#if SCIA_INT
/*设置中断服务程序入口地址*/
EALLOW; // This is needed to write to EALLOW protected registers
PieVectTable.TXAINT = &SCITXINTA_ISR;
PieVectTable.RXAINT = &SCIRXINTA_ISR;
PieVectTable.TXBINT = &SCITXINTB_ISR;
PieVectTable.RXBINT = &SCIRXINTB_ISR;
EDIS; // This is needed to disable write to EALLOW protected registers
/*开中断*/
IER |= M_INT9;
#endif
在这之前定义了#define SCIA_INT 0
那这段程序岂不一直都不会被编译？
如果不编译在运行过程中是否会执行呢？
初学DSP不懂，请教…… |
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楼主
