單片機(jī)課程設(shè)計報告——液晶顯示(共20頁)

1、PAGE PAGE 21J I A N G S U U N I V E R S I T Y單片機(jī)原理(yunl)及應(yīng)用課程設(shè)計學(xué)院(xuyun)名稱： 計算機(jī) 專業(yè)(zhuny)班級： 通信0902 學(xué)生姓名： 柳健 學(xué)生學(xué)號： 3090601061 指導(dǎo)教師姓名： 熊 書 明 2012年 1 月點陣(din zhn)式液晶顯示屏的顯示程序設(shè)計一、設(shè)計(shj)目的1熟練掌握C51系統(tǒng)仿真開發(fā)(kif)系統(tǒng)的應(yīng)用。2加強(qiáng)單片機(jī)的綜合運用能力、提高單片機(jī)的軟件編程和調(diào)試能力，為以后的學(xué)習(xí)和開發(fā)工作打下良好基礎(chǔ)。3掌握的液晶的工作原理以及應(yīng)用設(shè)計。4掌握小系統(tǒng)開發(fā)設(shè)計的流程以及設(shè)計思路。二、設(shè)計方

2、案 實驗要求：1）從下到上滾動顯示：“江蘇大學(xué)計算機(jī)學(xué)院”然后交替顯示：“單片機(jī)課程設(shè)計”“液晶點陣顯示屏程序設(shè)計”“作者姓名、班級、學(xué)號” 2）能進(jìn)行正常的模擬量采樣值顯示（溫度、壓力、電位） 。 3) 改變字庫的內(nèi)容，顯示其它漢字。 4) 改變頁地址或列地址，使顯示的內(nèi)容改變位置。 5）其它功能（如左、右移，上下卷、顯示圖片等）。設(shè)計思路：由于實驗指導(dǎo)書中做過液晶顯示和模數(shù)轉(zhuǎn)換得實驗，根據(jù)兩個實驗的功能實現(xiàn)和流程原理進(jìn)行設(shè)計將程序分成三個模塊：主函數(shù)模塊main.c模數(shù)轉(zhuǎn)換模塊ADC.c液晶顯示模塊KS0108.c其中讓主函數(shù)模塊做一些初始化和函數(shù)調(diào)用工作，模數(shù)轉(zhuǎn)換模塊主要是將溫度，壓力，

3、點位的值轉(zhuǎn)化為數(shù)字量供液晶顯示用，液晶顯示模塊得到模數(shù)轉(zhuǎn)換模塊傳遞過來的數(shù)字量顯示到液晶面板上。程序流程圖：1系統(tǒng)主流程圖如下開始主函數(shù)模塊顯示模塊模數(shù)轉(zhuǎn)換模塊2主函數(shù)(hnsh)流程圖開始使能比較器1開中斷初始化系統(tǒng)時鐘鐘初始化定時器0初始化IO端口初始化SPI0使能片內(nèi)參考電壓使能DAC3 顯示(xinsh)模塊流程圖開始初始化LCD滾屏顯示江蘇大學(xué)計算機(jī)學(xué)院讀取數(shù)字量并顯示調(diào)用模數(shù)轉(zhuǎn)換得到值顯示課程設(shè)計題目、班級、姓名健值是否1.2.34 模數(shù)轉(zhuǎn)換模塊(m kui)流程圖開始讀取No和模擬量返回溫度返回點位結(jié)束返回壓力No=2？No=3？No=1？ 主要(zhyo)的源程序及注釋主函數(shù)(

4、hnsh)：#include c8051f020.h #include void Delay1us(unsigned char us)/延時uswhile (us) _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); -us;void SYSCLK_Init (void)/系統(tǒng)(xtng)時鐘初始化 int i; / delay counter OSCXCN = 0 x67; / start external oscillator with / 18.432MHz crystal for (i=0; i 256; i+) ; / Wait for osc.

