice. AT86RF211 Development Kit User Guide 5307C–WIRE–04/04... - Page 14 Using this Kit for Demonstration Purposes AT86RF211 Development Kit User Guide 5307C–WIRE–04/04...
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Page 15: Using This Kit For (Rf) Evaluation
Using this Kit for (RF) Evaluation ® By switching S2 to the “up” position, the AT86RF211 is disconnected from the AVR microcontroller and connected to connector JP1 (upper right side of the board). By con- necting this 6-pin connector, JP1, to a PC’s printer port (via the dongle included in the kit), and using the PC software, you will be able to set up the transceiver to meet your needs (i.e. - Page 16 It is best to ignore this option for now. Icons can be created afterwards depending on your preferences (quicklaunch, desktop...). 5. The program launches the installation of: TCL / TK Drivers You should install these two programs before launching the software itself. AT86RF211 Development Kit User Guide 5307C–WIRE–04/04...
- Page 17 This screen asks you to insert the ‘Jungo Installation Disc’. Simply click OK. This screen explains that the file ‘windrvr6.sys’ on the Jungo Installation Disc cannot be found and that files should be copied from C:\AT86RF211\Drivers. Ignore these mes- sages and continue the installation by clicking on OK.
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Page 18: Software Description
The configuration is sent to the AT96RF211, and a link is established with the transceiver. It also gives you access to the contents of the registers. The main menu is called the demo_ AT86RF211(TRX01) menu, where you are able to: – RESET (AT86RF211 hardware reset) –... - Page 19 – Enter your frequency channel, the deviation and then click on COMPUTE. The software will calculate and display the two closest frequencies (F0 for logical “0” and F1 for logical “1”) that the AT86RF211 is able to synthesize. “eps [Hz]” gives you the errors between expected and actual synthesized frequencies.
- Page 20 COMPUTE. The software will calculate and display the two frequencies F2 and F3 (corresponding to the Upper Side or Lower Side Band) the AT86RF211 is able to synthesize. “eps [Hz]” gives you the difference between desired and synthesized frequencies.
- Page 21 Warning: There is NO simple relationship between F (in MHz) and these 2 x 32-bit, please always use this procedure to find out the bits that must be written in AT86RF211 registers (do NOT try to modify the bits directly!).
- Page 22 5. Click on INIT to go back to the default RESET configuration of AT86RF211. 4.2.2 DEMO (Action Menu) 1. When you click on EXECUTE, the defined configuration is sent into AT86RF211 (if not already done, the frequency codes are automatically computed). The link...
- Page 23 – View CTRL & STATUS BOARD REG: image of CTRL1, CTRL2 and STAT register – View FREQ & DTR BOARD REG: image of the 4 frequencies and DTR registers 5. Click on RESET to set AT86RF211 in the Reset state (refer to the datasheet for values). AT86RF211 Development Kit User Guide 5307C–WIRE–04/04...
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Page 24: Debug Mode
3. The shift is performed when you click on the “+” and “-” buttons. Warning: Do NOT try to modify frequencies by changing bits into registers. There is no simple relationship between F (in MHz) and the corresponding 32 bits. 4-10 AT86RF211 Development Kit User Guide 5307C–WIRE–04/04... - Page 25 Set-up the chip as a Transmitter in order to measure its parameters: peak power, spec- Measurement of trum purity (the input attenuator of spectrum analyzer should be > 40 dB). Output Power and Spectral Purity AT86RF211 Development Kit User Guide 4-11 5307C–WIRE–04/04...
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Page 26: Example: Measurement Of Sensitivity
You can get an initial idea of the sensitivity by reducing the RF level until the DATAMSG disappears (an actual measurement would measure BER). Typical sensitivity of this board is around -100 dBm in previous measurement conditions (for a BER = 0.01). 4-12 AT86RF211 Development Kit User Guide 5307C–WIRE–04/04... -
Page 27: Using This Kit To Develop Prototypes
In System ® Programming possibilities. An Atmel AVR dongle is required (i.e. AT AVR ISP, or STK 200, 300 or 500 AVR Starter Kit). Note that some dongles also require 5V to work properly. AT86RF211 Development Kit User Guide Rev. 5307C–WIRE–04/04... - Page 28 2. The PLCC package was chosen to allow emulation or use of another AVR. Part Number. Naturally, you can use Atmel relevant tools (simulator, Emula- tor…) for debugging purposes. Please see www.atmel.com to find a list of available tools. AT86RF211 Development Kit User Guide...
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Page 29: Schematics, Layout And Additional Software Tools
Schematics and Please refer to Appendix 1 “Schematics and Layouts” in the User Guide. Layout Additional Please refer to Appendix 2 “Sleep Mode Implementation” in the User Guide. Software Tools for Sleep Mode Implementation AT86RF211 Development Kit User Guide Rev. 5307C–WIRE–04/04... - Page 30 Schematics, Layout and Additional Software Tools AT86RF211 Development Kit User Guide 5307C–WIRE–04/04...
- Page 31 No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems.
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