原创 key_led

//看图的时候不仔细，按键顺序乱了，不好意思

#define GPFCON (*(volatile unsigned long *) 0x56000050)
#define GPFDAT (*(volatile unsigned long *) 0x56000054)
#define GPGCON (*(volatile unsigned long *) 0x56000060)
#define GPGDAT (*(volatile unsigned long *) 0x56000064)
#define GPBCON (*(volatile unsigned long *) 0x56000010)
#define GPBDAT (*(volatile unsigned long *) 0x56000014)

/*
*LED1-4 GPF4-7
*/
#define OUT_4 (1<<(4*2))
#define OUT_5 (1<<(5*2))
#define OUT_6 (1<<(6*2))
#define OUT_7 (1<<(7*2))

/*
*KEY1: GPB6 low GPF0
*KEY2: GPB6 low GPG5
*KEY3: GPB6 low GPG3
*KEY4: GPB6 low GPG11
*KEY5: GPB7 low GPF0
*KEY6: GPB7 low GPG5
*KEY7: GPB7 low GPG3
*KEY8: GPB7 low GPG11
*/

#define IN_0 ~(3<<(0*2))
#define IN_3 ~(3<<(3*2))
#define IN_5 ~(3<<(5*2))
#define IN_11 ~(3<<(11*2))

void delay()
{
 int i, j;
 for(i=255; i!=0; i--) {
  for(j=255; j!=0; j--) {
   ;
  }
 }
}
void k1_to_k4()
{
 unsigned long dwDat;
  dwDat = GPFDAT;
  if (dwDat & (1<<0)) {
   GPFDAT |= (1<<4);
  }
  else {
   GPFDAT &= ~(1<<4);
  }
  
  dwDat = GPGDAT;
  if (dwDat & (1<<5)) {
   GPFDAT |= (1<<5);
  }
  else {
   GPFDAT &= ~(1<<5);
  }
 
  dwDat = GPGDAT;
  if (dwDat & (1<<3)) {
   GPFDAT |= (1<<6);
  }
  else {
   GPFDAT &= ~(1<<6);
  }

  dwDat = GPGDAT;
  if (dwDat & (1<<11)) {
   GPFDAT |= (1<<7);
  }
  else {
   GPFDAT &= ~(1<<7);
  }
}

void k5_to_k7()
{
 unsigned long dwDat;
  int i;
  dwDat = GPFDAT;
  if (dwDat & (1<<0)) {
   GPFDAT |= (1<<4);
  }
  else {
   for (i=10; i!=0; i--) {
    GPFDAT |= (1<<4);
    GPFDAT &= ~(1<<4);
    delay();
   }
  }
  
  dwDat = GPGDAT;
  if (dwDat & (1<<5)) {
   GPFDAT |= (1<<5);
  }
  else {
   for (i=10; i!=0; i--) {
    GPFDAT |= (1<<5);
    GPFDAT &= ~(1<<5);
    delay();
   }
  }
 
  dwDat = GPGDAT;
  if (dwDat & (1<<3)) {
   GPFDAT |= (1<<6);
  }
  else {
   for (i=10; i!=0; i--) {
    GPFDAT |= (1<<6);
    GPFDAT &= ~(1<<6);
    delay();
   }
  }

  dwDat = GPGDAT;
  if (dwDat & (1<<11)) {
   GPFDAT |= (1<<7);
  }
  else {
   for (i=10; i!=0; i--) {
    GPFDAT |= (1<<7);
    GPFDAT &= ~(1<<7);
    delay();
   }
  }
}

int main()
{
/*
*GPB6 GPB7 GPF4-7 设为OUT
*GPF0 GPG5 GPG3 GPG11 设为IN
*/
 GPFCON = OUT_4 | OUT_5 | OUT_6 | OUT_7 & IN_0;
 GPBCON = OUT_6 | OUT_7;
 
 GPGCON = IN_3 & IN_5 & IN_11;

 while(1) {
  GPBDAT = ~(1<<6) & (1<<7);
  k1_to_k4();

  GPBDAT = (1<<6) & ~(1<<7);
  k5_to_k7();

 }
 

}
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