实现dsp28335的串口通信程序
EALLOW; // This is needed to write to EALLOW protected registers
PieVectTable.SCIRXINTA = &sciaRxIsr;
PieVectTable.SCITXINTA = &sciaTxIsr;
PieVectTable.SCIRXINTB = &scibRxIsr;
PieVectTable.SCITXINTB = &scibTxIsr;
EDIS; // This is needed to disable write to EALLOW protected registers
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