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TFT
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TFT-LCD显示中英文
在前面编写了屏幕显示ASCII字符和字符串后，本次实现屏幕显示中文字符和中文字符串 中文字符取模阴码，逐行式，逆向，十六进制数，C51格式，
输入要显示的中文字符，字体选择宋体，字宽x字高为16x16，也可以选择其他大一点的格式，字体大小不同，后续代码中要进行相应的修改
用一个头文件存放字模数据，因为中文数据不同于ASCII码，ASCII码字符是有规律的，在代码中减去首个字符就能得到想要的ASCII码字符，但中文没有，所以要解决的就是当参数传入要显示的中文字符指针时，该怎么去字模数组中找到对应中文字符的字模数据 方法：定义一个结构体类型，里面有两个数组，第一个数组是中文字符的索引，后续代码中就通过这个索引查找中文字符的位置，第二个数组就是对应中文字符的字模数据，这个数组的大小要根据中文字符的字模数据的个数来定，比如16x16大小的字符的字模数据有32个（一个一个数），所以该数组大小就为32，如果是24x24的大小，则该数组大小要为72 用该结构体类型定义一个数组，存放字符索引和字模数据，用const修饰，放到芯片的内部Flash区 /** * 16号中文字符集 * 宽x高：16x16 * 字体：宋体 * 逐行式(从第一行开始向右每取8个点作为一个字节，不足8个点就补0) * 逆向(取模顺序从低到高，即第一个点作为最低位) */ typedef struct { uint8_t ucIndex[2]; uint8_t ucCHN_Code[32]; //该数组要根据一个中文字符的字模数据有多少个，来定义大小 }FONT_CHN16_t; const FONT_CHN16_t ucCHN_CHN16[] = { {{"时"},{0x00,0x10,0x00,0x10,0x3E,0x10,0x22,0x10,0xA2,0x7F,0x22,0x10,0x22,0x10,0x3E,0x10,0x22,0x11,0x22,0x12,0x22,0x12,0x22,0x10,0x3E,0x10,0x22,0x10,0x00,0x14,0x00,0x08}},/*"时",0*/ {{"间"},{0x04,0x00,0xC8,0x3F,0x08,0x20,0x02,0x20,0xE2,0x23,0x22,0x22,0x22,0x22,0x22,0x22,0xE2,0x23,0x22,0x22,0x22,0x22,0x22,0x22,0xE2,0x23,0x02,0x20,0x02,0x28,0x02,0x10}},/*"间",1*/ {{"不"},{0x00,0x00,0xFE,0x3F,0x00,0x01,0x00,0x01,0x80,0x00,0x80,0x00,0xC0,0x02,0xA0,0x04,0x90,0x08,0x88,0x10,0x84,0x20,0x82,0x20,0x81,0x00,0x80,0x00,0x80,0x00,0x80,0x00}},/*"不",2*/ {{"在"},{0x40,0x00,0x40,0x00,0x20,0x00,0xFF,0x7F,0x10,0x00,0x10,0x02,0x08,0x02,0x0C,0x02,0xEA,0x3F,0x09,0x02,0x08,0x02,0x08,0x02,0x08,0x02,0x08,0x02,0xF8,0x7F,0x08,0x00}},/*"在",3*/ {{"于"},{0x00,0x00,0xFC,0x1F,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0xFF,0x7F,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0x80,0x00,0xA0,0x00,0x40,0x00}},/*"于",4*/ {{"你"},{0x10,0x01,0x10,0x01,0x10,0x01,0x88,0x7F,0x88,0x40,0x4C,0x20,0x2C,0x04,0x0A,0x04,0x89,0x14,0x88,0x24,0x48,0x24,0x48,0x44,0x28,0x44,0x08,0x04,0x08,0x05,0x08,0x02}},/*"你",5*/ {{"拥"},{0x04,0x00,0xE4,0x3F,0x24,0x22,0x24,0x22,0x3F,0x22,0xE4,0x3F,0x24,0x22,0x34,0x22,0x2C,0x22,0xE7,0x3F,0x24,0x22,0x24,0x22,0x24,0x22,0x14,0x22,0x15,0x2A,0x0A,0x10}},/*"拥",6*/ {{"有"},{0x40,0x00,0x40,0x00,0xFF,0x7F,0x20,0x00,0x20,0x00,0xF0,0x0F,0x10,0x08,0x18,0x08,0xF4,0x0F,0x12,0x08,0x11,0x08,0xF0,0x0F,0x10,0x08,0x10,0x08,0x10,0x0A,0x10,0x04}},/*"有",7*/ {{"多"},{0x40,0x00,0x40,0x00,0xE0,0x0F,0x10,0x04,0x1C,0x02,0x20,0x01,0xC0,0x02,0x30,0x01,0x8E,0x1F,0x40,0x10,0x30,0x08,0x4C,0x04,0x80,0x02,0x80,0x01,0x70,0x00,0x0E,0x00}},/*"多",8*/ {{"少"},{0x80,0x00,0x80,0x00,0x80,0x00,0x90,0x04,0x90,0x08,0x88,0x10,0x88,0x20,0x84,0x28,0x82,0x08,0x80,0x04,0x00,0x02,0x00,0x01,0x80,0x00,0x40,0x00,0x30,0x00,0x0E,0x00}},/*"少",9*/ {{"而"},{0x00,0x00,0xFE,0x3F,0x80,0x00,0x80,0x00,0x40,0x00,0xFC,0x1F,0x24,0x11,0x24,0x11,0x24,0x11,0x24,0x11,0x24,0x11,0x24,0x11,0x24,0x11,0x24,0x11,0x04,0x14,0x04,0x08}},/*"而",10*/ {{"怎"},{0x10,0x00,0x10,0x00,0xF0,0x3F,0x28,0x00,0x24,0x00,0xE2,0x0F,0x20,0x00,0x20,0x00,0xE0,0x1F,0x20,0x00,0x80,0x00,0x10,0x21,0x12,0x49,0x12,0x48,0xE1,0x0F,0x00,0x00}},/*"怎",11*/ {{"么"},{0x80,0x00,0x80,0x00,0x40,0x00,0x40,0x00,0x20,0x02,0x10,0x02,0x08,0x01,0x04,0x01,0x82,0x00,0x40,0x00,0x20,0x04,0x10,0x08,0x08,0x10,0xFC,0x3F,0x08,0x20,0x00,0x00}},/*"么",12*/ {{"使"},{0x08,0x02,0x08,0x02,0xF8,0x7F,0x04,0x02,0x04,0x02,0xE6,0x3F,0x26,0x22,0x25,0x22,0xE4,0x3F,0x04,0x02,0x44,0x02,0x84,0x02,0x04,0x01,0x84,0x02,0x44,0x0C,0x34,0x70}},/*"使",13*/ {{"用"},{0x00,0x00,0xFC,0x1F,0x84,0x10,0x84,0x10,0x84,0x10,0xFC,0x1F,0x84,0x10,0x84,0x10,0x84,0x10,0xFC,0x1F,0x84,0x10,0x84,0x10,0x84,0x10,0x82,0x10,0x82,0x14,0x01,0x08}}/*"用",14*/ }; TFT_LCD.h在LCD的头文件中定义中文字符大小的枚举类型 //定义汉字字体枚举类型 typedef enum { CHN_font_16 = 16, CHN_font_24 = 24 }CHN_font_t; //断言宏定义 #define IS_CHN_FONT(font) (((font) == CHN_font_16) || ((font) == CHN_font_24)) TFT_LCD.c编写显示一个中文字符的函数，原理与显示一个ASCII码字符一样，都是找到对应的字符，然后遍历该字符的字模数据，为1则显示字体颜色，为0则显示背景颜色 /** * @name LCD_SetWindows * @brief 设置LCD显示窗口 * @param usXstar：窗口起点x轴坐标 * usYstar：窗口起点y轴坐标 * usXwidth：窗口宽度 * usYheight：窗口高度 * @retval None */ static void LCD_SetWindows(uint16_t ususXstar,uint16_t usYstar,uint16_t usXwidth,uint16_t usYheight) { LCD_WRITE_CMD(LCD_CMD_SET_X_ORGIN); //发送设置X轴坐标的命令0x2A //参数SC[15:0] -> 设置起始列地址，也就是设置X轴起始坐标 LCD_WRITE_DATA(ususXstar>>8); //先写高8位 LCD_WRITE_DATA(ususXstar&0x00FF); //再写低8位 //参数EC[15:0] -> 设置窗口X轴结束的列地址，因为参数usXwidth是窗口长度，所以要转为列地址再发送 LCD_WRITE_DATA((ususXstar+usXwidth-1)>>8); //先写高8位 LCD_WRITE_DATA((ususXstar+usXwidth-1)&0x00FF); //再写低8位 LCD_WRITE_CMD(LCD_CMD_SET_Y_ORGIN); //发送设置Y轴坐标的命令0x2B //参数SP[15:0] -> 设置起始行地址，也就是设置Y轴起始坐标 LCD_WRITE_DATA(usYstar>>8); //先写高8位 