EVBavr03 evaluation board for AVR microcontrollers AT90S4144/8515, ATmega8515 and ATmega162. User`s manual REV 1.0. Many ideas one solution

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1 EVBavr0 evaluation board for AVR microcontrollers AT0S/, ATmega and ATmega. REV.0 User`s manual Evalu ation Board s for, AVR, ST, PIC microcontrollers Sta- rter Kits Embedded Web Serve rs Prototyping Boards Minimodules for microcontrollers, etherdesigning Evaluation Boards for net controllers, RFID High Spe- ed In System programmers for AVR, PIC, ST microcontrollers Microprocesor systems, PCB, AVR, ST, PIC microcontrollers Starter Kits Embedded Web Servers Prototyping Boards mi- nimodules for microcontrollers, ethernet controllers, RFID High Speed In Systems programme- rs for AVR, PIC, ST microcontrlollers Microprocesor systems, PCB designing Evaluation Bo- ards for `, AVR, ST, PIC microcontrollers Starter Kits Embe- dded Web Serwers Prototyping Boards Minimodules for microcontrollercontrollers, ethernet controllers, High Speed In System program- mers for AVR, PIC, ST microco- Microprocesor R Many ideas one solution Systems, PCB Designing Evaluation Boards

2 . Introduction EVBavr0 is a development board designer for the hobbyist and engineers who want to quickly prototype their system based on AVR microcontrollers from Atmel. Developer has access to all pins of the micro, which are brought to the header (pin connectors) and labeled accordingly. Depending upon the board`s configuration (listed versions) some or all of the following components are found on the board: potentiometer, two relays, buzzer, RTC (real time clock), four seven-segment LEDs, RS interface, JTAG connector and LCD display (x). The pin headers provided allow easy access to all these components. In addition, there are eight micro-switches and eight diodes which could be connected to any of the pin connectors or additional components, which may be placed on the large, adjacent prototype area. The power circuitry on board (bridge, voltage regulator) eliminates the need for an external regulated power supply. This board comes with the several examples of the C code routines (source from), to facilitate testing and quick development in using the board`s resources. We wish great success and full satisfaction while designing and constructing appliances based on EVBavr0.

3 . Board layout.. Prototype area.. Additional components connector.. LED`s and micro-switches. Potentiometr. switch. Accumulator`s voltage output pin. Accumulator V.. Speaker. JTAG connector. SPI Programmer header.. Power ON/OFF switch.. Input power jack (AC/DC).. Relay`s headers.. RS port. Processor, led out and doubled processor ports.. Real Time Clock DS.. LM voltage regulator.. LCD display (optional).. -segment LED.

4 . Supported processors AT0S/ ATmega ATmega FLASH / kb kb kb SRAM / b b kb EEPROM / b b b Pheripherals Supply voltage -bit Timer/Counter, Analog comparator, SPI, Programmable timer Watchdog with integrated oscillator. UART. V V ver. V V ver. Up to kb optional external memory space -bit Timer/Counter, -bit Timer/Counter, Analog komparator, Three PWM channels Programmable timer Watchdog, SPI, Full Duplex UART.V.V.V.V ver.l Up to kb optional external memory space -bit Tirem/Counter, -bit licznik, Analog komparator programmable Watchdog, six PWM channles SPI, USI Full Duplex UART JTAG.V.V.V.V ver.v Clock frequency 0- MHz ver. 0- MHz ver. 0- MHz ver.l 0- MHz ver. ATmegaV: 0 - MHz ATmega: 0 - MHz Temperature range -0 + C Cases 0-pin PDIP. Power supply for board Recommended external power supply voltage is -V AC, or -V DC. A standard power jack (bolt diameter.mm - negative) is provided at the edge of the board. Stabilized voltage is available on the double header and on the prototype area of the board. The selection of the is provided through a V header. The default voltage is V DC (no jumper on V header). By placing a jumper becomes. VDC. The SUPPLY header allows for direct access to the power jack input. Placing a jumper by passes the bridge and voltage regulator.

5 . Peripheral circuits.. LEDs The board has LED diodes, which make the simplest interface between the system and the user. This is especially useful for the beginners, who want to manipulate or debug their program with different hardware configurations. The diode turns on after grounding of the associated Ldn (n = 0 ) pin. Figure. LED diodes.. Switches The board is equipped with micro-switches. Pressing one of them causes grounding of the corresponding pin on the SW header. Figure. Switches

6 .. Relay Acces to the relay circuitry consist of the REL pin of the MISC header and pins: NC,NO,COM of the relay header. REL pin is indirectly connected to the base of the transistor. Logic level ( or.v DC) applied to the REL pin, will activate the relay. External circuits can be controlled via NC, NO, COM I/O pins. Figure. Relay schematic.. Acoustics indicator (speaker) The board has an acoustic indicator turned on and off by the transistor. The base of the transistor is connected to the SPK pin of the MISC header. Logic level `` ( or.v DC) applied to the SPK pin, will activate the speaker. Figure. Implementation of acoustic indicator..potentiometer The board is equipped with one potentiometer, allowing for simulation of the analog circuit outputs. The potentiometer enables the adjustmet of voltage in the range 0-. The potentiometer output is accessible on ADJ pin of the MISC connector.

