ovm验证时出现问题

zhcheng06 · 发表于 2012-10-19 21:43:37

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请教各位高手一个问题：

class my_driver extends ovm_driver;
`ovm_component_utils(my_driver)
function void new(.....)
...
endfunction: new

function void build();
....
endfunction: build

task run;
...
seq_item_port.get_next_item(...);
...
endtask

endclass: my_driver

class my_agent extends ovm_agent;
`ovm_component_utils(my_agent)

my_driver driver;
my_sequencer sequencer;

function void new(...)
...
endfunction: new

function void build();
super.build();
sequencer = my_sequencer::type_id::create("sequencer",this);
sequencer.build();
driver = my_driver::type_id::create("driver",this);
driver.build();

driver.seq_item_port.connect(sequencer.seq_item_export);

endfunction: build
endclass: my_agent

class my_env extends ovm_env;
`ovm_component_utils(my_env)
my_agent agent;
function void new(...)
...
endfunction: new

function void build();
super.build();
agent = my_agent::type_id::create("agent",this);
agent.build();
endfunction: build

task run;
....
endtask

endclass:my_env

仿真结果显示，my_env 中的run()函数跑起来了，但driver的run()没有跑起来，agent, driver,sequencer都已经创建了，就是driver的run跑不起来，一直等在那里进行不下去了，请各位高手指点原因啊，小弟在此谢过

tbb2009 · 发表于 2012-10-19 22:24:33

sequencer 里面的sequence 呢？没有看到sequence的类啊。没有子弹，driver怎么s啊！

zhcheng06 · 发表于 2012-10-19 22:36:23

sequencer没有贴上来
class my_sequencer extands ovm_sequencer;
`ovm_sequencer_utils(my_sequencer)

function void new(...)
super.new();
endfunction:new
function void build();
super.build();
`ovm_update_lib...
endfunction:build
endclass: my_sequencer

class my_seqitem extends ovm_sequence_item;
.....
endclass:my_seqitem

class my_test extends ovm_test;
`ovm_componet_utils(my_test)

my_env env;
function void new(...)
...
endfunction: new
function void build();
super.build();
env=my_env::type_id::create("env",this);
env.assign_vi(test_top.dut_if)
endfunction: build

task run;
`run_sequence(env.agent.sequencer,"simple_seq");
global_stop_request();
endtask:run
endclass: my_test

module test_top;

my_interface dut_if;
dut dut(...);

initial
run_test("my_test");

...
endmodule