LCD_WRITE_DATA(usYstar&0x00FF); //再写低8位 //参数EP[15:0] -> 设置窗口Y轴结束的列地址，因为参数usYheight是窗口高度，所以要转为行地址再发送 LCD_WRITE_DATA((usYstar+usYheight-1)>>8); //先写高8位 LCD_WRITE_DATA((usYstar+usYheight-1)&0x00FF); //再写低8位 LCD_WRITE_CMD(LCD_CMD_WRGRAM); //开始往GRAM里写数据 } /** * @name LCD_ShowCHN * @brief LCD屏幕显示一个中文字符 * @param usXstar：窗口起点x轴坐标 * usYstar：窗口起点y轴坐标 * pcStr：要显示的英文字符串 * usColor_Background：选择英文字符的背景色 * usColor_Foreground：选择英文字符的前景色 * font：字体选择 参数：CHN_font_16 ：16号字体；CHN_font_24 ：24号字体 * @retval None */ static void LCD_ShowCHN(uint16_t usXstar, uint16_t usYstar, const char* pcStr, uint16_t usColor_Background, uint16_t usColor_Foreground, CHN_font_t font) { uint8_t ucTemp,ucPage,ucColumn; uint16_t usIndex; //字库中汉字的索引 uint16_t usCHN_Num; //字库中汉字数量 //检查参数是否合法 assert_param(IS_CHN_FONT(font)); //判断字体-16号字体 if(font == CHN_font_16) { //统计汉字数量 usCHN_Num = sizeof(ucCHN_CHN16)/sizeof(FONT_CHN16_t); //字模数组大小除以结构体大小，得到汉字的个数 //for循环判断汉字位置 for(usIndex=0;usIndex LCD_WIGHT) { usXstar = 0; usYstar += CHN_font; } //自动换页 if((usYstar+CHN_font) > LCD_HIGHT) { usXstar = 0; usYstar = 0; } //显示中文字符 TFT_LCD.LCD_ShowCHN(usXstar,usYstar,pcStr,usColor_Background,usColor_Foreground,CHN_font); //更新位置 pcStr += 2; //下一个中文字符 usXstar += CHN_font; //坐标位置加上一个字符间隔 } //英文字符 else { if((*pcStr == '\r') || (*pcStr == '\n')) { //前面的字符为中文 if(*(pcStr-1) > 127) { //换行 usXstar = 0; usYstar += CHN_font; } //前面的字符为英文 else { //换行 usXstar = 0; usYstar += ASCII_font; } } else { //自动换行 if((usXstar+ASCII_font/2) > LCD_WIGHT) { usXstar = 0; usYstar += ASCII_font; } //自动换页 if((usYstar+ASCII_font) > LCD_HIGHT) { usXstar = 0; usYstar = 0; } //显示英文字符 TFT_LCD.LCD_ShowChar(usXstar,usYstar,*pcStr,usColor_Background,usColor_Foreground,ASCII_font); //更新位置 usXstar += ASCII_font/2; //坐标位置加上一个字符间隔 } pcStr++; //指向下一个字符 } } }System.c 系统运行函数中调用显示中英文字符串显示中文，这次并没有显示英文，而且中文字体大小为24x24 /* * @name Run * @brief 系统运行 * @param None * @retval None */ static void Run() { TFT_LCD.LCD_ShowCHNandENGString(25,70,"时间",Color_BLACK,Color_WHITE,CHN_font_24,ASCII_font_16); TFT_LCD.LCD_ShowCHNandENGString(25,120,"不在于你拥有多少",Color_BLACK,Color_WHITE,CHN_font_24,ASCII_font_16); TFT_LCD.LCD_ShowCHNandENGString(25,170,"而在于你怎么使用",Color_BLACK,Color_WHITE,CHN_font_24,ASCII_font_16); } 显示效果
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