dsp的sci问题怎么是无限发送数据停不下来哪出问题了

只看该作者 · 2014-6-6 16:20

#include "DSP2833x_Device.h"    // DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h" // DSP2833x Examples Include File
#define SCI 1
#define UART_INT 0
interrupt void scibTxFifoIsr(void);

void scib_fifo_init();
void error(void);
Uint16 sdataB[6]={0x03,0x06,0x00,0x00,0x04,0x7F};
void main(void)
{
Uint16 i;
InitSysCtrl();
InitGpio();
InitSciGpio();
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
EALLOW;
PieVectTable.SCITXINTB = &scibTxFifoIsr;
EDIS;
  scib_fifo_init();
PieCtrlRegs.PIECTRL.bit.ENPIE = 1;
PieCtrlRegs.PIEIER9.bit.INTx3=1;
PieCtrlRegs.PIEIER9.bit.INTx4=1;
IFR = 0x0000;
IER = 0x100;
EINT;
  for(;;);
}

  interrupt void scibTxFifoIsr(void)
  {
Uint16 i;
for(i=0;i<6;i++)
{
   ScibRegs.SCITXBUF=sdataB[i];
}

ScibRegs.SCIFFTX.bit.TXFFINTCLR=1;  // Clear Interrupt flag
PieCtrlRegs.PIEACK.all|=0x100;
  }


void scib_fifo_init()
{

ScibRegs.SCICCR.all =0x0007;


ScibRegs.SCICTL1.all =0x0003;

ScibRegs.SCICTL2.bit.TXINTENA =1;

ScibRegs.SCIHBAUD =0x001e;
ScibRegs.SCICCR.bit.LOOPBKENA =0;
ScibRegs.SCIFFTX.all=0xC020;

ScibRegs.SCIFFCT.all=0x00;
ScibRegs.SCICTL1.all =0x0023;
ScibRegs.SCIFFTX.bit.TXFIFOXRESET=1;
ScibRegs.SCIFFRX.bit.RXFIFORESET=1;
}
void error(void)
{
asm("    ESTOP0"); // Test failed!! Stop!
for (;;);
}
//===========================================================================
// No more.
//===========================================================================
这是我自己改的，应该有很多错误，各位大神别笑话我，我是新手，帮我看下吧，我用dsp向电脑的串口助手发送数据，串口可以收到正确的数据，但是为什么会无限的收到这几个数，dsp无限发送，更笨停不下来，谁能告诉我，这是哪里的问题吗  急求！！！！