stepper.setMaxSpeed

[Student Center]

Hello,

Hello my friends

I have been working with my micro stepping 25600 per revolution and i want to rotate at 60 RPM ,SO I CALCULATE 

60 RPM * 25600 SPR = 1536000 steps every minute, or 25600 steps per second (ONE REVOLUTION PER SECOND) 

im still using the AccelStepper.h library but need to know the speed unit for this library im already reed this page but not found clear answer http://www.airspayce.com/mikem/arduino/AccelStepper/classAccelStepper.html

since my code setup is 
stepper.setMaxSpeed(3000);
    stepper.setAcceleration(3000);

and give me very slow speed it's give me 1 revolution per about 15 second and tried to change increase or decreed the max speed value but not working 


also i have reed the each pin in arduino have specific pulse value for each pin 
http://playground.arduino.cc/Code/PwmFrequency
https://www.arduino.cc/en/Tutorial/SecretsOfArduinoPWM
http://playground.arduino.cc/Main/TimerPWMCheatsheet


and the data sheet for my motor has related info with these pulse value specifications 
like 

2.6+-20%mH/PHASE  THE MAX SPEED FOR THE MOTOR IS 700/RPM

IS THIS RELATED WITH CONTROLLING THE SPEED .


Really i can not mange these information and need to know how i can calculate the values witch matched with my motor and do the best code 

may any one help me to assigned the relative speed for my motor since i want to rotate 60 rpm ?

i have attached the information for my Processor

 
 please tell me how i can appropriate calculations for the speed 

also i need to combining these two steps in a simple one code form any help please 

 for (int x = 0; x < 2; x++)

{

 s.move(25600);s.runToPosition();delay(3000);

}  

for (int x = 0; x < 2; x++)

{

 s.move(-25600);s.runToPosition();delay(3000); 

}

Finally Thank you so much and please HELP me 

Thank you  

[gregor]

AccelStepper's speed unit is steps per second.

AccelStepper does not use PWM. 

Maximum speed depends on your Arduino. You'll probably need a Due to achieve the speed you want (see: https://groups.google.com/forum/#!msg/accelstepper/IpwyCOzZNY4/hmKfsk5KBAAJ )

[Student Center]

Thank you Mr.gregor 

please may tell me what is th subtitle speed(  the calculation method )for arduino uno since i dont plane to change my Uno now 

also advice if any simple for to combined this two steps in just one function since there are many common factor between the two steps code

 for (int x = 0; x < 2; x++)

{

 s.move(25600);s.runToPosition();delay(3000);

}  

for (int x = 0; x < 2; x++)

{

 s.move(-25600);s.runToPosition();delay(3000); 

}

Thank you 

[gregor]

speed = DESIRED_RPM * STEPS_PER_REV / 60
1 revolution per 15 seconds equals ~1700 steps / second, which is expected for an Arduino Uno. If you can do without acceleration, using setSpeed() and runSpeed() will yield a maximum speed of about 4000 steps / second, for higher speeds you will have to use a faster microcontroller (e.g. a Due)

you may be able to simplify your code like this:

//define an array of positions
uint32_t positions = [25600, 51200, 25600, 0];
int length = sizeof(positions)/sizeof(*positions);  //length of positions array

for (int i = 0; i < length; i++) {
    s.move(positions[i]);
    s.runToPosition();
    delay(3000);
}


[Student Center]

Sorry my friend there is "expected identifier before numeric constant"

[gregor christandl]

this should be correct:
uint32_t positions[] = {25600, 51200, 25600, 0};

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[Student Center]

Thank you very much Mr.gregor 

its working very good ,and please may be you recommend good reference to learn and make more function like this ,really its very very excellent function 

also really i need to control the stepper motor using frequency and pluses how i exactly know the best electric configuration for my stepper 

Thank you again