Tag Archives: beginner

Papilio One : Flashing an LED at a specific frequency

To flash an LED at a specific frequency we need to divide the input clock frequency. In VHDL this can be done using counters. The Papilio One FPGA board comes with a 32MHz oscillator. 32Mhz means 32 million pulses per … Continue reading

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Papilio One FPGA board , using a switch to turn on an LED

Put this together just to start learning a bit about VHDL coding. The logic is simple, if input P4 (the switch) is low, output P3 (the LED) is high, and vice versa. The circuit diagram is shown below:

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