1/*---------------------------------------------------------------------*/
/* --- STC MCU Limited ------------------------------------------------*/
/* --- STC15F4K60S4 ϵ?? ??ʱ??2????????1?IJ????ʷ?????????------------*/
/* --- Mobile: (86)13922805190 ----------------------------------------*/
/* --- Fax: 86-755-82905966 -------------------------------------------*/
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/* ???Ҫ?ڳ?????ʹ?ô˴???,???ڳ?????ע??ʹ???˺꾧?Ƽ??????ϼ?????   */
/* ???Ҫ????????Ӧ?ô˴???,??????????ע??ʹ???˺꾧?Ƽ??????ϼ?????   */
/*---------------------------------------------------------------------*/

//??ʾ????Keil????????????ѡ??Intel??8058оƬ?ͺŽ??б???
//?ٶ?????оƬ?Ĺ???Ƶ??Ϊ18.432MHz

//#include "reg51.h"
#include "system.h"



void uart_print()
{
    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;                //8λ?ɱ䲨????
#elif (PARITYBIT == ODD_PARITY) || (PARITYBIT == EVEN_PARITY) || (PARITYBIT == MARK_PARITY)
    SCON = 0xda;                //9λ?ɱ䲨????,У??λ??ʼΪ1
#elif (PARITYBIT == SPACE_PARITY)
    SCON = 0xd2;                //9λ?ɱ䲨????,У??λ??ʼΪ0
#endif

    T2L = (65536 - (FOSC/4/BAUD));   //???ò???????װֵ
    T2H = (65536 - (FOSC/4/BAUD))>>8;
    AUXR = 0x14;                //T2Ϊ1Tģʽ, ????????ʱ??2
    AUXR |= 0x01;               //ѡ??ʱ??2Ϊ????1?IJ????ʷ?????
    ES = 1;                     //ʹ?ܴ???1?ж?
    EA = 1;

 //   SendString("STC15F2K60S2\r\nUart Test !\r\n");
   // while(1)
		
		{
			SendString("STC15F2K60S2\r\nUart Test !\r\n");
		}
}

/*----------------------------
UART ?жϷ??????
-----------------------------*/
void Uart() interrupt 4 using 1
{
    if (RI)
    {
        RI = 0;                 //???RIλ
   //     P0 = SBUF;              //P0??ʾ????????
    //    P22 = RB8;              //P2.2??ʾУ??λ
    }
    if (TI)
    {
        TI = 0;                 //???TIλ
        busy = 0;               //??æ??־
    }
}

/*----------------------------
???ʹ???????
----------------------------*/
void SendData(BYTE dat)
{
    while (busy);               //?ȴ?ǰ??????ݷ??????
    ACC = dat;                  //??ȡУ??λP (PSW.0)
    if (P)                      //????P??????У??λ
    {
#if (PARITYBIT == ODD_PARITY)
        TB8 = 0;                //????У??λΪ0
#elif (PARITYBIT == EVEN_PARITY)
        TB8 = 1;                //????У??λΪ1
#endif
    }
    else
    {
#if (PARITYBIT == ODD_PARITY)
        TB8 = 1;                //????У??λΪ1
#elif (PARITYBIT == EVEN_PARITY)
        TB8 = 0;                //????У??λΪ0
#endif
    }
    busy = 1;
    SBUF = ACC;                 //д???ݵ?UART???ݼĴ???
}

/*----------------------------
?????ַ???
----------------------------*/
void SendString(char *s)
{
    while (*s)                  //????ַ?????????־
    {
        SendData(*s++);         //???͵?ǰ?ַ?
    }
}