用51单片机控制12864显示数字时钟

用51单片机控制12864显示数字时钟里面有128564显示汉字的程序，自己研究下，不过是用msp430控制的，你改改端口i就可以了。

#include "msp430x26x.h"#define uchar unsigned char#define uint unsigned int#define iDat 1 //数据标志#define iCmd 0 //指令标志#define LCDb_RS 0x20 //定义四个控制引脚#define LCDb_RW 0x40#define LCDb_E 0x80#define LCDb_RST 0x04#define LCDb_L1 0x80 //第一行的地址#define LCDb_L2 0x90 //第二行的地址#define LCDb_L3 0x88 //第三行的地址#define LCDb_L4 0x98 //第四行的地址#define LCDb_SET_RS P1OUT|=LCDb_RS //四个控制管脚的控制操作#define LCDb_SET_RW P1OUT|=LCDb_RW#define LCDb_SET_E P1OUT|=LCDb_E#define LCDb_SET_RST P8OUT|=LCDb_RST#define LCDb_CLR_RS P1OUT&=~LCDb_RS#define LCDb_CLR_RW P1OUT&=~LCDb_RW#define LCDb_CLR_E P1OUT&=~LCDb_E#define LCDb_CLR_RST P8OUT&=~LCDb_RST#define LCDb_DO P4OUT //输出数据总线端口定义#define LCDb_FUNCTION 0x38 // 液晶模式为8位，2行，5*8字符#define LCDb_BASCMD 0x30 // 基本指令集#define LCDb_CLS 0x01 // 清屏#define LCDb_HOME 0x02 // 地址返回原点，不改变DDRAM内容#define LCDb_ENTRY 0x06 // 设定输入模式，光标加，屏幕不移动#define LCDb_C2L 0x10 // 光标左移#define LCDb_C2R 0x14 // 光标右移#define LCDb_D2L 0x18 // 屏幕左移#define LCDb_D2R 0x1C // 屏幕又移#define LCDb_ON 0x0C // 打开显示#define LCDb_OFF 0x08 // 关闭显示unsigned char RXData;unsigned char Seg_Data[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f} ; //数码管编码unsigned char Result[5]; //整数转化成字符串，给LCD显示void Delayms(uint MS){uint i,j;for( i=0;i<MS;i++)for(j=0;j<1141;j++);}void Delayus(uint US){uint i;US=US*5/4;for( i=0;i<US;i++);}void LCD12864_portini(){P1DIR=0xFF;P4DIR=0xFF;P5DIR=0xFF;P8DIR=0xFF;P8OUT |=LCDb_RST;// P1OUT=0xFF;}/*函数名称: LCD12864_sendbyte功能: 向12864液晶写入一个字节数据或者指令*/void LCD12864_sendbyte(uchar DatCmd, uchar dByte){if (DatCmd == iCmd) //指令操作LCDb_CLR_RS;elseLCDb_SET_RS;LCDb_CLR_RW; //写操作LCDb_SET_E;LCDb_DO = dByte; //写入数据//Delayus(500);Delayms(1);LCDb_CLR_E;}/*函数名称: LCD12864_sendstr功能: 向12864液晶写入一个字符串参数: ptString--字符串指针返回值 : 无*/void LCD12864_sendstr(uchar *ptString){while((*ptString)!='\0') //字符串未结束一直写{LCD12864_sendbyte(iDat, *ptString++);}}/*函数名称: LCD12864_clear功能: 12864液晶清屏参数: 无返回值 : 无*/void LCD12864_clear(void){LCD12864_sendbyte(iCmd,LCDb_CLS);Delayms(2);// 清屏指令写入后，2ms 的延时是很必要的}/*函数名称: LCD12864_gotoXY功能: 移动到指定位置参数: Row--指定的行Col--指定的列返回值 : 无*/void LCD12864_gotoXY(uchar Row, uchar Col){switch (Row) //选择行{case 2:LCD12864_sendbyte(iCmd, LCDb_L2 + Col); break; //写入第2行的指定列case 3:LCD12864_sendbyte(iCmd, LCDb_L3 + Col); break; //写入第3行的指定列case 4:LCD12864_sendbyte(iCmd, LCDb_L4 + Col); break; //写入第4行的指定列default:LCD12864_sendbyte(iCmd, LCDb_L1 + Col); break; //写入第1行的指定列}}/*函数名称: LCD12864_initial功能: 12864液晶初始化*/void LCD12864_initial(void){Delayms(100); // 等待内部复位LCD12864_portini(); //端口初始化LCD12864_sendbyte(iCmd, LCDb_FUNCTION); //功能、模式设定LCD12864_sendbyte(iCmd, LCDb_ON); //打开显示LCD12864_clear(); //清屏LCD12864_sendbyte(iCmd, LCDb_ENTRY); // 