`uvm_do_on(frame_seq, p_sequencer.eth_seqr) // Invoke another virtual sequence in this sequencer. `uvm_do(rand_virt_seq) endtask : body endclass : simple_virt_seq p_sequencer就是启动这个virtual sequence的virtual sequencer。 virtual sequence和嵌套sequence的一个区别是,嵌套sequence中的sequence都...
总结一下:对于virtual function ,是在base中提供了一个函数模板,但不是必须进行override,但对于pure virtual function 而言,必须进行override,如果你忘记override,则会出现编译错误,也起了一种提示作用。 virtual sequence/sequencer 之前的文章讲过,就不再赘述,可以参照链接。 参考:我眼中的UVM |08.virtual_sequece和v...
classmy_testextendsuvm_test;...virtualtaskrun_phase(uvm_phasephase);my_virtual_seqm_vseq=my_virtual_seq::type_id::create("m_vseq");phase.raise_objection(this);// Assign all sequencer handlesm_vseq.m_apb_seqr=m_env.m_apb_agent.m_apb_seqr;...m_vseq.start(null);phase.drop_object...
virtual sequencer是UVM组件层次结构的一部分,因此它的子sequencer引用可以在连接阶段进行。 通常,将virtual sequencer插入到env级,并使用env的连接方法来分配子sequencer句柄。virtual_sequence通常run方法中创建,并在virtual sequencer上启动——即virtual_sequence.start(virtual_sequencer); 推荐给virtual_sequencer中的子sequ...
UVM:9.4.3 virtual sequence 与virtual sequencer 1.每个模块的virtual sequencer 分为两种情况: 1)只适用于模块级别,不能用于芯片级别。(B,C) 2)适用于模块和芯片级别。(A) 3) B 和C 的virtual sequencer 不能出现在芯片级的验证环境,所以不应该在env 中例化virtual sequencer,而应该在base_test 中例化。A...
UVM 仿真报错找不到sequencer问题 UVM neither the item's sequencer nor dedicated sequencer has been supplied to start item in default_parent_seq 报错问题 在执行UVM平台仿真时出现这个问题的原因: (1)没有设置sequencer。例子(截图中的原因1):在base_test的co... ...
`uvm_declare_p_sequencer (my_virtual_sequencer) function new (string name = "my_virtual_seq"); super.new (name); endfunction apb_rd_wr_seq m_apb_rd_wr_seq; wb_reset_seq m_wb_reset_seq; pcie_gen_seq m_pcie_gen_seq; task pre_body(); ...
1)基础用法:在virtual_sequencer中将各个env的sequencer包括进来,同时base_test在connect_phase中将各个env放入指针中,在case在main_phase中设置default_sequence,让其进入phase时自启动。 平常的uvm的object的控制放到sequence的body中实现,引入virtual sequencer后,则将其放入顶层的... ...
Hi I declared an array of interface in virtual sequencer, and I tried to assign value to is in vseq, here is what I do: In virtual sqr: virtual dft_chain_intf gpio_chain1_vi[3]; `cn_get_intf(virtual dft_ch…
seq.start(p_sequencer.mcu_sequencer, this); instead? By The Way: In OVM2.1.2,ovm_send() works well. I dont know why UVM remove such function ofuvm_send() I found that it is the bug of `uvm_send_pri. in UVM1.1, the macro is below: ...