AVR单片机经典仿真实例

/* KS0108 128*64 LCD C语言驱动 LCD引脚定义 1---GND 2---VCC 3---VLCD 4---D/I 5---R/W 6---E 7到14 D0-D7 15--CS1 16--CS2 17--RESET 18--VEE 19--SW 20--NC */ #include <iom16.h> //#include <macros.h> #include "delay.h" unsigned char CurOffset,CurRow,CurPage,CurCol; #define uchar unsigned char /* 常量定义 */ #define LCD_STATUS_BUSY 0x80 #define START_LINE0 0xc0 #define DISPLAY_ON 0x3f #define DISPLAY_OFF 0x3e #define PARA1 0x40 #define BIT(x) (1<<x) //PORTA---数据口 PORTB----控制口 volatile unsigned char *LCD_DIR_PORT = &DDRA; volatile unsigned char *LCD_IP_PORT = &PINA; volatile unsigned char *LCD_OP_PORT = &PORTA; volatile unsigned char *LCD_EN_PORT = &PORTB; volatile unsigned char *LCD_CS2_PORT = &PORTB; volatile unsigned char *LCD_CS1_PORT = &PORTB; volatile unsigned char *LCD_RW_PORT = &PORTB; volatile unsigned char *LCD_DI_PORT = &PORTB; char LCD_EN_BIT = BIT(4); char LCD_CS2_BIT = BIT(3); char LCD_CS1_BIT = BIT(2); char LCD_RW_BIT = BIT(1); char LCD_DI_BIT = BIT(0); #define SET_LCD_E *LCD_EN_PORT |= LCD_EN_BIT //LCD使能 #define CLEAR_LCD_E *LCD_EN_PORT &= ~LCD_EN_BIT //LCD禁止 #define SET_LCD_DATA *LCD_DI_PORT |= LCD_DI_BIT //选择指令端口 #define SET_LCD_CMD *LCD_DI_PORT &= ~LCD_DI_BIT //选择数据端口 #define SET_LCD_READ *LCD_RW_PORT |= LCD_RW_BIT //读模式 #define SET_LCD_WRITE *LCD_RW_PORT &= ~LCD_RW_BIT //写模式 #define SET_LCD_CS2 *LCD_CS2_PORT |= LCD_CS2_BIT //左屏选择禁止 #define CLEAR_LCD_CS2 *LCD_CS2_PORT &= ~LCD_CS2_BIT //左屏选择使能 #define SET_LCD_CS1 *LCD_CS1_PORT |= LCD_CS1_BIT //左屏选择禁止 #define CLEAR_LCD_CS1 *LCD_CS1_PORT &= ~LCD_CS1_BIT //左屏选择使能 #define LEFT 0 #define RIGHT 1 #define CMD 0 #define DATA 1 void LCD_BUSY(unsigned char lr) //判断忙标志 { unsigned char status; asm("cli"); if(lr==LEFT) { CLEAR_LCD_CS2; //cs2=0 SET_LCD_CS1; //cs1=1 } else { SET_LCD_CS2; //cs2=1 CLEAR_LCD_CS1; //cs1=0 } SET_LCD_CMD; *LCD_DIR_PORT = 0x00; *LCD_OP_PORT = 0xff; SET_LCD_READ; SET_LCD_E; asm("nop"); asm("nop"); asm("nop"); asm("nop"); while((*LCD_IP_PORT) & LCD_STATUS_BUSY) { CLEAR_LCD_E; asm("nop"); asm("nop"); asm("nop"); asm("nop"); SET_LCD_E; asm("nop"); asm("nop"); asm("nop"); asm("nop"); } CLEAR_LCD_E; SET_LCD_WRITE; *LCD_OP_PORT = 0xff; asm("sei");//)asm("sei"); } void write_LCD(unsigned char lr,unsigned char cd,unsigned char data) /*写入指令或数据*/ { asm("cli");//)asm("cli"); LCD_BUSY(lr); if(cd==CMD) { SET_LCD_CMD; } else { SET_LCD_DATA; } SET_LCD_WRITE; SET_LCD_E; *LCD_DIR_PORT = 0xff; *LCD_OP_PORT = data; asm("nop"); asm("nop"); asm("nop"); asm("nop"); CLEAR_LCD_E; *LCD_OP_PORT = 0xff; asm("sei"); } unsigned char read_LCD(unsigned char lr) /* 读显示数据 */ { unsigned char data; asm("cli"); LCD_BUSY(lr); SET_LCD_DATA; *LCD_DIR_PORT = 0x00; *LCD_OP_PORT = 0xff; SET_LCD_READ; SET_LCD_E; asm("nop"); asm("nop"); asm("nop"); asm("nop"); data=*LCD_IP_PORT; CLEAR_LCD_E; SET_LCD_WRITE; LCD_BUSY(lr); SET_LCD_DATA; *LCD_DIR_PORT = 0x00; *LCD_OP_PORT = 0xff; SET_LCD_READ; SET_LCD_E; asm("nop"); asm("nop"); asm("nop"); asm("nop"); data=*LCD_IP_PORT; CLEAR_LCD_E; SET_LCD_WRITE; asm("sei"); return data; } void set_start_line_L(unsigned char line) /*设置显示起始行*/ //0-63 { write_LCD(LEFT,CMD,0xc0|line); } void set_start_line_R(unsigned char line) /*设置显示起始行*/ //0-63 { write_LCD(RIGHT,CMD,0xc0|line); } void set_page_L(unsigned char page) /*设置X地址 设置页*/ //0-7 { write_LCD(LEFT,CMD,0xb8|page); } void set_page_R(unsigned