====== QKI-SPS100 (SPI STEPPER) ======

===== *** WARNING *** =====
You must power the rails that have this Kard installed with +24V before applying USB power, if you apply USB and +24V at the same time or USB power first you risk blowing this Kard.  This is due to SPI of the L6472 not working properly without high voltage applied to the chip.
===== *** WARNING *** =====

{{:kards:plpb-0051-rev-x3.pdf|SPI Stepper Kard PCB Schematic Rev X3}}

The dSPIN chip on a Kard for the Quick240.  This uses SPI to communicate with the ST L6472

{{:kards:spi-stepper-back-small.jpg?direct|}}
{{:kards:spi-stepper-front-small.jpg?direct|}}

==== Kard GPIO Pin to Rail Pin Map ====
^Kard GPIO Pin^REV-X3^Kard 0 Pin^Kard 1 Pin^Kard 2 Pin^Kard 3 Pin^Kard 4 Pin^Kard 5 Pin^
|gpio 0|STEP CLOCK|68|57|86|22|23|78|
|gpio 1|SPI CS (active low)|58|56|64|76|39|79|
|gpio 2|RESET (active low)|62|63| 5| 9| 8|10|
|gpio 3|BUSY (is the motor moving)|55|54|70| 2|21|20|
|gpio 4|FLAG|82|83|84|35|34|33|

^Rail Pin^REV X3^
|CxP0|Stepper Phase A+|
|CxP1|Stepper Phase B+|
|CxP2|Stepper Phase B-|
|CxP3|Stepper Phase A-|
|+VA/+VB (+VRAIL)|+24VDC|
|-VA/-VB (-VRAIL)|GND|

{{:kards:motorconnections.png?direct|}}