uop.c

一些C51的源程序,KEY I2C LCD等.

/*
线路图
  89C51              T6963C
--------
        |     8
P1.0-1.7|=========== D0-7
        |
    P3.0|----------- /RD
    P3.1|----------- /WR
    P3.2|----------- C/D
        |         -- /CE
        |         |
        |        ---
    P3.3|----------- /RESET   
       |     VCC--- /HALT
--------      
*/


＃i nclude <reg8751.h>
＃i nclude <math.h>
＃i nclude <intrins.h>

sbit cd=P3^2;
sbit wr=P3^1;
sbit rd=P3^0;
sbit reset=P3^3;
sbit vee=P3^7;

sbit scl=P3^2;
sbit sda=P3^3;

unsigned int time;
unsigned char x,y;

/* 忙标志 */
#pragma disable
unsigned char busy(void) {
 unsigned char dat;
 cd=1;rd=1;wr=1;
 P0=0xff;
 rd=0;
 dat=P0;
 rd=1;
 return(dat);
}
/* 数据,指令读写判别 */
#pragma disable
void p1(void) {    
 while ((busy()&3)!=3) {}
}
/* 数据自动读判别 */
#pragma disable
void p2(void) {    
 while ((busy()&4)!=4) {}
} 
/* 数据自动写判别 */
#pragma disable
void p3(void) {    
 while ((busy()&8)!=8) {}
}
/* 控制指令 */
#pragma disable
void ctrl(unsigned char dat) {
 p1();
 cd=1;
 wr=0;
 P0=dat;
 wr=1;
}
/* 写数据 */
#pragma disable
void write(unsigned char dat) {
 p1();
 cd=0;
 wr=0;
 P0=dat;
 wr=1;
 cd=1;
}
/* 自动写 */
#pragma disable
void autowrite(unsigned char dat) {
 p3();
 cd=0;
 wr=0;
 P0=dat;
 wr=1;
 cd=1;
}
/* 读数据 */
#pragma disable
unsigned char read(void) {
 unsigned char dat;
 p1();
 cd=0;
 P0=0xff;
 rd=0;
 dat=P0;
 rd=1;
 cd=1;
 return(dat);
}
/* 自动读数据 */
#pragma disable
unsigned char autoread(void) {
 unsigned char dat;
 p2();
 cd=0;
 P0=0xff;
 rd=0;
 dat=P0;
 rd=1;
 cd=1;
 return(dat);
}
/* 显示图形和文本 */
#pragma disable
void disp(unsigned char d) { /*显示*/
 write(d);ctrl(0xc0);
}
/* 设定图形x,y值*/
#pragma disable
void ag(unsigned char x,unsigned char y) { /*地址*/
 unsigned int xy;
 xy=y;
 xy=xy*16+x+256;
 write(xy&0xff);write(xy/256);ctrl(0x24);
}
/* 设定文本x,y值 */
#pragma disable
void at(unsigned char x,unsigned char y) { /*地址*/
 write(y*16+x);write(0);ctrl(0x24);
}
/* 点亮一点 */
#pragma disable
void setb(unsigned char d) {
 ctrl(0xf8|d);
}
/* 清除一点*/
#pragma disable
void clrb(unsigned char d) {
 ctrl(0xf0|d);
}
/* x,y处显示光标 */
#pragma disable
void ab(unsigned char x,unsigned char y) {  /*光标*/
 ctrl(0x97); /*光标开*/
 write(x);write(y);ctrl(0x21);
}
/* 取消光标 */
#pragma disable
void noab(void) { 
 ctrl(0x9c); 
}

/* lcd初始化 */
void init(void) {
 unsigned int i;
 reset=0;
 reset=1;
 write(0x0);write(0);ctrl(0x40);  /*文本首址*/
 write(0x10);write(0x0);ctrl(0x41); /*文本区域*/
 write(0x0);write(0x1);ctrl(0x42); /*图形首址*/
    write(0x10);write(0x0);ctrl(0x43); /*图形区域*/
 ctrl(0x81); /*显示方式*/
 ctrl(0x90); /*显示开关*/
 ctrl(0xa0); /*光标形状*/
 at(0,0);
 ctrl(0xb0); /*自动写方式*/
 for (i=0;i<1280;i++) {
  autowrite(0x0);
 }
 ctrl(0xb2);/*结束自动写方式 */
 ctrl(0x9c);
}

 

 

