xilinx 开发板程序，VGA控制显示

vhdl code for fir filter

CPLD下载线制作，内含电路图等，希望对大家有帮助-CPLD download line production, including circuit diagrams, etc., in the hope that we have to help

VGA的IP核，下载即可用，解压到指定目录下就可以了，参照里面的read me.-VGA

该代码为VHDL语言描述的AD579 SPI通讯程序，包括一些代码注解。(Thisis a SPI communication promgram of AD5791 designed with VHDL which compared with some discreption.)

使用verilog写的32位浮点数加法模块、浮点数乘法模块、浮点数除法模块、浮点数指数模块。指数模块是综合前面三个例化成泰勒级数求指数，迭代次数（可设置）决定了精度。(Use verilog write 32-bit floating-point addition module, floating-point multiplication module, floating-point division module, the floating point number index module.Index module is a comprehensive index of the front three cases into Taylor series for calculating index, the number of iterations can be set to determine the precision)

VESA CVT视频参数计算器，输入分辨率和刷新率即可得到需要参数。(VGA Timing Calculator)

说明：  文件用于驱动TFT屏，分辨率800*400，平台为quartus13，芯片为cycloneIV(The file is used to drive the TFT screen with a resolution of 800*400. The platform is quartus 13 and the chip is cyclone IV.)

基于VHDL的多路抢答器，用LCD12864进行显示(Multiplex answering device based on VHDL is displayed with LCD12864)

基于FIPS 180-4标准的SHA-1算法的verilog HDL实现，分模块分别实现(FIPS 180-4 standard SHA-1 algorithm-based verilog HDL sub-modules, respectively, to achieve)

Computer Architecture Handbook on Verilog HDL