In this tutorial, I use the Lattice iCEstick FPGA board to control a TowerPro SG90 RC servo. I walk you through my generic VHDL module for controlling any RC servos that use pulse-width modulation (PWM).
Radio-controlled (RC) model servos are tiny actuators typically used in hobbyist model planes, cars, and boats. They use a special kind of PWM where the high pulse timing is critical, while the duty cycle and the duration of the low period are of less importance.
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