首先第一步,需要把想要观测的信号标记出来,即mark_debug,有两种mark_debug的方法,我用verilog写了一个简单的流水灯程序,只有几行代码,如下: module main( input clk, input rst, output reg [7:0] led ); (*mark_debug = "true"*)reg [23:0] counter; always @(po
(*mark_debug ="true"*)reg [12:0] hcnt; (*mark_debug ="true"*)reg [12:0] ycnt; (*mark_debug ="true"*)wire hsync_pre; (*mark_debug ="true"*)wire vsync_pre; assign hsync_pre = (hcnt >= HBLANK && ycnt <= VSIZE-1) ?1:0;//(ycnt==VSIZE && hcnt<=HBLANK-1)?1:0...
2. 变量x为4’d0执行A语句,为4’d1执行B语句,为4’d2执行C语句,否则执行D语句。 3.循环计数 代码如下: (*mark_debug = "true"*)reg [5:0] CNT; always @ (posedge CLK or negedge RST) begin if(!RST) CNT <= 1'b0; else CNT <= (CNT==最大计数-1) ? 1'd0 : CNT + 1'd1; end...
(*mark_debug="true"*)outputreghsync_ot,(*mark_debug="true"*)outputreg[15:0]data_out);assignclk_out=clk_60m;localparamHSIZE=16;localparamHBLANK=2;localparamVSIZE=16;localparamVBLANK=20;/*行场同步信号生成*///延迟
(* MARK_DEBUG="true" *)input wire [7:0] din0, (* MARK_DEBUG="true" *)input wire [7:0] din1, input wire [7:0] din2, input wire [7:0] din3, (* MARK_DEBUG="true" *)output wire [7:0] crc_o ); parameter [7:0] poly = 8'b0000_0111; (* MARK_DEBUG="true" *)...
(* mark_debug = "true" *) reg [3:0] led ; //WIRES //*** //INSTANTCE MODULE //*** //*** //MAIN CORE //*** always @(posedge clk or posedge rst) begin if (rst == 1'b1) begin cnt <= 4'b0 ; end else begin
MARK_DEBUG Syntax Verilog Syntax Verilog Syntax Example VHDL Syntax VHDL Syntax Example XDC Syntax XDC Syntax Example MAX_FANOUT MAX_FANOUT Verilog Example MAX_FANOUT VHDL Example MAX_FANOUT XDC Examples PARALLEL_CASE (Verilog Only) RAM_DECOMP RAM_DECOMP Verilog Example RAM_DE...
to generate FPGA speed and area results. VTR includes a set of benchmark designs known to work with the design flow. VTR can also produceFASMto program some commercial FPGAs (viaSymbiflow) Placement (carry-chains highlighted)Critical Path ...
define本质是文本替换机制，在预处理阶段将标识符替换为指定内容。例如定义总线宽度：define DATA_WIDTH 32 代码中可直接使用DATA_WIDTH，编译器自动替换为32。带参数的宏支持动态配置：define ADDR_OFFSET(x) (x4)调用时ADDR_OFFSET(3)展开为(34)。注意参数需用括号包裹，避免运算优先级问题。典型应用场景 1.硬件...
1、对象字面量的方式 person={firstname:"Mark",lastname:"Yun",age:25,eyecolor:"black"}; 2、用function来模拟无参的构造函数 function Person(){} var person=new Person();//定义一个function,如果使用new"实例化",该function可以看作是一个Class ="Mark"; person.age="25"; person.work=function(...