5、 to start up while (!(OSCXCN & 0 x80) ; / Wait for crystal osc. to settle OSCICN = 0 x88; / select external oscillator as SYSCLK / source and enable missing clock / detector/OSCICN = 0 x07; /interal 16MHZ#define PRT0CF P0MDOUT#define PRT1CF P1MDOUT#define PRT2CF P2MDOUTvoid PORT_Init (void) /串口初始化 X

6、BR0 = 0 x07; / Enable SMBus, SPI0, and UART0 XBR1 = 0 x00; XBR2 = 0 x44; / Enable crossbar and weak pull-ups EMI0CF = 0 x27; EMI0TC = 0 x21; P74OUT = 0 xFF; P0MDOUT = 0 x15; P1MDOUT |= 0 x3C; /P1.2-P1.5推挽(tu wn)輸出 P1 &= 0 xc3;/P1.2-P1.5=0void SPI0_Init (void) /spi0初始化 SPI0CFG = 0 x07; / data sampled

7、 on 1st SCK rising edge / 8-bit data words SPI0CFG|=0 xC0;/CKPOL =1; SPI0CN = 0 x03; / Master mode; SPI enabled; flags / cleared SPI0CKR = SYSCLK/2/8000000-1; / SPI clock 8; / set Timer0 to overflow in 1ms TL0 = -SYSCLK/1000; TR0 = 1; / START Timer0 IE|= 0 x2; void Timer0_ISR (void) interrupt 1 /1ms

8、 TH0 = (-SYSCLK/1000) 8; TL0 = -SYSCLK/1000;if (Count1ms) Count1ms-;void Delay1ms(unsigned char T) /延時1msCount1ms=T;while (Count1ms);void Delay1s(unsigned char T) /延時1swhile (T)Delay1ms(200);Delay1ms(200);Delay1ms(200);Delay1ms(200);Delay1ms(200);T-;void TestLCD(void);/測試(csh)初始畫面char GetKeyValue(vo

9、id);/獲取(huq)鍵值void init_adc(void);unsigned int GetADCValue(char No);void Display (char *DispBuf,char ShowDot,char x,char y);void menulcd ();void zuoyouyi();void caiji ();void main (void) char i;unsigned int u;char Num;WDTCN = 0 xde;WDTCN = 0 xad; /關(guān)看門狗SYSCLK_Init (); /初始化時鐘(shzhng)Timer0_Init();/初始化

10、定時器PORT_Init (); /初始化IO口SPI0_Init (); /初始化SPI0 init_adc();CPT1CN|=0 x80;/使能比較(bjio)器1REF0CN = 0 x07; /使能片內(nèi)參考(cnko)電壓DAC0CN |= 0 x80;/使能DAC0DAC0H=0;DAC0L=0; EA=1;/開中斷 Num=0; menulcd ();u= GetADCValue(Num);/獲取按鍵值for (;)i=GetKeyValue();if (i3)Num=i;Delay1ms(100);if (Num=0)menulcd ();/按0顯示主菜單else if(Num

11、=4) TestLCD();/按4顯示開始畫面else if(Num=5)zuoyouyi();/按5漢字，圖畫左右移動else if(Num=6)caiji ();/按6采集溫度，電壓，壓力u = GetADCValue(Num);KS0108模塊(m kui)：#include c8051F020.h#include #include dianzhen.c/所有(suyu)用到的漢字，圖畫點陣#define LCD_DATA P2#define LCD_RS P30#define LCD_RW P31#define LCD_E P32#define LCD_CS1 P33#define L

12、CD_CS2 P34#define LCD_RST P35sbitHD7279_DAT=P17;sbitHD7279_CLK=P16;#define NOSELECT7279 P5 |= 0 x80/SPICS4(P57)=1#define SELECT7279 P5 &= (0 x80) /SPICS4(P57)=0;#define Set7279DAT HD7279_DAT=1#define Clr7279DAT HD7279_DAT=0#define Set7279CLK HD7279_CLK=1#define Clr7279CLK HD7279_CLK=0/7279模塊(m kui)v

13、oid Delay1ms(unsigned char T);void Delay1s(unsigned char T);void Delay1us(unsigned char T);void Send7279Byte(unsigned char ch)/發(fā)送char i;SELECT7279; /置CS低電平 Delay1us(50);/延時50for (i=0;i8;i+)if (ch&0 x80)/輸出7位到HD7279A的DATA端 Set7279DAT;elseClr7279DAT;Set7279CLK;/置CLK高電平 ch=ch1;/待發(fā)數(shù)據(jù)(shj)左移 Delay1us(8);

