void setup() {
  // put your setup code here, to run once:

volatile char*dirf,*dirk;
dirf=0x30; dirk=0x107;
volatile char*outf ,*outk;
outf=0x31;
outk=0x108;
*dirf=0x03; *dirk=0x03;
volatile long i;

*outf=0x01;*outk=0x02;
for(i=0;i<1000000;i++);
*outf=0x01 ,*outk=0x01;
for(i=0;i<1000000;i++);
*outf=0x02 ,*outk=0x02;
for(i=0;i<1000000;i++);
*outf=0x02 ,*outk=0x01;



}

void loop() {
  // put your main code here, to run repeatedly:

}