7 Figure. Potentiometer..Sevensegment LED display The board is equipped with four -segment led display. They make an interface bettwen the system and the user, allowed to display up to four chars. Each led display has two anodes, seven segments and DP (digital point), which become active after applied to their pin logic level 0. Figure. Implementation of -segment LED..RS Interface There is a DB- connector on the board, connected with the ST state converter. On the other side of the converter there are pin connectors with converter circuit terminals, allowing to plug in to the processor... Real Time Clock DS The board has one real time clock with accumulator V teh board ca be also supply form accumulator). The clock communicates with the micro through the IC interface. All the connections needed for controlling the DS circuit are brought out to the Rtc pin header. The accumulator pin is also placed on the header... LCD display The board has one LCD display interface. The LCD connector has four data lines and two control lines: strobe line E and control line R/S. The dispaly R/W line is permanently

8 connected to ground; all other lines are available at the pin header. The adjustmet of contrast id done by two way: by potentiometr ADJ CONT which output pin ADJC must be then connected with LCD`s pin CONT. programmable,then LCD`s pin CONT must be connected to the processor... Potentiometer ADJ CONT There is a ADJ CONT potentiometer, which allows to control the contrast on LCD. Then output pin ADJC must be connected with LCD`s pin CONT... V potentiometer. The board is equipped with one potentiometer, alowing to regulate voltage between., V ( even if V jumper is closed)... JTAG connector This interface is useful as a mechanism for debugging embedded systems, providing a convenient "back door" into the system..header and connectors..procesor and pheripherals connectors Procesor`s pins description Vproc- procesor voltage supply ground RST reset XT- clock input XT- clock output RST,XT,XT when not connected, may be used as signal pins PA0...PA procesor`s port A PB0...PB procesor`s port B PC0...PC procesor`s port C PD0...PD procesor`s port D PE0...PE procesor`s port E Figure. Procesor connector -segment LED pins A0...A anodes supply A,B,C,D,E,F,DP segments supply (description on the board) Figure.Sevensegment LED`s connector

9 RS pins RxD, TPD RS signals Figure. RS connector Figure. RTC connector Real Time Clock pins VBAT accumulator FT real time clock operation correction line SDA IC real time clock interface data line SCL IC real time clock interface clock line Figure. MISC connector MISC pins SPK speaker ADJ potentiometer REL relay control pin REL relay control pin LED diodes pins LD0... diodes Switches pins SW0... micro-switches Figure.Diodes and switches..lcd display connector LCD ADJC ADJ CONT potentiometer pin CONT contrast line LCD R/S control line LCD data/order E strobe line LCD D,D,D,D LCD data lines Figure. LCD connector

10 ..Relay connector NO normally open NC normally closed CON common Figure. Relay connector... Programmer`s connector Figure. ISP programmer`s connector ground voltage supply PB data input line MISO PB programmator`s clock line SCK reset LED line connected with diode LED. During proggraming the diode is lighting. PB programator`s output data line MOSI.. JTAG connector PC TDI line (Test Data In) PC TDO line (Test Data Out) PC TMS line (Test Mode Select) PC TCK line (Test Clock) RST Reset line voltage supply ground

11 .. Jumpers, supply LED and reset. Jumper name Jumper SUPPLY Function shorted regulated voltage is provided from local power circuitry, open voltage comes from the external power supply. Jumper V jumper shorted power is.v, open V. Jumper Jumpers XT i XT when is closed, allowed to causes hardware reset allow to choose the source of the processor`s clock signal. When it is quartz-controlled, both jumpers should be disconnected. Shorted allowes for the external clock to the processor.. Jumper Load shorted causes loading an accumulator V. Jumper S Jumper S shorted causes that all board is supplied from accumulator V (except processor). when is closed, the processor is supplied from accumulator. ISP LED POWER led is lighting during the prorammator work. power LED indicator. pressing this button causes hardware reset.. Demo programs. LCD.c demo of LCD display, there is a moving sign on the display saying "EVBavr0" TERMOMETR.c temperature measurement in [C], the result is displayed on LCD RTC.c demo of real time clock, the program displays the current date in the form: hour : min : day : month : year. The update of the clock settings using the keyboard. Microcontroller's port lines should be connected with the appropriate lines SDL and SCL in circuit DS led to pin connectors. LED.c demo of LEDs, four functions chosen from the keyboard, each one causes a different light effect on the diodes. SEGLED.c demo of -segment LED displays