14、/延時8Clr7279CLK;/置CLK低電平 Delay1us(8);/延時50Clr7279DAT;/發(fā)送(f sn)完畢，DATA端置低，返回 unsigned char Receive7279Byte(void)/接收(jishu)unsigned char i,ch;ch=0;Set7279DAT;/DATA端置為高電平，輸入狀態(tài)Delay1us(50);/延時50for (i=0;i8;i+)Set7279CLK;/置CLK高電平Delay1us(8);/延時8ch=ch1;/接收數(shù)據(jù)左移1位if (HD7279_DAT)ch+=1;/接收1位數(shù)據(jù)Clr7279CLK;/置CLK低

15、電平Delay1us(8);/延時8Clr7279DAT;/接收完畢，DATA端重新置成低電平(輸出狀態(tài))return ch;unsigned char code BdSeg=0 x7e,0 x30,0 x6d,0 x79, / 0 1 2 3 0 x33,0 x5b,0 x5f,0 x70, / 4 5 6 7 0 x7f,0 x7b,0 x77,0 x1f, / 8 9 a b 0 x4e,0 x3d,0 x4f,0 x47, / c d e f 0 x00,0 x01; char GetKeyValue(void)/獲取鍵值char KeyValue;if (CPT1CN&0 x40)

16、return -1;/無鍵按下 Send7279Byte(0 x15);/發(fā)讀鍵盤指令 KeyValue=Receive7279Byte();NOSELECT7279; /置CS高電平 return KeyValue; /KS0108模塊(m kui)#define SELECTCS 0void LCD_WaitReady1(void) /判斷LCD控制(kngzh)芯片KS0108是否忙LCD_DATA=0 xff;_nop_();LCD_CS2=SELECTCS;LCD_RW=1;LCD_RS=0;LCD_E=1;while (LCD_DATA&0 x80);LCD_CS2=!SELECT

17、CS;void LCD_WaitReady2(void) /判斷(pndun)LCD控制芯片KS0108是否忙LCD_DATA=0 xff;_nop_();LCD_CS1=SELECTCS;LCD_RW=1;LCD_RS=0;LCD_E=1;while (LCD_DATA&0 x80);LCD_CS1=!SELECTCS;void LCD_WriteCommand1(char ch) /向LCD控制芯片KS0108發(fā)送控制命令LCD_WaitReady1();LCD_CS2=SELECTCS;LCD_RW=0;LCD_RS=0;LCD_DATA=ch;LCD_E=1;LCD_E=0;LCD_C

18、S2=!SELECTCS;void LCD_WriteCommand2(char ch)/向LCD控制芯片KS0108發(fā)送控制命令LCD_WaitReady2();LCD_CS1=SELECTCS;LCD_RW=0;LCD_RS=0;LCD_DATA=ch;LCD_E=1;LCD_E=0;LCD_CS1=!SELECTCS;void LCD_WriteData1(char ch)/向LCD控制(kngzh)芯片KS0108發(fā)送數(shù)據(jù)命令LCD_WaitReady1();LCD_CS2=SELECTCS;LCD_RW=0;LCD_RS=1;LCD_DATA=ch;LCD_E=1;LCD_E=0;L

19、CD_CS2=!SELECTCS;void LCD_WriteData2(char ch)/向LCD控制芯片(xn pin)KS0108發(fā)送數(shù)據(jù)命令LCD_WaitReady2();LCD_CS1=SELECTCS;LCD_RW=0;LCD_RS=1;LCD_DATA=ch;LCD_E=1;LCD_E=0;LCD_CS1=!SELECTCS;void LCD_WriteZM(char x,char y,char *Dot) /顯示(xinsh)16*16點陣漢字 char i;for (i=0;i16;i+)if (x+i%8)64)LCD_WriteCommand1(0 xB8+y+i/8)

20、;LCD_WriteCommand1(0 x40+x+i%8);LCD_WriteData1(Doti);elseLCD_WriteCommand2(0 xB8+y+i/8);LCD_WriteCommand2(0 x40+x-64+i%8);LCD_WriteData2(Doti);void LCD_WriteHZ(char x,char y,char *Dot) /顯示16*16點陣漢字char i;for (i=0;i32;i+)if (x+i%16)64)LCD_WriteCommand1(0 xB8+y+i/16);LCD_WriteCommand1(0 x40+x+i%16);LC

