单片机系统搭建及其编程.doc

课本C语言程序1. 图2.10 DA的转换器与单片机的连接/* 文件名：main.c* 芯片：AT89C52* 频率：12MHz* 功能描述：8位DA转换器DAC0832，双缓冲控制*/#include #include #defineucharunsigned char/*DAC0832地址，双缓冲所以有两级地址*/#defineDAC_0832_CSXBYTE0xFDFF/第一级#defineDAC_0832_XFERXBYTE0xFEFF/第二级/函数原型申明void Delay100ms(void);/* 函数名：main* 功能描述：main主程序* 输入参数：无 * 返回值：无 */void main(void)uchar i;while (1)for (i=0x00; i0; i-)for(j=20; j0; j-)for(k=130; k0; k-);2. 图2.20 ADC0808与单片机的中断接口方式/* * 文件名：main.c * 芯片：AT89C52 * 频率：12MHz * 功能描述：8位AD转换器ADC0808 */#include #include #defineucharunsigned char/*ADC0808地址*/#defineADC_0808XBYTE0xFF80/函数原型申明void InitInt0(void);void Delay10ms(void);/* * 函数名：main * 功能描述：main主程序 * 输入参数：无 * 返回值：无 */void main(void)InitInt0();while (1)ADC_0808 = 0x00;/启动AD转换Delay10ms();/显示延时/* * 函数名：InitInt0 * 功能描述：外部中断0初始化 * 输入参数：无 * 返回值：无 */void InitInt0(void)IT0 = 1;/边沿触发EX0 = 1;EA = 1;/* * 函数名：Int0 * 功能描述：外部中断0服务程序 * 输入参数：无 * 返回值：无 */void Int0(void) interrupt 0uchar result;result = ADC_0808;/读AD转换结果 P1 = result;/数字量送显示/* * 函数名：Delay10ms * 功能描述：10ms延时 * 输入参数：无 * 返回值：无 */void Delay10ms(void)uchar i, j, k; for(i=1; i0; i-) for(j=38; j0; j-) for(k=130; k0; k-);3. 图2.21 ADC0808与单片机的查询接口电路#include #include #define uchar unsigned char#define uint unsigned intuint addr = 0x7FF0;#define ADC_0808 XBYTEaddrsbit ADC_EOC = P17;void Delay500ms(void);void main() uchar result; uchar i, j; while (1) for (i=0; i256; i+) for (j=0; j 0x7FF7) addr = 0x7FF0; Delay500ms(); void Delay500ms(void) uchar i, j, k; for(i=23; i0; i-) for(j=152; j0; j-) for(k=70; k0; k-);4. 图2.12 12位DA转换器DAC1210与单片机的接口#include #include #define uint unsigned int#define uchar unsigned char#define DAC_1210_HIGHT8 XBYTE0x83FF #define DAC_1210_LOW4 XBYTE0x80FF void Delay5ms(void);void main(void)uint i; while (1) for (i=0x0000; i 4; DAC_1210_LOW4 = i & 0x000F; Delay5ms(); void Delay5ms(void) uchar i, j; for(i=19; i0; i-) for(j=130; j0; j-);5. 图2.25 AD1674与单片机接口电路/* * 文件名：main.c * 芯片：AT89C52 * 频率：12MHz * 功能描述：12位AD转换器AD1674 */#include #include #defineucharunsigned char/*AD1674地址*/#defineAD_1674XBYTE0x00FC/*AD1674的高8位数据地址*/#defineAD_1674_HIGHT8XBYTE0x00FE/*AD1674的低4位数据地址*/#defineAD_1674_LOW4XBYTE0x00FF/AD1674的STS引脚，转换结束STS输出一个低电平sbit STS = P10;/函数原型申明void Delay10ms(void);/* * 函数名：main * 功能描述：main主程序 * 输入参数：无 * 返回值：无 */void main(void)while (1)AD_1674 = 0x00;/启动AD转换while (STS);/等待AD转换结束P2 = AD_1674_HIGHT8;/读取高8位数字量并输出显示P1 = AD_1674_LOW4;/读取低4位数字量并输出显示Delay10ms();/显示延时/* * 函数名：Delay10ms * 功能描述：10ms延时 * 输入参数：无 * 返回值：无 */void Delay10ms(void)uchar i, j, k; for(i=1; i0; i-) for(j=38; j0; j-) for(k=130; k0; k-);6. 