一、GBK字體的內碼獲取

#include <stdio.h>
#include <stdint.h>

int main(void)
{

? ? uint8_t *str="國"; ? ? ? ? ? ? ? ? //一個中文字體占2個字節
? ? uint8_t p,q;
? ? p=*str; ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? //獲取國字內碼的前一個字節
? ? q=*(++str); ? ? ? ? ? ? ? ? ? ? ? ?? //獲取國字內碼的前一個字節
? ? printf("%.2X,%.2X\r\n",p,q);//打印GBK字體內碼
? ? return 0;
}

? ? ? ? ? ?

用原子哥開發的內碼軟件查看國字的內碼如下：

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

國字打印的內碼和原子哥的內碼查詢軟件是一樣的。

每個 GBK 碼由 2 個字節組成，第一個字節為 0X81~0XFE，第二個字節分為兩部分（區域），一部分是 0X40~0X7E，第二部分是 0X80~0XFE。其中 GBK 碼與 GB2312碼?相同的區域，字完全相同。

二、根據內碼LCD顯示點陣庫

在LCD上顯示“我為中華之崛起而讀書”9個字體，先獲取它們的內碼，如下所示，

#include <stdio.h>
#include <stdint.h>
#include <string.h>

int main(void)
{

? ? uint8_t *str="為中華之崛起而讀書";
? ? 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;
}

“為中華之崛起而讀書”的內碼如下所示，

? ? ? ? ? ? ??

用“PCtoLCD2002.exe”軟件獲取“為中華之崛起而讀書”的點陣庫，如下圖所示，

在數組或者內存中以以下方式存儲，

? ? ? ? ? ? ? ? ? ? ? ? ? ? Flash地址或EEPROM地址（74個字節）--1個字體的點陣庫內存大小
內碼高字節1Byte	內碼低字節1Byte	字體點陣庫72Byte（假設字體為24*24）

定義一個數組，把內碼和字體點陣庫放在一起，如下圖所示，

const uint8_t font[]={
0xCE,0xAA,/*"為"的內碼高位和低位*/
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,/*"為",0*
?? ?
0xD6,0xD0,/*"中"的內碼高位和低位*/
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,/*"華"的內碼高位和低位*/
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,/*"華",2*/
?? ?
0xD6,0xAE,/*"之"的內碼高位和低位*/
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"的內碼高位和低位*/
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"的內碼高位和低位*/
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"的內碼高位和低位*/
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,/*"讀"的內碼高位和低位*/
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,/*"讀",7*/

0xCA,0xE9,/*"書"的內碼高位和低位*/
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/*"書",8*/
}

//==============================================================================//

把字體通過函數作為實參傳進來，獲取實參字體的內碼，然后掃描font數組中的每一個字體的內碼，如果內碼相等，則送到LCD上顯示，如果不相等，則往下掃描，直到內碼相等跳出或者把數組的所有內碼掃描完匹配結束。

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為字體個數
?? ??? ???high = *(ch+i*2); ? ? ? ?//high為高字節內碼
?? ? ? ? ?low ?= *(ch+(i*2+1)); ? ?? //low為低字節內碼
?? ??? ??? ?
?? ??? ??? for(k = 0;k < sizeof(font);k+=((sizeof(font)-2*fontNum)/fontNum+2))//預掃描所有字體的內碼
?? ??? ??? ?{
?? ??? ??? ??? ??? ??? ?if((font[k] == high)&&((font[k+1] == low)))//內碼的判斷
?? ??? ??? ??? ??? ??? ?{
?? ??? ??? ??? ??? ??? ??? ??? ?for(t = k+2; t < (k+((sizeof(font)-2*fontNum)/fontNum+2)); t++)//16-->32，24-->48,36-->72
?? ??? ??? ??? ??? ??? ??? ??? ?{ ? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ? ??
?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?temp = font[t];?? ?//得到點陣數據?
?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?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;//內碼相等，送給LCD顯示，并結束掃描，繼續下一個字體的內碼掃描
?? ??? ??? ??? ??? ??? ??? ?}
?? ??? ??? ??? ?}?? ??? ??? ??? ?
?? ??? ?}
}

//=================================================================================//

main函數實現如下：

#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();? //初始化系統時鐘為80M
? ? delay_init(80); ? ? ? ? ? ? ? ? //初始化延時函數80M系統時鐘
? ? uart_init(115200); ? ? ? ? ? //初始化串口，波特率為115200

? ? LED_Init(); ? ? ? ? ? ? ? ? ? ? //初始化LED
? ? LCD_Init(); ? ? ? ? ? ? ? ? ? ? //初始化LCD
? ? KEY_Init();
? ? RTC_Init();

? ? while(1)
? ? {?
?? ??? ??? ?POINT_COLOR = RED;? //字體顏色
?? ??? ??? ?BACK_COLOR = WHITE; ? //字體背景顏色

?? ??? ??? ?displayGB2312(10, 100, (uint8_t*)"為中華之崛起而讀書",24, 9, 0);//x=10,y=100,24字體大小，9為字體個數
? ? }
}

//==================================================================================//

在LCD上顯示如下圖所示，

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??

由于是晚上，液晶屏和字體比較小，在上圖沒有看到字體在LCD上顯示，下圖會看到字體顯示。

謝謝！光臨......

? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ??

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