12864A液晶驱动16_16汉字+8_16数字字母.doc

作者：哈尔滨工业大学 周宇峰。引用务必注明出处/适用于12864A无字库液晶（左右屏幕）#include #include #define uchar unsigned char#define uint unsigned int/*/ sbit cs1=P21; sbit cs2=P22; sbit d_i=P20; sbit enb=P24; sbit r_w=P23; sbit rst=P25; sbit key=P37; sbit busy_bit=P27; sbit rst_bit=P24;/SMG12864A产品引脚说明及演示连线/PIN1: VSS 电源地/PIN2: VDD 电源正极/PIN3: Vo LCD偏压输入/PIN4: d_i 数据/命令选择端 1:数据 0:命令 接P20/PIN5: r_w 读写信号选择端 1:读操作 0:写操作 接P23/PIN6: enb 使能信号输入 高有效 接P24/PIN7: DB0 Data I/O 接P10/PIN8: DB1 Data I/O 接P11/PIN9: DB2 Data I/O 接P12/PIN10:DB3 Data I/O 接P13/PIN11:DB4 Data I/O 接P14/PIN12:DB5 Data I/O 接P16/PIN13:DB6 Data I/O 接P17/PIN14:DB7 Data I/O 接P18/PIN15:CS1 片选1信号输入 高有效 接P21 /PIN16:CS2 片选2信号输入 高有效 接P22/PIN17:RST 复位信号输入(H：正常工作,L:复位) 接P25/PIN18:VEE LCD驱动负压输出(-5V)/PIN19:BLA 背光源正极/PIN20:BLK 背光源负极uint code table1=0xb8,0xb9,0xba,0xbb,0xbc,0xbd,0xbe,0xbf;/页选项(共8页）uint code table2=0x40,0x50,0x60,0x70;/中文列选项(半屏各4个字，四个字的Y地址首列）uint code table3=0x40,0x48,0x50,0x58,0x60,0x68,0x70,0x78;/中文列选项(半屏各8个字母，八个字母的Y地址首列）void init();/初始化函数void write_com1(unsigned char d);/左半屏的写命令程序void write_data1(unsigned char d);/左半屏的写数据程序void write_com2(unsigned char d);/右半屏的写命令程序void write_data2(unsigned char d); /右半屏的写数据程序void write_ch_add1(uint z);/写汉字的页地址(上半个汉字的地址）（共四行八列32个汉字，1-32编号）void write_ch_add2(uint z);/写汉字的页地址（下半个汉字的地址）（共四行八列32个汉字，1-32编号）void write_ch(uint add,uchar z);/在确定的位置写字库中的汉字void write_en_add1(uint z);/写字母的页地址(上半个字母的地址）（共四行十六列64个字母，1-64编号）void write_en_add2(uint z);/写字母的页地址（下半个字母的地址）（共四行十六列64个字母，1-64编号）void write_en(uint add,uchar z);/在确定的位置写字库中的字母uchar read1(void); /读左半屏图形数据子程序uchar read2(void); /读右半屏图形数据子程序uchar *read_ch(uint); /读在x位置上的汉字的字模（32个字节）uchar *read_en(uint);/读在x位置上的字母的字模（16个字节）void check_busy1(void);/控制器1忙检测子程序void check_busy2(void);/控制器2忙检测子程序void button(uint z);/开关显示数据改变件，z=1为开；z=0为关；void clc(void); /清屏 void delay(uchar z);/延时程序void test();/测试程序，屏幕中按顺序写0-9，a-z,A-Z /需要时调出uint button_flag; /button_flag=0时，关闭写程程序，数据(关闭后注意要打开)uchar read_zimo32; /read_zimo为液晶读回来的字模，需要定义为全局变量，注意：程序执行中，不能改变rom中的值，所以a不能定义为code/主函数void main() uchar *zz;init();clc();write_ch(1,xiao);write_ch(2,feng);write_en(5,en_ll);write_en(6,en_o);write_en(7,en_v);write_en(8,en_e);write_ch(5,xiao);write_ch(6,mei);while(1);void init()button_flag=1;rst=0;rst=1; write_com1(0xc0);write_com1(0x3f);write_com2(0xc0);write_com2(0x3f);void write_com1(unsigned char d) check_busy1();if(button_flag!=0)P1=d; d_i=0; r_w=0; cs1=1; cs2=0; enb=1; enb=0; cs1=0;void write_data1(unsigned char d) check_busy1();if(button_flag!=0)P1=d; d_i=1; r_w=0; cs1=1; cs2=0; enb=1; enb=0; cs1=0;void write_com2(unsigned char d) check_busy2();if(button_flag!=0)P1=d; d_i=0; r_w=0; cs1=0; cs2=1; enb=1; enb=0; cs2=0;void write_data2(unsigned char d) check_busy2();if(button_flag!