乘法器功能 直接实现两个数字信号的相乘～

library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity song is    port(clk_4MHz,clk_4Hz:in std_logic;      ----预置计数器和乐谱产生器的时钟         digit:buffer std_logic_vector(6 downto 0);  ----高、中、低音数码管指示         zero:out std_logic_vector(4 downto 0);     ----用于数码管高位置低  

用verilog写的CORDIC算法实现，很适合做超越函数的运算。通常用于实现正弦乘法，或者坐标变换。-The cordic arithmetic implemented by verilog is adapted to exceed function.It is usually used to implement sine multiplication or coordinate tuansform.

计算多少次，把小砂轮安装数字传输比率是车轮的在一个更大完全旋转旋

基于PCI的数字信号发生器 关键词：PCI总线，PCI9054，FPGA，卡尔曼滤波器(PCI-based digital signal generator Keywords: PCI bus, PCI9054, FPGA, Kalman filter)

EDA中常用模块VHDL程序，不同时基的计数器由同一个外部是中输入时必备的分频函数。分频器FENPIN1/2/3(50分频=1HZ，25分频=2HZ，10分频=5HZ。稍微改变程序即可实现)-EDA VHDL modules commonly used procedure, the time- with a counter by the external input is required when the sub-frequency functions. Frequency Divider FENPIN1/2/3 (50 1HZ frequency = 25 = 2HZ-frequency, frequency = 10 points Stripper. A slight change in procedure can be realized)

本例为ADC0809接口电路VHDL程序原代码-The ADC0809 Interface Circuit Example for VHDL program source code

fpga实验板上16*16点阵显示汉字的程序-翻译结果fpga实验板上16*16点阵显示汉字的程序(Experimental fpga board 16* 16 dot matrix display Chinese program- translation results fpga experimental board 16* 16 dot matrix display Chinese characters in the program)

8对于输入密码锁的键，假设重置后七个灯显示" 0"，并且使用sw1、sw2、sw3 3，只需按任意sw1、sw2、sw3，将使七个灯显示值相加" 1

六十进制计数器，VHDL编写的计数器，本科电子的可能有些实验可以用到(counter Possible experiments of undergraduate electronics can be used)

说明：  matlab code for JTAG cable checking