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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
hello; i hav read the timers and the datasheet but for the clocks, i m asking regarding the rampup i.e. even if i want to attend the 100 RPM but i will start with 10RPm i.e. lower one in that case calculations are reqd and i m searching that for the one step how much clocks are reqd in the datasheet
i want to know how to calculate the time period reqd for the clock pin to toggle from 10RPM to 100RPM
We can not help you there.
How fast the motor can accelerate without loosing steps depends completely on motor, amount of current supplied and amount of load.
You need to check the RDF calculations; often referred to as the magalar equation set.
Trying to go too fast can have a negative effect and you can find that the extra effort results in a slowdown!
A change of speed with time is called acceleration - so try searhcing for keywords "acceleration" and "stepper motor"
eg, I got this as one of my first hits: www.embedded.com/.../56800129
NB: Strictly, acceleration is a vector, as it's the rate of change of velocity with time...