函数比较多,常用的有$clog2,即在已知memory size计算address位宽时使用。 •波形记录。可以根据喜好 ,dump生成VCD或fsdb类型的波形文件。一个简单fsdb dump示例:initial begin $fsdbDumpfile(test.fsdb); $fsdbDumpvars(“+all”);end。如果工程较大的话,会用到不同的波形记录任务,可以只dump特定层次,特定模块...
This page contains Verilog tutorial, Verilog Syntax, Verilog Quick Reference, PLI, modelling memory and FSM, Writing Testbenches in Verilog, Lot of Verilog Examples and Verilog in One Day Tutorial.
This page contains Verilog tutorial, Verilog Syntax, Verilog Quick Reference, PLI, modelling memory and FSM, Writing Testbenches in Verilog, Lot of Verilog Examples and Verilog in One Day Tutorial.
gperf 3.0 or later The lexical analyzer doesn't recognize keywords directly, but instead matches symbols and looks them up in a hash table in order to get the proper lexical code. The gperf program generates the lookup table. A version problem with this program is the most common cause of ...
// A Verilog parameter allows to control the width of an instantitated // block describing register logic // // // File:parameter_1.v // module myreg (clk, clken, d, q); parameter SIZE = 1; input clk, clken; input [SIZE-1:0] d; output reg [SIZE-1:0] q; always @(posed...
assign q = ~ce_n ? data : {data_width{1'b0}}; and use an 'OR' gateon the output busses to mergethe 'Q' outputsto a single output.Also theschematic might notwork right unless you designclockless staticmemory modules instead of synchronous memory . That is unless youmode the ...
This is a very important line whose form you need to commit to memory. First comes srlatch. This is the name of the base module we are instantiating. sr0 is the instance name. The parenthesis opens the instantiation. Every instantiation will begin like that; "<module to be instantiated> ...
Function is an expression evaluated to a value. Return Type Tasks do not return values. Functions return a single value. Usage in Expressions Cannot be used in expressions directly. Can be used in expressions to compute values. Blocking Statements Allows blocking statements (e.g., #10;). Non...
1、APB桥APB桥是AMBA APB总线上的唯一主机,也是AMBA AHB的一个从机。下图表示了APB桥接口信号: APB Bridge将AHB传输转成APB传输并实现一下功能: (1)对锁存的地址进行译码并产生选择信号PSELx,在传输过程中只…
two registers that are proved equivalent cannot be merged if they belong to different class. When computing equivalent registers, computation is limited to one clock-domain at a time while the registers of other domains are treated as primary inputs. In the example below, the second registers is...