输入模式设定}void Int_char(int data){if(data/1000){Result[0]=data/1000+'0';Result[1]=data/100%10+'0';Result[2]=data/10%10+'0';Result[3]=data%10+'0';Result[4]=0;}else if(data/100){Result[0]=data/100+'0';Result[1]=data/10%10+'0';Result[2]=data%10+'0';Result[3]=0;}else if(data/10){Result[0]=data/10%10+'0';Result[1]=data%10+'0';Result[2]=0;}else{Result[0]=data%10+'0';Result[1]=0;}}unsigned char Key_Press(void){P7OUT=0xF0;if((P7IN&0x10)&&(P7IN&0x20)&&(P7IN&0x40)&&(P7IN&0x80)) return 0x00; else return 0xFF;}unsigned char Get_Keycode(void){while(1){P7OUT=0xFE; //扫描第一列if((P7IN&0x10)==0) return 0;else if((P7IN&0x20)==0) return 4;else if((P7IN&0x40)==0) return 8;else if((P7IN&0x80)==0) return 12;P7OUT=0xFD; //扫描第二列if((P7IN&0x10)==0) return 1;else if((P7IN&0x20)==0) return 5;else if((P7IN&0x40)==0) return 9;else if((P7IN&0x80)==0) return 13;P7OUT=0xFB; //扫描第三列if((P7IN&0x10)==0) return 2;else if((P7IN&0x20)==0) return 6;else if((P7IN&0x40)==0) return 10;else if((P7IN&0x80)==0) return 14;P7OUT=0xF7; //扫描第四列if((P7IN&0x10)==0) return 3;else if((P7IN&0x20)==0) return 7;else if((P7IN&0x40)==0) return 11;else if((P7IN&0x80)==0) return 15;}}void Init_compa(){CACTL1 = CAON+CAREF_2+CARSEL; // Enable Comp, ref = 0.5*Vcc = Vin- CACTL2 = P2CA0; // Pin to CA0P1DIR |= 0x01; // P1.0 = o/p direction(CAOUT - LED) P1SEL |= 0x01; // P1.0 - CAOUT, option select}/*** 函数名称：初始化函数*/void Init_IIC(void){P3SEL |= 0x06; // Assign I2C pins to USCI_B0UCB0CTL1 |= UCSWRST; // Enable SW resetUCB0CTL0 = UCMST + UCMODE_3 + UCSYNC; // I2C Master, synchronous modeUCB0CTL1 = UCSSEL_2 + UCSWRST; // Use SMCLK, keep SW resetUCB0BR0 = 12; // fSCL = SMCLK/12 = ~100kHzUCB0BR1 = 0;UCB0I2CSA = 0x50; // Slave Address is 048hUCB0CTL1 &= ~UCSWRST; // Clear SW reset, resume operation IE2 |= UCB0RXIE; // Enable RX interrupt_BIS_SR(GIE);// RXCompare = 0x0; // Used to check incoming data }/** 函数名称：字节写函数*/void EEPROM_Write(unsigned char high_Address,unsigned char low_Address,unsigned char Word){while (UCB0CTL1 & UCTXSTP); // 确定总线空闲UCB0CTL1 |= UCTXSTT + UCTR; // 发送起始位，确定为发送模式UCB0TXBUF = high_Address; // 发送高位地址while((IFG2 & UCB0TXIFG)==0); // 判断是否发送完毕UCB0TXBUF = low_Address; // 发送低位地址while((IFG2 & UCB0TXIFG)==0); // 判断是否发送完毕UCB0TXBUF = Word; // 发送数据while((IFG2 & UCB0TXIFG)==0); // 判断是否发送完毕UCB0CTL1 |= UCTXSTP; // 发送停止位while((UCB0CTL1 & UCTXSTP)==1); // 判断停止位是否发送完毕}/**** 函数名称：字节读函数*/void EEPROM_readmore(){UCB0CTL1 &= ~UCTR; // 确定为读while (UCB0CTL1 & UCTXSTP); // 总线是否空闲UCB0CTL1 |= UCTXSTT; // 发送开始位}/*** 函数名称：字节写函数**/void EEPROM_read(unsigned char high_Address,unsigned char low_Address){while (UCB0CTL1 & UCTXSTP); // Ensure stop