c8051f340.c

cf初始化程序（包括串口初始化和端口初始化）

#include<c8051f340.h>
#include <stdio.h>
sbit TXD=P0^4;
sbit RXD=P0^5;
#define uchar unsigned char
char code tab[]={0xFC,0x60,0xDA,0xF2,0x66,0xB6,0xBE,0xE0,0xFE,0xF6};

void portInitiate(void)
{
  unsigned int i;
  XBR0=0X01;      //输入输出端口功能选择寄存器
  XBR1=0X70;
  XBR2=0X00;
  P0SKIP=0X0C;   //
  P1SKIP=0X31;
  P2SKIP=0Xff;
  P3SKIP=0Xff; 
  //EMI0CN=0XFF;    //外部存储器控制器
  EMI0CF=0x05;
  EMI0TC=0X6D;
  VDM0CN=0X80;    //VDD寄存器
  RSTSRC=0X01;    //复位源寄存器
  PCA0MD=0X88;    //关闭看门狗
    OSCXCN=0xE7;
    for (i=0;i<3000;i++);  // Wait 1ms for initialization
    while ((OSCXCN & 0x80) == 0);
	{
    //OSCICN    = 0x00;
    OSCICL=0X00;
    CLKMUL=0x02;
    CLKSEL=0x20;
	}
	P0MDIN=0XFE;
  P0MDOUT=0XD3;   //输出方式寄存器
  P1MDOUT=0XCE;
  P2MDOUT=0XFF;
  P4MDOUT=0Xff;
  P3MDOUT=0XFF;
}

void chuankouInitiate(void)
{
    SCON0=0X50;
	PCON=0X00;
	TCON=0X40;
	TMOD=0X20;
	TH1=0Xb8;
    TL1=TH1;
	CKCON=0XFB;
}

void delay(uchar n)
{
  uchar i;
  unsigned int j;
  for(i=0;i<n;i++)
  {
    for(j=0;j<1000;j++);
  }
}

void main(void)
{
  portInitiate();
  chuankouInitiate();
  while(1)
  { 
    P4=0Xa0; 
	delay(30);
	P4=0x50;
    delay(30);
	TI0=0;
	SBUF0=tab[5];
	while(TI0==0){};
	delay(30);
  }
}