MSP430在12864液晶显示屏上计数.doc

Main.c#include #include Config.h /开发板配置头文件，主要配置IO端口信息#include 12864.hunsigned char line1=计时器00: 00. 0; /分，秒，毫秒uchar Count,miao,fen; /毫秒,秒,分变量 void timer(); /定时器函数/*/ MSP430IO口初始 化/*void Port_Init() LED8SEL = 0x00; /设置IO口为普通I/O模式，此句可省 LED8DIR = 0xFF; /设置IO口方向为输出 LED8PORT = 0xFF; /P2口初始设置为FF DATASEL = 0x00; /设置IO口为普通I/O模式，此句可省 DATADIR = 0xFF; /设置IO口方向为输出 DATAPORT = 0xFF; /P4口初始设置为FF CTRSEL = 0x00; /设置IO口为普通I/O模式，此句可省 CTRDIR |= BIT3 + BIT4; /设置IO口方向为输出,控制口在P63,P64 CTRPORT = 0xFF; /P6口初始设置为FF/*/ TIMERA初始化，设置为UP模式计数/*void TIMERA_Init(void) /UP模式计数，计数周期为CCR0+1 TACTL |= TASSEL1 + TACLR + ID0 + MC0 + TAIE; /SMCLK做时钟源，8分频，增加计数模式，开中断 TACCR0 =36000; /CCR0=36000，10ms中断一次/*/ 主函数/*void main(void) /WDT_Init(); /看门狗设置 WDTCTL = WDTPW + WDTHOLD; /关闭看门狗 Port_Init(); /端口初始化 TIMERA_Init(); /设置TIMERA，P12输出PWM信号 _EINT(); /开中断 lcd_init(); /显示文字 Disp_HZ(0x90,line1,8); while(1) timer(); /*/ TIMERA中断服务程序，需要判断中断类型/*#pragma vector = TIMERA1_VECTOR_interrupt void Timer_A(void) switch(TAIV) /需要判断中断的类型 case 2:break; case 4:break; case 10:Count+; if(Count=10) Count=0; miao+=1; break; void timer() /定时器函数uchar shi,ge;shi=miao/10;/分解一个2位数的十位和个位 ge=miao%10; if(miao=60) miao = 0; fen+; shi=fen/10;/分解一个2位数的十位和个位 ge=fen%10; if(fen=60) fen=0; lcdwrite_com(0x93); /写分 lcdwrite_data(shi+0x30); lcdwrite_data(ge+0x30); lcdwrite_com(0x95); /写秒 lcdwrite_data(shi+0x30); lcdwrite_data(ge+0x30); lcdwrite_com(0x97); /写毫秒 lcdwrite_data(Count+0x30); 12864.h#define uchar unsigned char#define uint unsigned int extern unsigned char flag,shi,fen,miao;void delay_1ms(uint n);void lcdwrite_com(uchar com);void lcdwrite_data(uchar dat);void lcd_init();void Disp_HZ(uchar addr,const uchar * pt,uchar num);12864.c#include typedef unsigned char uchar;typedef unsigned int uint;extern const unsigned char shuzi_table;#define lcd_dataindir P2DIR=0x00#define lcd_dataoutdir P2DIR=0xff#define lcd_datain P2IN#define lcd_dataout P2OUT#define lcd_rweoutdir P6DIR|=0xff /63 64 65 66 0111 1000 #define lcd_rs_h P6OUT|=BIT3 /p63#define lcd_rs_l P6OUT&=BIT3#define lcd_rw_h P6OUT|=BIT4 /p64#define lcd_rw_l P6OUT&=BIT4#define lcd_e_h P6OUT|=BIT5 /p65#define lcd_e_l P6OUT&=BIT5#define lcd_psb_h P6OUT|=BIT6/*函数名称：Delay_Nms功 能：延时N个1ms的时间参 数：n-延时长度返回值 ：无*/void delay_1ms(uint n) uchar i,j; for(i=150;i0;i+)for(j = 0;jn;j+)_NOP();/*函数名称：Write_com功 能：向液晶中写控制命令参 数：com-控制命令返回值 ：无*/void lcdwrite_com(uchar com) lcd_rweoutdir; lcd_rs_l; lcd_rw_l; lcd_e_l; lcd_dataoutdir; lcd_dataout=com; delay_1ms(5); lcd_e_h; delay_1ms(5); lcd_e_l; delay_1ms(5); /*函数名称：Write_Data功 能：向液晶中写显示数据参 数：dat-显示数据返回值 ：无*/void lcdwrite_data(uchar dat) lcd_rweoutdir; lcd_rs_h; lcd_rw_l; lcd_e_l; lcd_dataoutdir; lcd_dataout=dat; delay_1ms(5); lcd_e_h; delay_1ms(5); lcd_e_l; delay_1ms(5);/*函数名称：lcd_init功 能：LCD的初始化参 数：无返回值 ：无*/void lcd_init() lcd_rweoutdir; lcd_psb_h; lcdwrite_com(0x30); delay_1ms(5); lcdwrite_com(0x0c); delay_1ms(5); lcdwrite_com(0x01); delay_1ms(5);/*函数名称：Disp_HZ功 能：控制液晶显示汉字参 数：addr-显示位置的首地址 pt-指