个人感觉没什么优点,具体参见文章:“多位格雷码计数器的VerilogHDL描述方法”。 8bit格雷码计数器的代码: 1module gray_counter(2rst_n,3clk,4bin_cnt,//输出二进制,可用于同步时钟域的计算、比较等5gray_cnt//输出格雷码,可用于异步传输6);78parameter CNT_SIZE =8;910input rst_n;1
下面是多对一、XNOR的方式,此处的代码仅仅是模拟LFSR计数器的工作,具体使用时需根据需要进行改进。 下面给出8bit LFSR计数器的verilog代码。 根据上表,可知tap为8、6、5、4,因此,代码如下: 1 module lfsr_counter(rst_n, 2 clk, 3 cnt 4 ); 5 6 parameter CNT_SIZE = 8; 7 8 input rst_n; 9 inpu...
ASIC设计作业 ——Verilog HDL 设计产生One_Hot Code 姓名： 学号： 班级：一、名词解释——One-Hotcode 独热码，在英文文献中称做 one-hot code, 直观来说就是有多少个状态就有多少比特，而且只有一个比特为1，其他全为的一种码制。通常，在通信网络协议栈中，使用八位或者十六位状态的独热码，且...
We can disable a block of code, by using the reserve word disable. In the above example, after each counter increment, the COUNT block of code (not shown here) is disabled. For loop For loops in Verilog are almost exactly like for loops in C or C++. The only difference is that the...
Designers have long found that there are many tradeoffs for area and performance. One-hot-state-encoding is an approach to state machine design that attempts to gain performance by simplifying decode logic. The simplest example is comparing a 4 bit counter to it's one-hot equivalent, which is...
CommsTimer_WriteCounter(delay); CommsTimer_Start(); } (Sorry about formatting, I have neither the time nor the patience to wrestle with yet another buggy, badly designed web based text editor!) This solution also allows the timer to be restarted before it has expired, which was a requir...
还有一种方法,不是很常用,也很复杂,是通过组合逻辑直接产生格雷码的,而不需要先产生二进制,再进行转换。个人感觉没什么优点,具体参见文章:“多位格雷码计数器的VerilogHDL描述方法”。 8bit格雷码计数器的代码: 1module gray_counter(2rst_n,3clk,4bin_cnt,//输出二进制,可用于同步时钟域的计算、比较等5gray_...