 

void wait10(void) {
 time=0;
 while (time<10) {}
}

unsigned char temp;


unsigned char code asc16[]={
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,126,129,165,129,129,189,153,129,129,126,0,0,0,0,
0,0,126,255,219,255,255,195,231,255,255,126,0,0,0,0,
0,0,0,0,108,254,254,254,254,124,56,16,0,0,0,0,
0,0,0,0,16,56,124,254,124,56,16,0,0,0,0,0,
0,0,0,24,60,60,231,231,231,24,24,60,0,0,0,0,
0,0,0,24,60,126,255,255,126,24,24,60,0,0,0,0,
0,0,0,0,0,0,24,60,60,24,0,0,0,0,0,0,
255,255,255,255,255,255,231,195,195,231,255,255,255,255,255,255,
0,0,0,0,0,60,102,66,66,102,60,0,0,0,0,0,
255,255,255,255,255,195,153,189,189,153,195,255,255,255,255,255,
0,0,30,14,26,50,120,204,204,204,204,120,0,0,0,0,
0,0,60,102,102,102,102,60,24,126,24,24,0,0,0,0,
0,0,63,51,63,48,48,48,48,112,240,224,0,0,0,0,
0,0,127,99,127,99,99,99,99,103,231,230,192,0,0,0,
0,0,0,24,24,219,60,231,60,219,24,24,0,0,0,0,
0,128,192,224,240,248,254,248,240,224,192,128,0,0,0,0,
0,2,6,14,30,62,254,62,30,14,6,2,0,0,0,0,
0,0,24,60,126,24,24,24,126,60,24,0,0,0,0,0,
0,0,102,102,102,102,102,102,102,0,102,102,0,0,0,0,
0,0,127,219,219,219,123,27,27,27,27,27,0,0,0,0,
0,124,198,96,56,108,198,198,108,56,12,198,124,0,0,0,
0,0,0,0,0,0,0,0,254,254,254,254,0,0,0,0,
0,0,24,60,126,24,24,24,126,60,24,126,0,0,0,0,
0,0,24,60,126,24,24,24,24,24,24,24,0,0,0,0,
0,0,24,24,24,24,24,24,24,126,60,24,0,0,0,0,
0,0,0,0,0,24,12,254,12,24,0,0,0,0,0,0,
0,0,0,0,0,48,96,254,96,48,0,0,0,0,0,0,
0,0,0,0,0,0,192,192,192,254,0,0,0,0,0,0,
0,0,0,0,0,40,108,254,108,40,0,0,0,0,0,0,
0,0,0,0,16,56,56,124,124,254,254,0,0,0,0,0,
0,0,0,0,254,254,124,124,56,56,16,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,24,60,60,60,24,24,24,0,24,24,0,0,0,0,
0,102,102,102,36,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,108,108,254,108,108,108,254,108,108,0,0,0,0,
24,24,124,198,194,192,124,6,6,134,198,124,24,24,0,0,
0,0,0,0,194,198,12,24,48,96,198,134,0,0,0,0,
0,0,56,108,108,56,118,220,204,204,204,118,0,0,0,0,
0,48,48,48,96,0,0,0,0,0,0,0,0,0,0,0,
0,0,12,24,48,48,48,48,48,48,24,12,0,0,0,0,
0,0,48,24,12,12,12,12,12,12,24,48,0,0,0,0,
0,0,0,0,0,102,60,255,60,102,0,0,0,0,0,0,
0,0,0,0,0,24,24,126,24,24,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,24,24,24,48,0,0,0,
0,0,0,0,0,0,0,254,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,24,24,0,0,0,0,
0,0,0,0,2,6,12,24,48,96,192,128,0,0,0,0,
0,0,56,108,198,198,214,214,198,198,108,56,0,0,0,0,
0,0,24,56,120,24,24,24,24,24,24,126,0,0,0,0,
0,0,124,198,6,12,24,48,96,192,198,254,0,0,0,0,
0,0,124,198,6,6,60,6,6,6,198,124,0,0,0,0,
0,0,12,28,60,108,204,254,12,12,12,30,0,0,0,0,
0,0,254,192,192,192,252,6,6,6,198,124,0,0,0,0,
0,0,56,96,192,192,252,198,198,198,198,124,0,0,0,0,
0,0,254,198,6,6,12,24,48,48,48,48,0,0,0,0,
0,0,124,198,198,198,124,198,198,198,198,124,0,0,0,0,
0,0,124,198,198,198,126,6,6,6,12,120,0,0,0,0,
0,0,0,0,24,24,0,0,0,24,24,0,0,0,0,0,
0,0,0,0,24,24,0,0,0,24,24,48,0,0,0,0,
0,0,0,6,12,24,48,96,48,24,12,6,0,0,0,0,
0,0,0,0,0,126,0,0,126,0,0,0,0,0,0,0,
0,0,0,96,48,24,12,6,12,24,48,96,0,0,0,0,
0,0,124,198,198,12,24,24,24,0,24,24,0,0,0,0,
0,0,0,124,198,198,222,222,222,220,192,124,0,0,0,0,
0,0,16,56,108,198,198,254,198,198,198,198,0,0,0,0,