图3.4 操作功能键硬件连接图/* * 文件名 main.c * 芯片：AT89C52 * 主频：12MHZ * 功能描述：8键盘识别，利用中断，节省机时 */#include #include /预定义8155控制口和PA口#define CON_8155 XBYTE0XEF00 #define PA_8155 XBYTE0XEF01/* * 模块：中断服务子程序 * 功能：判断按键 * 输入参数：无 * 返回值：无 */ void main() IT0=1; /选择边沿触发方式EX0=1; /允许外部中断0EA=1; /指向键处理中断服务程序CON_8155=0x00; /8155初始化,PA口输入while(1); /* * 函数名：Key * 功能：外部中断0服务子程序,判断按键 * 输入参数：无 * 返回值：无 */void Key() interrupt 0 unsigned char i, j, k, temp; i=0x08; /设循环次数 j=0x00;/计数寄存器清零 k=PA_8155;/读入状态字 /移位判断 while(i-)0) temp=k&0x01; if(temp=0) break; j+; k=1; switch(j)/转到相应功能键入口 /分别转到8个功能键响应入口地址 case 0: P1=0xFE; break;case 1:P1=0xFD; break;case 2:P1=0xFB; break;case 3:P1=0xF7; break;case 4:P1=0xEF; break;case 5:P1=0xDF; break;case 6:P1=0xBF; break;case 7: P1=0x7F; break; 7. 图3.5 用8255A接口的4X8键盘矩阵/* * 文件名：4x8矩阵键盘.c * 芯片：Ateml89C52 * 主频：12MHz * 功能描述：4x8矩阵键盘扫描 */#include#include#include #define uint unsigned int#define uchar unsigned char/*8255各IO口和控制字地址*/#define PA_8255 XBYTE0x8000 #define PB_8255 XBYTE0x8100 #define PC_8255 XBYTE0x8200 #define CON_8255 XBYTE0x8300 /行列值uchar rowVal=0x00;uchar lineVal=0x00;/函数原型声明void KeyScan(void);void Delay10ms(void);/* * 函数名：main * 功能描述：main主函数 * 输入参数：无 * 返回值：无 */void main()uchar temp;uchar keyVal;CON_8255 = 0x90;/PA口工作于方式0，输入；PB口工作于方式0，输出while(1)P1 = 0x00;/行的送低电平temp = PA_8255;/读入列if(temp != 0xFF) Delay10ms();/消抖P1 = 0x00;temp = PA_8255;if(temp != 0xFF)rowVal = 0x00; /行列值清零lineVal = 0x00;KeyScan();keyVal=lineVal+rowVal;PB_8255=keyVal;/显示键值while(PA_8255!=0xFF);/等待按键释放/* * 函数名：KeyScan * 功能描述：有键按下时逐行扫描 * 输入参数：无 * 返回值：无 */void KeyScan()uchar temp, i, j;uchar rowShift = 0xFE;/逐行扫描for(i=0; i4; i+)P1 = rowShift;temp = PA_8255;if(temp != 0xFF)/此行有键按下/求列值for(j=0; j0; i-) for(j=38; j0; j-) for(k=130; k0; k-);8. 