stc15单片机，需求：按键高电平按下，发送一次对应的字符串，松开后再按下再发送一次，现在出现的问题是按下持续发送
主程序里void分号前的分号不是写错，不写会报错，求大神帮忙解决
单片机主程序：
#include "stc15.h"
#include "uart.h"
#define unit unsigned int
#define uchar unsigned char
unsigned char a;
sbit k1=P1^1;
sbit k2=P1^2;
sbit k3=P1^3;
sbit k4=P1^4;
sbit k5=P1^5;
sbit k6=P5^5;
sbit k7=P1^6;
sbit k8=P2^6;
sbit k9=P2^5;
sbit k10=P2^4;
sbit k11=P2^3;
sbit b1=P2^7;
sbit out1=P3^5;
sbit out2=P3^6;
sbit out3=P3^7;
sbit out4=P1^4; //
sbit out5=P1^5; //
void delay(unit z) //延时函数
{
unit x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
} C
;void main()
{
uart_init(); //串口初始化
while(1)
{
k1=k2=k3=k4=k5=k6=k7=k8=k9=k10=k11=b1=0;
if(k1==1) //第1个按键
{
delay(10);
if(k1==1)
{
SendString("qq123");
while(!k1);
}
}
if(k2==1) //第2个按键
{
delay(10);
if(k2==1)
{
SendString("qq124");
while(!k2);
}
}
if(k3==1) //第3个按键
{
delay(10);
if(k3==1)
{
SendString("qq125");
while(!k3);
}
}
if(k4==1) //第4个按键
{
delay(10);
if(k4==1)
{
SendString("qq126");
while(!k4);
}
}
if(k5==1) //第5个按键
{
delay(10);
if(k5==1)
{
SendString("qq127");
while(!k5);
}
}
if(k6==1) //第6个按键
{
delay(10);
if(k6==1)
{
SendString("qq128");
while(!k6);
}
}
if(k7==1) //第7个按键
{
delay(10);
if(k7==1)
{
SendString("qq129");
while(!k7);
}
}
if(k8==1) //第8个按键
{
delay(10);
if(k8==1)
{
SendString("qq130");
while(!k8);
}
}
if(k9==1) //第9个按键
{
delay(10);
if(k9==1)
{
SendString("qq131");
while(!k9);
}
}
if(k10==1) //第10个按键
{
delay(10);
if(k10==1)
{
SendString("qq132");
while(!k10);
}
}
if(k11==1) //第11个按键
{
delay(10);
if(k11==1)
{
SendString("qqwqwdwq");
while(!k11);
}
}
}
}
uart.h:
#include "intrins.h"
typedef unsigned char BYTE;
typedef unsigned int WORD;
#define FOSC 11059200L //系统频率
#define BAUD 9600 //串口波特率
#define NONE_PARITY 0 //无校验
#define ODD_PARITY 1 //奇校验
#define EVEN_PARITY 2 //偶校验
#define MARK_PARITY 3 //标记校验
#define SPACE_PARITY 4 //空白校验
#define PARITYBIT NONE_PARITY //定义校验位
/*sfr P0M1 = 0x93;
sfr P0M0 = 0x94;
sfr P1M1 = 0x91;
sfr P1M0 = 0x92;
sfr P2M1 = 0x95;
sfr P2M0 = 0x96;
sfr P3M1 = 0xb1;
sfr P3M0 = 0xb2;
sfr P4M1 = 0xb3;
sfr P4M0 = 0xb4;
sfr P5M1 = 0xC9;
sfr P5M0 = 0xCA;
sfr P6M1 = 0xCB;
sfr P6M0 = 0xCC;
sfr P7M1 = 0xE1;
sfr P7M0 = 0xE2;
sfr AUXR = 0x8e; //辅助寄存器
sfr P_SW1 = 0xA2; //外设功能切换寄存器1
sbit P22 = P2^2; */
#define S1_S0 0x40 //P_SW1.6
#define S1_S1 0x80 //P_SW1.7
sbit bit9 = P2^2; //P2.2 显示UART数据位9
bit busy;
void SendData(BYTE dat);
void SendString(char *s);
void uart_init()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
P6M0 = 0x00;
P6M1 = 0x00;
P7M0 = 0x00;
P7M1 = 0x00;
ACC = P_SW1;
ACC &= ~(S1_S0 | S1_S1); //S1_S0=0 S1_S1=0
P_SW1 = ACC; //(P3.0/RxD, P3.1/TxD)
// ACC = P_SW1;
// ACC &= ~(S1_S0 | S1_S1); //S1_S0=1 S1_S1=0
// ACC |= S1_S0; //(P3.6/RxD_2, P3.7/TxD_2)
// P_SW1 = ACC;
//
// ACC = P_SW1;
// ACC &= ~(S1_S0 | S1_S1); //S1_S0=0 S1_S1=1
// ACC |= S1_S1; //(P1.6/RxD_3, P1.7/TxD_3)
// P_SW1 = ACC;
#if (PARITYBIT == NONE_PARITY)
SCON = 0x50; //8位可变波特率
#elif (PARITYBIT == ODD_PARITY) || (PARITYBIT == EVEN_PARITY) || (PARITYBIT == MARK_PARITY)
SCON = 0xda; //9位可变波特率,校验位初始为1
#elif (PARITYBIT == SPACE_PARITY)
SCON = 0xd2; //9位可变波特率,校验位初始为0
#endif
AUXR = 0x40; //定时器1为1T模式
TMOD = 0x20; //定时器1为模式2(8位自动重载)
TL1 = (256 - (FOSC/32/BAUD)); //设置波特率重装值
TH1 = (256 - (FOSC/32/BAUD));
TR1 = 1; //定时器1开始工作
ES = 1; //使能串口中断
EA = 1;
// SendString(" ");
}
/*----------------------------
UART 中断服务程序
-----------------------------*/
void Uart_Isr() interrupt 4 using 1
{
if (RI)
{
RI = 0; //清除RI位
P0 = SBUF; //P0显示串口数据
P22 = RB8; //P2.2显示校验位
}
if (TI)
{
TI = 0; //清除TI位
busy = 0; //清忙标志
}
}
/*----------------------------
发送串口数据
----------------------------*/
void SendData(BYTE dat)
{
while (busy); //等待前面的数据发送完成
ACC = dat; //获取校验位P (PSW.0)
if (P) //根据P来设置校验位
{
#if (PARITYBIT == ODD_PARITY)
TB8 = 0; //设置校验位为0
#elif (PARITYBIT == EVEN_PARITY)
TB8 = 1; //设置校验位为1
#endif
}
else
{
#if (PARITYBIT == ODD_PARITY)
TB8 = 1; //设置校验位为1
#elif (PARITYBIT == EVEN_PARITY)
TB8 = 0; //设置校验位为0
#endif
}
busy = 1;
SBUF = ACC; //写数据到UART数据寄存器
}
/*----------------------------
发送字符串
----------------------------*/
void SendString(char *s)
{
while (*s) //检测字符串结束标志
{
SendData(*s++); //发送当前字符
}
}
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