Digital poti (X9C103)

Projects Programming
1

Hi,
iam testin my brand new digital potentiometer. But somehow I stuck in some problems.
I just want to increase and decrease the resistance permanent. From 0 Ohm - 10 kOhm and back.
Therefor i wrote this sketch

int inc = 1;
int ud = 2;
int cs = 3;


void loop() //setPot (uint requestedSpeed)
  {
   // char val[2];
    //calcPulses(val,config.motorSpeed, requestedSpeed);
    digitalWrite(inc,HIGH);
    digitalWrite(cs,LOW);
    digitalWrite(ud,HIGH);
    for(int i=1;i<0;i++)
    {
      digitalWrite(inc, HIGH);   // sets the pin on
      delayMicroseconds(5000);        // pauses for 50 microseconds      
      digitalWrite(inc, LOW);    // sets the pin off
      delayMicroseconds(5000);        // pauses for 50 microseconds          
    }
    digitalWrite(inc,HIGH);
    digitalWrite(cs,HIGH);
    delay(20);
    
     // char val[2];
    //calcPulses(val,config.motorSpeed, requestedSpeed);
    digitalWrite(inc,HIGH);
    digitalWrite(cs,LOW);
    digitalWrite(ud,LOW);
    for(int i=100 ;i>99;i=-1)
    {
      digitalWrite(inc, HIGH);   // sets the pin on
      delayMicroseconds(5000);        // pauses for 50 microseconds      
      digitalWrite(inc, LOW);    // sets the pin off
      delayMicroseconds(5000);        // pauses for 50 microseconds          
    }
    digitalWrite(inc,HIGH);
    digitalWrite(cs,HIGH);
    delay(20);
  }

And the Datasheet

Hope someone could find my mistake ?!

best regards

2 
for(int i=1;i<0;i++)

What values of i will this for loop produce ?
or this one

for(int i=100 ;i>99;i=-1)