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It's simple. I suppose you use IAR. In init function put
IE1|=UTXIE0 | URXIE0;
__enable_interrupts();
I give you some indications about to write a data buffer of fixed size:
declare a global scope variable volatile short sizetx
declare a global scope char array (buffertx)
declare a global...
difference unipolar bipolar stepper motar
The main difference is the driving method: in bipolar stepper motor you have two coils so 4 wires and you need an H-bridge driver to be able to change current direction into the coils; in unipolar motors the two coils are divided in two parts each...
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