安徽财贸职业学院
LCD_write_char : 显示英文字符 输入参数:c :显示的字符; 编写日期 :2009-5-1 最后修改日期 :2009-5-1
-----------------------------------------------------------------------*/ 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); }
/*----------------------------------------------------------------------- LCD_write_english_String : 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,x 0-83 ,y 0-5 编写日期 :2009-5-1 最后修改日期 :2009-5-1
-----------------------------------------------------------------------*/
void LCD_write_english_string(unsigned char X,unsigned char Y,char *s) {
LCD_set_XY(X,Y); while (*s) { }
/*----------------------------------------------------------------------- LCD_write_chinese_string: 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
-9-
LCD_write_char(*s); s++;
}
安徽财贸职业学院
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 :2009-5-1 最后修改日期 :2009-5-1 测试:
LCD_write_chi(0,0,12,7,0,0); LCD_write_chi(0,2,12,7,0,0); LCD_write_chi(0,4,12,7,0,0);
-----------------------------------------------------------------------*/ void LCD_write_chinese_string(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 for (n=0; n 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(write_chinese[line+i][n],1); } i++; LCD_set_XY((X+(ch_with+row)*i),Y); } -10- 安徽财贸职业学院 } /*----------------------------------------------------------------------- LCD_move_chinese_string: 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 :2009-5-1 最后修改日期 :2009-5-2 -----------------------------------------------------------------------*/ void chinese_string (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<130; i++) { buffer_h[83] = move_chinese_string[i/12][j]; buffer_l[83] = move_chinese_string[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); } -11- 安徽财贸职业学院 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 :2009-5-1 最后修改日期 :2009-5-2 -----------------------------------------------------------------------*/ void LCD_draw_bmp_pixel(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 LCD_set_XY(X,Y); for(i=0; i -12- 安徽财贸职业学院 { 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 :2009-5-1 最后修改日期 :2009-5-2 -----------------------------------------------------------------------*/ void LCD_write_byte(unsigned char dat, unsigned char command) { unsigned char i; //PORTB &= ~LCD_CE ; LCD_CE = 0; if (command == 0) // PORTB &= ~LCD_DC ; // 传送命令 LCD_DC = 0; else // PORTB |= LCD_DC ; LCD_DC = 1; for(i=0;i<8;i++) { if(dat&0x80) LCD_SDIN = 1; LCD_SDIN = 0; else LCD_SCLK = 0; dat = dat << 1; // 传送数据 // 使能LCD -13-