单片机中不带字库LCD液晶屏显示少量汉字

单片机中不带字库LCD液晶屏如何显示少量汉字，一般显示汉字的方法有1.使用带字库的LCD屏，2.通过SD

卡或者外挂spi flash存中文字库，3.直接将需要的汉字取模存入mcu的flash中。

第一种方式最方便，带字库的液晶屏价格稍贵，第二种方式电路复杂价格也不便宜，第三种方法可以存储少

量必要的汉字，经济实用。将汉字字模数据存储到大数组中，通过偏移值来取出需要的汉字显示。

 

typedef struct _GB16  // 汉字字模数据结构
{
  char Index[2];  // 汉字内码索引
  char Msk[32];             // 点阵码数据
}GB16_Typedef;


const GB16_Typedef GB16x16[] = {//创建字库，阴码，顺向，逐行式取模

  {"天",0x00,0x00,0x3F,0xF8,0x01,0x00,0x01,0x00,
        0x01,0x00,0x01,0x00,0xFF,0xFE,0x01,0x00,
        0x02,0x80,0x02,0x80,0x04,0x40,0x04,0x40,
        0x08,0x20,0x10,0x10,0x20,0x08,0xC0,0x06},

  {"地",0x10,0x20,0x10,0x20,0x10,0x20,0x11,0x20,
        0x11,0x2C,0xFD,0x34,0x11,0x64,0x13,0xA4,
        0x11,0x24,0x11,0x34,0x11,0x28,0x1D,0x22,
        0xE1,0x22,0x41,0x02,0x00,0xFE,0x00,0x00},

  {"不",0x00,0x00,0x7F,0xFC,0x00,0x80,0x00,0x80,
        0x01,0x00,0x01,0x00,0x03,0x40,0x05,0x20,
        0x09,0x10,0x11,0x08,0x21,0x04,0x41,0x04,
        0x81,0x00,0x01,0x00,0x01,0x00,0x01,0x00},

  {"仁",0x08,0x00,0x08,0x00,0x08,0x00,0x13,0xFC,
        0x10,0x00,0x30,0x00,0x30,0x00,0x50,0x00,
        0x90,0x00,0x10,0x00,0x10,0x00,0x10,0x00,
        0x17,0xFE,0x10,0x00,0x10,0x00,0x10,0x00},

}

/*
其中定义的汉字结构体元素中Index[2]存放汉字，而Msk用于存放点阵码。
具体程序如下：
*/

void show_chinese(uint16_t x, uint16_t y, uint8_t *pstr, uint16_t pointColor, uint16_t backColor)
{
  
  uint8_t bit_cnt, byte_cnt, wordNum;
  uint16_t color, word_index;
  const GB16_Typedef* p_tab;
  
  p_tab = GB16x16; 
  wordNum = sizeof(GB24x24) / sizeof(GB24_Typedef);//汉字的个数

  while(*pstr != '\0')
  {
    for(word_index=0; word_index 225)   
        {
          x = 0;
          y += 16; 
        }
      } 
    }
  }
}



int main()
{ 
  TFT_Init();  //TFT彩屏初始化 
  LED_Init();  //LED初始化
  tft_clear_screen(BLACK); //清屏
  show_chinese(6, 20, "天地不仁", MAGENTA, YELLOW);//YELLOW
  
  while(1)
  { 
    KeyTask();//按键扫描
  } 

}