一、GBK字体的内码获取
#include <stdio.h>
#include <stdint.h>
int main(void)
{
uint8_t *str="国"; //一个中文字体占2个字节
uint8_t p,q;
p=*str; //获取国字内码的前一个字节
q=*(++str); //获取国字内码的前一个字节
printf("%.2X,%.2X\r\n",p,q);//打印GBK字体内码
return 0;
}
用原子哥开发的内码软件查看国字的内码如下：
国字打印的内码原子哥的内码查询软件是一样的。
每个 GBK 码由 2 个字节组成，第一个字节为 0X81~0XFE，第二个字节分为两部分，一是 0X40~0X7E，二是 0X80~0XFE。其中与 GB2312 相同的区域，字完全相同。
二、根据内码LCD显示点阵库
在LCD上显示“我为中华之崛起而读书”9个字体，先获取它们的内码，如下所示，
#include <stdio.h>
#include <stdint.h>
#include <string.h>
int main(void)
{
uint8_t *str="为中华之崛起而读书";
uint8_t i;
for(i=0;i<(strlen(str)/2);i++)
{
printf("%#.2X,%#.2X\r\n",*(str+i*2),*(str+(i*2+1)));
}
return 0;
}
“为中华之崛起而读书”的内码如下所示，
用“PCtoLCD2002.exe”软件获取“为中华之崛起而读书”的点阵库，如下图所示，
在数组或者内存中以以下方式存储，
| Flash地址或EEPROM地址（74个字节）--1个字体的点阵库内存大小 |
||
| 内码高字节1Byte |
内码低字节1Byte |
字体点阵库72Byte（假设字体为24*24） |
定义一个数组，把内码和字体点阵库放在一起，如下图所示，
const uint8_t font[]={
0xCE,0xAA,/*"为"的内码高位和低位*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x02,0x00,0x80,0x04,0x00,0x80,0x08,0x10,0x80,0x10,0x0C,0x80,0x30,0x0E,0x80,0x60,0x00,0x81,0xC0,0x00,0x87,0x00,0x00,0xBC,0x00,0x7F,0xF0,0x00,0x3E,0x88,0x00,0x20,0x88,0x08,0x00,0x84,0x08,0x00,0x86,0x08,0x00,0x83,0x04,0x00,0x81,0x86,0x00,0x80,0x06,0x00,0x80,0x1C,0x00,0xFF,0xF8,0x00,0xFE,0x00,0x00,0x80,0x00,0x00,0x00,0x00,/*"为",0*
0xD6,0xD0,/*"中"的内码高位和低位*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xFF,0x00,0x03,0xFE,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x7F,0xFF,0xFE,0x22,0x04,0x0C,0x02,0x04,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x02,0x04,0x00,0x03,0xFF,0x00,0x03,0xFE,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"中",1*/
0xBB,0xAA,/*"华"的内码高位和低位*/
0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x40,0x80,0x00,0x80,0x80,0x03,0x00,0x80,0x06,0x0E,0x80,0x1B,0xFC,0x80,0x70,0x00,0x80,0x20,0x20,0x80,0x00,0x20,0x80,0x00,0x40,0x80,0x00,0x47,0xFE,0x7F,0xF4,0x84,0x3F,0xF8,0x80,0x01,0x08,0x80,0x03,0x08,0x80,0x02,0x08,0x80,0x04,0x08,0x80,0x0C,0x08,0x80,0x18,0x08,0x80,0x08,0x08,0x80,0x00,0xF8,0x80,0x00,0x00,0x00,0x00,0x00,0x00,/*"华",2*/
0xD6,0xAE,/*"之"的内码高位和低位*/
0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x00,0x18,0x01,0x00,0x10,0x01,0x00,0x20,0x01,0x00,0x20,0x01,0x00,0x60,0x01,0x00,0x90,0x01,0x01,0x10,0x21,0x02,0x08,0x11,0x06,0x08,0x1D,0x0C,0x0C,0x01,0x18,0x0C,0x01,0x30,0x0C,0x01,0x60,0x0C,0x01,0xC0,0x0C,0x01,0x80,0x0C,0x01,0x80,0x0C,0x00,0x00,0x0C,0x00,0x00,0x0C,0x00,0x00,0x0C,0x00,0x00,0x08,0x00,0x00,0x00,0x00,0x00,0x00,/*"之",3*/
0xE1,0xC8,/*"崛"的内码高位和低位*/
0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xFF,0xC0,0x02,0x00,0x40,0x00,0x00,0x80,0x7F,0xFF,0x80,0x00,0x00,0x80,0x00,0x01,0x02,0x03,0xFF,0xCC,0x00,0x00,0x30,0x00,0x01,0xE0,0x3F,0xFE,0x00,0x24,0x00,0x08,0x24,0x7C,0xF8,0x24,0x44,0x88,0x24,0x04,0x08,0x24,0x04,0x08,0x24,0xFF,0xF8,0x24,0x04,0x08,0x24,0x04,0x08,0x3E,0x7E,0x08,0x3E,0x46,0xFC,0x00,0x00,0x00,0x00,0x00,0x00,/*"崛",4*/
0xC6,0xF0,/*"起"的内码高位和低位*/
0x00,0x00,0x00,0x00,0x40,0x02,0x00,0x40,0x1C,0x04,0x47,0xE0,0x04,0x4F,0x40,0x04,0x40,0x20,0x04,0x40,0x10,0x7F,0xFF,0xF8,0x24,0x7F,0xF8,0x04,0x42,0x08,0x04,0x42,0x0C,0x04,0xC6,0x04,0x00,0x40,0x04,0x08,0x00,0x04,0x08,0x7F,0xE4,0x08,0x40,0x26,0x08,0x40,0x26,0x08,0x40,0x26,0x08,0x40,0x26,0x08,0x40,0x26,0x0F,0xE0,0x26,0x00,0x03,0xE4,0x00,0x00,0x00,0x00,0x00,0x00,/*"起",5*/
