
Chris from Pyroelectro shows us how to interface to an FPGA to allow precise control over a DC motor.
“The goal of this project is to build a simple one input, one output system that will control a motor. The control input will come from a trimpot and the FPGA or CPLD’s job will be to use the input to create the proper duty cycle PWM output to the DC motor controller. “
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http://hackedgadgets.com/2012/08/06/motor-control-using-an-fpga/