21、D_WriteData1(Doti);elseLCD_WriteCommand2(0 xB8+y+i/16);LCD_WriteCommand2(0 x40+x-64+i%16);LCD_WriteData2(Doti);void LCD_WriteHZcircle(char x,char y,char *Dot) /顯示循環(huán)(xnhun)漢字char i;for (i=0;i32;i+)if (x+i%16)63&(x+i%16)=127)LCD_WriteCommand2(0 xB8+y+i/16);LCD_WriteCommand2(0 x40+x-64+i%16);LCD_WriteD

22、ata2(Doti);elseLCD_WriteCommand1(0 xB8+y+i/16);LCD_WriteCommand1(0 x40+(x+i%16)%128);LCD_WriteData1(Doti); void InitLCD(void) /初始化LCDchar i,j;LCD_RST=0;Delay1ms(1);LCD_RST=1; LCD_WriteCommand1(0 xc0);LCD_WriteCommand2(0 xc0);LCD_WriteCommand1(0 x3f); /開顯示(xinsh)LCD_WriteCommand2(0 x3f);for (j=0;j8;j

23、+)/清屏LCD_WriteCommand1(0 xB8+j);/清左半屏LCD_WriteCommand1(0 x40);for (i=0;i64;i+)LCD_WriteData1(0 x00); LCD_WriteCommand2(0 xB8+j);/清右半屏LCD_WriteCommand2(0 x40);for (i=0;i64;i+)LCD_WriteData2(0 x00);void DispBmp(char *buf,int n)/顯示(xinsh)一幅位圖int i,j;for (j=0;j8;j+)/顯示(xinsh)位圖LCD_WriteCommand1(0 xB8+j+

24、n);LCD_WriteCommand1(0 x40);for (i=0;i64;i+)LCD_WriteData1(buf(j*2)*64+i);LCD_WriteCommand2(0 xB8+j+n);LCD_WriteCommand2(0 x40);for (i=0;i64;i+)LCD_WriteData2(buf(j*2+1)*64+i);void DispBmp1(char *buf,int n,int m)/顯示(xinsh)一幅位圖/128*16,n為頁值，m為列值int i,j;for (j=0;j2;j+)/顯示位圖if(m=63) LCD_WriteCommand1(0

25、xB8+j+n);LCD_WriteCommand1(0 x40);for(i=128-m;i=127;i+) LCD_WriteData1(bufi+128*j);for(i=0;i=63-m;i+) LCD_WriteData1(bufi+128*j);LCD_WriteCommand2(0 xB8+j+n);LCD_WriteCommand2(0 x40);for(i=64-m;i=127-m;i+)LCD_WriteData2(buf128*j+i);else LCD_WriteCommand2(0 xB8+j+n);LCD_WriteCommand2(0 x40);for(i=192

26、-m;i=127;i+)LCD_WriteData2(buf128*j+i);for(i=0;i=127-m;i+) LCD_WriteData2(buf128*j+i);LCD_WriteCommand1(0 xB8+j+n);LCD_WriteCommand1(0 x40);for(i=128-m;i=191-m;i+)LCD_WriteData1(bufi+128*j);void Display (char *DispBuf,char ShowDot,char x,char y) /液晶屏顯示(xinsh)溫度、電壓，壓力值char i,ch,j=-16;ShowDot-;for (i=

27、2;i6;i+)j+=16;ch=DispBufi;switch(ch)case 0: LCD_WriteZM(x+j,y,led0); break; case 1: LCD_WriteZM(x+j,y,led1); break;case 2: LCD_WriteZM(x+j,y,led2); break;case 3: LCD_WriteZM(x+j,y,led3); break;case 4: LCD_WriteZM(x+j,y,led4); break;case 5: LCD_WriteZM(x+j,y,led5); break;case 6: LCD_WriteZM(x+j,y,led

28、6); break;case 7: LCD_WriteZM(x+j,y,led7); break;case 8: LCD_WriteZM(x+j,y,led8); break;case 9: LCD_WriteZM(x+j,y,led9); break;default: LCD_WriteZM(x+j,y,led); break;if(i=ShowDot)LCD_WriteZM(x+j+8,y,Dot);unsigned int GetADCValue(char No);char GetKeyValue(void);void menulcd () /顯示(xinsh)菜單InitLCD();D

