51lib.c

NX25P40存储器测试程序！NX25P40与W25X40可兼容。

#include "reg52.h"
#include "51LIB.h"

#if USE_UART
#if ((Uart_MODE==1||Uart_MODE==3)&&(TimeX==1||TimeX==2))
void Init_Uart(unsigned char Th,unsigned char Tl)
{PCON|=0x80;
 SCON|=(Uart_MODE<<6)|((unsigned char)En_Mutiple<<5)|((unsigned char)En_Receive<<4);
 if(TimeX==1)
     {TMOD|=0x20;
      TH1=Th;
      TL1=Tl;
	  TR1=1;
	 }
 else if(TimeX==2)
     {T2CON = 0x3C;
	  RCAP2L = Tl;
	  RCAP2H = Th; 
	  TL2 = Tl;
	  TH2 = Th;
	  TR2 = 1;
	 }
 if(En_Interrupt)
    ES = 1;
 EA=1;
}
#else
   #error Please check MODE or TimeX setup of Uart
#endif

#if USE_UART_LIB
char putchar (char c)  {
  REN=TI = 0;
  SBUF = c;
  while (!TI);
  TI = 0;
  if (c == '\r')  {
    SBUF = '\n';
	while (!TI);
    TI = 0;
  }
  if (c == '\b')  {
    SBUF = ' ';
    while (!TI);
    TI = 0;
	SBUF = '\b';
	while (!TI);
    TI = 0;
  }
 REN=1;
 return SBUF;
}
#else 
char putchar (char c)
{c=c;return 0;}
#endif
#endif
#if USE_TIME
void Init_TCX(unsigned char TC_PORT,unsigned char TC_MODE,unsigned char th,unsigned char tl,bit TC )
{if(TC==0)
    {if(TC_PORT==0)
       {TMOD&=0xf0;TMOD|=TC_MODE;
        TH0=th;TL0=tl;ET0=1;TR0=1; 
       }
     else if(TC_PORT==1)
       {TMOD&=0x0f;TMOD|=TC_MODE<<4;
        TH1=th;TL1=tl;ET1=1;TR1=1;
       }
	EA=1;
	}
 else 
    {if(TC_PORT==0)
       {TMOD&=0xf0;TMOD|=(TC_MODE|(unsigned char)TC<<2);
        TH0=0;TL0=0;TR0=1; 
       }
     else if(TC_PORT==1)
       {TMOD&=0x0f;TMOD|=((TC_MODE<<4)|(unsigned char)TC<<2);
        TH1=0;TL1=0;TR1=1; 
       }
	EA=1;
	}
}
#if USE_TIME_LIB
void Close_TC(unsigned char port)
{if(port==0)TR0=0;
 else if(port==1)TR1=0;
} 

unsigned int Read_TC(unsigned char port)
{unsigned int value=0;
 if(port==0){value=(unsigned int)((TH0&0xff)<<8|TL0);TH0=TL0=TR0=0;}
 else if(port==1){value=(unsigned int)((TH1&0xff)<<8|TL1);TH1=TL1=TR1=0;}
 return value;
}
#endif
#endif