测频率膜厚仪程序.doc

#include #include#define uint unsigned int #define uchar unsigned char signed long count=0; signed long houd,fq;signed long k1,k2,k3;int i=0, x=0;sbit p2_4=p24; sbit rs=p25; sbit rw=p26; sbit e=p27; /数字ascii码放在数组中 /unsigned int shu=0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39; unsigned int shu1=0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39; void delay(int count) /延时 int p; while(count-) for(p=0;p110;p+); void write_com(unsigned int n) /写指令 rs=0; p1=n; delay(5); e=1; delay(5); e=0; void write_data(unsigned char t) /写数据 rs=1; p1=t; delay(5); e=1; delay(5); e=0; void time1_int(void) interrupt 3 th1=tl1=0; tr1=1; x+; void time0_int(void) interrupt 1 th0=(65535-50000)/256; /装初值,定时50ms tl0=(65535-50000)%256; i+; if(i=20) /1s时间已到 i=0; tr1=0; /关闭计数器1 count=(65536*x+256*th1+tl1)*1000; x=0; if(k1=1)fq=2.65; else if(k2=1)fq=2.7; else if(k3=1) fq=3.97; houd=0.123*(6000000-count)/fq; th1=tl1=0; /重新装初值 tr1=1; /重新启动计数器器 void show() write_com(0x85);write_data(shucount/100000); delay(5); /显示十万位 write_com(0x86);write_data(shu(count/10000)%10);delay(5); /显示万位 write_com(0x87);write_data(shu(count/1000)%10);delay(5); /显示千位 write_com(0x88); write_data(shu(count/100)%10);delay(5); /显示百位 write_com(0x89);write_data(shu(count/10)%10);delay(5); /显示十位 write_com(0x8a);write_data(shucount%10);delay(5); /显示个位 write_com(0x83);write_data(0x66);delay(5); /显示频率表示的字符f write_com(0x84);write_data(0x3d);delay(5); /显示字符= write_com(0x8b);write_data(0x48);delay(5); /显示字母h write_com(0x8c);write_data(0x7a);delay(5); /显示字母z write_com(0xc5);write_data(shu1houd/100000); delay(5); /显示十万位 write_com(0xc6);write_data(shu1(houd/10000)%10);delay(5); /显示万位 write_com(0xc7);write_data(shu1(houd/1000)%10);delay(5); /显示千位 write_com(0xc8); write_data(shu1(houd/100)%10);delay(5); /显示百位 write_com(0xc9);write_data(shu1(houd/10)%10);delay(5); /显示十位 write_com(0xca);write_data(shu1houd%10);delay(5); /显示个位 write_com(0xc3);write_data(0x68);delay(5); /显示频率表示的字符hwrite_com(0xc4);write_data(0x3d);delay(5); /显示字符= write_com(0xcb);write_data(0x6e);delay(5); /显示字母n write_com(0xcc);write_data(0x6d);delay(5); /显示字母m void main() tmod=0x51; /t1计数、t2定时，且都工作在方式1 th1=0x00;tl1=0x00; th0=(65535-50000)/256; /装初值,定时50ms tl0=(65535-50000)%256; ea=1; /开总中断 et0=1;et1=1; /中断允许 tr0=1;tr1=1; /启动定时器 rw=0; e=0; write_com(0x01); /显示清零，数据指针清零 write_com(0x38); /设置16x2显示5x7点阵，8位数据口 write_com(0x0c); /设置开显示，显示光标且闪烁 write_com(0x06); /写一个字符后地址指针加1 while(1) show(); delay(5); #include #define uchar unsigned charsbit rs=p25;sbit rw=p26;sbit e=p27;uchar busyc,line;uchar code table116= freq= 6000.0 khz;uchar code table216= houd= 0000.0 nm ;void delay(uchar n) uchar x,y; for(x=n;x0;x-) for(y=110;y0;y-);void busy(uchar busyc)rs=0;rw=1;e=1;delay(1);busyc=p1;e=0;void write_command(uchar command)while(busyc);/判断lcd是否忙碌rs=0;rw=0;e=1;p1=command;delay(10);e=0;void write_date(uchar date)while(busyc);/判断lcd是否忙碌rs=1;rw=0;e=1;p1=date;delay(10);e=0;void init()e=0;write_command(0x38);delay(15);write_command(0x0c);write_command(0x06);write_command(0x01);void display()uchar