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Pulse-width Modulation LED Dimmer – Part 2: Simulation
In this part, I’ll show how I built a self-checking testbench to verify the PWM logic. After we make the testbench, we’ll load it up in ModelSim and make sure everything works as expected.
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Pulse-width Modulation LED Dimmer – Part 1: VHDL Design
Like many FPGA beginners, one of my first tutorials was the classic “turn on an LED” project. While a great starting point, I wanted to explore further. I also found the LED far too bright! This led me to design an LED “dimmer”…