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