Description Design supports development systems with Atmel's FSK/

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Description Design supports development systems with Atmel's FSK/

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Hardware Description Design
Description
Design supports development systems with Atmel's FSK/ASK remote control transmitters FSK/ASK remote control receivers. Design consists motherboard (microcontroller board), receiver (receiver design board), transmitter (transmitter design board), interface board various other components. configuration receiver transmitter programmable with Design software. data communication between application boards works serial port (RS-232).
Hardware Description Design Application Note
Design Contents
Design built modular manner, that motherboard operate almost whole transmitter receiver family. Please bear mind that motherboard, desired transmitter board, receiver board have ordered separately. Hence, complete set, illustrated Figure page look slightly different various versions. various versions corresponding board order numbers found selection guide
Motherboard ATAB-RFMB
Motherboard (Microcontroller Board) Interface Board 9-pin RS-232 Cable Power Cable Atmel CD-ROM "Software/Documentation" Atmel CD-ROM "Products"
Transmitter Board
Transmitter Design Board Lithium Battery CR2032 Jack Transmitter Design Board
(Used Supply Transmitter from Battery)
Receiver Board
Receiver Design Board Whip Antenna with Connector (Male) Adapter (Female) (Female)
Rev. 4718C-RKE-11/05
Figure 2-1.
Contents
Hardware Description Design
4718C-RKE-11/05
Hardware Description Design
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 schematic given Figure page (only actually assembled components illustrated). function LEDs described Table page
Figure 3-1.
Building Blocks Motherboard Power-on switch Contact strips connect interface board Contact strips connect receiver board
Plug-in connector power cable
Power supply indication
Sensitivity indication
RS232 connector
IC_ACTIVE indication (RX)
Reset
Reset RS-232 communication indication
4718C-RKE-11/05
Table 3-1.
Designator
Function LEDs Motherboard
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.
Hardware Description Design
4718C-RKE-11/05
Figure 3-2.
74132 RESET OC1B XTAL2 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) XTAL1 7402 U10A
R1in 90S8515
4718C-RKE-11/05
Schematic Motherboard
DB9F-B
R2in
R2out
R1out
T2out
T2in
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)
T1out
T1in
Hardware Description Design
Interface Board
interface board (see Figure 4-1) consists socket programming transmitter design board five LEDs different functions illustrated Table 4-1. protection against short circuits, programming socket equipped with polarizing between Figure 4-1. Interface Board Polarizing Programming socket
Table 4-1.
Designator
Function LEDs Interface Board
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
Hardware Description Design
4718C-RKE-11/05
Hardware Description Design
Operation Design
Assembly Components
configure transmitter receiver, appropriate design board must connected motherboard. prevent damaging, interface board, design boards must plugged-in shown Figure 5-1. 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 "Software Description Design Kit". Figure 5-1. Assembly Components
4718C-RKE-11/05
5.2.1
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
5.2.2
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.
5.2.3
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.
Hardware Description Design
4718C-RKE-11/05
Hardware Description Design
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 5-2. 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 1/BR (BR: baudrate, manchester code) Start measurement measurement
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.
4718C-RKE-11/05
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4718C-RKE-11/05

Description Design supports development systems with Atmel's FSK/

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