12 . Available versions. The set EVBavr0 is sold in three versions: Basic, Standard and Advance. Custom orders are also available. The set System EVBavr0 Basic includes: EVBavr0 board, which includes: processor, all connectors, four -segment LEDs, diodes, switches, transmitter, two relays, buzzer. Cables to connect peripheral devices CD-ROM with manuals and software The set System EVBavr0 Standard includes: EVBavr0 board, which includes: processor, all connectors, four -segment LEDs,diodes, switches, transmitter, two relays, buzzer, potentiometer, DS thermometer, RTC with.v accumulator. Cables to connect peripheral devices CD-ROM with manuals and software The set System EVBavr0 Advance includes: EVBavr0 board, which includes: processor, all connectors, four -segment LEDs,diodes, switches, transmitter, two relays, buzzer, potentiometer, DS thermometer, RTC with.v accumulator, LCD x. Cables to connect peripheral devices CD-ROM with manuals and software

13 . Schematic XTAL XTAL 0 OCB ALE 0 ICP VCC 0 PC0/A PC/A PC/A PC/A PC/A PC/A PC/A PC/A PD0/RXD PD/TXD PD/INT0 PD/INT PD PD/OCA PD/WR PD/RD PB0/T0 PB/T PB/AIN0 PB/AIN PB/SS PB/MOSI PB/MISO PB/SCK PA0/AD0 PA/AD PA/AD PA/AD PA/AD PA/AD PA/AD PA/AD U AT0S/// PC PC0 PC PC PC PC PC PC Vproc PB PB0 PB PB PB XTAL PA PA0 PA PA PA PA PA PA PD0 PD PD PD PD PD PB PB PB PE PE0 PE PD PD ADJ OUT IN REG LM R 00 + C 0u + C 0u/V C 0n SWH_ SUPPLY SW SW SPST JP_S VCC_IN D_Power POWER R k C 0n B BRIDGE + C 0n + C 0n + C 0n + C 0n + C 0n C+ V+ C- C+ C- V- Tout Rin Rout Tin Tin Rout Rin Tout VCC U ST JP RS C TxD RxD JP RS RxD TxD PB0 PB PB PB PB PB PB PB PA Vproc PA PA PA0 PA PA PA PE PA PC PC PE PC PE0 PC PD0 PD PD PD PD PD XTAL PC0 PC PC PC JP PROC PD PD XTAL Vss Vbat OSCO OSCI Vcc FT/OUT SCL SDA U DS X.kHz R.k R.k R.k BT AKUV FT SCL SDA C 0n JP RTC VBAT SDA FT SCL XTAL REL_ REL_ REL_ JP REL Vproc LED_SEG D LED LED_SEG D LED LED_SEG D LED LED_SEG D LED0 Q BC Q BC Q BC Q BC R k R k R k R k A0 A A A SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ R0 00 D SM D SM JP X.kHz PD PD D D D D D D D D0 E R/W R/S KONTR Vcc JP LCD X (optional) R k Q BC R k JP LCD R k C 0n C p C p C 0n R k JP JP X MHz JP XTAL XTAL A0 A A A SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ SEG_ R 0 R 0 R0 0 R 0 R 0 R 0 R 0 R 0 JP SEG D LD0 D LD R k R0 k D LD R k D LD R k L0 L L L D LD D LD R k R k D LD R k D LD R k L L L L ADJ SPK REL REL R k REL REL_ REL_ REL_ Q BC RL RELAY D R k REL REL_ REL_ REL_ Q BC RL RELAY D REL_ REL_ REL_ JP REL L0 L L L JP LED L L L L SW SW SW SW0 JP SW SW SW SW SW R SWH_ V R POTV R JP MISC VBAT JP ISP PB PB PB R0 0 D ISP R 0 R 0 R0 0 R 0 SW SW SW0 R k R k R k SW R k SW0 SW SW SW SW R k SW SW R k SW SW R k SW SW R k SW R 0 R 0 R 0 R 0 R 0 R 0 R 0 R 0 LEDS R k SPK Q BC SPK R k SPEAKER C 0n R k SWH_ JRST R 0 R k R k R ADJ ADJ RELAY C 0n of support@propox.com Size: File: Rev: Date: Title: EVBAVR-0-XXX (AVR Evaluation Borard) Error : LogoFINAL_many.bmp file not found. CONNECTORS OSCILATOR ADJ RTC POWER LED REG LM -SEGMENT LED SWITCH RS LCD EXTERNAL CLOCK Backup JTAG PC PC PC PC