VHDL硬件描述语言作业

verilog full case and paralel case directive usage

Paint for SPARTAN 3E

cpld/fpga RS(204,188)译码器的verilog程序-cpld/fpga RS (204,188) decoder of the Verilog program

波特率可供选择的vhdl源程序,已调试无错误-Baud rate options VHDL source code has no error debug

EDA 正弦信号发生器：正弦信号发生器的结构有四部分组成，如图1所示。20MHZ经锁相环PLL20输出一路倍频的32MHZ片内时钟,16位计数器或分频器CNT6，6位计数器或地址发生器CN6，正弦波数据存储器data_rom。另外还需D/A0832（图中未画出）将数字信号转化为模拟信号。此设计中利用锁相环PLL20输入频率为20MHZ的时钟，输出一路分频的频率为32MHZ的片内时钟，与直接来自外部的时钟相比，这种片内时钟可以减少时钟延时和时钟变形，以减少片外干扰 还可以改善时钟的建立时间和保持时间，是系统稳定工作的保证。CNT6用来将32MHZ进行8分频得到4096HZ的频率提供给CN6与data_rom时钟信号。由CLK端输入20MHZ的时钟信号，在DOUT端就可输出稳定的正弦信号。(Sine signal generator has the structure of four parts, as shown in figure 1 below. The 20 MHZ phase lock loop PLL20 output all the way of frequency doubled within 32 MHZ slice clock, 16 counter or prescaler CNT6, six counter or address generator CN6, sine data storage data_rom. In addition to D/A0832 (shown in not draw) will digital signal into analog signals. This design using the phase lock loop PLL20 input frequency for 20 MHZ clock, the output of the frequency of all points frequency of 32 pieces (MHZ clock, and comes directly from the external clock, compared to this piece of clock can reduce the clock in delay and clock deformation, to reduce the interference of Can also improve the establishment of the clock time and keep time, is the system stability of assurance. CNT6 used to will and to 8 MHZ get 4096 HZ dividing the frequency to provide CN6 and data_rom clock signal. The input by CLK 20 MHZ clock signal, in DOUT end can output stable sine signals. )

Vhdl 语言在 pdf 格式的波斯语。你可以学习编码用 vhdl 语言、 fpga、 盖茨、 专用集成电路、 cpu 编程，在 2 个部分。

主要讲述了数码相机MIPI接口协议说明，工作模式及信号传输原理等(Camera Interface Overview)

自动计算fir滤波器系数的工具，不妨一试(Automatic calculation of filter coefficients fir tools, try)

用VerilogHDL编写的，一个占空比为50％的6分频电路-prepared using Verilog HDL, a 50% duty cycle for the six sub-frequency circuit

全加器的vhdl程序及其仿真图像.by利用它可以方便、准确地得到输出