跑马灯VHDL程序

vhdl编写的FPGA与DSP接口程序，在FPGA内分配了两块双BUFFER与DSP进行通信(vhdl prepared FPGA and DSP interface program, the FPGA within the allocated 2 pairs of BUFFER to communicate with the DSP)

说明：  该代码，只用了硬件描述语言Verilog在完成对SD卡控制器的编写，经济实用(The code, only the hardware description language Verilog in the completion of the SD card controller to prepare, economical and practical)

用FPGA控制1602型液晶显示，显示一行英文语句。(show)

16 bit switch input view in hexa format on 7seg display

二进制除法器，采用移位相减的方法实现，位数可调-The source code of a divider

基于FPGA的成型滤波器的代码，里面内附激励文件，使用verilog编写(FPGA-based shaping filter code, which included incentives files using verilog write)

异步FIFO 输入: 16bit 输出:16bit 深度:256(Asynchronous FIFO Input: 16bit Output: 16bit Depth: 256)

The project is used to perform the operation of 4 bit arethmatic and logical operation. the projcet is implemented in spartan 3E

（1）能够测试10HZ~10MHZ的方波信号； （2）电路输入的基准时钟为1HZ，要求测量值以8421BCD码形式输出； （3）系统有复位键； （4）采用分层次分模块的方法，用Verilog HDL进行设计，并对各个模块写出测试代码； （5）具体参照说明文档（包含源代码，仿真图，测试波形，详细的设计说明）(A square wave signal capable of testing 10HZ~10MHZ; (2) the reference clock input by the circuit is 1HZ, and the measured value is output in the form of 8421BCD code; (3) the system has a reset key; (4) adopt the method of layering sub sub module and design with Verilog HDL; (5) write test simulation program.)

说明：  基于OV7670采集，SDRAM缓存，sobel处理，VGA显示的工程，内有全部代码，基于QUARTUS开发板实现。 FPGA 边缘检测(Based on OV7670 acquisition, SDRAM cache, sobel processing, VGA display project, with all the code, based on QUARTUS development board. FPGA edge detection)