際際滷

際際滷Share a Scribd company logo

Avr Development board

Pradheep Shrinivasan
Pradheep Shrinivasan

This is the AVR development board that i created to be used for all the development work in my 3rd year and final year of the project

1 of 1
Download to read offline
1 2 3 4 5 6 7 8 9 10 1 2 I2C 1 2 3 4 5 6 7 8 9 DB9 Gnd OutIn U2 7805 C1 0.33uf C2 0.1uf D1 1N4007 D2 1N4007 D3 1N4007 voltage select POWER SUPPY R20UT 9 T2IN 10 T1IN 11 R1OUT 12 R2IN 13 T1OUT 14 GND 15 C1+ 1 max232 V+ 2 C1- 3 C2+ 4 C2- 5 V- 6 T2OUT 7 R2IN 8 VCC 16 U3 MAX232 C31 1uf 1uf C35 1uf vcc Gnd C34 1uf C33 1uf Gnd Gnd D1 LED Gnd SERIAL COMMUNICATION 470 12 34 56 78 910 ISP Gnd VCC MOSI MISO SCK Rst PB0(T0) 1 PB1(T1) 2 PB2(INT2/AIN0) 3 PB3(0C0/AIN1) 4 PB4(/SS) 5 PB5(MOSI) 6 PB6(MISO) 7 PB7(SCK) 8 /RST 9 Vcc 10 Gnd 11 XTAL2 12 XTAL1 13 PD0(RXD) 14 PD1(TXD) 15 PD2(INT0) 16 PD3(INT1) 17 PD4(OC1B) 18 PD5(OC1A) 19 PD6(ICP1) 20 PD7(OC2) 21 PC0(SCL) 22 PC1(SDA) 23 PC2(TCK) 24 PC3(TMS) 25 PC4(TD0) 26 PC5(TDI) 27 PC6(TOSC1) 28 PC7(TOSC2) 29 AVcc 30Gnd 31 ARef 32 PA0(ADC0) 40 PA1(ADC1) 39 PA2(ADC2) 38 PA3(ADC3) 37 PA4(ADC4) 36 PA5(ADC5) 35 PA6(ADC6) 34 PA7(ADC7) 33 AVR ATmega32 ATmege 32 Gnd Gnd VCC VCC 470 470 470 470 VCC VCC Gnd PORTA HEADER 1 2 3 4 5 6 7 8 9 10 PORTC HEADER 1 10K VCC Gnd 1 2 3 4 5 6 7 8 9 10 VCC Gnd 1 10K SS MOSI MISO SCK SPI HEADER VCC ISP CONNECTIONS 1 2 3 4 5 6 7 8 9 10 JTAG SCL SDA TCK TMS TDO TDI 47k VCC Gnd Rst RXD TXD TXD JTAG CONNECTIONS RXD CONTROLLER CONNECTIONS S4 S6 S2 S5 S3S1 TCK TDO TMS TDI Rst Gnd Gnd VCC HEADER HEADER SCL SDA I2C CONNECTIONS MATRIX KEYBOARD COL1 COL2 COL3 ROW1 ROW2 COL1 COL2 COL3 ROW1 ROW2 5v 3.3v VCC 3.3V GndVcc U? DC PIN 7V( MIN) THE MATRIX KEYBOARD IS LIKE ANY SUCH CONVENTIONAL KEYBOARDS USE ROW OR COLUMN KEY SCANNING FOR DETAILS REFER THE SITE http://www.dribin.org/dave/keyboard/html/ NOTE :-EXTERNAL PULLUPS PROVIDED ALMOST ALL AVR CONTROLLER(DIP-40) HAS THE SAME PINOUTS HENCE CAN BE USED AS GENERAL DEVELOPMENT BOARD. FOR JTAG MAKE SURE THE THE CONTROLLER SUPPORTS IT JTAG FUSE BIT ARE SET FOR ISP DETAILS VISIT FOR I2C AND KEYBOARD FOR SERAIL COMMUNICATION IT IS ADVICED TO USE MAX3232A PROBLEM IN SERIAL COMMUNICATION CHECK XTAL FUSE BIT SETTINGS OF CONTROLLER THE CABLE AND IC BY ECHOING DATA XTAL FREQUENCY DECLARED IN SOFTWARE VOLTAGE 5V AND 3.3V SUPPORTED decoupling 0.1uf Gnd http://www.vignesh.byethost4.com/isp.html 1 2 3 4 5 6 7 8 9 10 Title Author File Revision Document Date Sheets AVR DEV board Pradheep TCE(SMART HOME) E:SmartHomeschematicavrdevboard1.0.dsn 1.0 1 18/12/07 1 of 1

