I´ve been working with the L6470 Chip.. SparkFun AutoDriver - Stepper Motor Driver (v13) - BOB-13752 - SparkFun Electronics so I have a couple of questions..so hope that you could help me.. First all worked preatty good. I was able to running with very good and fast with velocity values( 6000 steps/sec). with these motor.. 42BYGH40(M)-160-4A NEMA 17 Bipolar 5.18:1 Planetary Gearbox Stepper - 3317_0 at Phidgets v Power Supply: 12V 15 amps. My Issue: I tested the chip with this other motor : http://www.mechapro.de/shop/product_info.php?language=en&products_id=182 and now the motor runs Max in 1000 steps/second.. .very slow .I configured the CONFIG register with the default values. KVAL RUN,ETC ETC. also i wrote it other values but I d?nt see other behaivor.. The other problem and I cann not drive so fast the other motor(Phidgets) again.... Could you say me your experience or a litte trick.. What Kind of motor could i drive.. Thanks..,
Best Regards..
Edy