用VHDL语言设计分频器，主要是因为一些子

一个数字电路设计：六层电梯自动运行的VHDL程序(a digital circuit:sixlift design)

这是一个很全的HDB3译码的verilog程序，用于FPGA入门所用，verilog的入门很好的程序(This is a very wide of the HDB3 decoding verilog program for entry-FPGA used, verilog entry procedures for good)

说明：  vhdl常见小实验代码，包括二进制比较器，4选1,8421十进制，8421转化成格雷码，8421余三码，分频器，数据码译码器，二进制减计数器，四位环形计数器等(VHDL common small experiment code)

基于ATEREAL EPM1270T144C5N CPLD 压力传感器数据采集原码 开发软件 Quartus II -ATEREAL EPM1270T144C5N CPLD-based pressure sensor data acquisition source Quartus II development software

UART RS232 IPCORE for sopc builder -RS232 UART IPCORE for sopc builder

说明：  ? 熟悉IIC协议总线协议，采用IIC总线对图像采集传感器寄存器进行配置，并转换为RGB565格式。 ? 利用异步FIFO完成从摄像头输出端到SDRAM 和SDRAM 到VGA 接口各跨时钟域信号的传输和处理。 ? 利用 SDRAM 接口模块的设计，实现了刷新、读写等操作；为提高SDRAM 的读写带宽，均采用突发连续读写数据方式；并采用乒乓操作实现 CMOS 摄像头与VGA的帧率匹配。 ? 利用双线性插值方法实现对图像640×480到1024×768的放大操作。 ? 完成VGA显示接口设计。(Familiar with IIC protocol bus protocol, IIC bus is used to configure the register of image acquisition sensor and convert it into RGB565 format. Asynchronous FIFO is used to transmit and process signals across clock domain from camera output to SDRAM and SDRAM to VGA interface. With the design of SDRAM interface module, refresh, read and write operations are realized. In order to improve the read and write bandwidth of SDRAM, burst continuous read and write data mode is adopted, and table tennis operation is used to achieve frame rate matching between CMOS camera and VGA. The bilinear interpolation method is used to enlarge the image from 640*480 to 1024*768. Complete the VGA display interface design.)

采用VHDL编写的一个简单的UART-using VHDL prepared a simple UART

very good code for edge detection based on vhdl programming.

altera公司cpld的原理图库(protel格式)-sch.lib about altera s cpld.

NIOSII I2C接口模块及驱动程序，并含有测试程序。对想开发NIOS的工程师很有帮助(NIOSII I2C interface module and driver, and contains the test procedures. NIOS of engineers want to develop useful)