char page) /*设置X地址 设置页*/ //0-7 { write_LCD(RIGHT,CMD,0xb8|page); } void set_col_addr_L(unsigned char col) /*设置Y地址*/ //0-63 { write_LCD(LEFT,CMD,0x40|col); } void set_col_addr_R(unsigned char col) /*设置Y地址*/ //0-63 { write_LCD(RIGHT,CMD,0x40|col); } void init_lcd(void) /*初始化函数*/ { set_start_line_L(0); /*显示起始行为0*/ set_start_line_R(0); /*显示起始行为0*/ write_LCD(LEFT,CMD,DISPLAY_ON); /* 开显示 */ write_LCD(RIGHT,CMD,DISPLAY_ON); /* 开显示 */ } void clr_lcd(void) /*清屏函数*/ { unsigned char pages,i; for(pages=0;pages<8;pages++) { set_page_L(pages); /* X 页地址 */ set_page_R(pages); /* X 页地址 */ for(i=0;i<64;i++) { set_col_addr_L(i);//Y set_col_addr_R(i);//Y write_LCD(LEFT,DATA,0x0); write_LCD(RIGHT,DATA,0x0); } } } //ASCII 字模宽度及高度 #define ASC_CHR_WIDTH 8 #define ASC_CHR_HEIGHT 12 typedef struct typFNT_ASC16 /* 汉字字模显示数据结构 */ { char Index[1]; char Msk[16]; }; __flash struct typFNT_ASC16 ASC_16[] = { /* 显示为8*16 Curier 10 常规*/ "1",0x00,0x00,0x08,0x08,0xFC,0x00,0x00,0x00,0x00,0x00,0x04,0x04,0x07,0x04,0x04,0x00, "2",0x00,0x00,0x08,0x04,0x84,0x44,0x38,0x00,0x00,0x00,0x06,0x05,0x04,0x04,0x04,0x00, "3",0x00,0x00,0x08,0x04,0x44,0x44,0xB8,0x00,0x00,0x00,0x02,0x04,0x04,0x04,0x03,0x00, "4",0x00,0x00,0x80,0x60,0x18,0xFC,0x00,0x00,0x00,0x00,0x01,0x01,0x05,0x07,0x05,0x00, "5",0x00,0x00,0x7C,0x44,0x44,0x44,0x84,0x00,0x00,0x00,0x02,0x04,0x04,0x04,0x03,0x00, "6",0x00,0x00,0xF0,0x48,0x44,0x44,0x80,0x00,0x00,0x00,0x03,0x04,0x04,0x04,0x03,0x00, "7",0x00,0x00,0x0C,0x04,0x84,0x64,0x1C,0x00,0x00,0x00,0x00,0x06,0x01,0x00,0x00,0x00, "8",0x00,0x00,0xB8,0x44,0x44,0x44,0xB8,0x00,0x00,0x00,0x03,0x04,0x04,0x04,0x03,0x00, "9",0x00,0x00,0x38,0x44,0x44,0x44,0xF8,0x00,0x00,0x00,0x00,0x04,0x04,0x02,0x01,0x00, "0",0x00,0x00,0xF8,0x04,0x04,0x04,0xF8,0x00,0x00,0x00,0x03,0x04,0x04,0x04,0x03,0x00, ".",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00, ",",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x04,0x00,0x00,0x00, ":",0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x04,0x00,0x00,0x00, ";",0x00,0x00,0x00,0x00,0x20,0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x04,0x00,0x00,0x00, "-",0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, "_",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10, "A",0x00,0x00,0x80,0x64,0x1C,0x60,0x80,0x00,0x00,0x04,0x07,0x05,0x01,0x05,0x07,0x04, "B",0x00,0x04,0xFC,0x44,0x44,0x44,0x44,0xB8,0x00,0x04,0x07,0x04,0x04,0x04,0x04,0x03, "C",0x00,0xF0,0x08,0x04,0x04,0x04,0x04,0x08,0x00,0x01,0x02,0x04,0x04,0x04,0x04,0x02, "D",0x00,0x04,0xFC,0x04,0x04,0x04,0x08,0xF0,0x00,0x04,0x07,0x04,0x04,0x04,0x02,0x01, "E",0x00,0x04,0xFC,0x44,0x44,0xE4,0x04,0x0C,0x00,0x04,0x07,0x04,0x04,0x04,0x04,0x06, "F",0x00,0x04,0xFC,0x44,0x44,0xE4,0x04,0x0C,0x00,0x04,0x07,0x04,0x04,0x00,0x00,0x00, " ",0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, "=",0x00,0x00,0xA0,0xA0,0xA0,0xA0,0xA0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, "(",0x00,0x00,0x00,0xE0,0x18,0x04,0x00,0x00,0x00,0x00,0x00,0x03,0x0C,0x10,0x00,0x00, ")",0x00,0x00,0x00,0x04,0x18,0xE0,0x00,0x00,0x00,0x00,0x00,0x10,0x0C,0x03,0x00,0x00, "V",0x00,0x04,0x3C,0xC4,0x00,0xC4,0x3C,0x04,0x00,0x00,0x00,0x01,0x06,0x01,0x00,0x00, "m",0x00,0x20,0xE0,0x20,0xC0,0x20,0xC0,0x00,0x00,0x04,0x07,0x00,0x07,0x00,0x07,0x04, "H",0x00,0x04,0xFC,0x44,0x40,0x44,0xFC,0x04,0x00,0x04,0x07,0x04,0x00,0x04,0x07,0x04, "*",0x90,0x90,0