A binary counter is a simple counter that has an initial value of 0 at the time of reset. It value keeps incrementing by 1 at each clock cycle. And finally it reaches its maximum value, say 1111 in binary for a 4 bit counter, it again reaches 0000 in binary and keeps counting one...
8bit二进制计数器的代码: 1module binary_counter(2rst_n,3clk,4en,5load,6cnt_load,7cnt8);910parameter CNT_SIZE =8;1112input rst_n;13input clk;14input en;15input load;16input [CNT_SIZE -1:0] cnt_load;1718output [CNT_SIZE -1:0] cnt;19reg [CNT_SIZE -1:0] cnt;2021//在ISE的...
跟C一样, Verilog区分大小写并且有一个基本的预处理(虽然比ANSI C/C++复杂度小很多). 它的流控关键词 (if/else, for, while, case, etc.) 是相当的,它的运算优先级与C兼容. 句法的差异表现在: required bit-widths for variable declarations, demarcation of procedural blocks (Verilog uses begin/end ...
Gray code counters (having one bit change per counter transition) are often used in FIFO design and digital communication. Here I will show two styles gray code counter. Style #1 First style gray code counter uses a single set of flip-flops as the Gray code register with accompanying Gray-t...
This page of verilog sourcecode covers 4 Bit Binary to Gray Counter Converter using verilog. Symbol Following is the symbol and truth table of 4 bit binary to gray counter converter. Truth TableRst Clk En B3 B2 B1B0 G3 G2 G1 G0 1 X 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 1...
parameter N = N_bit_Binary; // 设置自然二进制码的位宽 integer i; always @ (B) begin G[N-1] = B[N-1]; for (i=0; i<N-1; i="i"+1) G[i] = B[i+1] ^ B[i]; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. end endmodule图2. N="4"二. 二进制格雷码转换为自然二进制码原...
8bit格雷码计数器的代码: 1 module gray_counter( 2 rst_n, 3 clk, 4 bin_cnt, //输出二进制,可用于同步时钟域的计算、比较等 5 gray_cnt //输出格雷码,可用于异步传输 6 ); 7 8 parameter CNT_SIZE = 8; 9 10 input rst_n; 11 input clk; ...
二进制编码(Binary)、格雷码(Gray-code)编码使用最少的触发器,较多的组合逻辑,而独热码(One-hot)编码反之。独热码编码的最大优势在于状态比较时仅仅需要比较一个位,从而一定程度上简化了比较逻辑,减少了毛刺产生的概率。由于CPLD更多地提供组合逻辑资源,而FPGA更多地提供触发器资源,所以CPLD多使用二进制编码或格雷码...
Binary to BCD Converter Shift and Add-3 Algorithm Shift the binary number left one bit. If 8 shifts have taken place, the BCD number is in theHundreds,Tens, andUnitscolumn. If the binary value in any of the BCD columns is 5 or greater, add 3 to that value in that BCD column...
Below code is hardcoded for 8 bits. Fine tuning and optimization can be done. But this does the job. Hope this helps RTL : module dec_bin #(parameter no_of_bits = 8, parameter binary = 2)( output reg [(no_of_bits/2) - 1 : 0] counter, output reg [no_of_bits - 1...