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Summary of Contents for Atmel STK511
- Page 1 ® STK511 ® -Based Uni-Directional Radio Starter Kit...
- Page 2 STK511 ® Outline Introduction Kit Contents Receiver Application Board Receiver Interface Board Stand-alone Operation Operation with STK500 Transmitter Application Board System Setup General Setup Demo Setup – Hardware Demo Setup – Software Demo Receiver Configuration Demo Transmitter Configuration Running the Demo...
- Page 3 STK511 ® Introduction UHF radio covers 315, 434, 868 and 915 MHz Supports “intelligent” receiver ICs Atmel reference design receiver uses AVR ® in STK500 Atmel reference design transmitter uses ATtiny13 Supports 8-pin TSSOP PLL transmitters ICs ASK or FSK transmission is pushbutton selectable...
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Page 4: Kit Contents
STK511 ® Kit Contents STK511 Receiver Interface Board (IFB) RF Receiver Application Board (RAB) – one of the following: T5743 (315/433.92 MHz) T5760 (868 MHz) T5761 (915 MHz) RF Transmitter Application Board (TAB) – one of the following: Tiny13 + T5750 (868/915MHz) Tiny13 + T5753 (315MHz) Tiny13 + T5754 (433.92MHz) - Page 5 STK511 ® Receiver Application Board Registers part of Atmel receivers (T5743/60/61) OPMODE & LIMIT set performance of receiver Must be reprogrammed upon power-up Programmed using one-wire protocol over DATA line LED to indicate IC activity Test points for viewing signal activity...
- Page 6 STK511 ® Receiver Interface Board 18-Mrz-05...
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Page 7: Stand-Alone Operation
DIP switches set configuration register values Embedded firmware (ATmega8515) programs registers Example: Change modulation to ASK Set DATA selector switch on IFB to STK511 Set OPMODE register DIP switch # 5 to “ON” position Verify “Mod” LED is illuminated (indicating ASK) Press “CONFIGURE”... - Page 8 STK511 ® Operation with STK500 STK511 Interface Board is an STK500 expansion card Still permits DIP switch programming of configuration registers Connects receiver signals to STK500 STK500 Capabilities Allows user to select any AVR ® for system development Creates environment for easy prototyping...
- Page 9 STK511 ® Transmitter Atmel ATtiny13 AVR controls T575x transmitter ® Calibrated internal RC oscillator minimizes external parts Programmable using exposed 6-pin ISP header Multi function I/O (5 places) Button input LED driver A/D converter RF transmission control ASK or FSK RF modulation FSK modulation by “pulling”...
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Page 10: General Setup
STK511 ® General Setup Stand-alone Operation (RAB to IFB Assembly) Align signal pins of RAB near DIP switches on IFB Align “+” and “GND” test points of RAB near DATA switch on IFB Insert RAB into 12-pin header connectors on IFB Apply +5V supply to “+”... - Page 11 STK511 ® Demo Setup - Hardware Verify AT90S8515 AVR ® in 40-pin SCKT3000D3 (red silkscreen) Short VTARGET jumper setting on STK500 Verify cable connections DB9: From RS232 CTRL and host PC serial port 6-wire ribbon: Between SPROG3 and ISP6PIN headers...
- Page 12 On Board tab, verify VTARGET voltage set to 5V On Program tab In Device, select AT90S8515 from pull-down menu In Flash, browse Input Hex File field to STK511 Decode Software v2.0.hex located on CD Click Program button to complete programming 18-Mrz-05...
- Page 13 STK511 ® Demo Receiver Configuration Set DATA selector switch on IFB to STK511 Set DIP switches as follows (SW#1 …SW#12): OPMODE register: 000100011001 LIMIT register: 010101101001 Default values printed on board silkscreen below DIP switch Press “CONFIGURE” button to write values into registers...
- Page 14 STK511 ® Demo Transmitter Configuration Shipped in low current “sleep” mode Periodic RF transmission starts upon button release LED(s) blinks on RF activity RF contains ambient light level data Toggle ASK/FSK by pressing buttons simultaneously FSK selected if both LEDs blink ASK selected if only one LED blinks Reverts to “sleep”...
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Page 15: Running The Demo
STK511 ® Running the Demo Light intensity shown as LED bar graph on STK500 Varying ambient light level changes LED bar graph As light gets brighter, more LEDs turn on Darkness corresponds to all LEDs off ¼-second RF transmit interval yields real-time updates “DATA”... - Page 16 ® Conclusion STK511 is a … Flexible development system compatible with the STK500 Quality support tool that supports many Atmel devices STK511 enables … Easy chipset evaluation of Atmel's uni-directional RF radios Fast design and verification of AVR -based RF radios ®...
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