0xB6,0xF8,/*"而"的内码高位和低位*/
0x00,0x00,0x00,0x10,0x00,0x00,0x10,0x00,0x00,0x10,0x00,0x00,0x10,0xFF,0xFC,0x10,0x80,0x00,0x10,0x80,0x00,0x10,0x80,0x00,0x10,0x80,0x00,0x10,0xFF,0xF8,0x13,0x80,0x00,0x1C,0x80,0x00,0x18,0x80,0x00,0x10,0x80,0x00,0x10,0xFF,0xF8,0x10,0x80,0x08,0x10,0x80,0x04,0x10,0x80,0x04,0x10,0x80,0x06,0x11,0xFF,0xFC,0x30,0x80,0x00,0x10,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"而",6*/
0xB6,0xC1,/*"读"的内码高位和低位*/
0x00,0x00,0x00,0x00,0x40,0x00,0x00,0x40,0x00,0x20,0x40,0x00,0x18,0x7F,0xF8,0x0C,0x40,0x08,0x00,0x00,0x10,0x01,0x00,0x20,0x09,0x00,0xC2,0x09,0x08,0x82,0x09,0x44,0x84,0x09,0x27,0x84,0x09,0x30,0x88,0x09,0x00,0x98,0x7F,0x00,0xB0,0x09,0x7F,0xE0,0x09,0x3E,0x90,0x09,0x00,0x90,0x09,0x00,0x88,0x09,0x60,0x8C,0x01,0x80,0x86,0x01,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,/*"读",7*/
0xCA,0xE9,/*"书"的内码高位和低位*/
0x00,0x00,0x00,0x00,0x08,0x00,0x00,0x08,0x00,0x00,0x08,0x00,0x02,0x08,0x00,0x02,0x08,0x00,0x02,0x08,0x00,0x02,0x08,0x00,0x02,0x08,0x00,0x42,0x08,0x01,0x3F,0xFF,0xFE,0x02,0x08,0x00,0x02,0x08,0x00,0x02,0x08,0x00,0x02,0x08,0x00,0x02,0x08,0x00,0x02,0x18,0x20,0x23,0xF8,0x10,0x12,0x08,0x18,0x1C,0x08,0x18,0x0E,0x0F,0xF0,0x00,0x0E,0x00,0x00,0x00,0x00,0x00,0x00,0x00/*"书",8*/
}
//==============================================================================//
把字体通过函数作为实参传进来，获取实参字体的内码，然后扫描font数组中的每一个字体的内码，如果内码相等，则送到LCD上显示，如果不相等，则往下扫描，直到内码相等跳出或者把数组的所有内码扫描完匹配结束。
void displayGB2312(u16 x, u16 y, const u8 * ch, u8 size, u8 fontNum, u8 mode)
{
u32 t, dataBit;
char temp;
uint8_t high,low,i;
uint16_t k;
u16 y0 = y;
for(i = 0; i < fontNum; i++){ //fontNum为字体个数
high = *(ch+i*2); //high为高字节内码
low = *(ch+(i*2+1)); //low为低字节内码
for(k = 0;k < sizeof(font);k+=((sizeof(font)-2*fontNum)/fontNum+2))//预扫描所有字体的内码
{
if((font[k] == high)&&((font[k+1] == low)))//内码的判断
{
for(t = k+2; t < (k+((sizeof(font)-2*fontNum)/fontNum+2)); t++)//16-->32，24-->48,36-->72
{
temp = font[t]; //得到点阵数据
for(dataBit = 0; dataBit < 8; dataBit++)
{
if(temp & 0x80)
{
LCD_Draw_ColorPoint(x, y, POINT_COLOR);
}else if(mode==0){
LCD_Draw_ColorPoint(x, y, BACK_COLOR);
}
temp <<= 1;
y++;
if((y - y0) == size)
{
y = y0;
x++;
break;
}
}
}
break;//内码相等，送给LCD显示，并结束扫描，继续下一个字体的内码扫描
}
}
}
}
//=================================================================================//
main函数实现如下：
#include "sys.h"
#include "usart.h"
#include "delay.h"
#include "led.h"
#include "lcd.h"
#include "font.h"
#include "key.h"
#include "rtc.h"
int main(void)
{
HAL_Init();
SystemClock_Config(); //初始化系统时钟为80M
delay_init(80); //初始化延时函数80M系统时钟
uart_init(115200); //初始化串口，波特率为115200
LED_Init(); //初始化LED
LCD_Init(); //初始化LCD
KEY_Init();
RTC_Init();
while(1)
{
POINT_COLOR = RED; //字体颜色
BACK_COLOR = WHITE; //字体背景颜色
displayGB2312(10, 100, (uint8_t*)"为中华之崛起而读书",24, 9, 0);//x=10,y=100,24字体大小，9为字体个数
}
}
//==================================================================================//
在LCD上显示如下图所示，
由于是晚上，液晶屏和字体比较小，在上图没有看到字体在LCD上显示，下图会看到字体显示。
谢谢！光临......