=0)P1=d; d_i=1; r_w=0; cs2=1; cs1=0; enb=1; enb=0; cs2=0;void clc(void) uint i,j;rst=0;rst=1;write_com1(0xc0);write_com1(0x3f);for(i=0;i0;j-)write_data1(0x00);write_com2(0xc0);write_com2(0x3f);for(i=0;i0;j-)write_data2(0x00);void write_ch_add1(uint z)uint a;a=z%8;if(a=1|a=2|a=3|a=4)write_com1(table1(z/8)*2); /写一个汉字上半部分的页地址write_com1(table2a-1);/写一个汉字上半部分的Y起始地址elseif(z%8=0)a=a+8;write_com2(table1(z/8)-1)*2);write_com2(table2a-5);elsewrite_com2(table1(z/8)*2);write_com2(table2a-5);void write_ch_add2(uint z)uint a;a=z%8;if(a=1|a=2|a=3|a=4)write_com1(table1(z/8)*2+1);write_com1(table2a-1);elseif(z%8=0)a=a+8;write_com2(table1(z/8)-1)*2+1);write_com2(table2a-5);elsewrite_com2(table1(z/8)*2+1);write_com2(table2a-5); void write_ch(uint add,uchar z)uint i;if(add%8)=1|(add%8)=2|(add%8)=3|(add%8)=4)write_ch_add1(add);for(i=0;i=15;i+)write_data1(zi);write_ch_add2(add);for(i=16;i=31;i+)write_data1(zi);elsewrite_ch_add1(add);for(i=0;i=15;i+)write_data2(zi);write_ch_add2(add);for(i=16;i=31;i+)write_data2(zi);void write_en_add1(uint z)uint a;a=z%16;if(a=1|a=2|a=3|a=4|a=5|a=6|a=7|a=8)write_com1(table1(z/16)*2); /写一个字母上半部分的页地址write_com1(table3a-1);/写一个字母上半部分的Y起始地址elseif(z%16=0)a=a+16;write_com2(table1(z/16)-1)*2);write_com2(table3a-9);elsewrite_com2(table1(z/16)*2);write_com2(table3a-9);void write_en_add2(uint z)uint a;a=z%16;if(a=1|a=2|a=3|a=4|a=5|a=6|a=7|a=8)write_com1(table1(z/16)*2+1);write_com1(table3a-1);elseif(z%16=0)a=a+16;write_com2(table1(z/16)-1)*2+1);write_com2(table3a-9);elsewrite_com2(table1(z/16)*2+1);write_com2(table3a-9);void write_en(uint add,uchar z)uint i;if(add%16)=1|(add%16)=2|(add%16)=3|(add%16)=4|(add%16)=5|(add%16)=6|(add%16)=7|(add%16)=8)write_en_add1(add);for(i=0;i=7;i+)write_data1(zi);write_en_add2(add);for(i=8;i=15;i+)write_data1(zi);elsewrite_en_add1(add);for(i=0;i=7;i+)write_data2(zi);write_en_add2(add);for(i=8;i=15;i+)write_data2(zi);uchar *read_en(uint add) uint i;uchar *x;/uchar a16; /注意：程序执行中，不能改变rom中的值，所以a不能定义为codeif(add%8)=1|(add%8)=2|(add%8)=3|(add%8)=4)write_ch_add1(add);for(i=1;i=8;i+)read_zimoi-1=read1();write_ch_add2(add);for(i=9;i=16;i+)read_zimoi-1=read1();elsewrite_ch_add1(add);for(i=1;i=8;i+)read_zimoi-1=read2();write_ch_add2(add);for(i=9;i=16;i+)read_zimoi-1=read2();x=read_zimo;return x;uchar *read_ch(uint add) uint i;uchar *x;/uchar a32; /注意：程序执行中，不能改变rom中的值，所以a不能定义为codeif(add%8)=1|(add%8)=2|(add%8)=3|(add%8)=4)write_ch_add1(add);for(i=1;i=16;i+)read_zimoi-1=read1();write_ch_add2(add);for(i=17;i=32;i+)read_zimoi-1=read1();elsewrite_ch_add1(add);for(i=1;i=16;i+)read_zimoi-1=read2();write_ch_add2(add);for(i=17;i=32;i+)read_zimoi-1=read2();x=&read_zimo0;return x;uchar read1(void) /读左半屏图形数据子程序 uchar d;check_busy1(); /检测液晶显示控制器是否空闲P1=0xff; d_i=1; r_w=1; cs1=1; cs2=0; enb=1; delay(2); d=P1; enb=0; cs1=0; return d;uchar read2(void) /读右半屏图形数据子程序 uchar d;check_busy2(); /检测液晶显示控制器是否空闲 P1=0xff;d_i=1; r_w=1; cs1=0; cs2=1; enb=1; delay(2); d=P1; enb=0; cs2=0; return