单片机流程图.doc

.单片机总流程图NDisp_HELLO();结束i=o？YDisp_HELLO();NDisp_HELLO();主函数程序#include#include#define uchar unsigned char#define uint unsigned int#define OSC_FREQ 12000000#define _10ms (65536 - OSC_FREQ/(12000000/9970)#define COM8255 XBYTE0XFFF3#define PA8255 XBYTE0XFFF0#define PB8255 XBYTE0XFFF1#define PC8255 XBYTE0XFFF2uchar code tab=0xFC,0x60,0xDA,0xF2,0x66,0xB6,0xBE,0xE0,0xFE,0xF6;uchar code dis_HELLO=0x89,0x86,0xc7,0xc7;uchar code dis_op51=0xc0,0x8c,0x92,0xf9;uchar code dis_code=0xcf,0xa4,0xcf,0xa4;uchar ucCnt_10ms=99;uchar i=0;uchar J=0;uchar n=0;uchar led1;uchar led2;sbit P2_4=P24;sbit P3_7=P37;sbit P1_0=P10;sbit P1_1=P11;sbit P1_2=P12;void Disp_op51 ();void Disp_HELLO();void Set_Init_Xint();void Set_Init_Timer();void Disp_t();void DelayX1ms(uint count);void Disp_8255();void main() for(;) Set_Init_Xint();Set_Init_Timer();Disp_8255(); /ucCnt_10ms =99; /ucLed1 = 6; /ucLed2 = 8;if ( n=1 ) for(;) Disp_HELLO();if (PB8255=0xef) for(;) Disp_op51 () ; Disp_t();for(i=0;i0xff;i+); for(i=0;i0xff;i+); 定时器T0流程图开始NY定时器T0计时YucCnt_10ms=0ucCnt_10ms=200？定时器中断服务函数重装初值TR0=1？植入初值定时器T0初始化中断返回结束定时器初始化函数程序void Set_Init_Timer() TMOD=0x01; TH0 = _10ms/256; TL0 = _10ms%256; EA=1; ET0=1;定时器中断服务函数程序Run_Time0(void) interrupt 1 using 2 TR0 = 0; TH0 = _10ms/256; TL0 = _10ms%256; TR0 = 1;ucCnt_10ms+; if( ucCnt_10ms=200 ) /1s ucCnt_10ms = 0;led1+ ; if( led1=10) /1S时间到更新显示缓冲值 led1 = 0;led2+; if(led2= 10) led2 = 0; 外部中断0流程图开始Y结束TR0=1，n+=中断服务程序中断返回外部中断0初始化是否有中断请求？外部中断初始化函数程序void Set_Init_Xint() IT0=1; EX0=1; EA=1; 定时器中断服务函数程序Run_Xint0(void) interrupt 0 using 1 n+; TR0=1; 独立式按键流程图开始YNY结束i0xff？099函数OP51函数PB8255=0xef？（K12）8255初始化定义ABC口8255入口地址8255定义入口#define COM8255 XBYTE0XFFF3#define PA8255 XBYTE0XFFF0#define PB8255 XBYTE0XFFF1#define PC8255 XBYTE0XFFF2sbit P3_7=P37;sbit P1_0=P10;sbit P1_1=P11;sbit P1_2=P12;8255初始化函数程序void Disp_8255()P3_7=0;P1_0=0;P1_1=1;P1_2=0;COM8255=0x82; HELLO显示函数程序void Disp_HELLO()/HELLO显示函数 SCON = 0x00;SBUF=0xFC; P2_4=0; while(!TI); TI = 0;P2_4=1;P2_4=0; SBUF=0x02;while(!TI); TI = 0;P2_4=1;P1=0x7A; P2=dis_HELLO0 ;DelayX1ms(5);P1=0xBA; P2=dis_HELLO1 ;DelayX1ms(5); P1=0xDA;P2=dis_HELLO2;DelayX1ms(5);P1=0xEA;P2=dis_HELLO3;DelayX1ms(5); OP51显示函数程序void Disp_op51 () P1=0x7F; P2=dis_op510 ;DelayX1ms(5);P1=0xBF; P2=dis_op511 ;DelayX1ms(5); P1=0xDF;P2=dis_op512 ;DelayX1ms(5);P1=0xEF;P2=dis_op513 ;DelayX1ms(5);099显示函数程序void Disp_t() SCON = 0x00; SBUF=tabled2;P2_4=0;while(!TI);TI=0;P2_4=1;