condition got sent UCB0CTL1 |= UCTXSTT + UCTR; // 发送起始位，确定为写UCB0TXBUF = high_Address; // 发送地址位高位while((IFG2 & UCB0TXIFG)==0); // 判断是否发送完毕UCB0TXBUF = low_Address; // 发送地址位低位while((IFG2 & UCB0TXIFG)==0); // 判断是否发送完毕UCB0CTL1 &= ~UCTR; // 确定为接收while (UCB0CTL1 & UCTXSTP); //UCB0CTL1 |=UCTXSTT ;while((UCB0CTL1 & UCTXSTT)==1);for(unsigned char i=0x0;i<0x2f;i++); // 延时确定数据已经被发送出去UCB0CTL1 |=UCTXSTP + UCTXNACK; // 发送停止位和NACK位}/*** 函数名称：接收中断函数**/// USCI_B0 Data ISR#pragma vector = USCIAB0TX_VECTOR__interrupt void USCIAB0TX_ISR(void){RXData = UCB0RXBUF; // Get RX dataInt_char(RXData);LCD12864_gotoXY(2,0); //第2行，第1列显示LCD12864_sendstr(Result);/*key_code[0]=RXData%10+'0';key_code[1]=0;LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr(key_code);*/// __bic_SR_register_on_exit(CPUOFF); // Exit LPM0}void Init_UART(){P3OUT &= ~(BIT4+BIT5+BIT6+BIT7);P3SEL = 0xF0; // P3.4,5,6,7 = USCI_A0 TXD/RXD USCI_A1 TXD/RXDUCA0CTL1 |= UCSSEL_1; // CLK = ACLKUCA0BR0 = 0x03; // 32kHz/9600 = 3.41UCA0BR1 = 0x00; //UCA0MCTL = UCBRS1 + UCBRS0; // Modulation UCBRSx = 3UCA0CTL1 &= ~UCSWRST; // **Initialize USCI state machine** IE2 |= UCA0RXIE; // Enable USCI_A0 RX interruptUCA1CTL1 |= UCSSEL_1; // CLK = ACLKUCA1BR0 = 0x03; // 32kHz/9600 = 3.41UCA1BR1 = 0x00; //UCA1MCTL = UCBRS1 + UCBRS0; // Modulation UCBRSx = 3UCA1CTL1 &= ~UCSWRST; // **Initialize USCI state machine** UC1IE |= UCA1RXIE; // Enable USCI_A0 RX interrupt_BIS_SR(GIE); //使能中断}void Init_ADC(){ADC12CTL0 = SHT0_2 + ADC12ON; // Set sampling time, turn on ADC12 ADC12CTL1 = SHP; // Use sampling timerADC12IE = 0x01; // Enable interruptADC12CTL0 |= ENC; // Conversion enabledP6DIR &= 0x01; // P6.0, i/pP6SEL |= 0x01; // P6.0-ADC option select_BIS_SR(GIE); //使能中断}void Start_ADC(){ADC12CTL0 |= ADC12SC; // Start convn, software controlled}#pragma vector=USCIAB0RX_VECTOR__interrupt void USCI0RX_ISR(void){while (!(IFG2&UCA0TXIFG)); // USCI_A0 TX buffer ready? UCA0TXBUF = UCA0RXBUF; // TX -> RXed characterLCD12864_sendbyte(iDat,UCA0RXBUF);}#pragma vector=USCIAB1RX_VECTOR__interrupt void USCI1RX_ISR(void){while (!(UC1IFG&UCA1TXIFG)); // USCI_A0 TX buffer ready? UCA1TXBUF = UCA1RXBUF; // TX -> RXed characterLCD12864_sendbyte(iDat,UCA0RXBUF);//UCA1TXBUF = 'z';}// ADC12 interrupt service routine#pragma vector=ADC12_VECTOR__interrupt void ADC12_ISR (void){int i=ADC12MEM0;Int_char(i);LCD12864_gotoXY(2,0); //第1行，第1列显示LCD12864_sendstr(Result);/*key_code[0] =i/1000+'0';key_code[1] =i/100%10+'0';key_code[2] =i/10%10+'0';key_code[3] =i%10+'0';key_code[4] =0;LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr(key_code);*/}void