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ad_DCT
- verilog 编程 有测试文档 基于查表结构实现 离散余弦变换dct 来源:opencores -Verilog Programming is based on the test documents Lookup structure for a discrete cosine transform Extra Source : opencores
VHDL
- 一个直接数字频率合成的查表程序,VHDL语言,使用7128调试通过
NCO_sin
- 基于FPGA的NCO设计,采用查表方法.八位地址线,一个周期采点256个,输出八位数据.
dds
- 基于CYCLONE II的程序,DDS原理的函数信号发生器.采用查表法实现.各位可以参考.
LPM_ROMsin_signal_generator(12×256)MAX502
- 基于芯片MAX502的十二位并行DAC芯片的程序,利用FPGA中的ROM查表进行数据存储
HwLog10.rar
- 用verilog写的,基于查表法实现的LOG10运算器,在Altera FPGA中应用。,It is a verilog design of LOG10 calculation unit, which is based on LUT arithmatic. And it is applicated in Altera FPGA.
adc0804_new.rar
- AD0804驱动,使用新的查表方式,可大大的降低数值运算,节省CPLD的资源,AD0804 driver,using a new method_look up table,which can save a lot of resources of CPLD
VHDL8
- 一个VHDL拨码开关以及数码管显示的例程,让你更好的明白VHDL查表法的方便,从而减少逻辑单元的使用。-A VHDL DIP switches and digital LED display routine, so you better understand the convenience of VHDL look-up table, thereby reducing the use of logic cells.
FPGA-DDS
- 在FPGA内,以查表方式实现频率直接合成器(DDS)功能。verilog源代码-In the FPGA in order to achieve the look-up table means the direct synthesizer frequency (DDS) feature. verilog source code
CPU
- 用VHDL设计的cpu 用微指令方法设计 通过rom查表的方式进行设计-Cpu design with VHDL designed by microinstructions way through the design of look-up table rom
ntc
- NTC电阻在VERILOG HDL中的曲线表,使用1MA恒流源供电,用AD对其采集电压,并以12BIT形式输出查表即可达到实际温度值,本表占用450个12位存储单元-NTC resistor VERILOG HDL in the curve of the table, use the 1MA current source power supply voltages were collected with AD and in the form of the output look-up table
dayin
- 该程序利用vhdl语言,采用查表法实现am调制,此方法简洁又有效-The program using vhdl language, using look-up table method to achieve am modulation, this method is simple and effective
music
- 乐曲硬件演奏电路设计 由顶层文件和数控分频、乐曲简谱码对应的分频预置数查表电路、8位二进制计数器(ROM的地址发生器)组成。演奏乐曲“梁祝”,乐曲可改。已经过硬件下载测试(使用芯片EP1C6Q240 Cyclone系列)-Music by the top hardware performance circuit design file and the NC frequency, music notation code number corresponding to the preset fr
FPGASquare-RootRaised-CosineFilter
- 数字通信系统中, 基带信号的频谱一般较宽, 因此 传递前需对信号进行成形处理, 以改善其频谱特性,使 得在消除码间干扰与达到最佳检测接收的前提下,提高信道的频带利用率。目前,数字系统中常使用的波形成形滤波器有平方根升余弦滤波器、 高斯滤波器等。设计方法有卷积法或查表法, 其中: 卷积法的实现,需要消耗大量的乘法器与加法器,以构成具有一定延时的流水线结构。为降低硬件消耗,文献提出了一种分-FPGA Implementation of Square Root Raised Cosine Pu
dds
- 通过查表法,用FPGA实现波形的输出。预先将数据存放在ROM中,依次读取数据并输出。-Look-up table method, the output waveform with FPGA implementation. Advance to data stored in ROM, in order to read data and output.
DDS-program
- DDS芯片中主要包括频率控制寄存器、高速相位累加器和正弦计算器三个部分(如Q2220)。频率控制寄存器可以串行或并行的方式装载并寄存用户输入的频率控制码;而相位累加器根据 dds 频率控制码在每个时钟周期内进行相位累加,得到一个相位值;正弦计算器则对该相位值计算数字化正弦波幅度(芯片一般通过查表得到)。DDS芯片输出的一般是数字化的正弦波,因此还需经过高速D/A转换器和低通滤波器才能得到一个可用的模拟频率信号。-The chips mainly includes DDS frequen
tmdnishi78
- 传统的采用软件方式实现的DES算法会在很大程度上占用系统资源,造成系统性能的下降。DES算法本身并没有复杂的数学计算,在加/解密过程中仅有逻辑运算和查表运算,因而从系统性能和加/解密速度的角度来看,采用硬件实现是个理想的方案。-rilog prepared by the entry of the code for beginners is very easy to understand and contribute to the digital circuit learning FPGA ent
jiyu-FPGA-chaochengboxinhaochuli
- 了降低超声波流量检测过程中噪声对检测精度的影响,采用FPGA器件构建了FIR滤波器,并提出一种新颖的查表法替代滤波器中的乘法运算-In order to reduce the flow in the process of ultrasonic testing noise on the influence of the precision, based on FPGA device constructed the FIR filter, and put forward a novel queryi
create_crc_table
- 该程序是实现24bitsCRC编码的造表过程,因为CRC编码采用查表方式实现,所以得提前造好相应的查找表-The program is achieve 24bitsCRC encoding table-making process, because CRC coding using look-up table to achieve well in advance so you have the appropriate look-up table
rom_c
- 4*4查表ROM 4*4查表ROM 4*4查表ROM-ROM, 4* 4 look-up table ROM, 4* 4 4* 4 look-up table look-up table ROM