0,0,252,102,102,102,124,102,102,102,102,252,0,0,0,0,
0,0,60,102,194,192,192,192,192,194,102,60,0,0,0,0,
0,0,248,108,102,102,102,102,102,102,108,248,0,0,0,0,
0,0,254,102,98,104,120,104,96,98,102,254,0,0,0,0,
0,0,254,102,98,104,120,104,96,96,96,240,0,0,0,0,
0,0,60,102,194,192,192,222,198,198,102,58,0,0,0,0,
0,0,198,198,198,198,254,198,198,198,198,198,0,0,0,0,
0,0,60,24,24,24,24,24,24,24,24,60,0,0,0,0,
0,0,30,12,12,12,12,12,204,204,204,120,0,0,0,0,
0,0,230,102,102,108,120,120,108,102,102,230,0,0,0,0,
0,0,240,96,96,96,96,96,96,98,102,254,0,0,0,0,
0,0,198,238,254,254,214,198,198,198,198,198,0,0,0,0,
0,0,198,230,246,254,222,206,198,198,198,198,0,0,0,0,
0,0,124,198,198,198,198,198,198,198,198,124,0,0,0,0,
0,0,252,102,102,102,124,96,96,96,96,240,0,0,0,0,
0,0,124,198,198,198,198,198,198,214,222,124,12,14,0,0,
0,0,252,102,102,102,124,108,102,102,102,230,0,0,0,0,
0,0,124,198,198,96,56,12,6,198,198,124,0,0,0,0,
0,0,126,126,90,24,24,24,24,24,24,60,0,0,0,0,
0,0,198,198,198,198,198,198,198,198,198,124,0,0,0,0,
0,0,198,198,198,198,198,198,198,108,56,16,0,0,0,0,
0,0,198,198,198,198,214,214,214,254,238,108,0,0,0,0,
0,0,198,198,108,124,56,56,124,108,198,198,0,0,0,0,
0,0,102,102,102,102,60,24,24,24,24,60,0,0,0,0,
0,0,254,198,134,12,24,48,96,194,198,254,0,0,0,0,
0,0,60,48,48,48,48,48,48,48,48,60,0,0,0,0,
0,0,0,128,192,224,112,56,28,14,6,2,0,0,0,0,
0,0,60,12,12,12,12,12,12,12,12,60,0,0,0,0,
16,56,108,198,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,255,0,0,
48,48,24,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,120,12,124,204,204,204,118,0,0,0,0,
0,0,224,96,96,120,108,102,102,102,102,124,0,0,0,0,
0,0,0,0,0,124,198,192,192,192,198,124,0,0,0,0,
0,0,28,12,12,60,108,204,204,204,204,118,0,0,0,0,
0,0,0,0,0,124,198,254,192,192,198,124,0,0,0,0,
0,0,56,108,100,96,240,96,96,96,96,240,0,0,0,0,
0,0,0,0,0,118,204,204,204,204,204,124,12,204,120,0,
0,0,224,96,96,108,118,102,102,102,102,230,0,0,0,0,
0,0,24,24,0,56,24,24,24,24,24,60,0,0,0,0,
0,0,6,6,0,14,6,6,6,6,6,6,102,102,60,0,
0,0,224,96,96,102,108,120,120,108,102,230,0,0,0,0,
0,0,56,24,24,24,24,24,24,24,24,60,0,0,0,0,
0,0,0,0,0,236,254,214,214,214,214,198,0,0,0,0,
0,0,0,0,0,220,102,102,102,102,102,102,0,0,0,0,
0,0,0,0,0,124,198,198,198,198,198,124,0,0,0,0,
0,0,0,0,0,220,102,102,102,102,102,124,96,96,240,0,
0,0,0,0,0,118,204,204,204,204,204,124,12,12,30,0,
0,0,0,0,0,220,118,102,96,96,96,240,0,0,0,0,
0,0,0,0,0,124,198,96,56,12,198,124,0,0,0,0,
0,0,16,48,48,252,48,48,48,48,54,28,0,0,0,0,
0,0,0,0,0,204,204,204,204,204,204,118,0,0,0,0,
0,0,0,0,0,102,102,102,102,102,60,24,0,0,0,0,
0,0,0,0,0,198,198,214,214,214,254,108,0,0,0,0,
0,0,0,0,0,198,108,56,56,56,108,198,0,0,0,0,
0,0,0,0,0,198,198,198,198,198,198,126,6,12,248,0,
0,0,0,0,0,254,204,24,48,96,198,254,0,0,0,0,
0,0,14,24,24,24,112,24,24,24,24,14,0,0,0,0,
0,0,24,24,24,24,0,24,24,24,24,24,0,0,0,0,
0,0,112,24,24,24,14,24,24,24,24,112,0,0,0,0,
0,0,118,220,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,16,56,108,198,198,198,254,0,0,0,0,0
};

/* 显示8*16点阵英文字母,反白 */
void da(unsigned char n,bit un) {
 unsigned char i;
 unsigned int k=n;
 for (i=0;i<16;i++) {
  ag(x,y*8+i);
  if (un==0) disp(asc16[k*16+i]); else disp(255-asc16[k*16+i]);
 }
 if ((++x)>=16) {