d;void check_busy1(void) /控制器1忙检测子程序 uint i; P1=0xff; d_i=0; r_w=1; cs1=1; cs2=0; enb=1; for(i=0;i20;i+) / if( (P1&0x80) != 0x80 ) break; /D7=0 空闲退出 enb=0; cs1=0;void check_busy2(void) /控制器2忙检测子程序 uint i; P1=0xff; d_i=0; r_w=1; cs1=0; cs2=1; enb=1; for(i=0;i0;z-)for(j=5;j0;j-);void test() write_en(1,en_1);write_en(2,en_2);write_en(3,en_3);write_en(4,en_4);write_en(5,en_5);write_en(6,en_6);write_en(7,en_7);write_en(8,en_8);write_en(9,en_9);write_en(10,en_0);write_en(11,en_a);write_en(12,en_b);write_en(13,en_c);write_en(14,en_d);write_en(15,en_e);write_en(16,en_f);write_en(17,en_g);write_en(18,en_h);write_en(19,en_i);write_en(20,en_j);write_en(21,en_k);write_en(22,en_l);write_en(23,en_m);write_en(24,en_k);write_en(25,en_o);write_en(26,en_p);write_en(27,en_q);write_en(28,en_r);write_en(29,en_s);write_en(30,en_t);write_en(31,en_u);write_en(32,en_v);write_en(33,en_w);write_en(34,en_x);write_en(35,en_y);write_en(36,en_z); write_en(37,en_aa);write_en(38,en_bb);write_en(39,en_cc);write_en(40,en_dd);write_en(41,en_ee);write_en(42,en_ff);write_en(43,en_gg);write_en(44,en_hh);write_en(45,en_ii);write_en(46,en_jj);write_en(47,en_kk);write_en(48,en_ll);write_en(49,en_mm);write_en(50,en_nn);write_en(51,en_oo);write_en(52,en_pp);write_en(53,en_qq);write_en(54,en_rr);write_en(55,en_ss);write_en(56,en_tt);write_en(57,en_uu);write_en(58,en_vv);write_en(59,en_ww);write_en(60,en_xx);write_en(61,en_yy);write_en(62,en_zz); /需要时调出/字库#define uchar unsigned char#define uint unsigned intuchar code zhou=0x00,0x00,0xFE,0x82,0x92,0x92,0x92,0xFE,0x92,0x92,0x92,0x82,0xFE,0x00,0x00,0x00,0x80,0x60,0x1F,0x00,0x00,0x1E,0x12,0x12,0x12,0x1E,0x40,0x80,0x7F,0x00,0x00,0x00;/*周,0*/uchar code yu=0x10,0x0C,0x24,0x24,0x24,0x24,0x25,0xE6,0x24,0x24,0x24,0x24,0x24,0x14,0x0C,0x00,0x02,0x02,0x02,0x02,0x02,0x42,0x82,0x7F,0x02,0x02,0x02,0x02,0x02,0x02,0x02,0x00;/*宇,0*/uchar code feng=0x00,0xF0,0x00,0xFF,0x00,0xF0,0x80,0x90,0x4C,0x57,0xA4,0x54,0x4C,0x84,0x80,0x00,0x00,0x1F,0x10,0x0F,0x08,0x1F,0x10,0x10,0x15,0x15,0xFF,0x15,0x15,0x10,0x10,0x00;/*峰,0*/uchar code xiao=0x00,0x00,0x00,0xE0,0x00,0x00,0x00,0xFF,0x00,0x00,0x00,0x20,0x40,0x80,0x00,0x00,0x08,0x04,0x03,0x00,0x00,0x40,0x80,0x7F,0x00,0x00,0x00,0x00,0x00,0x01,0x0E,0x00;/*小,0*/uchar code mei=0x10,0x10,0xD0,0xFF,0x50,0x90,0x08,0xF7,0x14,0x54,0x94,0x14,0xF4,0x04,0x00,0x00,0x04,0x03,0x00,0xFF,0x00,0x01,0x1D,0x13,0x11,0x55,0x99,0x51,0x3F,0x11,0x01,0x00;/*梅,0*/uchar code en_0=0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00;/*0,0*/uchar code en_1=0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00;/*1,1*/uchar code en_2=0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00,0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00;/*2,2*/uchar code en_3=0x00,0x30,0x08,0x88,0x88,0x48,0x30,0x00,0x00,0x18,0x20,0x20,0x20,0x11,0x0E,0x00;/*3,3*/uchar code