Thanks Allted, I've visited your web above. As I can learn if I using 2 motors in paralel using drv8825 with max current 2.2A, so I should use step motor rating 2.2A / 2 = 1.1A or below. Is it correct Allted ?
Next question Allted, If I apply series wiring - if I not misteke -so the current is not doubled - but the voltage should be doubled, so total power is the same.
So How the methode for setting Motor current limit, is still the same as to set single motor (Current Limit = 2xVref) ?