图3.34 6位动态显示电路/* * 文件名：LED动态扫描.c * 芯片：Ateml89C52 * 主频：12MHz * 功能描述：LED动态扫描 */#include #include #include #defineuintunsigned int#defineucharunsigned char/*8155控制字和PA,PB口地址定义*/#defineCON_8155XBYTE0x7F00#definePA_8155XBYTE0x7F01#definePB_8155XBYTE0x7F02/数码管字型定义uchar LEDDATA= 0x3F,/*0*/ 0x06,/*1*/ 0x5B,/*2*/ 0x4F,/*3*/ 0x66,/*4*/ 0x6D,/*5*/ 0x7D,/*6*/ 0x07,/*7*/ 0x7F,/*8*/ 0x6F,/*9*/ 0x77,/*A*/ 0x7C,/*b*/ 0x39,/*C*/ 0x5E,/*d*/ 0x79,/*E*/ 0x71,/*F*/ ;/动态扫描时间间隔50ms标志位bit g_delay50ms = 0;/函数原型声明void Delay1ms(void);void Delay50ms(void);/* * 函数名：main * 功能描述：动态显示数字 * 输入参数：无 * 返回值：无 */void main()uchar i, selectLED;IT0 = 1;/外部中断0,边沿触发EX0 = 1;EA = 1;CON_8155 = 0x03;/PA口、PB口基本输入输出selectLED = 0x20;/LED位选，从左到右扫描while(1)for(i=1; i0; i-) for(j=142; j0; j-) for(k=2; k0; k-);/* * 函数名：Delay50ms * 功能描述：50ms延时 * 输入参数：无 * 返回值：无 */void Delay50ms(void) unsigned char a,b; for(b=173;b0;b-) for(a=143;a0;a-);9. 图3.36 具有串行接口的动态显示电路/* * 文件名：串行接口的LED动态扫描.c * 芯片：Ateml89C52 * 主频：12MHz * 功能描述：串行接口的LED动态扫描 */#include #include#defineuintunsigned int#defineucharunsigned char/数码管字型定义uchar LEDDATA= 0x3F,/*0*/ 0x06,/*1*/ 0x5B,/*2*/ 0x4F,/*3*/ 0x66,/*4*/ 0x6D,/*5*/ 0x7D,/*6*/ 0x07,/*7*/ 0x7F,/*8*/ 0x6F,/*9*/ 0x77,/*A*/ 0x7C,/*b*/ 0x39,/*C*/ 0x5E,/*d*/ 0x79,/*E*/ 0x71,/*F*/ ;/动态扫描时间间隔50ms标志位bit g_delay50ms = 0;/函数声明void Delay1ms(void);void Delay50ms(void);/* * 函数名：main * 功能描述：串行接口的动态显示数字 * 输入参数：无 * 返回值：无 */void main()uchar i=1;/LEDDATAi,数码管显示uchar selectLED=0x01;/LED位选,从右到左扫描IT0 = 1;/外部中断0,边沿触发EX0 = 1;EA = 1;SCON=0x00; /串口工作方式0while(1)SBUF=LEDDATAi;/输出显示码while(!TI);TI=0;P1=selectLED;/送扫描位选信号/准备显示下一位i+;if(i=7)i=1;selectLED=_crol_(selectLED,1);/指向下一位数if(selectLED=0x40)selectLED=0x01;if (g_delay50ms)Delay50ms();/动态扫描时间间隔50mselseDelay1ms();/动态扫描时间间隔1msP1=0x00;/消隐/* * 函数名：Int0 * 功能描述：外部中断0服务程序，响应时间切换按键 * 输入参数：无 * 返回值：无 */void Int0(void) interrupt 0g_delay50ms = !g_delay50ms;/* * 函数名：Delay1ms * 功能描述：1ms延时 * 输入参数：无 * 返回值：无 */void Delay1ms(void)uchar i, j, k; for(i=1; i0; i-) for(j=142; j0; j-) for(k=2; k0; k-);/* * 函数名：Delay50ms * 功能描述：50ms延时 * 输入参数：无 * 返回值：无 */void Delay50ms(void) unsigned char a,b; for(b=173;b0;b-) for(a=143;a0;a-);11. 