CC2530 数据收发，中断只能实现一次。

ninesuns02 2013-06-05 09:27:42

各位仁兄，我想通过最低层的寄存器操作，在节点1上发送数据，在节点2上通过中断读取数据。可是，现在的问题是，节点2只能发生一次中断，通过调试，可知这次中断中读到的数据是正确的，但之后再没有中断发生。请大侠帮我看看是什么地方的问题。节点1和节点2的程序如下，节点1发送，2接收。



#include "ioCC2530.h"

#define led1 P1_0

#define led2 P1_4



#define uint8   unsigned char

#define uint16  unsigned int



#define RF_FCF_NOACK    0x8841   //不要求应答

#define RF_FCF_ACK      0x8861  //要求接收方发送应答帧

#define RF_NOACK_FLAGE  1       //不要求应答标志

#define dest_PanID      0x0001

#define dest_Addr       0x0001

#define src_PanID       0x0001

#define src_Addr        0x0002



static uint8 RfPktHdr_Length=12;

static uint8 buf[128];

uint8 len=0;      //帧长度

static uint8 Len_Frame=0;   //帧长度

static uint8 rxMpdu[128];   //帧数据



typedef struct {

    uint8   packetLength;   //包的长度

    uint8   fcf0;           // Frame control field LSB帧控制域低字节

    uint8   fcf1;           // Frame control field MSB帧控制域高字节

    uint8   seqNumber;      //序列号

    uint16  destPanId;      //目的PANID

    uint16  destAddr;       //目的地址

    uint16  srcPanId;       //源PANID

    uint16  srcAddr;        //源地址

    

} RfPktHdr_t;



void tx();

void delay(uint16 time)

{

  uint16 i,j;

  for(i=0;i<=time;i++)

  {

    for(j=0;j<=200;j++)

    {}

  }

    

}



void rf_init()//初始化

{

	FRMCTRL0 |= (0x20 | 0x40); /* AUTO_ACK | AUTO_CRC */



	TXFILTCFG = 0x09;

	AGCCTRL1 = 0x15;

	FSCAL1 = 0x00;



	/* enable RXPKTDONE interrupt */

	RFIRQM0 |= (1<<6);

	/* enable general RF interrupts */

	IEN2 |= (1<<0);



	FREQCTRL = 0x0b; /* channel 11 */



	SHORT_ADDR0 = 0x05;

	SHORT_ADDR1 = 0x00;

	PAN_ID0 = 0x22; /* MUST set, or even can't receive broadcast message  */

	PAN_ID1 = 0x00;



	RFST = 0xed; /* ISFLUSHRX */   //  

        RFST=0xEC;

	RFST = 0xe3; /* ISRXON */

        delay(120);

        FRMFILT0&=~(1<<0);//禁止帧过滤

          RFST = 0xEC;//ISFLUSHRX()

        RFST = 0xE3;//ISRXON()



}



#pragma vector=RF_VECTOR

__interrupt void rf_isr(void) //节点2中的主要功能函数

{

	unsigned char e, i;

       

	e = EA;

	EA = 0; /* disable global interrupt */



	if (RFIRQF0 & (1<<6)) {

		len = RFD;

		len &= 0x7f;

		for (i = 0; i < len; i++) {

			buf[i] = RFD;

		}

                buf[i]='\0';

                led1 =!led1;



	}

        RFIRQF0 &= ~0x40; /* clear RXPKTDONE interrupt */

	S1CON &=~0x03; /* clear general RF interrupt flag */

	// IEN2 &=~(1<<0);

        RFST=0xEC;

	EA = e; /* restore global interrupt state */

       // tx();

}



uint8 MakeFrame(uint8 *data,uint8 length,uint8 seqNumber)//节点1发送前组帧

{

   RfPktHdr_t *RfHead;//帧头

    uint16 fcf;

   uint8 i;

   RfHead=(RfPktHdr_t*)rxMpdu;

   Len_Frame=RfPktHdr_Length+length;//帧的长度

   RfHead->packetLength=Len_Frame;

   fcf=(RF_NOACK_FLAGE) ? RF_FCF_NOACK : RF_FCF_ACK;

   RfHead->fcf0= fcf & 0xff;

   RfHead->fcf1= (fcf>>8) & 0xff;

   RfHead->seqNumber=seqNumber;

   RfHead->destPanId=dest_PanID;

   RfHead->destAddr=dest_Addr;

   RfHead->srcPanId=src_PanID;

   RfHead->srcAddr=src_Addr;

   for(i=0;i<length;i++)

   {

     rxMpdu[RfPktHdr_Length+i]=data[i];//帧数据中接入实际数据

   }

   return Len_Frame;

   

   

}



void tx()//发送函数

{

	unsigned char i;



	RFST = 0xe3; /* ISRXON */

	/* wait for SFD not active and TX_Active not active */

	while (FSMSTAT1 & ((1<<1) | (1<<5))); /* TX_ACTIVE | SFD */

	RFIRQM0 &= ~(1<<6); /* disable RXPKTDONE interrupt */

	IEN2 &= ~(1<<0); /* disable general RF interrupts */



	RFST = 0xee; /* ISFLUSHTX */

	RFIRQF1 = ~(1<<1); /* clear TXDONE interrupt */

	//RFD = 0xA7; /* the first byte to TX is the length of the frame */

	for (i = 0; i < len; i++) {

		RFD = rxMpdu[i];

	}



	/* trun on RX interrupt */

	RFIRQM0 |= (1<<6);

	IEN2 |= (1<<0);



	RFST = 0xe9; /* ISTXON */

	while (!(RFIRQF1 & (1<<1))); /* waiting for transmission to finish */

	RFIRQF1 = ~(1<<1); /* clear TXDONE interrupt */

 

}



void main(void)

{

        uint16 i=0;

        uint16 j=0;

	P1SEL  &= ~(1<<0);             //P1为普通 I/O 口

         P2SEL  &= ~(1<<0);

        P1DIR |= 0x01;             //P1.0  输出

         led1=0;

        EA = 0;

	/* set main clock source to 32MHz */

	SLEEPCMD &= ~0x04;

	while(!(SLEEPSTA & 0x40));

	CLKCONCMD &= ~0x47;

	SLEEPCMD |= 0x04; 

        buf="123421321414141244";

	rf_init();

	

        

        len=MakeFrame(buf,18,0);

        EA = 1; /* enable global interrupt */

       

	while(1) {

           /******************下面这些程序是发送节点1中的**************/

			//led1=!led1;

                        tx();

                        for(i=0;i<10000;i++){

                            for(j=0;j<=100;j++)

                            {}

                        }

            /******************上面这些程序是发送节点1中的**************/

	}

}