verilog程序设计教程，适合初学者。

4x4鍵盤使用語法為VHDL，基於cyclone(4 x 4 keyboard using VHDL)

开源的ULPI IP核，可用于USB3300芯片的开发(openSource ULPI IP core which could be used for USB3300 chip development)

说明：  PicoRV32 is a CPU core that implements the RISC-V RV32IMC Instruction Set. It can be configured as RV32E, RV32I, RV32IC, RV32IM, or RV32IMC core, and optionally contains a built-in interrupt controller. Tools (gcc, binutils, etc..) can be obtained via the RISC-V Website. The examples bundled with PicoRV32 expect various RV32 toolchains to be installed in /opt/riscv32i[m][c]. See the build instructions below for details.

基于无源蜂鸣器和矩阵按键的电子琴系统设计(design of Electronic Piano System Based on Passive Buzzer and Matrix Key)

本文研究的IIC总线控制器具有如下特征 1.兼容飞利浦I2C标准，以主机模式与外围设备进行数据通信，对IIC从机模型进行读/读，读/写，写/写，写/读[18]。 2.多主操作 3.软件可编程时钟频率 4.时钟拉伸和等待状态生成 5.软件可编程确认位 6.时钟同步设计 7.仲裁中断丢失，自动转移取消 8.开始/停止/重复启动检测/确认生成 9.总线忙检测(The IIC bus controller studied in this paper has the following characteristics. 1. Compatible with Philips I2C standard, data communication between host mode and peripheral devices, read/read, read/write, write/write, write/read for IIC slave model [18]. 2. Multiple Main Operations 3. Software programmable clock frequency 4. Clock stretching and waiting state generation 5. Software Programmable Confirmation Bit 6. Clock Synchronization Design 7. Loss of arbitration interruption and cancellation of automatic transfer 8. Start/Stop/Repeat Start Detection/Verification Generation 9. Bus busy detection)

verilog 简易频率计的设置，包括整个工程(verilog simple frequency meter settings, including the entire project)

实现简单自动售货机的基本功能。投币找零功能，并用Led数码管显示，输出结果用Led显示。(Basic functions simple vending machines. Coin change for function and use Led digital tube display, the output display Led.)

实现基于FPGA的vga显示，亲测能编译得过，不同开发版应该要相应改动（PS: 不太了解）

FM接收机 基于FPGA的调频收音机的设计 用VEIRLOG语言编程，利用QUARTUSii与MODELSIM联合仿真(FM receiver on FPGA FM receiver design With VEIRLOG language program, use QUARTUSii and MODELSIM joint simulation)

Run-Length Encoder Example: Input Sequence (hexadecimal format): 0A, 14, 14, 14, 14, 14, 14, 14, 56, 56, 56, 56, 56, 32, 32, 07 Output Sequence (hexadecimal format): 0A, 14, 87, 56, 85, 32, 32, 07