图3.37 用锁存器连接的6位静态显示电路 /* * 文件名：LED静态扫描.c * 芯片：Ateml89C52 * 主频：12MHz * 功能描述：LED静态扫描 */#include #defineuintunsigned int#defineucharunsigned char/数码管字型定义uchar LEDDATA= 0x3F,/*0*/ 0x06,/*1*/ 0x5B,/*2*/ 0x4F,/*3*/ 0x66,/*4*/ 0x6D,/*5*/ 0x7D,/*6*/ 0x07,/*7*/ 0x7F,/*8*/ 0x6F,/*9*/ 0x77,/*A*/ 0x7C,/*b*/ 0x39,/*C*/ 0x5E,/*d*/ 0x79,/*E*/ 0x71,/*F*/ ;/* * 函数名：main * 功能描述：静态显示数字 * 输入参数：无 * 返回值：无 */void main()uchar temp,i;temp=0x40;for(i=1;i7;i+)P0=LEDDATAi;P2=temp;/锁存器OE=1；P2=0x4F;/锁存器OE=0；if(temp=0x46)temp=0x40;temp+;while(1);12. 图3.43 88 LED点阵显示器与单片机接口电路图/* * 文件名：8x8led.c * 芯片：Ateml89C52 * 主频：12MHz * 功能描述：8x8LED显示从0到9数据 */#include #defineuintunsigned int#defineucharunsigned char/列选通uchar code g_lineStrobe=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f;/数字字模，10个数字09，每个数字8个字节uchar code g_digit108= 0x00,0x00,0x3e,0x41,0x41,0x41,0x3e,0x00, /0 0x00,0x00,0x00,0x00,0x21,0x7f,0x01,0x00, /10x00,0x00,0x27,0x45,0x45,0x45,0x39,0x00, /20x00,0x00,0x22,0x49,0x49,0x49,0x36,0x00, /30x00,0x00,0x0c,0x14,0x24,0x7f,0x04,0x00, /40x00,0x00,0x72,0x51,0x51,0x51,0x4e,0x00, /50x00,0x00,0x3e,0x49,0x49,0x49,0x26,0x00, /60x00,0x00,0x40,0x40,0x40,0x4f,0x70,0x00, /70x00,0x00,0x36,0x49,0x49,0x49,0x36,0x00, /80x00,0x00,0x32,0x49,0x49,0x49,0x3e,0x00, /9 ;/数字字模指针 uchar g_point=0; /第几个字符 uchar g_nDigit=0;/定时器定时次数uchar g_tCount = 0; /* * 函数名：main * 功能描述：main主函数 * 输入参数：无 * 返回值：无 */void main(void) TMOD=0x01; /定时器0方式1 TH0=(65536-5000)/256; /设置定时计数初值,5msTL0=(65536-5000)%256; TR0=1; ET0=1; /打开定时器0中断 EA=1; while(1); /* * 函数名：Timer0Int * 功能描述：定时器0中断服务程序，5ms中断一次，扫描一列 * 输入参数：无 * 返回值：无 */void Timer0Int(void) interrupt 1TH0=(65536-5000)/256; TL0=(65536-5000)%256; P3=g_lineStrobeg_point; /列选通 P0=g_digitg_nDigitg_point; /行，送数字字模 g_point+; if(g_point=8) g_point=0; g_tCount+;if (g_tCount = 40)/定时40次，200ms，每个数字显示200msg_tCount = 0;g_nDigit+;/准备显示下一个数字if (g_nDigit = 10)g_nDigit = 0; 12. 图3.44 1616 LED 点阵显示器电路/* * 文件名 LED.c * 芯片：AT89C52 * 主频：12MHZ * 功能描述：16x16LED点阵显示 */#include #include /要显示的字码char code TABLE32=0x00,0xF8,0x48,0x48,0x48,0x48,0xFF,0x48,/电0x48,0x48,0x48,0xFC,0x08,0x00,0x00,0x00,0x00,0x07,0x02,0x02,0x02,0x02,0x3F,0x42,0x42,0x42,0x42,0x47,0x40,0x70,0x00,0x00,0x00,0xFE,0x42,0xC2,0x42,0x7F,0x12,0x08,/路0x8C,0x57,0x24,0x54,0x8C,0x84,0x80,0x00,0x40,0x7E,0x40,0x3F,0x22,0x22,0x01,0xFF,0x42,0x42,0x42,0x42,0x42,0xFF,0x02,0x00,0x00,0xFE,0x02,0x22,0x12,0x1E,0xAA,0x4A,/图0xAA,0x1A,0x0A,0x02,0x02,0xFF,0x02,0x00,0x00,0xFF,0x44,0x44,0x42,0x49,0x49,0x52,0x64,0x41,0x42,0x46,0x42,0xFF,0x00,0x00, ;/函数原型申明void delay1ms(void);/* * 函数名：main * 功能：程序入口 * 输入参数：无 * 输出参数：无 */void main()int i,j,k;char lie; /列值变量while(1)P0=0X00; /清除P0口P2=0X00; /清除P2口for(j=0;j3;j+)for(k=0;k20;k+)lie=0x00;for(i=0;i0;c-) for(b=142;b0;b-) for(a=2;a0;a-);13. 