29、ispBmp(menu,0);void TestLCD(void) /開頭文字(wnz)的顯示char i;InitLCD();DispBmp(ss,1);/江蘇大學(xué)(dxu)計算機(jī)學(xué)院 Delay1s(0.5);for (i=0;i64;i+)Delay1ms(100);LCD_WriteCommand1(0 xc0+i%64);/設(shè)置起始行,實現(xiàn)向上滾動LCD_WriteCommand2(0 xc0+i%64);Delay1s(2); InitLCD();DispBmp(ss1,1);/單片機(jī)課程設(shè)計Delay1s(2); InitLCD();DispBmp(ss2,1);/液晶點陣顯示屏

30、程序設(shè)計Delay1s(2);InitLCD();DispBmp(ss3,1);/作者：柳健 班級：計算機(jī)0902 學(xué)號：3090601061Delay1s(2);void zuoyouyi()/漢字，圖畫左右移動char i,j,k;k=1; for (j=0;j8;j+)/漢字從左向右滾動for(i=0;i=0;j-)/漢字(Hnz)從右向左滾動for(i=0;i=0)&(i=3)/如果按鍵大于3，則不讀入鍵值No=i;Delay1ms(250);buf0= No;buf1= ;buf2=(w%10000)/1000;buf3=(w%1000)/100;buf4=(w%100)/10;bu

31、f5=(w%10);if (No=1)InitLCD();DispBmp(tem,1);/按1采集到溫度Display(buf,4,50,4);else if (No=2)InitLCD();DispBmp(volte,1);/按2采集到電壓Display(buf,3,50,4); else if (No=3)InitLCD();DispBmp(pres,1);/按3采集(cij)到壓力Display(buf,4,50,4);else break;/按0回到主菜單(ci dn) w = GetADCValue(No);ADC模塊(m kui)：#include c8051F020.h#incl

32、ude /*壓力應(yīng)變片ADC試驗運行此程序,壓力值將在數(shù)碼管上顯示.用手觸摸應(yīng)變片觀察壓力變化.*/#define MUX_TEMP0 x08#define MUX_VOLT0 x01#define MUX_PRESS0 x02unsigned int idata Temp, Press, Volt;unsigned char idata mux_select;sfr16 ADC0 = 0 xbe; / ADC0 datavoid init_adc(void)ADC0CN = 0 x81; / ADC0 enabled; normal tracking / mode; ADC0 convers

33、ions are initiated / on write to AD0BUSY; ADC0 data is / left-justifiedREF0CN = 0 x07; / enable temp sensor, on-chip VREF, / and VREF output buffermux_select = MUX_TEMP; / CPU on-chip temp sensorAMX0SL = MUX_TEMP; ADC0CF = (SYSCLK/2500000) 3; / ADC conversion clock = 2.5MHz/ADC0CF |= 0 x01; / PGA ga

34、in = 2EIE2 &= 0 x02; / disable ADC0 EOC interruptEIE1 &= 0 x04; / disable ADC0 window compare interrupt/ On-chip temperature/ AN1. 電位器/ AN2. 應(yīng)變片void read_analog_inputs(void)long temp_long; AD0INT = 0; / clear conversion complete indicator AD0BUSY = 1; / initiate conversion while (AD0INT = 0); / wait

35、 for conversion completeswitch (mux_select)case MUX_TEMP: temp_long = ADC0 - 42380/2; temp_long = (temp_long * 200L) / 156;Temp=temp_long;AMX0SL = MUX_VOLT;/ Select AIN1 for next readmux_select = MUX_VOLT;break; case MUX_VOLT:temp_long = ADC0;Volt = 24*temp_long/655;AMX0SL = MUX_PRESS;/ Select on-ch

36、ip temp sensormux_select = MUX_PRESS;break; case MUX_PRESS:temp_long = ADC0;temp_long = 24*temp_long/655;Press = temp_long; AMX0SL = MUX_TEMP; mux_select = MUX_TEMP;break;default:AMX0SL = MUX_TEMP;mux_select = MUX_TEMP;break; unsigned int GetADCValue(char No)/采集(cij)數(shù)據(jù)read_analog_inputs();read_analog_inputs();read_analog_inputs();switch (No)case 1:ret