首先,我们需要明确的是,VHDL是一种硬件描述语言,用于描述数字系统的结构和行为。而FlipFlop是一种数字电路元件,用于实现触发器(flip-flop)的功能。因此,VHDL中的FlipFlop D代码应该是用于描述FlipFlop的VHDL代码。 根据您提供的错误提示,我们需要检查VHDL代码中的语法和拼写错误。但是,从您提供的错误信息中,我们可以看...
在VHDL中实现一个带有异步复位/置位的D触发器,我们需要逐步构建其逻辑。以下是详细的步骤和相应的VHDL代码: 1. 定义VHDL中的D触发器的基本结构 首先,我们定义一个基本的D触发器,它包含一个数据输入D,一个时钟信号CLK,以及一个输出Q。 vhdl library IEEE; use IEEE.STD_LOGIC_1164.ALL; entity D_FlipFlop is...
当rst_n为0时,q为d的值,且仅当时钟上升沿时q值才发生变化。 D触发器的VHDL代码 实现源码 1libraryIEEE;2useIEEE.STD_LOGIC_1164.ALL;3456entityDflipflopis7port( clk:inbit;8p:inbit;9rst_n:inbit;10q:outbit11);12endDflipflop;1314architectureBehavioralofDflipflopis1516begin17process(rst_n,clk)1...
//* this module define d flip flop with q as output and data, clock and reset as input *// input d_in, clk_in, rst_in; / input variable of the d flip flop is defined output reg q; / output variable of the d flip flop is defined always @ (posedge clk_in) / this block is...
D触发器（data flip-flop或delay flip-flop。）该触发器由6个与非门组成，其中G1和G2构成基本RS触发器。电平触发的主从触发器工作时，必须在正跳沿前加入输入信号。如果在CP 高电平期间输入端出现干扰信号，那么就有可能使触发器的状态出错。而边沿触发器允许在CP 触发沿来到前一瞬间加入输入信号。
here is vhdl code from the lecture slide. I don't understand why the prof chose the put the output outside of the process. Just wondering, if the clock is slow, and it's not yet at falling yet, then process is not triggered. And Qtemp will have no value ...
This paper enumerates the efficient design and analysis of Serial in serial out (SISO) shift register using N-type CNTFET Double Edge Triggered D Flip-flop. The Flip flop is designed using Ballistic CNTFET (VHDL-AMS model) with the dcnt of 1nm in resistive load inverter lo...
I am using clock enable signal to synchronize my VHDL design with an external software. Here is how one of the flipflops look like in RTL viewer http://www.alteraforum.com/forum/attachment.php?attachmentid=11590&stc=1 This flip flop has 4 input ports D,Clk,ENA,Clr and on...
The Flip flop is designed using Ballistic CNTFET (VHDL-AMS model) with the dcnt of lnm in resistive load inverter logic. The transient and power analysis are obtained with operating voltage at 0.6V for the Double edge triggered D flip-flop and PISO shift register using system vision tool. ...
The D flip-flop captures the value of the D-input at a definite portion of the clock cycle (such as the rising edge of the clock). That captured value becomes the Q output. At other times, the output Q does not change. 这段话来自于维基百科。来说说这句经典的话是什么意思吧。