Design supports development systems with Atmel's FSK/ASK remote contro

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Design supports development systems with Atmel's FSK/ASK remote contro

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Hardware Description Design ATAK57xx
Design supports development systems with Atmel's FSK/ASK remote control transmitters T57xx FSK/ASK remote control receivers T57xx. Design consists motherboard (microcontroller board), receiver (receiver design board), transmitter (transmitter design board), interface board various other components listed below. configuration receiver transmitter programmable with Design software. data communication between application boards works serial port (RS-232). various versions corresponding order numbers listed separate document "Selection Guide Design ATAK57xx".
ATAK57xx Hardware Description Application Note Preliminary
Design Contents
Motherboard (Microcontroller Board) Interface Board Transmitter Design Board ATAB57xx Receiver Design Board ATAB57xx 9-pin RS-232 Cable Power Cable Whip Antenna with Connector (Male) Lithium Battery CR2032 Jack Transmitter Design Board (Used Supply Transmitter from Battery) Adapter (Female) (Female) Atmel CD-ROM "Software/Documentation" Atmel CD-ROM "Products"
Please bear mind that components provided with Design Kit, illustrated Figure page look slightly different various kits.
Rev. 4718A-RKE-11/03
Figure Contents
Motherboard
Features
Flexibility Operate Various Transmitter Receiver Design Boards Power Supply with Short-circuit Protection RS-232 Connector Power-on Switch Plug-in Connector Power Cable Four Contact Strips Connect Interface Board Receiver Design Board Power Supply Indication RESET Sensitivity Indication IC_ACTIVE Indication Receiver Indication RESET Communication over RS-232
General Functionality
motherboard AVR®-based microcontroller board which handles data communication with Design software connected receiver design board transmitter design board. building blocks shown Figure page schematic given Figure page (only actually assembled components illustrated). function LEDs described Table page
ATAK57xx Hardware Description [Preliminary]
4718A-RKE-11/03
ATAK57xx Hardware Description [Preliminary]
Figure Building Blocks Motherboard Power-on switch Plug-in connector power cable Contact strips connect interface board Contact strips connect receiver board
Power supply indication
Sensitivity indication
RS232 connector
IC_ACTIVE indication (RX)
Reset
Reset RS-232 communication indication
Table Function LEDs Motherboard
Designator Colour Green Function Flashes after RESET during communication RS-232 IC_ACTIVE receiver, operated inversely IC_ACTIVE receiver design board Receiver inactive (sleep mode) Receiver active (bit-check receiving mode) Sensitivity indicator Full sensitivity Reduced sensitivity power supply indicator motherboard contact strips Voltage Voltage Comment Depending programmed sleep times receiver this switches rather quickly. inertia human eye, this seems though flashing. When increasing sleep time, emits brighter light vice versa.
Yellow
Green
Contact strips used power supply interface board receiver design board.
4718A-RKE-11/03
Figure Schematic Motherboard
DB9F-B
R1in 90S8515
R2in
RESET OC1B XTAL1 PB0(T0) PA0(AD0) PB1(T1) PA1(AD1) PB2(AIN0) PA2(AD2) PB3(AIN1) PA3(AD3) PB4(SS) PA4(AD4) PB5(MOSI) PA5(AD5) PB6(MISO) PA6(AD6) PB7(SCK) PA7(AD7) XTAL2 7402 74132 U10A
R2out
R1out
PD0(RXD) PC0(A8) PD1(TXD) PC1(A9) PD2(INT0) PC2(A10) PD3(INT1) PC3(A11) PC4(A12) PD5(OCA1) PC5(A13) PD6(WR) PC6(A14) PD7(RD) PC7(A15)
T2out
T2in
T1out
T1in
VC20
ATAK57xx Hardware Description [Preliminary]
4718A-RKE-11/03
ATAK57xx Hardware Description [Preliminary]
Interface Board
interface board (see Figure page consists socket programming transmitter design board five LEDs different functions illustrated Table page protection against short circuits, programming socket equipped with polarizing between Figure Interface Board Polarizing Programming socket
Table Function LEDs Interface Board
Designator Color Blue Orange Yellow Green Function ready receive data from connected receiver Flashing data being received Testword incorrect microcontroller limits page Microcontroller limits selected borders Testword microcontroller limits page Communication RS-232 active
Operation Design
Assembly Components
configure transmitter receiver, appropriate design board must connected motherboard. prevent damaging, interface board, design boards must plugged-in shown Figure page motherboard connected serial port (RS-232). configuration will Design software. During configuration, microcontroller motherboard handles data communication with receiver design board transmitter design board. When configured, transmitter design board operates stand-alone removed. installation Design software explained separate document "ATAK57xx Software Description".
4718A-RKE-11/03
Figure Assembly Components
Starting Design
Connecting Design ensure proper operation, following steps should carried before starting Design software: Insert lithium cell into battery holder transmitter design board. Check that Design assembled shown Figure page Connect 9-pin RS-232 cable unused serial port. Connect power cable power supply unit (on-board regulator). Switch power supply motherboard. Switch start operating system. Press reset button (Key RESET). Start Design software with command: RF-Designkit.exe Progamming Transmitter Design Board Remove jack from transmitter design board. Plug transmitter design board into socket interface board. Program desired settings Design software. Remove transmitter design board from socket interface board. Plug-in jack supply transmitter from battery. transmitter design board operated stand-alone.
ATAK57xx Hardware Description [Preliminary]
4718A-RKE-11/03
ATAK57xx Hardware Description [Preliminary]
Programming Receiver Design Board receiver design board operates only conjunction with motherboard, hence proceed follows: Switch power supply motherboard. Plug receiver design board into contact strips shown Figure page Switch power supply motherboard. Program desired settings Design software.
Principle Function
After power microcontroller motherboard configures receiver. receiver then polling mode verifies presence valid transmitter signal. parameters bit-check (BR_Range, Nbitcheck, Tsleep, Lim_min, Lim_max) programmable with Design software. valid transmitter signal detected, receiver remains active transfers data stream connected microcontroller motherboard.
Figure Principle Function
Motherboard Receiver design board T57xx DATA Antenna Transmitter design board Antenna T57xx
Microcontroller
Valid transmitter signal Preburst Transmitter signal Testword
DATA Samples OFF-command Start measurement 1/BR (BR: baudrate, manchester code) measurement
4718A-RKE-11/03
microcontroller continuously measures time between signal edges sample). time 1/baud rate, following samples will stored microcontroller (start measurement/end measurement, Figure page Then, receiver will back polling mode microcontroller pulling DATA time timing limits 1/baud rate programmable Design software. samples will examined means microcontroller distinguish between valid signal from corresponding transmitter signals noise. This done time frame check where samples continuously compared programmable time window (µC_Limits). samples within time window received data stream equal programmable testword (Testword), this will indicated interface board. After evaluation received data stream, receiver will back polling mode. timing information samples) also evaluated with functions "Testword", "Histogram" "Timing_List" Design software menu.
ATAK57xx Hardware Description [Preliminary]
4718A-RKE-11/03
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4718A-RKE-11/03

Design supports development systems with Atmel's FSK/ASK remote contro

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