#include <iom8v.h> #include <macros.h> #include lcd.h #include 6x8.h #include chinese.h
/*----------------------------------------------------------------------- LCD_init : 3310LCD初始化
编写日期 :2004-8-10 最后修改日期 :2004-8-10 -----------------------------------------------------------------------*/ void LCD_init(void) { PORTB &= ~LCD_RST; // 产生一个让LCD复位的低电平脉冲 delay_1us(); PORTB |= LCD_RST;
PORTB &= ~LCD_CE ; // 关闭LCD delay_1us(); PORTB |= LCD_CE; // 使能LCD delay_1us();
LCD_write_byte(0x21, 0); // 使用扩展命令设置LCD模式 LCD_write_byte(0xc8, 0); // 设置偏置电压 LCD_write_byte(0x06, 0); // 温度校正 LCD_write_byte(0x13, 0); // 1:48 LCD_write_byte(0x20, 0); // 使用基本命令 LCD_clear(); // 清屏 LCD_write_byte(0x0c, 0); // 设定显示模式,正常显示
PORTB &= ~LCD_CE ; // 关闭LCD //LCD_clear(); }
/*----------------------------------------------------------------------- LCD_clear : LCD清屏函数
编写日期 :2004-8-10 最后修改日期 :2004-8-10 -----------------------------------------------------------------------*/ void LCD_clear(void) { unsigned int i;
LCD_write_byte(0x0c, 0); LCD_write_byte(0x80, 0);
for (i=0; i<504; i++) LCD_write_byte(0, 1); }
/*----------------------------------------------------------------------- LCD_set_XY : 设置LCD坐标函数
输入参数:X :0-83 Y :0-5
编写日期 :2004-8-10 最后修改日期 :2004-8-10 -----------------------------------------------------------------------*/ void LCD_set_XY(unsigned char X, unsigned char Y) { LCD_write_byte(0x40 | Y, 0); // column LCD_write_byte(0x80 | X, 0); // row }
/*----------------------------------------------------------------------- LCD_write_char : 显示英文字符
输入参数:c :显示的字符;
编写日期 :2004-8-10 最后修改日期 :2004-8-10 -----------------------------------------------------------------------*/ void LCD_write_char(unsigned char c) { unsigned char line;
//c -= 32;
//for (line=0; line<6; line++) //LCD_write_byte(font6x8[c][line], 1); for (line=0; line<7; line++) LCD_write_byte(font7x13[c][line], 1); for (line=7; line<14; line++) LCD_write_byte(font7x13[c][line], 1);
}
/*----------------------------------------------------------------------- LCD_write_char : 英文字符串显示函数
输入参数:*s :英文字符串指针; X、Y : 显示字符串的位置
编写日期 :2004-8-10 最后修改日期 :2004-8-10 -----------------------------------------------------------------------*/ void LCD_write_String(unsigned char X,unsigned char Y,char *s) { unsigned char line; unsigned char i=0; while (*s) { LCD_set_XY(X+i*7,Y); for (line=0; line<7; line++) LCD_write_byte(font7x13[*s-0X30][line], 1);
LCD_set_XY(X+i*7,Y+1); for (line=7; line<14; line++) LCD_write_byte(font7x13[*s-0X30][line], 1); s++; i++; } } /*----------------------------------------------------------------------- LCD_write_chi: 在LCD上显示汉字
输入参数:X、Y :显示汉字的起始X、Y坐标; ch_with :汉字点阵的宽度 num :显示汉字的个数; line :汉字点阵数组中的起始行数 row :汉字显示的行间距 编写日期 :2004-8-11 最后修改日期 :2004-8-12 -----------------------------------------------------------------------*/ void LCD_write_chi(unsigned char X, unsigned char Y, unsigned char ch_with,unsigned char num, unsigned char line,unsigned char row) { unsigned char i,n;
LCD_set_XY(X,Y); //设置初始位置
for (i=0;i<num;) { for (n=0; n<ch_with*2; n++) //写一个汉字 { if (n==ch_with) //写汉字的下半部分 { if (i==0) LCD_set_XY(X,Y+1); else LCD_set_XY((X+(ch_with+row)*i),Y+1); } LCD_write_byte(china_char[line+i][n],1); } i++; LCD_set_XY((X+(ch_with+row)*i),Y); } }
/*----------------------------------------------------------------------- LCD_write_chi: 汉字移动
输入参数:X、Y :显示汉字的起始X、Y坐标; T :移动速度;
编写日期 :2004-8-13 最后修改日期 :2004-8-13 -----------------------------------------------------------------------*/ void LCD_move_chi (unsigned char X, unsigned char Y, unsigned char T) { unsigned char i,n,j=0; unsigned char buffer_h[84]={0}; unsigned char buffer_l[84]={0};
for (i=0; i<156; i++) { buffer_h[83] = china_char[i/12][j]; buffer_l[83] = china_char[i/12][j+12]; j++; if (j==12) j=0;
for (n=0; n<83; n++) { buffer_h[n]=buffer_h[n+1]; buffer_l[n]=buffer_l[n+1]; }
LCD_set_XY(X,Y); for (n=0; n<83; n++) { LCD_write_byte(buffer_h[n],1); }
LCD_set_XY(X,Y+1); for (n=0; n<83; n++) { LCD_write_byte(buffer_l[n],1); }
delay_nms(T); } }
/*----------------------------------------------------------------------- LCD_draw_map : 位图绘制函数
输入参数:X、Y :位图绘制的起始X、Y坐标; *map :位图点阵数据; Pix_x :位图像素(长) Pix_y :位图像素(宽)
编写日期 :2004-8-13 最后修改日期 :2004-8-13 -----------------------------------------------------------------------*/ void LCD_draw_map(unsigned char X,unsigned char Y,unsigned char *map, unsigned char Pix_x,unsigned char Pix_y) { unsigned int i,n; unsigned char row;
if (Pix_y%8==0) row=Pix_y/8; //计算位图所占行数 else row=Pix_y/8+1;
for (n=0;n<row;n++) { LCD_set_XY(X,Y); for(i=0; i<Pix_x; i++) { LCD_write_byte(map[i+n*Pix_x], 1); } Y++; //换行 } }
/*----------------------------------------------------------------------- LCD_write_byte : 使用SPI接口写数据到LCD
输入参数:data :写入的数据; command :写数据/命令选择;
编写日期 :2004-8-10 最后修改日期 :2004-8-13 -----------------------------------------------------------------------*/ void LCD_write_byte(unsigned char data, unsigned char command) { PORTB &= ~LCD_CE ; // 使能LCD
if (command == 0) PORTB &= ~LCD_DC ; // 传送命令 else PORTB |= LCD_DC ; // 传送数据
SPDR = data; // 传送数据到SPI寄存器
while ((SPSR & 0x80) == 0); // 等待数据传送完毕
PORTB |= LCD_CE ; // 关闭LCD
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