Your link says that your motor draws 2.5 amps. That is well beyond the capability of a DRV8825. I suggest you get a stepper driver than can handle at least 4 amps to give a bit of headroom.
200 * 32 = 6400
The AccelStepper library may not be able to operate fast enough for your microstepping. 200 RPM = 3.33 rps and at 6400 steps per revolution you would need a step rate of 21120 steps per second.
It is not difficult to write your own stepper code. Have a look at the second example in this Simple Stepper Code. And it is not difficult to write your own acceleration code.
There is nothing wrong with your English, but there is a Dutch section of the Forum if you would prefer it.
...R
Stepper Motor Basics