STM32液晶屏驱动程序.doc

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1、附录2整个设计全部源程序：/*以下是32x64点阵LED电子显示屏的源程序，采用C语言编写，在Keil VisionV2.38a（C51.Exe V7.06）以及MedWin3.0版环境下均测试通过。*/#include unsigned int zimo,xx=0;/zimo是字模计数器，xx为分屏显示的时候的字数。unsigned char yid,h;/yid为移动计数器，h为行段计数器unsigned char code hanzi;/汉字字模unsigned char BUFF18,BUFF218;/左移显示的缓存void qing(void);void xianshi(void);

2、void fen(void);void zuo(void);void in_data(void);/调整数据void rxd_data(void);/左移发送数据void out_rxd(unsigned char *d);/分屏、上移发送数据char code sw=0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x00; /*8行段码*/*主程序*/void main(void)unsigned char ee;SCON=0;P1=0;yid=0;zimo=0;while(1)fen();/分屏显示for(ee=30;ee0;ee-)/清屏幕3秒qing();zuo

3、();/左移显示for(ee=30;ee0;ee-)qing(); /*清屏幕*/void qing (void) unsigned char zz,xx=0x0ff;for (zz=33;zz0;zz-)out_rxd(&xx);P1=0xff; P1=0;/锁存为高，74HC595锁存信号P2=0;/清74LS138的使能端 /*分屏显示*/void fen(void)doxianshi();while(xx+0;kk-)/每屏显示500次for(ii=1;ii16;ii+=2)/每个汉字分8行扫描for (jj=0;jj8;jj+)/每次要发送8个汉字的2个字节,发送8次aa=(xx*8

4、+jj)*32+ii;out_rxd(&hanziaa);/从串口输出第1个字的第1字节。 out_rxd(&hanziaa-1);/从串口输出第1个字的第1字节。for (jj=0;jj8;jj+)/每次要发送8个汉字的2个字节,发送8次aa=(xx*8+jj)*32+ii; out_rxd(&hanziaa+16);/从串口输出第1个字的第17字节。out_rxd(&hanziaa+15);/从串口输出第1个字的第18字节P2=0x0ff;P1=0xff; P1=0;/锁存为高，74HC595锁存信号P2=swh; /输出行信号h+; /行加一if(h=8)h=0;/*左移显示*/void

5、 zuo(void)unsigned char i,d=5;/d为移动的时候一个汉字的扫描显示次数xianshi();/调用单屏显示while(zimo=1450)while(yid16)/数据移位。for(i=0;id;i+)/移动速度for(h=0;h=0;s-)w=s+s;qqq=zimo+h+h+s*32;BUFFw+1=hanziqqq;BUFFw=hanziqqq+1;BUFF2w+1=hanziqqq+16;BUFF2w=hanziqqq+17;/*左移显示的数据调整发送*/void rxd_data(void) /串行发送数据unsigned char inc,s,tempyi

6、d,temp;if(yid8)inc=0;elseinc=1;for(s=0+inc;s16+inc;s+) /发送数据 if(yidtempyid)|(BUFFs+1(8-tempyid);SBUF=temp;/把BUFF中的字节从大到小移位相或后发送输出。while(!TI);TI=0;/等待发送中断for(s=0+inc;s16+inc;s+) /发送8字节数据 if(yidtempyid)|(BUFF2s+1ODR=(GPIOB-ODR&0x807F)|(x & 0x00FF)7) /PE714,作为数据线#define LCD_PAGE_ADDR 0xb8#define LCD_CO

7、L_ADDR 0x40 void LCDPortSet(void); /LCD IO口配置void LcdInit(void); /初始化程序void LcdClear(void); /清屏程序 void WriteChr16x16(u8 pag,u8 col, u8 *chr); /写一个汉字 #endif/*lcd.c*/#include #include lcd.h#include delay.h/LCD IO口配置void LCDPortSet(void)RCC-APB2ENR|=1APB2ENR|=1CRH&=0XF; /PE8-14数据口GPIOE-CRH|=0X;GPIOE-CR

8、L&=0X0FFFFFFF; /PE7数据口GPIOE-CRL|=0X; GPIOE-ODR|=0X7F80; /上拉GPIOF-CRL&=0XF;GPIOF-CRL|=0X; /PF.0 1 2 3 4 5 6推挽输出GPIOF-ODR|=1ODR|=1ODR|=1ODR|=1ODR|=1ODR|=1ODR|=16; /PF.6 输出高void SelectChip1(void) /选择第1屏LCD_CS1=0;LCD_CS2=1;LCD_CS3=1;void SelectChip2(void) /选择第2屏LCD_CS1=1;LCD_CS2=0;LCD_CS3=1;void SelectC

9、hip3(void) /选择第3屏LCD_CS1=1;LCD_CS2=1;LCD_CS3=0;void WriteCommand(u8 cmd) /写命令 LCD_RS=0; /写命令/RW=0;LCD_DATA(cmd);LCD_E=1;delay_us(10);LCD_E=0;void WriteData(u8 dat) /写数据 LCD_RS=1; /写数据/RW=0;LCD_DATA(dat); /数据输出到数据口 LCD_E=1; /写入到LCD delay_us(10); LCD_E=0;void LcdClear(void) /清屏u16 j = 0;u16 k = 0;LCD_

