virtual task update( output uvm_status_e status, input uvm_path_e path = UVM_DEFAULT_PATH, input uvm_reg_map map = null, input uvm_sequence_base parent = null, input int prior = -1, input uvm_object extension = null, input string fname = "", input int lineno = 0 ) 将模型中的...
virtual my_if vif; //声明driver的interface, interface my_if的定义这里不再介绍 extern virtual function void build_phase(uvm_phase phase); extern virtual task void main_phase(uvm_phase phase); endclass function void my_driver:: build_phase(uvm_phase phase); //将顶层实例化的interface指针传递给...
virtual task body(); uvm_status_e status; uvm_reg_data_t value; if(starting_phase != null) starting_phase.raise_objection(this); #1000; // set value of registers via uvm_reg::poke() for UVM_BACKDOOR p_sequencer.p_rm.invert.poke(status, {15'h00, 1'b0}); p_sequencer.p_rm.co...
function 新创建一个driver继承自wr_driver,所有写入的数据都规定为'h66: classnew_driver#(parameterDSIZE=8)extendswr_driver;`uvm_component_utils(new_driver)stringname;functionnew(stringname="",uvm_componentparent=null);super.new(name,parent);this.name=name;endfunctionexternvirtualtaskmain_phase(uvm_...
virtual function void start_of_simulation_phase(uvm_phase phase); super.start_of_simulation_phase(phase);`uvm_info(tID,"start_of_simulation_phase is executed",UVM_LOW)endfunction virtual taskrun_phase(uvm_phase phase);`uvm_info(tID, "run_phase is executed", UVM_LOW) ...
virtual task update( output uvm_status_e status, input uvm_path_e path = UVM_DEFAULT_PATH, input uvm_reg_map map = null, input uvm_sequence_base parent = null, input int prior = -1, input uvm_object extension = null, input string fname = "", ...
如果父类和子类中有同名的method,且父类中的method声明为virtual,那么当通过"指向子类对象的父类句柄"调用method时,SV的虚方法重载机制会检测到句柄指向的对象是子类,从而只调用子类中的task/function。 缺点:一旦在父类中定义了某虚方法,那么在子类中实现此方法时,要求子类方法和父类虚方法的函数名,参数名都要一...
在每一个task_phase都会调用该函数，这样其实我们在build_phase除了把这个virtual_sequence设置到virtual_...
virtual my_if vif;function new(string name="my_driver",uvm_component parent=null);super.new(name,parent);`uvm_info("my_driver","newiscalled",UVM_LOW)endfunction extern virtual task main_phase(uvm_phase phase);endclass task my_driver::main_phase(uvm_phase phase);phase.raise_objection(thi...
500ns3) simv +UVM_TIMEOUT="500ns,YES控制objection的时机:推荐在sequence里的body () task中实现控制 objection章节示例代码:21ass case0_sequence extends iivm.spquLence nu_transactLQn m-j-tr-aneaction n_tr1mnsf jncLior new string nime);super日mS抑日jendfunctionvirtual task bodijiff st5rving....