Question

dsp与pc机的sci通信，一台电脑与dsp连接，另一台与dsp串口连接，串口调试助手怎么会无限接收到这几个数据

#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.
//===========================================================================
这是什么问题，怎么dsp会无限的发送数据呢
在另一台电脑的串口调试助手会接受到正确的数据，但是会一直接收这几个数据，怎么是无限循环呢，程序的问题出在哪了 求解释啊！！！！

Answer 1

你好，很有可能是通信线接反了