FPGA Piano

Explore the FPGA piano system target, a seven-key FPGA board with a buzzer that plays notes when keys are pressed and supports simultaneous input, with a future speaker upgrade.

This lecture explains selecting a passive buzzer for an FPGA piano, and demonstrates how a 50 megahertz clock is divided to make buzzing tones, tested with ModelSim and wiring.

Analyze the FPGA piano system architecture, outlining the buzzer, key, and led modules and their gpi/gpo interfaces. Describe how clock and reset signals synchronize key presses, releases, and tone playback.

Explore the buzzer module status machine for the FPGA piano, detailing idle and pressed states, key-driven buzzer control, and a clock divider that generates distinct frequencies for different keys.

Develop a buzzer module by implementing a clock divider and a two-state buzzer controller driven by seven key inputs to generate frequencies.

This lecture guides you through building a buzzer test bench, configuring a 50 megahertz clock (20 ns), defining key signals, and simulating key presses and releases to verify frequency outputs.

Explore a seven-key status machine in an FPGA piano that reads key values from the key GPL interface, uses 3.3 V pull-ups, and models idle, field zero, and press/release transitions.

Design and implement a one key module for the FPGA piano, using a clocked state machine with idle, field, and done states, and synchronized age signals and a 20-minute timer.

Design and simulate a one key module for the FPGA piano with a test bench, defining timescale, clock generation, and GPIO signals, including bouncing and on/off outputs.

Develop and test a seven-key FPGA module (keys zero to six) that decodes the key value and outputs key-on and key-off signals with a single always block and case statement.

Explore the key module solution simulation, defining timescale, clock, and interface signals, and validate key on, key off, and key release through a test bench.

Modify the key module to form key module two from solution one, update seven-bit inputs, and implement a decode task in Visual Studio Code to interpret key presses.

Explore key module solution 2 simulation using a test bench, configure clock and reset signals, analyze key press and release, compare with solution 1, and set up a ModelSim project.

Explore a simple LED module status finite state machine with an LCD interface, handling key on/off signals and transitions between idle, pressed, and release states.

Set up a verilog led module in an fpga project using visual studio code, define clock and reset, and implement a simple finite state machine with idle and active states.

Simulate the led module using a test bench, define timescale and clock, implement a reset and key-press signals, and verify clocked signal transitions during timed presses.

Learn to implement the FPGA piano top module by defining the interface, clock and reset, building the key module with input/output signals, and setting up a test bench.

Explore top module simulation for the FPGA piano by building a key module test bench to verify clocks, resets, key events, and generated tone frequencies.