HG.rar_ MAX6675_max6675

#include <reg52.h> #include <intrins.h> #define uchar unsigned char #define uint unsigned int /* 12864端口定义*/ #define LCD_data P0 //带字库液晶12864数据口 sbit LCD_RS = P2^3; //寄存器选择输入 sbit LCD_RW = P2^4; //液晶读/写控制 sbit LCD_EN = P2^1; //液晶使能控制 sbit PSB=P2^0; //并口控制 sbit RES=P2^2; //*****************DEFINITION***********************// //**************LCD COMMAND DEFINITION**************// // ---/---/---/RES/R/W/E /PSB/RS //RES:L //R/W:H/L //RS :H COM L DATA //E :L //PSB:H // PA7/PA6/PA5/PA4/PA3/PA2/PA1/PA0 //DATA:PORTB #define LCD_READ_COMMAND_ENABLE 0X1A //00011010 #define LCD_READ_DATA_ENABLE 0X1B //00011011 #define LCD_WRITE_COMMAND_ENABLE 0X12 //00010010 #define LCD_WRITE_DATA_ENABLE 0X13 //00010011 #define LCD_READ_COMMAND_DISABLE 0X1E //00011110 #define LCD_READ_DATA_DISABLE 0X1F //00011111 #define LCD_WRITE_COMMAND_DISABLE 0X16 //00010110 #define LCD_WRITE_DATA_DISABLE 0X17 //00010111 //******************DELAY PROGRAM******************// void delay_ms(unsigned char ms) { int i,j; for(i=0;i<1000;i++) for(j=0;j<ms;j++){ } } void delay_us(unsigned char us) { int i,j; for(i=0;i<5;i++) for(j=0;j<us;j++){ } } //*****************LCD 12864**********************// //*****************READ BUSY***********************// char IF_LCD_BUSY(void) { char READ_LCD_BUSY_SIGNAL; RES=0; LCD_RW=1; LCD_RS = 0; LCD_RW = 1; LCD_EN = 1; delay_ms(5); READ_LCD_BUSY_SIGNAL = (P0&0x80); LCD_EN = 0; return READ_LCD_BUSY_SIGNAL; } //*****************WRITE COMMAND TO LCD************// void LCD_WRITE_Command(unsigned char command) { while(IF_LCD_BUSY()); DDRA=0XFF; PORTA=LCD_WRITE_COMMAND_ENABLE; delay_us(2); PORTA=LCD_WRITE_COMMAND_DISABLE; DDRB=0XFF; PORTB=command; delay_us(2); PORTA=LCD_WRITE_COMMAND_ENABLE; } //*****************WRITE DATA TO LCD***************// void LCD_WRITE_BYTE(unsigned char data) { while(IF_LCD_BUSY()); DDRA=0XFF; PORTA=LCD_WRITE_DATA_ENABLE; delay_us(2); PORTA=LCD_WRITE_DATA_DISABLE; DDRB=0XFF; PORTB=data; delay_us(2); PORTA=LCD_WRITE_DATA_ENABLE; } //*****************LCD INITIAL*********************// void LCD_Init(void) { DDRB=0XFF; DDRA=0XFF; LCD_WRITE_Command(0X38); LCD_WRITE_Command(0X38); LCD_WRITE_Command(0X38); LCD_WRITE_Command(0X38); LCD_WRITE_Command(0X08); LCD_WRITE_Command(0X01); //CLEAR LCD LCD_WRITE_Command(0X06); //AC++ LCD_WRITE_Command(0X0C); } //*****************DISPLAY ONE CHAR***************// void DisplayOneChar(unsigned char x_direction,unsigned char y_direction,unsigned char one_char) { unsigned char initial_direction; switch(y_direction) { case 0:initial_direction=0X80; break; case 1:initial_direction=0X90; break; case 2:initial_direction=0X88; break; case 3:initial_direction=0X98; break; default:initial_direction=0X80; break; } initial_direction=initial_direction+x_direction; LCD_WRITE_Command(initial_direction); LCD_WRITE_BYTE(one_char); } //*****************TRAN TO ASCII******************// void ASCII_TRAN(unsigned char *asc) { while((*asc)!=0) { LCD_WRITE_BYTE(*asc); asc++; } } //***************DISPLAY STRING********************// void DisplayString(unsigned char x_direction,unsigned char y_direction,unsigned char str[]) { unsigned char initial_direction; switch(y_direction) { case 0:initial_direction=0X80; break; case 1:initial_direction=0X90; break; case 2:initial_direction=0X88; break; case 3:initial_direction=0X98; break; default:initial_direction=0X80; break; } initial_direction=initial_direction+x_direction; LCD_WRITE_Command(initial_direction); ASCII_TRAN(str); delay_ms(10); } //*****************LCD PROGRAM END*****************// void main(void) { LCD_Init(); while(1) { DisplayString(1,0,"中国计量学院"); DisplayString(2,1,"质安学院"); } }