10、CS1 = 0;LCD_CS2 = 0;LCD_CS3 = 0;WriteCommand(LCD_PAGE_ADDR + 0);WriteCommand(LCD_COL_ADDR + 0);for(k=0;k8;k+)WriteCommand(LCD_PAGE_ADDR+k);for(j=0;j64;j+) WriteData(0x00);LCD_CS1 = 1;LCD_CS2 = 1;LCD_CS3 = 1;void LcdInit(void) /初始化程序LCD_RST = 0;delay_us(20);LCD_RST = 1;delay_us(5);LCD_CS1=0;LCD_CS2=0

11、;LCD_CS3=0;WriteCommand(0x3f); /设置开显示命令WriteCommand(0xc0); /设置起始位置LCD_CS1 = 1;LCD_CS2 = 1;LCD_CS3 = 1;LcdClear(); /清屏void WriteChr16x16(u8 pag,u8 col,u8 *chr) /写一个汉字u8 i = 0;u8 j = 0;u8 col_t = 0;WriteCommand(0xc0);col_t = col;for(i=0;i2;i+) for(j=0;j16;j+) switch(col_t&0xc0)case 0:SelectChip1();Wri

12、teCommand(LCD_PAGE_ADDR + pag + i);WriteCommand(LCD_COL_ADDR + col_t - 0 );WriteData(chr16*i + j);col_t+;break;case 0x40:SelectChip2();WriteCommand(LCD_PAGE_ADDR + pag + i);WriteCommand(LCD_COL_ADDR + col_t - 64);WriteData(chr16*i + j);col_t+;break;case 0x80:SelectChip3();WriteCommand(LCD_PAGE_ADDR

13、+ pag + i);WriteCommand(LCD_COL_ADDR + col_t - 128);WriteData(chr16*i + j);col_t+;break;default: break; col_t=col_t-16;/*main.c*/*说明：JBG19264 LCD测试程序*/#include #include sys.h#include delay.h #include lcd.hu8 table32=/*- 文字: 我 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x20,0x24,0x24,0x24,0xFE,0x23,0x22,0x2

14、0,0x20,0xFF,0x20,0x22,0x2C,0xA0,0x20,0x00,0x00,0x08,0x48,0x84,0x7F,0x02,0x41,0x40,0x20,0x13,0x0C,0x14,0x22,0x41,0xF8,0x00,/*- 文字: 们 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x00,0x80,0x60,0xF8,0x07,0x00,0xF8,0x01,0x06,0x00,0x04,0x04,0x04,0xFC,0x00,0x00,0x01,0x00,0x00,0xFF,0x00,0x00,0xFF,0x00,0x00,0x00,0x

15、00,0x40,0x80,0x7F,0x00,0x00,/*- 文字: 都 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x20,0x24,0x24,0xA4,0x7F,0x24,0x34,0x28,0x26,0x20,0xFE,0x02,0x22,0xDA,0x06,0x00,0x04,0x02,0xFF,0x49,0x49,0x49,0x49,0xFF,0x00,0x00,0xFF,0x08,0x10,0x08,0x07,0x00,/*- 文字: 是 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x00,0x00,0x00,0x7F,

16、0x49,0x49,0x49,0x49,0x49,0x49,0x49,0x7F,0x00,0x00,0x00,0x00,0x81,0x41,0x21,0x1D,0x21,0x41,0x81,0xFF,0x89,0x89,0x89,0x89,0x89,0x81,0x81,0x00,/*- 文字: 好 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x10,0x10,0xF0,0x1F,0x10,0xF0,0x00,0x80,0x82,0x82,0xE2,0x92,0x8A,0x86,0x80,0x00,0x40,0x22,0x15,0x08,0x16,0x61,0x00

17、,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,/*- 文字: 孩 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x02,0x02,0x02,0xF2,0x8A,0x46,0x08,0x88,0xC8,0xA8,0x99,0x8E,0x88,0x48,0x28,0x00,0x02,0x42,0x81,0x7F,0x00,0x00,0x88,0x88,0x44,0x44,0x22,0x11,0x28,0x44,0x82,0x00,/*- 文字: 子 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x

18、80,0x82,0x82,0x82,0x82,0x82,0x82,0xE2,0xA2,0x92,0x8A,0x86,0x82,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*- 文字: 我 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x20,0x24,0x24,0x24,0xFE,0x23,0x22,0x20,0x20,0xFF,0x20,0x22,0x2C,0xA0,0x20,0x00,0x00,0x08,0x48,0x84,0x7F,0x02,0x41,0x40,0x20,0x13,0x0C,0x14,0x22,0x41,0xF8,0x00,/*- 文字: 们 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x00,0x80,0x60,0xF8,0x07,0x00,0xF8,0x01,0x06,0x00,0x04,0x04,0x04,0xFC