en_4=0x00,0x00,0xC0,0x20,0x10,0xF8,0x00,0x00,0x00,0x07,0x04,0x24,0x24,0x3F,0x24,0x00;/*4,4*/uchar code en_5=0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00,0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00;/*5,5*/uchar code en_6=0x00,0xE0,0x10,0x88,0x88,0x18,0x00,0x00,0x00,0x0F,0x11,0x20,0x20,0x11,0x0E,0x00;/*6,6*/uchar code en_7=0x00,0x38,0x08,0x08,0xC8,0x38,0x08,0x00,0x00,0x00,0x00,0x3F,0x00,0x00,0x00,0x00;/*7,7*/uchar code en_8=0x00,0x70,0x88,0x08,0x08,0x88,0x70,0x00,0x00,0x1C,0x22,0x21,0x21,0x22,0x1C,0x00;/*8,8*/uchar code en_9=0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00,0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00;/*9,9*/uchar code juhao=0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00,0x00,0x00;/*.,0*/uchar code maohao=0x00,0x00,0x00,0xC0,0xC0,0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x30,0x00,0x00,0x00;/*:,1*/uchar code douhao=0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0xB0,0x70,0x00,0x00,0x00,0x00,0x00;/*,2*/uchar code tanhao=0x00,0x00,0x00,0xF8,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x33,0x30,0x00,0x00,0x00;/*!,5*/uchar code at=0xC0,0x30,0xC8,0x28,0xE8,0x10,0xE0,0x00,0x07,0x18,0x27,0x24,0x23,0x14,0x0B,0x00;/*,6*/uchar code baifen=0xF0,0x08,0xF0,0x00,0xE0,0x18,0x00,0x00,0x00,0x21,0x1C,0x03,0x1E,0x21,0x1E,0x00;/*%,7*/uchar code wenhao=0x00,0x70,0x48,0x08,0x08,0x08,0xF0,0x00,0x00,0x00,0x00,0x30,0x36,0x01,0x00,0x00;/*?,12*/uchar code sheshi=0x06,0x09,0x09,0xE6,0xF8,0x0C,0x04,0x02,0x02,0x02,0x02,0x02,0x04,0x1E,0x00,0x00,0x00,0x00,0x00,0x07,0x1F,0x30,0x20,0x40,0x40,0x40,0x40,0x40,0x20,0x10,0x00,0x00;/*,13*/uchar code en_a=0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x19,0x24,0x22,0x22,0x22,0x3F,0x20;/*a,0*/uchar code en_b=0x08,0xF8,0x00,0x80,0x80,0x00,0x00,0x00,0x00,0x3F,0x11,0x20,0x20,0x11,0x0E,0x00;/*b,0*/uchar code en_c=0x00,0x00,0x00,0x80,0x80,0x80,0x00,0x00,0x00,0x0E,0x11,0x20,0x20,0x20,0x11,0x00;/*c,2*/uchar code en_d=0x00,0x00,0x00,0x80,0x80,0x88,0xF8,0x00,0x00,0x0E,0x11,0x20,0x20,0x10,0x3F,0x20;/*d,3*/uchar code en_e=0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x22,0x22,0x22,0x22,0x13,0x00;/*e,4*/uchar code en_f=0x00,0x80,0x80,0xF0,0x88,0x88,0x88,0x18,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00;/*f,5*/uchar code en_g=0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x6B,0x94,0x94,0x94,0x93,0x60,0x00;/*g,6*/uchar code en_h=0x08,0xF8,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20;/*h,7*/uchar code en_i=0x00,0x80,0x98,0x98,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00;/*i,8*/uchar code en_j=0x00,0x00,0x00,0x80,0x98,0x98,0x00,0x00,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00;/*j,9*/uchar code en_k=0x08,0xF8,0x00,0x00,0x80,0x80,0x80,0x00,0x20,0x3F,0x24,0x02,0x2D,0x30,0x20,0x00;/*k,10*/uchar code