classseqrextendsuvm_sequencer #(xaction);`uvm_component_utils(seqr)functionnew(string name,uvm_component parent);super.new(name,parent);endfunction endclass 定义drvr classdrvrextends uvm_driver #(xaction);`uvm_component_utils(drvr)functionnew(string name,uvm_component parent);super.new(name,par...
//wait reset asserted and release @(negedge p_sequencer.vif.rstn);// @(posedge p_sequencer.vif.rstn);// `uvm_info("BLTINSEQ","register reset sequence started",UVM_LOW) reg_rst_seq.model=rgm;// reg_rst_seq.start(sequencer);// `uvm_info("BLTINSEQ","register reset sequence finished...
m_sequencer是uvm_sequencer_base类型的句柄,默认情况下在uvm_sequence中可用。但是要访问在真实的sequencer,我们需要对m_sequencer进行转换(typecast),通常称为p_sequencer。下面是一个简单的示例,其中sequence要访问clock monitor组件的句柄。 class test_sequence_c extends uvm_sequence; test_sequencer_c p_sequencer;...
mcdf_rgm rgm; `uvm_object_utils(mcdf_example_seq) `uvm_declare_p_sequencer(mcdf_bus_sequencer) ... task body(); uvm_status_e status; uvm_reg_data_t data; uvm_reg_hw_reset_seq reg_rst_seq = new(); uvm_reg_bit_bash_seq reg_bit_bash_seq = new(); uvm_reg_access_seq reg_acc...
p_sequencer与m_sequecer用法梳理 对其类成员的参数设置.uvm_sequence产生的xaction会通过uvm_sequencer最终到driver.在xaction时,会对其进行随机,有时候需要相应的参数对随机结果控制.此时,可能会想到通过sequencer来传递对应的参数. 因为sequence中看到了是指向m_sequencer的指针,不能直接使用sequencer中的类成员.一个简...
1`ifdef QUESTA2virtual class tinyalu_base_test extends uvm_test;3`else4class tinyalu_base_test extends uvm_test;5`endif67env env_h;8sequencer sequencer_h;910functionvoid build_phase(uvm_phase phase);11env_h = env::type_id::create("env_h",this);12endfunction: build_phase1314functionvoi...
sequencer可以通过它的subsequencer产生许多种不同类型的tranction。 而virtualsequence的作用就是在协调不同的subsequencer中sequence的执行秩序了... 并不会自动凭空就有p_sequencer。P_seuencer没有被自动声明,但是可以使用`uvm_declare_p_sequencer宏声明。当调用这一宏时,在virtualsequence开启时 ...
lock()与grab()的作用当一个sqr对应多个seq时,seq通过调用lock/grab来取得sqr的所有权,在unlock(), ungrab()之前一直发送这一个seq的xaction。 将uvm_sequence/sequencer example例子中的两个seq:seq0和seq1的body部分做修改: seq0_lock.png seq1.png ...
// Same agent as in the previous bidirectional example:classadpcm_agentextendsuvm_agent;adpcm_driverm_driver;uvm_sequencer#(adpcm_seq_item)m_sequencer;adpcm_agent_configm_cfg;// Connect method:functionvoidconnect_phase(uvm_phasephase);if(m_cfg.active==UVM_ACTIVE)begin// Always need the driver...
m_sequencer, p_sequencer, A sequence generates a series of sequence_item’s and sends it to the driver via sequencer, Sequence is written by extending the uvm_sequence. UVM Sequence A uvm_sequence is derived from an uvm_sequence_item a sequence is parameterized with the type of sequence_...