<6>编译成功后,接下来开始仿真。点击“Simulate—>Start Simulation…”,在弹出的对话框中,展开work,选择assert_test,然后“OK”。 <7>将Object下的信号clk、a、b添加到波形中去,做法是选中信号clk、a、b,然后右键单击“Add to—>Wave—>Selected signals”,如下图所示: <8>点击“Simulate—>Restart…”,“O...
//stop the simulation always begin #10 ; if ($time >= 1000) $finish ; end endmodule 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. for 循环 for 循环语法格式如下: for(initial_assignment; condition ; step_assignment) begin … end 1. 2. 3. initial_assignment 为...
14、repeat(20)(negedge clk) begin a = $random()%2; b = $random()%2; end (negedge clk); $stop; end / 即时断言 always_comb begin a_ia: assert (a&&b); endendmodule该段代码断言信号a和信号b同时为1,否则断言失败。<2>其断言情况如下所示:# * Error: Assertion error.# Time: 0 ps ...
$write ("start simulation\n"); end endtask ///stopsim/// task stopsim(); begin $write ("stop simulation\n"); end endtask ///printstats/// task printstats(); begin $write ("printstats\n"); end endtask ///isDone/// function bit...
sc_stop()被调用 Verilog侧的$finish被调用 sc_main函数返回 在设计被清理干净之前,上面的两种情况是可以检测到的,但是最后一种情况在设计被释放之前无法被检测到。一旦sc_main()返回,所有静态分配的sc_objects都会被删除。因此SystemC kernel无法在这些删除的sc_objects中处理end_of_simulation回调。因此,必须在sc...
注:$stop和$finish有可选的参数0,1,2,决定什么类型的诊断信息被打印: 0—— printing nothing 1—— printing simulation time and location 2—— printing simulation time,location and statistics about the memory and Central Process Unit(CPU) time used in simulation...
$readmemh("file_name",mem_array,start_addr,stop_addr); 1. 举一个仿真的例子: moduledes();reg[7:0]mem1;// reg vector 8-bit widereg[7:0]mem2[0:3];// 8-bit wide vector array with depth=4reg[15:0]mem3[0:3][0:1];// 16-bit wide vector 2D array with rows=4,cols=2initi...
1//Verilog Test Bench template for design : moore_state_machine2//Simulation tool : Questa Intel FPGA (Verilog)34`timescale1ns/10ps5modulemoore_state_machine_vlg_tst();6regclk;7regreset_n;8regsm_input;9//wires10wiresm_out;1112moore_state_machine DUT (13.clk(clk),14.reset_n(reset_n...
I am using the Questa Intel FPGA Edition-64 2023.3 version to run my simulations. My testbench is in System Verilog and when I try to use simulation control commands such as $stop, $monitor etc, Questa throws an error. The error message is pasted below. (vlog-1...
<6>编译成功后,接下来开始仿真。点击“Simulate—>Start Simulation…”,在弹出的对话框中,展开work,选择assert_test,然后“OK”。 <7>将Object下的信号clk、a、b添加到波形中去,做法是选中信号clk、a、b,然后右键单击“Add to—>Wave—>Selected signals”,如下图所示: <8>点击“Simulate—>Restart…”,“O...