More Related Content

Avr Development board

  • 1. 1 2 3 4 5 6 7 8 9 10 1 2 I2C 1 2 3 4 5 6 7 8 9 DB9 Gnd OutIn U2 7805 C1 0.33uf C2 0.1uf D1 1N4007 D2 1N4007 D3 1N4007 voltage select POWER SUPPY R20UT 9 T2IN 10 T1IN 11 R1OUT 12 R2IN 13 T1OUT 14 GND 15 C1+ 1 max232 V+ 2 C1- 3 C2+ 4 C2- 5 V- 6 T2OUT 7 R2IN 8 VCC 16 U3 MAX232 C31 1uf 1uf C35 1uf vcc Gnd C34 1uf C33 1uf Gnd Gnd D1 LED Gnd SERIAL COMMUNICATION 470 12 34 56 78 910 ISP Gnd VCC MOSI MISO SCK Rst PB0(T0) 1 PB1(T1) 2 PB2(INT2/AIN0) 3 PB3(0C0/AIN1) 4 PB4(/SS) 5 PB5(MOSI) 6 PB6(MISO) 7 PB7(SCK) 8 /RST 9 Vcc 10 Gnd 11 XTAL2 12 XTAL1 13 PD0(RXD) 14 PD1(TXD) 15 PD2(INT0) 16 PD3(INT1) 17 PD4(OC1B) 18 PD5(OC1A) 19 PD6(ICP1) 20 PD7(OC2) 21 PC0(SCL) 22 PC1(SDA) 23 PC2(TCK) 24 PC3(TMS) 25 PC4(TD0) 26 PC5(TDI) 27 PC6(TOSC1) 28 PC7(TOSC2) 29 AVcc 30Gnd 31 ARef 32 PA0(ADC0) 40 PA1(ADC1) 39 PA2(ADC2) 38 PA3(ADC3) 37 PA4(ADC4) 36 PA5(ADC5) 35 PA6(ADC6) 34 PA7(ADC7) 33 AVR ATmega32 ATmege 32 Gnd Gnd VCC VCC 470 470 470 470 VCC VCC Gnd PORTA HEADER 1 2 3 4 5 6 7 8 9 10 PORTC HEADER 1 10K VCC Gnd 1 2 3 4 5 6 7 8 9 10 VCC Gnd 1 10K SS MOSI MISO SCK SPI HEADER VCC ISP CONNECTIONS 1 2 3 4 5 6 7 8 9 10 JTAG SCL SDA TCK TMS TDO TDI 47k VCC Gnd Rst RXD TXD TXD JTAG CONNECTIONS RXD CONTROLLER CONNECTIONS S4 S6 S2 S5 S3S1 TCK TDO TMS TDI Rst Gnd Gnd VCC HEADER HEADER SCL SDA I2C CONNECTIONS MATRIX KEYBOARD COL1 COL2 COL3 ROW1 ROW2 COL1 COL2 COL3 ROW1 ROW2 5v 3.3v VCC 3.3V GndVcc U? DC PIN 7V( MIN) THE MATRIX KEYBOARD IS LIKE ANY SUCH CONVENTIONAL KEYBOARDS USE ROW OR COLUMN KEY SCANNING FOR DETAILS REFER THE SITE http://www.dribin.org/dave/keyboard/html/ NOTE :-EXTERNAL PULLUPS PROVIDED ALMOST ALL AVR CONTROLLER(DIP-40) HAS THE SAME PINOUTS HENCE CAN BE USED AS GENERAL DEVELOPMENT BOARD. FOR JTAG MAKE SURE THE THE CONTROLLER SUPPORTS IT JTAG FUSE BIT ARE SET FOR ISP DETAILS VISIT FOR I2C AND KEYBOARD FOR SERAIL COMMUNICATION IT IS ADVICED TO USE MAX3232A PROBLEM IN SERIAL COMMUNICATION CHECK XTAL FUSE BIT SETTINGS OF CONTROLLER THE CABLE AND IC BY ECHOING DATA XTAL FREQUENCY DECLARED IN SOFTWARE VOLTAGE 5V AND 3.3V SUPPORTED decoupling 0.1uf Gnd http://www.vignesh.byethost4.com/isp.html 1 2 3 4 5 6 7 8 9 10 Title Author File Revision Document Date Sheets AVR DEV board Pradheep TCE(SMART HOME) E:SmartHomeschematicavrdevboard1.0.dsn 1.0 1 18/12/07 1 of 1