Init_all(){LCD12864_initial(); //LCD初始化，包含了数码管和LED灯初始化P7DIR=0x0F; //键盘扫描初始化P7REN=0xF0; //输入上下拉电阻使能，输出上下拉不使能P7OUT=0xF0; //输入上拉Init_UART(); //串口初始化Init_compa(); //比较器初始化Init_ADC(); //ADC初始化Init_IIC(); //IIC初始化}void Test_Led(){unsigned char i=0;LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr("1.Test_LED");for(;i<16;i++){P8OUT=0xF0|i;Delayms(50);}}void Test_Seg(){int i;LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr("2.Test_SEG");for(i=0;i<500;i++){//4,3,2,1P1OUT&=~0x02;P1OUT|=0x10|0x08|0x04;P5OUT=Seg_Data[9]; //清楚数码管显示Delayms(1);P1OUT&=~0x04;P1OUT|=0x10|0x08|0x02;P5OUT=Seg_Data[8]; //清楚数码管显示Delayms(1);P1OUT&=~0x08;P1OUT|=0x10|0x04|0x02;P5OUT=Seg_Data[7]; //清楚数码管显示Delayms(1);P1OUT&=~0x10;P1OUT|=0x08|0x04|0x02;P5OUT=Seg_Data[6]; //清楚数码管显示Delayms(1);}P5OUT=0x00; //熄灭所有数码管}void Test_Key(){unsigned char i=0;LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr("3.Test_KEY");LCD12864_gotoXY(2,0); //第2行，第1列显示LCD12864_sendstr("按键：");for(;i<16;i++){Int_char(Get_Keycode());LCD12864_gotoXY(2,3);LCD12864_sendstr(" ");LCD12864_gotoXY(2,3);LCD12864_sendstr(Result);Delayms(100); //防抖}}void Test_Uart(){LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr("4.Test_UART");LCD12864_gotoXY(2,0); //第2行，第1列显示}void Test_Compa(){LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr("5.Test_COMPA");}void Test_ADC(){int i=0;LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr("6.Test_ADC");for(;i<200;i++){Start_ADC();Delayms(10);}}void Test_IIC(){LCD12864_gotoXY(1,0); //第1行，第1列显示LCD12864_sendstr("7.Test_IIC");EEPROM_Write(0x00,0x40,7); // 字节写Delayms(10);EEPROM_read(0x00,0x40);}void main( void ){// Stop watchdog timer to prevent time out resetWDTCTL = WDTPW + WDTHOLD;//关闭看门狗Init_all();while(1){Test_Led(); //1.测试LEDLCD12864_gotoXY(2,0); //第1行，第1列显示LCD12864_sendstr("请按16键！");while(!(Get_Keycode()==15)); //按下最后一键测试下一个例子 LCD12864_clear();Test_Seg(); //2.测试数码管LCD12864_gotoXY(2,0); //第1行，第1列显示LCD12864_sendstr("请按16键！");while(!(Get_Keycode()==15)); //按下最后一键测试下一个例子 LCD12864_clear();Test_Key(); //3.测试按键扫描LCD12864_gotoXY(2,0); //第1行，第1列显示LCD12864_sendstr("请按16键！");while(!(Get_Keycode()==15)); //按下最后一键测试下一个例子 LCD12864_clear();LCD12864_gotoXY(3,0); //第3行，第1列显示LCD12864_sendstr("请按16键！");Test_Uart(); //4.测试串口while(!(Get_Keycode()==15)); //按下最后一键测试下一个例子 LCD12864_clear();Test_Compa(); //5.测试比较器LCD12864_gotoXY(2,0); //第2行，第1列显示LCD12864_sendstr("请按16键！");while(!(Get_Keycode()==15)); //按下最后一键测试下一个例子 LCD12864_clear();Test_ADC(); //6.测试ADCLCD12864_gotoXY(3,0); //第3行，第1列显示LCD12864_sendstr("请按16键！");while(!(Get_Keycode()==15)); //按下最后一键测试下一个例子 LCD12864_clear();Test_IIC(); //7.测试IICDelayms(100);LCD12864_gotoXY(3,0); //第3行，第1列显示LCD12864_sendstr("测试完成");while(!(Get_Keycode()==15)); //按下最后一键测试下一个例子 LCD12864_clear();}}。