controlling stepper motors

[armess]

stepper motor l297 + atmel

I have studied about the logic of controlling unipolar stepper motors.
Can anybody tell me how to control them using ATMEL microcontrollers?
Plz help me in writing the code for the same.

 

[yousafzai]

l296 stepper

There is a chip L296/L297.This is used for driving stepper motors.Just download the datasheets and it will give a very easy way to interface your avr micro to a stepper motor.

 

[armess]

l297/298 stepper motor

But as far as i know they can only control bipoar stepper motors.

 

[ace1903]

You can use four bipolar transistor and one look up table and one delay routine.
L297/L298 is expensive solution comared to four trasistors and few lines code.

 

[thelectronics]

you better look at the following site for the stepper motor contrlling along with the code (assembly)
**broken link removed**

 

[mezo]

you will need to use a chip called L298 which is a bridge called H-bridge
it is expensive it is about 25L.E , and only works with bidirectional stepper motors

 

[armess]

I HAVE A BASIC DOUBT.
Aren't L297/L298 ICs only meant to control bipolar stepper motors???????
Mine is a unipolar one.

 

[vijaya_narayana]

go for mazid book ,There is a detailed example given for interfacing steper motor i think it will be use full


vijay

 

[eng_mahmoud87]

i think u shoud read mazidi book about atmel 8051 but if u need control by pic i posted a pdf about stepper motor and pic 118cxx

 

[Kurenai_ryu]

you can use an ULN2003 or ULN2803... nice for unipolar step-motors...

 

[nandhu015]

Regarding L297 &298

I think they can handle both unipolar and bipolar

Please check out the datasheets

Nandhu