en_l=0x00,0x08,0x08,0xF8,0x00,0x00,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00;/*l,11*/uchar code en_m=0x80,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x20,0x3F,0x20,0x00,0x3F,0x20,0x00,0x3F;/*m,12*/uchar code en_n=0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x3F,0x21,0x00,0x00,0x20,0x3F,0x20;/*n,13*/uchar code en_o=0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x00,0x1F,0x20,0x20,0x20,0x20,0x1F,0x00;/*o,14*/uchar code en_p=0x80,0x80,0x00,0x80,0x80,0x00,0x00,0x00,0x80,0xFF,0xA1,0x20,0x20,0x11,0x0E,0x00;/*p,15*/uchar code en_q=0x00,0x00,0x00,0x80,0x80,0x80,0x80,0x00,0x00,0x0E,0x11,0x20,0x20,0xA0,0xFF,0x80;/*q,16*/uchar code en_r=0x80,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x20,0x20,0x3F,0x21,0x20,0x00,0x01,0x00;/*r,17*/uchar code en_s=0x00,0x00,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x33,0x24,0x24,0x24,0x24,0x19,0x00;/*s,18*/uchar code en_t=0x00,0x80,0x80,0xE0,0x80,0x80,0x00,0x00,0x00,0x00,0x00,0x1F,0x20,0x20,0x00,0x00;/*t,19*/uchar code en_u=0x80,0x80,0x00,0x00,0x00,0x80,0x80,0x00,0x00,0x1F,0x20,0x20,0x20,0x10,0x3F,0x20;/*u,20*/uchar code en_v=0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x00,0x01,0x0E,0x30,0x08,0x06,0x01,0x00;/*v,21*/uchar code en_w=0x80,0x80,0x00,0x80,0x00,0x80,0x80,0x80,0x0F,0x30,0x0C,0x03,0x0C,0x30,0x0F,0x00;/*w,22*/uchar code en_x=0x00,0x80,0x80,0x00,0x80,0x80,0x80,0x00,0x00,0x20,0x31,0x2E,0x0E,0x31,0x20,0x00;/*x,23*/uchar code en_y=0x80,0x80,0x80,0x00,0x00,0x80,0x80,0x80,0x80,0x81,0x8E,0x70,0x18,0x06,0x01,0x00;/*y,24*/uchar code en_z=0x00,0x80,0x80,0x80,0x80,0x80,0x80,0x00,0x00,0x21,0x30,0x2C,0x22,0x21,0x30,0x00;/*z,25*/uchar code en_aa=0x00,0x00,0xC0,0x38,0xE0,0x00,0x00,0x00,0x20,0x3C,0x23,0x02,0x02,0x27,0x38,0x20;/*A,0*/uchar code en_bb=0x08,0xF8,0x88,0x88,0x88,0x70,0x00,0x00,0x20,0x3F,0x20,0x20,0x20,0x11,0x0E,0x00;/*B,1*/uchar code en_cc=0xC0,0x30,0x08,0x08,0x08,0x08,0x38,0x00,0x07,0x18,0x20,0x20,0x20,0x10,0x08,0x00;/*C,2*/uchar code en_dd=0x08,0xF8,0x08,0x08,0x08,0x10,0xE0,0x00,0x20,0x3F,0x20,0x20,0x20,0x10,0x0F,0x00;/*D,3*/uchar code en_ee=0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x20,0x23,0x20,0x18,0x00;/*E,4*/uchar code en_ff=0x08,0xF8,0x88,0x88,0xE8,0x08,0x10,0x00,0x20,0x3F,0x20,0x00,0x03,0x00,0x00,0x00;/*F,5*/uchar code en_gg=0xC0,0x30,0x08,0x08,0x08,0x38,0x00,0x00,0x07,0x18,0x20,0x20,0x22,0x1E,0x02,0x00;/*G,6*/uchar code en_hh=0x08,0xF8,0x08,0x00,0x00,0x08,0xF8,0x08,0x20,0x3F,0x21,0x01,0x01,0x21,0x3F,0x20;/*H,7*/uchar code en_ii=0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0x00,0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00;/*I,9*/uchar code en_jj=0x00,0x00,0x08,0x08,0xF8,0x08,0x08,0x00,0xC0,0x80,0x80,0x80,0x7F,0x00,0x00,0x00;/*J,10*/uchar code en_kk=0x08,0xF8,0x88,0xC0,0x28,0x18,0x08,0x00,0x20,0x3F,0x20,0x01,0x26,0x38,0x20,0x00;/*K,11*/uchar code en_ll=0x08,0xF8,0x08,0x00,0x00,0x00,0x00,0x00,0