ledtest.c

6711a板程序的傅立叶变换

#define SW_IN  0x90202014
#define LED    0x90202018
#define CECTL1	            *((long *)0x01800004)
main()
{
	int i;
	CECTL1=0xfffff3f23;	
    for(;;)
    {
      i=*(int *)SW_IN;
      *(int *)LED=i&0xf0000000;  
      //*(int *)LED&=0xffffffff;
    
    }
}