i;write_command(0x80);/设置显示位置(第一行开头)for(i=0;i16;i+)write_date(table1i);/显示字符write_command(0xc0);/ 设置显示位置（第二行开头）for(i=0;i16;i+)write_date(table2i);/ 显示字符void main(void)init(); / 初始化lcddelay(20);while(1)display();#include#include#define uchar unsigned char#define uint unsigned intsbit rs=p25;sbit rw=p26;sbit en=p27;uchar str=f=6000.0khz,h=0000.0nm;/延时void delayms(uint ms)uchar i;while(ms-) for(i=0;i120;i+);/忙检查uchar busy_check()uchar lcd_status;rs=0;/寄存器选择rw=1;/读状态寄存器en=1;/开始读delayms(1);lcd_status=p1;en=0;return lcd_status;/写lcd命令void write_lcd_command(uchar cmd)while(busy_check()&0x80)=0x80);/忙等待rs=0;/选择命令寄存器rw=0;/写en=0;p1=cmd;en=1;delayms(1);en=0;/发送数据void write_lcd_data(uchar dat)while(busy_check()&0x80)=0x80);/忙等待rs=1;rw=0;en=0;p1=dat;en=1;delayms(1);en=0;/lcd初始化void initialize_lcd()write_lcd_command(0x38);delayms(1);write_lcd_command(0x01);delayms(1);/清屏write_lcd_command(0x06);delayms(1);/字符进入模式：屏幕不动，字符后移write_lcd_command(0x0c);delayms(1);/显示开，光标关/显示字符串void showstring(uchar x,uchar y,uchar *str)uchar i=0;if(y=0) write_lcd_command(0x80|x);/设置显示起始位置if(y=1) write_lcd_command(0xc0|x);for(i=0;i16;i+)/输出字符串write_lcd_data(stri);void main()initialize_lcd();while(1)showstring(0,0,str);showstring(0,1,str);#include #include#define uint unsigned int #define uchar unsigned char sbit lcd_rs=p25; sbit lcd_rw=p26; sbit lcd_en=p27; uchar code disa = 6000.0 khzz ;uchar code disb = 0000.0nm ;void delaynop( )_nop_( );_nop_( );_nop_( );_nop_( );_nop_( );void delay (uint ms)uchar t;while(ms-) for(t=0; t120;t+);bit lcd_busy( )bit result;lcd_rs=0;lcd_rw=1;lcd_en=1;delaynop( );result=(bit)(p0&0x80);lcd_en=0;return(result);void lcd_write(bit start,uchar in_data)while(lcd_busy();if(start=0)lcd_rs=0;elselcd_rs=1;lcd_rw=0;lcd_en=0;delaynop( );p0=in_data;lcd_en=1;delaynop( );lcd_en=0;delaynop( );void lcd_init( )delay(15);lcd_write(0,0x28);delay(5);lcd_write(0,0x28);delay(5);lcd_write(0,0x28);delay(5);lcd_write(0,0x0c);delay(5);lcd_write(0,0x06);delay(5);lcd_write(0,0x01);delay(25);void lcd_pos(uchar pos)lcd_write(0,pos|0x80);void main( )uchar m;lcd_init( );lcd_pos(0x00);for(m=0;m16;m+)lcd_write(1,disam);delay(150);lcd_pos(0x40);for(m=0;m16;m+)lcd_write(1,disbm);delay(150);while(1);#include #define uchar unsigned charsbit rs=p25;sbit rw=p26;sbit e=p27;uchar busyc,line;uchar code table116= 6000 khzz ;uchar code table216= 0000nm ;void delay(uchar n) uchar x,y; for(x=n;x0;x-) for(y=110;y0;y-);void busy(uchar busyc)rs=0;rw=1;e=1;delay(1);busyc=p0;e=0;void write_command(uchar command)while(busyc);/判断lcd是否忙碌rs=0;rw=0;e=1;p0=command;delay(10);e=0;void write_date(uchar date)while(busyc);/判断lcd是否忙碌rs=1;rw=0;e=1;p0=date;delay(10);e=0;void init()e=0;write_command(0x38);delay(15);write_command(0x0c);write_command(0x06);write_command(0x01);void display()uchar i;write_command(0x80);/设置显示位置(第一行开头)for(i=0;i16;i+)write_date(table1i);/显示字符write_command(0xc0);/ 设置显示位置（第二行开头）for(i=0;i16;i+)write_date(table2i);/ 显示字符void main(void)init(); / 初始化lcddelay(20);while(1)display();#include #define uchar unsigned char#define uint unsigned intsbit rs=p25; /数据、命令选择，