图3.61 MGLS-12864显示模块控制图/* * 文件名 LED.c * 芯片：AT89C52 * 主频：12MHZ * 功能描述：12864LCD显示 */#include #include /汉字字模char code TABLE32=/*- 文字: 量 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x40,0x40,0x40,0xDF,0x55,0x55,0x55,0xD5,0x55,0x55,0x55,0xDF,0x40,0x40,0x40,0x00,0x40,0x40,0x40,0x57,0x55,0x55,0x55,0x7F,0x55,0x55,0x55,0x57,0x50,0x40,0x40,0x00,/*- 文字: 程 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x10,0x12,0xD2,0xFE,0x91,0x11,0x80,0xBF,0xA1,0xA1,0xA1,0xA1,0xBF,0x80,0x00,0x00,0x04,0x03,0x00,0xFF,0x00,0x41,0x44,0x44,0x44,0x7F,0x44,0x44,0x44,0x44,0x40,0x00,/*- 文字: 调 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x20,0x21,0xEE,0x04,0x00,0x00,0xFF,0x29,0xA9,0xBF,0xA9,0xA9,0x01,0xFF,0x00,0x00,0x00,0x00,0x1F,0x88,0x44,0x30,0x0F,0x00,0x0F,0x04,0x04,0x4F,0x80,0x7F,0x00,0x00,/*- 文字: 整 -*/*- 宋体12; 此字体下对应的点阵为：宽x高=16x16 -*/0x00,0x04,0x74,0xD4,0xFF,0xD4,0x74,0x04,0x10,0x0C,0xB7,0x44,0xB4,0x0C,0x04,0x00,0x00,0x42,0x43,0x7A,0x43,0x42,0x43,0x7E,0x4B,0x4B,0x4A,0x4A,0x42,0x43,0x01,0x00,;/数字char code TABLENUM16= 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00, 0x00,0x0F,0x10,0x20,0x20,0x10,0x0F,0x00,/0 0x00,0x10,0x10,0xF8,0x00,0x00,0x00,0x00, 0x00,0x20,0x20,0x3F,0x20,0x20,0x00,0x00,/1 0x00,0x70,0x08,0x08,0x08,0x88,0x70,0x00, 0x00,0x30,0x28,0x24,0x22,0x21,0x30,0x00,/2 0x00,0xF8,0x08,0x88,0x88,0x08,0x08,0x00, 0x00,0x19,0x21,0x20,0x20,0x11,0x0E,0x00,/5 0x00,0xE0,0x10,0x08,0x08,0x10,0xE0,0x00, 0x00,0x00,0x31,0x22,0x22,0x11,0x0F,0x00,/9 ;/LCD地址定义#define CWADD1 XBYTE0xe000 /写指令代码地址（左）#define CRADD1 XBYTE0xe800 /读状态字地址 （左）#define DWADD1 XBYTE0xe400 /写显示数据地址（左）#define DRADD1 XBYTE0xec00 /读显示数据地址（左）#define CWADD2 XBYTE0xf000 /写指令代码地址（右）#define CRADD2 XBYTE0xf800 /读状态字地址 （右）#define DWADD2 XBYTE0xf400 /写显示数据地址（右）#define DRADD2 XBYTE0xfc00 /读显示数据地址（右）/函数原型申明void PRL0(unsigned char a);void PRL1(unsigned char a);void PRL1(unsigned char a);void PRR1(unsigned char b);void INIT();void INITN();void Clear();void DIS(unsigned char c,unsigned char p,int e);void DIS_CW