STC8G1K08-16pin單片機的串口2通信,始終沒有信號反應

ID:1110466 · 發表于 2024-1-31 17:10

#include "STC8G.h"
#include <intrins.h>
#include <string.h>

sbit TURN_UP = P1^1;
sbit TURN_DOWN = P1^0;
sbit TURN_LEFT = P1^6;
sbit TURN_RIGHT = P1^7;

sbit Flag_UP = P3^1; //上轉限位
sbit Flag_DOWN = P3^0;  //下轉限位
sbit Flag_LEFT = P3^3;  //左轉限位
sbit Flag_RIGHT = P3^4; //右轉限位
sbit led = P3^5;             //照明燈
sbit led_R = P5^5;    //測試

bit busy=0;
char wptr;
char rptr;
char buffer[16];
unsigned char k_recvie=0;//接受數據

unsigned int up=0,down=0,left=0,right=0;

void Delay1ms()       //@12MHz
{
unsigned char i, j;

_nop_();
_nop_();
i = 12;
j = 168;
do
{
      while (--j);
} while (--i);
}
void Delay100ms()       //@12MHz
{
unsigned char i, j;

i = 195;
j = 138;
do
{
      while (--j);
} while (--i);
}

//串口接收處理函數
void Uart2Isr() interrupt 8
{

if (S2CON & 0x02)
{
      S2CON &= ~0x02;
      busy = 0;
}
if (S2CON & 0x01)
{
            S2CON &= ~0x01;
      k_recvie= S2BUF;
            if(k_recvie==0xA0)
            {
                        up=1;
                        down=0;
                        left=0;
                        right=0;
            }
            if(k_recvie==0xA1)
            {
                        down=1;
                        up=0;
                        left=0;
                        right=0;
            }
            if(k_recvie==0xA3)
            {
                        left=1;
                        up=0;
                        down=0;
                        right=0;
            }
            if(k_recvie==0xA4)
            {
                        right=1;
                        up=0;
                        down=0;
                        left=0;
            }
            if(k_recvie==0xF2)
            {
                        up=0;
                        down=0;
                        left=0;
                        right=0;

                        TURN_UP=0;
                        TURN_DOWN=0;
                        TURN_LEFT=0;
                        TURN_RIGHT=0;
            }

}
}

void UartInit(void)       //9600bps@11.0592MHz
{
      S2CON = 0x50;       //8位數據,可變波特率
      AUXR |= 0x04;       //定時器時鐘1T模式
      T2L = 0xE0;          //設置定時初始值
      T2H = 0xFE;          //設置定時初始值
      AUXR |= 0x10;       //定時器2開始計時
      busy = 0;
}

void Uart2Send(char dat)
{
while (busy);
busy = 1;
S2BUF = dat;
}

void Uart2SendStr(char *p)
{
while (*p)
{
      Uart2Send(*p++);
}
}

void main()
{

P0M0 = 0xff; P0M1 = 0x00;
P3M0 = 0x20; P3M1 = 0x00;
      P5M0 = 0x00; P5M1 = 0x00;

      TURN_UP=0;
      TURN_DOWN=0;
      TURN_LEFT=0;
      TURN_RIGHT=0;

      UartInit();

      IE2 = 0x01;
EA = 1;
      led=1;
      led_R=0;
      Delay100ms();
      Delay100ms();

Uart2SendStr("Uart Test !\r\n");

while(1)
{

      if(Flag_UP==1&&up==1)
      {
            TURN_UP=1;
      }
      if(Flag_DOWN==1&&down==1)
      {
            TURN_DOWN=1;
      }
      if(Flag_LEFT==1&&left==1)
      {
            TURN_LEFT=1;
      }
      if(Flag_RIGHT==1&&right==1)
      {
            TURN_RIGHT=1;
      }
      Uart2Send(0x51);

}//while

}