ioport unsigned int *ADCCTL1=(unsigned int *)0x6800;
ioport unsigned int *ADCDATA1=(unsigned int *)0x6801;
ioport unsigned int *ADCCLKDIV1=(unsigned int *)0x6802;
ioport unsigned int *ADCCLKCTL1=(unsigned int *)0x6803;
#define ADCCTL (*ADCCTL1)
#define ADCDATA (*ADCDATA1)
#define ADCCLKDIV (*ADCCLKDIV1)
#define ADCCLKCTL (*ADCCLKCTL1)
求解上述语句什么意思? 还有就是(unsigned int *)什么意思?有时候还有*(unsigned int *)这又是什么意思?谢谢各位大侠了! |