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#include "STC8A8K64D4.H"
#include <intrins.h>
#include <math.h>
typedef unsigned char u8;
typedef unsigned int u16;
//串口3
u8 T3_CNT;
u8 R3_CNT;
unsigned char xdata T3_BUF[10];
unsigned char xdata R3_BUF[10];
bit F_T3_Busy;
bit F_R3_OK;
//IO口初始化相關配置
void IO_Init()
{
P3M0 = 0x00;P3M1 = 0x00; //P37-P30 雙向口
P5M0 = 0x00;P5M1 = 0x00; //P57-P50 雙向口
P_SW2 = 0x02;
}
//-----------------------------------------------------
//--------------------串口3設置-------------------------
void Uart3_Init(void) //57600bps@6.000MHz
{
S3CON = 0x10; //8位數據,可變波特率
S3CON |= 0x40; //串口3選擇定時器3為波特率發生器
T4T3M |= 0x02; //定時器時鐘1T模式
T3L = 0xE6; //設置定時初始值
T3H = 0xFF; //設置定時初始值
T4T3M |= 0x08; //定時器3開始計時
IE2 = 0x08; //允許串口3中斷
}
// void L_S3XBL()
// {
// T3_BUF[0] = R3_BUF[0];
// T3_BUF[1] = R3_BUF[1];
// T3_BUF[2] = R3_BUF[2];
// T3_BUF[3] = R3_BUF[3];
// T3_BUF[4] = R3_BUF[4];
// T3_BUF[5] = R3_BUF[5];
// T3_BUF[6] = R3_BUF[6];
// T3_BUF[7] = R3_BUF[7];
// }
void L_S3XBL0()
{
T3_BUF[0] = 0x5A;
T3_BUF[1] = 0xA5;
T3_BUF[2] = 0x05;
T3_BUF[3] = 1;
T3_BUF[4] = 1;
T3_BUF[5] = 1;
T3_BUF[6] = 1;
T3_BUF[7] = 1;
}
//串口3 發送函數
void S3OUT(void)
{
S3BUF = T3_BUF[0];
F_T3_Busy = 1;
while(F_T3_Busy);
}
//------串口3中斷------
void Uart3_Routine(void) interrupt 17
{
//S3發送
if(S3CON & 0x02)
{
S3CON &= ~0x02;
if(T3_BUF[2]+2 > T3_CNT)
{
T3_CNT++;
S3BUF = T3_BUF[T3_CNT];
}
else
{
T3_CNT = 0;
F_T3_Busy = 0;
}
}
//S3接收
if(S3CON & 0x01)
{
S3CON &= ~0x01;
if(F_R3_OK==0)
{
R3_BUF[R3_CNT] = S3BUF;
if(R3_CNT==0)
{
if(R3_BUF[0]==0x5A)
{
R3_CNT++;
}
}
else if(R3_CNT==1)
{
if(R3_BUF[1]==0xA5)
{
R3_CNT++;
}
else
{
R3_CNT = 0;
}
}
else if(R3_BUF[2]+2 > R3_CNT)
{
R3_CNT++;
}
else
{
R3_CNT = 0;
F_R3_OK = 1;
}
}
}
}
void main(void)
{
IO_Init();
Uart3_Init();
EA = 1;
while(1)
{
//直接發送
L_S3XBL0();
S3OUT();
}
}

復制代碼

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