测频率膜厚仪程序.doc

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1、 #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 shu

2、1=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) int

3、errupt 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=TL

4、1=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_c

5、om(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);de

6、lay(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(h

7、oud/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()

8、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

9、 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);

10、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);v

11、oid 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 intsb

12、it 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_Che

13、ck()&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_Co

14、mmand(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)Sho

15、wString(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)u

16、char 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( );Lc

17、d_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);f

18、or(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;

19、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);de

20、lay(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();#

21、include #define uchar unsigned char#define uint unsigned intsbit RS=P25; /数据、命令选择，1：数据，0：命令sbit RW=P26; /读写控制，1：读，0：写sbit LCD_E=P27;/E端，使能端HLuint i,j;uchar tab1=6000.0KHz; /数组字符串uchar tab2=0000.0nm;uchar num;void delay(uint x)for (i=x;i0;i-)for(j=120;j0;j-);void write_cmd(uchar cmd) /命令子程序RS=0;RW=0;

22、LCD_E=0;P0=cmd;LCD_E=1;delay(5);LCD_E=0; void write_data(uchar lcd_data) /写数据子程序RS=1;RW=0;LCD_E=0;P0=lcd_data;LCD_E=1;delay(5);LCD_E=0; void init() /初始化子程序write_cmd(0x38);/显示模式DL18位数据，N1两行显示 F0（5*7点阵）write_cmd(0x08);/关闭显示write_cmd(0x01);/清屏write_cmd(0x06);/读写操作后，AC自动增1write_cmd(0x0f);/开显示，开光标，开闪烁void main()init();for (num=0;num16;num+)write_data(tab1num);delay(200);write_cmd(0x80+0x40); /换行命令for (num=0;num13;num+)write_data(tab2num);delay(200);while(1);