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IO定義：
輸出口P0.0
輸入口P2.7\P2.6P2.5\P2.4
要求：1、P2.6為低時(shí)，P0.0為高；P2.7和P2.6為低時(shí)，P0.0為低。P2.7單獨(dú)為低時(shí)，不作任何反映。
2、當(dāng)P2.4為低時(shí)，無(wú)論P(yáng)2.7和P2.6在什么狀態(tài)，P0.0為低。
3、當(dāng)P2.5為低時(shí)，P0.0為低。
以下是程序，但有問(wèn)題，請(qǐng)高手指出：
/*
*/
#include<STC12C5A60S2.h>
#define uchar unsigned char
#define uint unsigned int
#define Delaytime 100 //消抖
#define Delaybeemp 10
typedef signed long INT64S;
typedef unsigned long INT64U;
typedef signed int INT32S;
typedef unsigned int INT32U;
typedef signed short INT16S;
typedef unsigned short INT16U;
typedef signed char INT8S;
typedef unsigned char INT8U;
/*IO口定義*/
sbit out_upper=P0^0; //接電磁閥
sbit out_lower = P0^2; //不用
sbit Buzzer = P0^1; //不用
sbit Upper_limit=P2^4; //（接光膜傳感器）
sbit Lower_limit = P2^5; //檢測(cè)電磁到位開(kāi)關(guān)
sbit button = P2^6; //按鈕S2
sbit button1 = P2^7; //按鈕S1
typedef struct tagTYPE_UART_BUFFER
{
INT8U ucFlag;
INT8U ucIndex;
INT8U ucLength;
INT8U ucBuffer[20];
}TYPE_UART_BUFFER, *pTYPE_UART_BUFFER;
typedef struct tagTYPE_UART_INFO
{
TYPE_UART_BUFFER sRX;
TYPE_UART_BUFFER sTX;
}TYPE_UART_INFO, *pTYPE_UART_INFO;
// ---------------------------------------------
unsigned char button_flag,jishu_flag,Upper_limit_flag,Lower_limit_flag;
unsigned char delay = Delaytime;
TYPE_UART_INFO xdata sUART0_Info = {0};
void sendonebyte(void);
/*
函數(shù)功能：串口初始化，
波特率：38400 工作在1T模式，使用定時(shí)器1計(jì)數(shù)
*/
void InitUART(void)
{
TMOD = 0x21;
SCON = 0x50;
AUXR |= 0x40;//使其工作在1T模式下
TH1 = 0xF7;
TL1 = TH1;
PCON = 0x00;
EA = 1;
ES = 1;
TR1 = 1;
//定時(shí)器0 定時(shí)時(shí)間：10ms
TH0 = 0x0FF;
TL0 = 0x0F6;
EA = 1;
ET0 = 1;
TR0 = 1;
//初始化輸入輸出的io
P0M0 = 0xff;
P0M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0xff;
}
/*
函數(shù)功能：延時(shí)時(shí)間為10ms
*/
void delay_10ms(void) //誤差 0us
{
unsigned char a,b,c;
for(c=1;c>0;c--)
for(b=38;b>0;b--)
for(a=130;a>0;a--);
}
void main(void)
{
uchar i,flag=0;
// jishu_flag = 0;
InitUART();
out_upper = 1;//此時(shí)汽缸向上動(dòng)作
out_lower = 1;
Upper_limit_flag = 0; // 光幕傳感器
Lower_limit_flag = 0; //到位開(kāi)關(guān)
button_flag = 0; //按鈕S1
button1_flag = 0; //按鈕S2
while(1)
{
// if(sUART0_Info.sRX.ucFlag == 1)
// {
// sUART0_Info.sRX.ucFlag = 0;
// out_upper = 1;//此時(shí)汽缸向上動(dòng)作
// out_lower = 1;
// for(i = 0;i<sUART0_Info.sRX.ucLength;i++)
// {
// sUART0_Info.sRX.ucBuffer = 0;
// }
// }
if(Upper_limit_flag == 1) //光幕傳感器
{
Upper_limit_flag = 0;
out_upper = 1;//此時(shí)汽缸向上動(dòng)作
out_lower = 1;
flag = 0;
}
if((Lower_limit_flag == 1)&&(flag == 0)) //限位開(kāi)關(guān)和光幕傳感器做邏輯與運(yùn)算
{
Lower_limit_flag = 0; //限位開(kāi)關(guān)為低電位
flag = 1;
out_upper = 1;//此時(shí)汽缸向下動(dòng)作
out_lower = 0;
sendonebyte();
}
if(button_flag == 1)&&(button1_flag == 1) //按鈕按下
{
button_flag = 0;
out_upper = 0;//此時(shí)汽缸向下動(dòng)作
out_lower = 1;
}
// if((input==0)&&(jishu_flag == 0))
// {
// delay_10ms();
// if((input==0)&&(jishu_flag == 0))
