FPGA

This repository contains Verilog/C projects with Tang Nano (4K/9K/20K) and Zybo Z7.

Featured Project: Enhanced UART Communication

The core of this project is a UART module that receives and transmits data asynchronously. I've built upon the original tutorial by adding custom Verilog code that enables LED blinking patterns triggered by specific serial inputs.

Key Contributions:

• Character-based LED Control: The FPGA can receive 'A', 'B', or 'C' to trigger different LED blinking patterns.
• Sequence-based LED Control: A more complex implementation where a specific sequence of characters ('ABC') must be received to trigger the LEDs.
• State Diagrams: The logic for these contributions is visually documented with state diagrams, which can be found in the project's README.md.

You can find the project files and detailed explanations in the UART directory.

Other Projects

Project	Description	Hardware	Toolchain	Links
vivado	Baremetal Software project with Vivado/Vitis and Zybo Z7 mainly with C. Find various implementations of C for LED-BTN combinations with randomness and different blinking periods.			📖 Tutorial
fpga_project	Several simple implementations for Tang Nano 9K: original blinky, simple functions with Verilog, pseudo randomness with LSFR, pseudo random with state, calculation that takes random input and defines a LED, and an attempt to implement constraints and initial logic for Travelling Salesman Problem with Verilog.			📖 Tutorial💻 Code
picotiny	A PicoRV32-based SoC with HDMI terminal, SPI Flash XIP, and custom UART ISP for flash programming. The hardware includes PicoRV32, spimemio, and SimpleVOut modules, with address mapping for various peripherals. The firmware, built with dependencies like python, pyserial, and RISC-V GCC, enables flashing user firmware via ISP and features a UART terminal with LED toggling and flash mode configuration.			📖 Tutorial💻 Code
camera_hdmi	Contains interface, controller, registers, memory interface, synthesis generation and other necessary components for Tang Nano 4K with OV2640 camera. Video is sent to HDMI out and can be displayed on the screen.			💻 Code
UART	A UART module that receives and transmits data asynchronously. It implements state machines for both receiving and transmitting data, with control logic to manage timing and data flow. My modifications include Verilog for receiving A,B, or C to make LEDs blink. And another version that receives a sequence ABC and then makes LEDs blink.			📖 Tutorial