Help with a stepper motor IC

I took apart a couple office printers and got several stepper motors, which is great for electronics projects. the problem I am having is with driving them. Also from the same printer I got each of the IC's that ran each of the stepper motors, in my haste to get the parts, I took them off the boards they were on, so I don't know how they worked them exactly.

Thats when I thought, oh I will just look up the data sheets, and I have tried for several days to figure out how to get it to work

So the parts I have are as follows
several Unipolar 6-wire stepper motors none of which i can find a datasheet for (some offbrand japanese companies)
several STK672-532 Stepper Motor IC's (that I don't know how to drive)
a couple STK672-110 Stepper Motor IC's (also don't know how to drive, but easier than the 532)
and an arduino

I have searched through many arduino forums and I am pretty sure I have the right code (though not positive). where you send a high signal followed by a short delay (about 1 millisecond) then drop the high signal, repeated several times. the best I got using the STK672-110 was the stepper motors vibrating (I know I have the stepper motor hooked up to the IC chip correctly, I opened it up and found the center tap wires, then used a voltmeter to find the windings that matched)

This is the link for the STK672-110 datasheet
http://www.pcbheaven.com/datasheet/stk672_110.pdf

and this is the link for the STK672-532 datasheet
http://www.onsemi.com/pub_link/Collateral/ENA2111-D.PDF

the arduino code I am using is as follows
void setup() {
pinMode(9, OUTPUT);
pinMode(4, OUTPUT);
pinMode(3, OUTPUT);


digitalWrite(3, LOW);
digitalWrite(4, HIGH);
}

void loop() {
digitalWrite(9, HIGH);
delay(1);
digitalWrite(9, LOW);
delay(1);
}

I have the clock pin connected to 9 on the arduino
3 is connected to the CWB (the direction pin i think)
and 4 is connected to the enable pin( i have tried sending and not sending a signal to this and it doesn't seem to change anything)

I set each of my circuits up on a bread board just as the example setup in each datasheet showed, and I cannot get the stepper motors to move more than just vibrating.

Any help you can offer would be great! Thanks

 

Well, I have the STK672 chips, which are stepper motor driver IC's. unless there is something I missed, on the datasheet for those chips, the arduino only needs to send the clock signal to IC and then the IC takes care of sending the correct 5-24v (depending on the stepper) to the correct pins, be it the A,AB,B,BB wires.

I am not running the stepper motor on just the arduino, the arduino is sending signals to the STK672, and the STK672 is supposed to drive the Stepper

 

I know which 2 wires are the center taps, of the 6, and the way I had it set up, is the arduino's ground and the 12v ground I had connected to the same rail on a bread board, then the 12v (24v in the datasheet) connected to the center taps.

when you say +ve supply rail, do you mean the 12v I have besides the arduinos 5v?

 

I used a voltmeter to check which of the remaining 4 wires (besides the center taps) were connected. So I know which wires are A, A centertap, AB, B, B centertap, and BB. So I know I have them connected to the IC correctly. I guess I am just wondering if the code is right for how the chip looks like its supposed to be run

 

The CWB pin is just a direction pin, and the MODE is for half stepping compared to full stepping. I do not think that they need to be set.

But just in case, I tried every combination of on/off when running my code, and it didn't change anything.

So, yes I had them connected, and I am pretty sure that at least for some time that they were set correctly during my tests

 

Yes, also the faster I send the high then low signals the faster it vibrates