第71节：液晶屏的字符，16点阵，24点阵和32点阵的显示程序

这一节要教会大家二个知识点：

第一个：如何利用任意点阵字体显示函数display_lattice来显示8x16的字符，16点阵汉字，24点阵汉字和32点阵汉字。

第二个：纠正上一节的一个小错误。C51编译器跟其它单片机的编译器有点不一样。想把常量数据保存在ROM程序存储区里并不是用const关键字，而是是用code关键字。

具体内容，请看源代码讲解。

(1)硬件平台：

基于朱兆祺51单片机学习板。

(2)实现功能：开机上电后，可以看到液晶屏分别显示32点阵，24点阵和16点阵的“馒头”两个字，还有“V5”这两个8x16点阵的字符。

(3)源代码讲解如下：

#include "REG52.H"

sbit LCDCS_dr = P1^6; //片选线

sbit LCDSID_dr = P1^7; //串行数据线

sbit LCDCLK_dr = P3^2; //串行时钟线

sbit LCDRST_dr = P3^4; //复位线

void SendByteToLcd(unsigned char ucData); //发送一个字节数据到液晶模块

void SPIWrite(unsigned char ucWData, unsigned char ucWRS); //模拟SPI发送一个字节的命令或者数据给液晶模块的底层驱动

void WriteCommand(unsigned char ucCommand); //发送一个字节的命令给液晶模块

void LCDWriteData(unsigned char ucData); //发送一个字节的数据给液晶模块

void LCDInit(void); //初始化 函数内部包括液晶模块的复位

void display_lattice(unsigned int x,unsigned int y,const unsigned char *ucArray,unsigned char ucFbFlag,unsigned int x_amount,unsigned int y_amount); //显示任意点阵函数

void display_clear(void); // 清屏

void delay_short(unsigned int uiDelayshort); //延时

/* 注释一：

* 纠正上一节的一个小错误。C51编译器跟其它的编译器有点不一样。

* 存在ROM程序存储区里的常量数据并不是用const关键字，而是是用code关键字。

*/

code unsigned char Hz3232_man[]= /*馒 横向取模 32x32点阵 */

{

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x06,0x07,0x03,0x00,0x0F,0x87,0xFF,0x80,

0x0F,0x07,0x03,0x80,0x0E,0x07,0x03,0x80,0x0E,0x37,0xFF,0x80,0x1C,0x7F,0x03,0x80,

0x1F,0xFF,0x03,0x80,0x18,0x77,0xFF,0x00,0x38,0xE0,0x00,0xC0,0x36,0xDF,0xFF,0xF0,

0x77,0x9C,0xCE,0xE0,0x67,0x1C,0xCE,0xE0,0xC7,0x1C,0xCE,0xE0,0x07,0x1C,0xCE,0xE0,

0x07,0x1F,0xFF,0xE0,0x07,0x18,0x00,0x00,0x07,0x00,0x03,0x80,0x07,0x0F,0xFF,0xC0,

0x07,0x71,0x8F,0x00,0x07,0xE0,0xDE,0x00,0x07,0xC0,0xFC,0x00,0x07,0x80,0x78,0x00,

0x0F,0x01,0xFE,0x00,0x07,0x03,0x8F,0xE0,0x00,0x1E,0x03,0xF0,0x00,0xF8,0x00,0x00,

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

};

code unsigned char Hz3232_tou[]= /*头 横向取模 32x32点阵 */

{

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x03,0xC0,0x00,0x00,0x03,0xE0,0x00,

0x03,0xC3,0xC0,0x00,0x00,0xF3,0x80,0x00,0x00,0x7B,0x80,0x00,0x00,0x7B,0x80,0x00,

0x00,0x3B,0x80,0x00,0x0E,0x03,0x80,0x00,0x07,0x83,0x80,0x00,0x03,0xC3,0x80,0x00,

0x01,0xE3,0x80,0x00,0x01,0xE3,0x80,0x00,0x00,0xC3,0x80,0x00,0x00,0x03,0x81,0xE0,

0x7F,0xFF,0xFF,0xF0,0x00,0x07,0x80,0x30,0x00,0x07,0x00,0x00,0x00,0x07,0x80,0x00,

0x00,0x0E,0xE0,0x00,0x00,0x1E,0x7C,0x00,0x00,0x3C,0x1F,0x00,0x00,0x78,0x0F,0xC0,

0x00,0xF0,0x03,0xC0,0x03,0xC0,0x01,0xE0,0x0F,0x00,0x00,0xE0,0x78,0x00,0x00,0x00,

0x60,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,

};

code unsigned char Hz2424_man[]= /*馒 横向取模 24x24点阵 */

{

0x00,0x00,0x00,0x00,0x00,0x00,0x0C,0x18,0x30,0x1E,0x1F,0xF8,0x1C,0x1C,0x38,0x1C,

0x1F,0xF8,0x19,0xFC,0x38,0x3F,0xFF,0xF8,0x31,0x98,0x30,0x7B,0xE0,0x0E,0x6F,0x7F,

0xFE,0x6E,0x76,0xEE,0xCC,0x76,0xEE,0x0C,0x7F,0xFE,0x0C,0x70,0x0C,0x0C,0x00,0x38,

0x0C,0x3F,0xF8,0x0D,0xCE,0x70,0x0F,0x87,0xE0,0x0F,0x03,0x80,0x1E,0x07,0xE0,0x0C,

0x1C,0x7E,0x01,0xF0,0x1F,0x00,0x00,0x00,

};

code unsigned char Hz2424_tou[]= /*头 横向取模 24x24点阵 */

{

0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0E,0x00,0x06,0x0F,0x00,0x07,0x8E,0x00,0x01,

0xEE,0x00,0x00,0xEE,0x00,0x00,0xEC,0x00,0x1C,0x0C,0x00,0x0F,0x0C,0x00,0x07,0x9C,

0x00,0x03,0x9C,0x00,0x00,0x1C,0x0C,0x00,0x1C,0x1E,0x7F,0xFF,0xF6,0x00,0x1C,0x00,

0x00,0x3C,0x00,0x00,0x3F