Program-Samples.rar_C#上位机_atmega16 1602_多功能

/* Title: LCD-16sm.c Connection: Factory fixed setting: PORTA: PA0-PA2 LCD control PA3-PA7 4x7-segment display control Drive LED group2 (the right group of LED) PORTB: Shared by LCD and 4x7-segment displays output 8-bit data to LCD or 8-bit data to 4x7-segment displays PORTC: shared by 8-bit dipswitch and 4 x touch switches + 4 buttons receive inputs from dipswitch, touch switches and buttons PORTD: Drive LED group1 (the left group of LED) Attention: 1. J12 should be capped (connectted) 2. J5 is the Jump for LCD back light power Operation: LCD panel display messages Four messages can be displayed which message displayed is controlled by SW4 and SW5 LED group1 display status of SW4 and SW5 */ #include <iom16v.h> #include <macros.h> #include <stdlib.h> unsigned char lcd_enable = 0b00000001, lcd_disable = 0b11111110; unsigned char in_instr_wr = 0b00000000, in_data_wr = 0b00000100; unsigned char in_instr_rd = 0b00000010, in_data_rd = 0b00000110; void wr_instruction(unsigned char instr); void wr_data(unsigned char data); int indexhead=0, indextail=0, indexcount; int cursor_index=0; const char message1[]= {" Hello World!"}; const char message2[]= {"www.inovacs.com"}; const char message3[]= {" Happy New Year"}; const char message4[]= {" 2008 is coming"}; const char message5[]= {" Greeting From"}; const char message6[]= {"www.inovacs.com"}; const char message7[]= {"Contact Inova"}; const char message8[]= {"Tel:0592 5563570"}; void cursor_home(void); void cursor_line1(void); void cursor_line2(void); int ifr_decode(void); unsigned char swin, swin2; //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // Initilization file void port_init(void) { DDRA = 0xff; //PA0-PA2 for LCD control DDRB = 0xff; //PB0-PB7 for LCD data DDRD = 0xff; //Control LEDs on left group DDRC = 0x00; //Receive from dip-switch and button PORTC=0xff; } void WDT_off(void) { WDR(); WDTCR=0b00010111; WDTCR=0b00000111; } void delay(int count) { int a,b; b=2*count; for(a=0; a<b; a++) ; } void ldelay(int ms) { int i; for(i=0; i<=ms; i++) delay(0x2000); //2000-->4000 } // ************************************************************ // LCD functions follows //PORTB to LCD data port //PORTA to LCD control port //PA0--> R/S //PA1--> R/W //PA2--> E void wr_instruction(unsigned char instr) { DDRA=0xff; delay(1); PORTA=0b00000000; PORTB=instr; //send out instruction delay(2); PORTA=0b00000100; //PA2<--1 LCD-E ON (enable) delay(2); PORTA=0b00000000; //PA2<--0 LCD-E OFF (disable) delay(1); } void wr_data(unsigned char data) { DDRA=0xff; PORTA=0b00000001; //PA0 <-- 1, Select data register PORTB=data; //Send out data delay(1); PORTA=0b00000101; //Enable write to Data register delay(2); PORTA=0b00000000; //disable ???? delay(1); } // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // Following functions for LCD panel control void wr_instruction2(unsigned char instr) { unsigned char flags; delay(10); wr_instruction(instr); delay(10); } void wr_data2(unsigned char data) { unsigned char flags; if(cursor_index==0x10) cursor_line2(); else if(cursor_index==0x50) cursor_line1(); wr_data(data); cursor_index++; delay(50); } void cursor_home(void) //Move cursor to Home { wr_instruction2(0x01); delay(10); wr_instruction2(0x80); ldelay(5); cursor_index=0; } void cursor_line1(void) //Move cursor to the first line { wr_instruction2(0x80); cursor_index=0; ldelay(5); } void cursor_line2(void) //Move cursor to the second line { wr_instruction2(0b11000000); cursor_index=0x40; ldelay(2); } void space(void) //Write space, ' ', on the panel { wr_data2(' '); } void out_string(const char array[]) //Send a string stored in array to LCD panel { int i=0; unsigned char onechar; i=0; while(array[i]) { onechar=array[i++]; wr_data2(onechar); } } void lcd_on(void) { unsigned char i, ctrl_data; ldelay(20); PORTD=0x01; ldelay(40); wr_instruction(0b00110000); //Function Set:set 8-bit, 2line, 5x7 fonts ldelay(2); wr_instruction(0b00110000); // ldelay(2); wr_instruction(0b00110000); // delay(80); wr_instruction(0b00111100); //8-bit, 2 lines, 5x7 font delay(20); wr_instruction(0b00001110); //display on, cursor on, blink off delay(20); wr_instruction(0b00001110); //display on, delay(20); wr_instruction(0b00000001); //clear display ldelay(5); wr_instruction(0b00000110); //Entry mode delay(10); wr_instruction(0b00000001); //clear display delay(20); } //*********************************************************** // ********************************************************** // Main program void main(void) { unsigned char data, pfin, dark, darkfg=0xff; int i=0; unsigned char j, jsave, array1[10]; int a; CLI(); port_init(); WDT_off(); ldelay(200); lcd_on(); PORTD=0x50; ldelay(50); PORTD=0x05; ldelay(50); out_string(message1); cursor_line2(); out_string(message2); PORTD=0x55; PORTA=0xF8; PORTB=0x00; ldelay(100); while(1) { WDR(); swin=PINC&0x30; swin=(swin>>4)&0x03; if(swin2!=swin) { PORTD=swin; swin2=swin; if(swin==0x00) { cursor_home(); out_string(message1); cursor_line2(); out_string(message2); } else if(swin==0x01) { cursor_home(); out_string(message3); cursor_line2(); out_string(message4); } else if(swin==0x02) { cursor_home(); out_string(message5); cursor_line2(); out_string(message6); } else { cursor_home(); out_string(message7); cursor_line2(); out_string(message8); } } ldelay(10); } }