我用串口调试助手给DSP发数据，每次都少发一个是怎么回事？
nterrupt void sciaRxFifoIsr(void)
{
if(SciaRegs.SCIRXST.bit.RXWAKE==1)//
{
RdataA_Num=0;
RdataA[RdataA_Num]=SciaRegs.SCIRXBUF.all;
if(RdataA[RdataA_Num]==1)//local address
{
RdataA_Num++;
SciaRegs.SCICTL1.bit.SWRESET=0;
SciaRegs.SCICTL1.bit.SLEEP =0;
SciaRegs.SCICTL1.bit.SWRESET=1;
}
else//continue sleep
{
SciaRegs.SCICTL1.bit.SWRESET=0;
SciaRegs.SCICTL1.bit.SLEEP =1;
SciaRegs.SCICTL1.bit.SWRESET=1;
}
}
else//
{
RdataA[RdataA_Num++]=SciaRegs.SCIRXBUF.all; // Read data
}
SciaRegs.SCIFFRX.bit.RXFFOVRCLR=1; // Clear Overflow flag
SciaRegs.SCIFFRX.bit.RXFFINTCLR=1; // Clear Interrupt flag
PieCtrlRegs.PIEACK.all|=0x100; // Issue PIE ack
}
比如我发01 03 00 25 00 03 14 02 01，DSP数组RdataA[]只能收到01 03 00 25 00 03 14 02
比如我发01 03 00 25 00 03 14 02 ，DSP数组RdataA[]只能收到01 03 00 25 00 03 14
每次都少一帧
