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i m interfacing the stepper motor with 8051 i hav all circuitry ready but i want to know how to generate the required RPM for stepper motor EG: i want to run my motor at 60 RPM then what all calculations are required i hav taken a timer for the clock pulses but confused in the calculations do u hav any sample program for it i m using ic which has clocks pulse pin, i will be giving the clocks to that pin
Google never sleeps. Google would have produced all information you needed if YOU had bothered with spending some time. The already posted links would also have supplied you with a lot of information - but would have required READING.
This is not a forum where people are payed to answer stupid questions, and to jump whenever someone wants something! People help others FOR FREE. You make people interested in helping you by convincing us that it is a good idea to help you. Or, you do what you do: convince us that you are too whiney to deserve any help.
In short - you are one of the few who do NOT work hard! If you want to simulate a stepper motor, the ST documents already linked should have made you a champ about the inner workings of a stepper motor. They contained almost everything but magnetic field equations and equations for static and dynamic hold forces - but then again, if you had the knowledge to understand such formulas you wouldn't need help on this forum. Most people settles for precomputed diagrams in the datasheets. Four-five hours of programming and you might have had an OpenGL graphical front-end demonstrating the step-by-step (pun intended!) operation of a stepper motor.
Never claim that you work hard, when your hardest work seems to be requesting other people to supply you with information/finished work. It smells!