sent.#3

在c8051f020上实现的控制无线模块nrf401和程序

//-----------------------------------------------------------------------------

#include <c8051f020.h>                 // SFR声明
#include <stdio.h>
#include <string.h>

//-----------------------------------------------------------------------------
// sfr定义及全局常量
//-----------------------------------------------------------------------------
#define SYSCLK       22118400          // 系统时钟为22118400HZ
#define BAUDRATE    16000      // UART0 波特率为19200HZ
//#define TX_LENGTH    16                // 接收缓冲器长度为16

   
sfr16 DP       = 0x82;                 // 数据指针
sfr16 TMR3RL   = 0x92;                 // Timer3 reload value
sfr16 TMR3     = 0x94;                 // Timer3 counter               
sfr16 RCAP2    = 0xca;                 // Timer2 capture/reload
sfr16 T2       = 0xcc;                 // Timer2
sfr16 RCAP4    = 0xe4;                 // Timer4 capture/reload
sfr16 T4       = 0xf4;                 // Timer4                    
sbit PWR= P0^3;                       //P0.2 =1 为工作模式;P0.2=0为待机模式
sbit CS = P0^2;                        //P0.3=0为频道1,载波频率为433MHZ
                                       //P0.3=1为频道2,载波频率为315HZ
sbit TXEN = P0^4;                      //P0.4=0为接收模式,P0.4=1为发射模式
sbit LED = P1^6 ;                       //LED显示发射状态
int i=0;
int m=0;
int j=0;
int k=0;
int n=0;
int p=0;
xdata char sendhead[]={0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,
                       0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,
					   0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa,0xaa};
xdata char senddata[100]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,
                         0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,0x10,0x11,0x12,0x13,
						 0x14,0x15,0x16,0x17,0x18,0x19,0x1a,0x1b,0x1c,0x1d,
						 0x1e,0x1f,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,
						 0x28,0x29,0x2a,0x2b,0x2c,0x2d,0x2e,0x2f,0x30,0x31,
						 
						 0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0x3a,0x3b,
                         0x3c,0x3d,0x3e,0x3f,0x40,0x41,0x42,0x43,0x44,0x45,
						 0x46,0x47,0x48,0x49,0x4a,0x4b,0x4c,0x4d,0x4e,0x4f,
						 0x50,0x51,0x51,0x52,0x53,0x54,0x55,0x56,0x57,0x58,
						 0x59,0x5a,0x5b,0x5c,0x5d,0x5e,0x5f,0x60,0x61,0x62}; //-----------------------------------------------------------------------------
// 全局变量
//-----------------------------------------------------------------------------
//unsigned char xdata sentdata[108]={
  	//存储空间定义成idata使用内部RAM
//unsigned char code *read;             //读FLASH
//char idata TX_Buf[TX_LENGTH];         //发送缓冲区长度

//-----------------------------------------------------------------------------
// 函数声明
//-----------------------------------------------------------------------------

void SYSCLK_Init (void);            //系统时钟初始化函数声明
void PORT_Init (void);              //端口初始化函数声明
void UART0_Init (void);             //UART初始化函数声明
void UART0_ISR (void);              //UART中断服务程序声明
//void SENT_Head (void);
void SENT_Datapacket (void);

//---------------------------------------------------------------------------
//发送函数
//---------------------------------------------------------------------------

//----------------------------------------------------------------------------
//主函数
//----------------------------------------------------------------------------
void main(void)
{  
   WDTCN = 0xde;        //禁止看门狗定时器           
   WDTCN = 0xad; 
   
               
   SYSCLK_Init ();
   PORT_Init ();
   UART0_Init ();
   PWR = 1;                  //置nRF401为工作模式
   CS = 0;  
    for(k=0;k<1000;k++)
    {for(i=0;i<100;i++);}                 //选择载波频率为433MHZ
   TXEN = 1; 
   i=0;
   k=0;
   for(k=0;k<1000;k++)
    {for(i=0;i<100;i++);}              
   EA = 1 ; 
   ES0=1;
   LED=1;   
                     //绿灯亮表示开始发送数据                    //允许全局中断
    
   RI0=0 ;
   TI0=0;
   //SBUF0=0xaa;
  // TI0=1 ;  
   while (1) //TI0=1; 

 {
	 for(p=0;p<30;p++)
	 {
	  SBUF0=sendhead[p];
	  while(TI0==0);
	  TI0=0;
	  }
	 	for(m=0;m<100;m++)
	  {
      SBUF0=senddata[m];
	  while(TI0==0);
       
	   TI0=0;
	  //for(n=0;n<50000;n++);  
		} 
		p=0;
		m=0;                    //开始发送
      // if(m==20)
	//	m=0;                //死循环,等待中断防止程序逻辑执行到此跳出,
     }                              //接收不到中断，中断到来时根据中断向量表直
								   //接跳到中断服务程序来执行，执行完再返回到
//-----------------------------------------------------------------------------
//时钟初始化
//-----------------------------------------------------------------------------                   
								   //while(1);这条语句上来继续等待下一个中断。
}
void SYSCLK_Init (void)
{
   int i;                              // 延时计数

   OSCXCN = 0x67;                      // 使用外部时钟22.1184MHz                                   

   for (i=0; i < 256; i++) ;           // 等侍晶振起振

   while (!(OSCXCN & 0x80)) ;          // 等待晶振稳定
   OSCICN = 0x88;                      // 选择外部晶振作为系统时钟
                          
   //CKCON  = 0x20;                      //定时器2使用系统时钟	
}                    				    
//-----------------------------------------------------------------------------
// 交叉开关配置
//-----------------------------------------------------------------------------
//

void PORT_Init(void)
{  
   XBR0    = 0x04;    //使能UART0
   XBR1    = 0x00;    
   XBR2    = 0x40; 
   P0MDOUT |= 0xFD;   //RX,即P0.1为漏极开路方式,其它为推挽方式 
   P1MDOUT |= 0x40;   //p1.6为推挽方式       

  	
}
//--------------------------------------------------------------------------------------
//UART初始化
//--------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------
//UART初始化
//--------------------------------------------------------------------------------------
void UART0_Init (void)
{
	
	SCON0=0x50;
	TMOD=0x20;
	TH1=-(SYSCLK/BAUDRATE/16);
	TR1=1;
	CKCON |=0x10;
	PCON  |=0x80;
	//TI0=1;
 
 }
 
 

//------------------------------------------------------------------------------------
//UART中断服务程序,中断向量4
//------------------------------------------------------------------------------------
//void UART0_ISR (void) interrupt 4 using 3
//{  
  //    if(j==20)
	//	 {
		    //for(m=0;m<1000;m++);
	//		j=0;
      //   }
     
	
	 //    SBUF0=senddata[m];
	//	 m++;
		 
	 
//}