// {
// output = 0;//把汽缸合上
// jishu_flag = 1;
// overtime = 0;
// while((input_test_qg==1)&&(overtime++ < Delaybeemp-1))
// {
//
// for(i = 0;i< 100;i++)
// {
// delay_10ms();
// }
// }
// if(overtime>=Delaybeemp-1)
// {
// Buzzer = 0;
// }
// else if(input==0)
// {
// sendonebyte();
// }
// }
// }
// if(button_flag == 1)
// {
// button_flag = 0;
// Buzzer = 1;
// output = 1;
// // jishu_flag = 0;
// }
// if(input==1)
// {
// delay_10ms();
// if(input==1)
// {
// jishu_flag = 0;
// Buzzer = 1;
// }
// }
}
}
void ISR_UART0(void)interrupt 4
{
INT8U ucTemp;// 暫存變量
// 接收
if (RI){
// ---------------------------------------------
// 啟動(dòng)接收
RI = 0;
ucTemp = SBUF;
// 判斷數(shù)據(jù)
switch (sUART0_Info.sRX.ucIndex)
{
case 0:// "Z"
if (ucTemp == 'Z')
{
// "Z"
sUART0_Info.sRX.ucBuffer[sUART0_Info.sRX.ucIndex ++] = ucTemp;
}
else
{
// 無(wú)效數(shù)據(jù)
sUART0_Info.sRX.ucIndex = 0;
}
break;
case 1:// "U"
if (ucTemp == 'U')
{
sUART0_Info.sRX.ucBuffer[sUART0_Info.sRX.ucIndex ++] = ucTemp;
}
else
{
// 無(wú)效數(shù)據(jù)
sUART0_Info.sRX.ucIndex = 0;
}
break;
case 2:// "Z"
if (ucTemp == 'Z')
{
// "Z"
sUART0_Info.sRX.ucBuffer[sUART0_Info.sRX.ucIndex ++] = ucTemp;
}
else
{
// 無(wú)效數(shù)據(jù)
sUART0_Info.sRX.ucIndex = 0;
}
break;
default:// 通信數(shù)據(jù)
// 接收通信數(shù)據(jù),
sUART0_Info.sRX.ucBuffer[sUART0_Info.sRX.ucIndex ++] = ucTemp;
// 接收通信數(shù)據(jù),判斷回車(chē)鍵
if(((ucTemp == '\r')||((ucTemp == '\n')))&&(sUART0_Info.sRX.ucIndex >= 3))
{
sUART0_Info.sRX.ucLength = sUART0_Info.sRX.ucIndex;
sUART0_Info.sRX.ucIndex = 0; //接收完，清零索引
sUART0_Info.sRX.ucFlag = 1;
}
else
{
}
break;
}
// ---------------------------------------------
}
// ---------------------------------------------
if (TI){
// ---------------------------------------------
TI = 0;
// ---------------------------------------------
if (sUART0_Info.sTX.ucIndex < sUART0_Info.sTX.ucLength)
{
SBUF = sUART0_Info.sTX.ucBuffer[sUART0_Info.sTX.ucIndex ++];
}
else
{
sUART0_Info.sTX.ucIndex = 0;
sUART0_Info.sTX.ucLength = 0;
}
// ---------------------------------------------
}
// ---------------------------------------------
}
//10 ms掃描按鍵
void Timer0Interrupt(void) interrupt 1
{
// 清除標(biāo)志
TF0 = 0;
TR0 = 0;
TH0 = 0x0FF;
TL0 = 0x0F6;
TR0 = 1;
if((button == 0)||(Upper_limit == 0)||(Lower_limit == 0)) //按鈕、光幕傳感器、到位開(kāi)關(guān)存在邏輯或的關(guān)系
{
delay -- ; //延時(shí)消抖
if(!delay)
{
delay = Delaytime;
if(button == 0)
{
button_flag =1;
}
else if(Upper_limit == 0)
{
Upper_limit_flag = 1;
}
else if(Lower_limit == 0)
{
Lower_limit_flag = 1;
}
}
}
//add your code here!
}
void sendonebyte(void)
{
sUART0_Info.sTX.ucBuffer[0] = 'Z';
sUART0_Info.sTX.ucBuffer[1] = 'f';
sUART0_Info.sTX.ucBuffer[2] = 'Z';
sUART0_Info.sTX.ucBuffer[3] = '\r';
sUART0_Info.sTX.ucIndex = 0;
sUART0_Info.sTX.ucLength = 4;
SBUF = sUART0_Info.sTX.ucBuffer[sUART0_Info.sTX.ucIndex ++];
}
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