Horizontal scrolling in 16 x2 lcd with a tmega16
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Horizontal scrolling in 16 x2 lcd with a tmega16

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    Horizontal scrolling in 16 x2 lcd with a tmega16 Horizontal scrolling in 16 x2 lcd with a tmega16 Document Transcript

    • ABLab Solutions Horizontal scrolling in 16X2 LCD with ATmega16 1
    • ABLab Solutions Sneha Palace, Plot No.60,Laxmi Vihar, Near Appolo Hospital, Bhubaneswar-751005 Website: www.ablab.in | E-mail: info@ablab.in | Ph: 91-674-6573832 Table of Contents Project Description .................................................................................................... 3 Hardwares Required .................................................................................................. 3 Softwares Required ................................................................................................... 3 C Program.................................................................................................................. 3 Connection Guide ...................................................................................................... 6 Update Yourself......................................................................................................... 6 2
    • ABLab Solutions Sneha Palace, Plot No.60,Laxmi Vihar, Near Appolo Hospital, Bhubaneswar-751005 Website: www.ablab.in | E-mail: info@ablab.in | Ph: 91-674-6573832 Project Description In this project, we will interface 16X2 alphanumeric LCD with ATmega16 microcontroller and we will display “ABLab Solutions Bhubaneswar-751005” in 1st row and “www.ablab.in info@ablab.in” in 2nd row of 16X2 alphanumeric LCD. Then, we will scroll the displayed characters from right to left. Hardwares Required  AVR Trainer Board-100-1pcs  AVR USB Programmer-1pcs  12V DC Adapter-1pcs  16X2 Alphanumeric LCD(JHD162A)-1pcs  1 to 1 Connector-3pcs  10 to 10 FRC Female Connector-2pcs  USB AM-AF Cable(Optional)-1pcs Softwares Required  AVR Studio 4  WinAVR -2010  SinaProg Hex Downloader  USBasp Driver C Program //**************************************************************// //Microcontroller :ATmega16 //System Clock :1MHz //Project :Horizontal scrolling in 16X2 LCD with ATmega16 //AVR Compiler :AVR-GCC 4.3.2 //Author :ABLab Solutions // :www.ablab.in // :info@ablab.in //Date :1st January 2012 //**************************************************************// 3
    • ABLab Solutions Sneha Palace, Plot No.60,Laxmi Vihar, Near Appolo Hospital, Bhubaneswar-751005 Website: www.ablab.in | E-mail: info@ablab.in | Ph: 91-674-6573832 #include<avr/io.h> /*Includes io.h header file where all the Input/Output Registers and its Bits are defined for AVR microcontroller*/ #define F_CPU 1000000 /*Defines a macro for the delay.h header file. F_CPU is the microcontroller frequency value for the delay.h header file. Default value of F_CPU in delay.h header file is 1000000(1MHz)*/ #include<util/delay.h> /*Includes delay.h header file which defines two functions, _delay_ms (millisecond delay) and _delay_us (microsecond delay)*/ #define LCD_DATA_PORT PORTB /*Defines a macro for the lcd.h header File. LCD_DATA_PORT is the microcontroller PORT Register to which the data pins of the LCD are connected*/ #define LCD_CONT_PORT PORTD /*Defines a macro for the lcd.h header File. LCD_CONT_PORT is the microcontroller PIN Register to which the control pins of the LCD are connected*/ #define LCD_RS PD0 /*Defines a macro for the lcd.h header file. LCD_RS is the microcontroller Port pin to which the RS pin of the LCD is connected*/ #define LCD_RW PD1 /*Defines a macro for the lcd.h header file. LCD_RW is the microcontroller Port pin to which the RW pin of the LCD is connected*/ #define LCD_EN PD2 /*Defines a macro for the lcd.h header file. LCD_EN is the microcontroller Port pin to which the EN pin of the LCD is connected*/ #include<avr/lcd.h> /*Includes lcd.h header file which defines all the functions for all Alphanumeric LCD*/ 4
    • ABLab Solutions Sneha Palace, Plot No.60,Laxmi Vihar, Near Appolo Hospital, Bhubaneswar-751005 Website: www.ablab.in | E-mail: info@ablab.in | Ph: 91-674-6573832 void main(void) { DDRB=0xff; /*All pins of PortB are declared output (data pins of LCD are connected)*/ DDRD=0x07; /*PD0, PD1 and PD2 pins of PortD are declared output (control pins of LCD connected)*/ unsigned char first_row_lcd_display[]="ABLab Solutions Bhubaneswar-751005", second_row_lcd_display[]="www.ablab.in info@ablab.in"; /*Variable declarations*/ lcd_init(); /*LCD initialization*/ lcd_string_write(first_row_lcd_display); /*String display in LCD*/ lcd_command_write(0xc0); /*Cursor moves to 2nd row 1st column of LCD*/ lcd_string_write(second_row_lcd_display); /*String display in LCD*/ /*Start of infinite loop*/ while(1) { _delay_ms(500); /*500ms delay*/ lcd_command_write(0x18); /*Left shift of displayed characters in LCD*/ } } /*End of Program*/ 5
    • ABLab Solutions Sneha Palace, Plot No.60,Laxmi Vihar, Near Appolo Hospital, Bhubaneswar-751005 Website: www.ablab.in | E-mail: info@ablab.in | Ph: 91-674-6573832 Connection Guide The step-by-step procedure for Horizontal scrolling in 16X2 LCD interfacing with ATmega16 are as follows:  Insert the DC Pin of 12V DC Adapter to the DC Socket of AVR Trainer Board-100.  Connect PORTB header with LCD data header of AVR Trainer Board-100 with a 10 to 10 FRC Female Connector.  Connect RS, RW & EN pin of LCD control header with PD0, PD1 & PD2 pin of PORTD header respectively of AVR Trainer Board-100 with 1 to 1 Connectors.  Connect the ISP Header of AVR Trainer Board-100 with AVR USB Programmer Header with a 10 to 10 FRC Female Connector.  Connect the 16X2 Alphanumeric LCD to the LCD Header of AVR Trainer Board- 100.  Connect the AVR USB Programmer to the PC/Laptop’s USB Port.  Switch on the power with the help of Power Switch of AVR Trainer Board-100.  Download the Horizontal scrolling in 16X2 LCD interfacing with ATmega16 Hex file to AVR Trainer Board-100.  See the output. Update Yourself For more Softwares, Tutorials, Sample Codes, Installation Guides, User Guides, User Manuals, Videos, Products & Components and Updates, Please Visit us at: www.ablab.in Mail us at: Info@ablab.in View us at: www.youtube.com/ablabsolutions Like us at: www.facebook.com/ablab.in Join us at: www.facebook.com/groups/ablabsolutions 6