AXI-Verification/axi_sequence.sv

//reset sequence
class reset_sequence extends uvm_sequence #(packet);

 `uvm_object_utils(reset_sequence)
  packet pkt;
  function new(string name = "reset_sequence");
    super.new(name);
 endfunction
  
  virtual task body();
        `uvm_info(get_type_name(), $sformatf("*** RESET SEQUENCE is started ***"), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        start_item(pkt);
        assert(pkt.randomize);
        pkt.op = WRITE;
        finish_item(pkt);
  endtask
endclass

/*
//read sequence
class read_sequence extends uvm_sequence #(packet);
 `uvm_object_utils(read_sequence)
  packet pkt;
  function new(string name = "read_sequence");
    super.new(name);
 endfunction
  
  virtual task body();
      repeat(10)
      begin
        `uvm_info(get_type_name(), $sformatf("*** READ SEQUENCE is started ***"), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        //pkt.paddr_invalid.constraint_mode(0);
        start_item(pkt);
        assert(pkt.randomize);
        pkt.op = READ;
        //pkt.pwrite=0;
        finish_item(pkt);
      end
  endtask
endclass

//write sequence
class write_sequence extends uvm_sequence #(packet);
 `uvm_object_utils(write_sequence)
  packet pkt;
  function new(string name = "write_sequence");
    super.new(name);
 endfunction
  
  virtual task body();
      repeat(10)
      begin
        `uvm_info(get_type_name(), $sformatf("*** WRITE SEQUENCE is started ***"), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        pkt.paddr_invalid.constraint_mode(0);
        start_item(pkt);
        assert(pkt.randomize);
        pkt.ap = WRITE;
        pkt.pwrite=1;
        finish_item(pkt);
      end
  endtask
endclass


//write_read_sequence
class write_read_sequence extends uvm_sequence #(packet);
 `uvm_object_utils(write_read_sequence)
  packet pkt;
  function new(string name = "write_read_sequence");
    super.new(name);
 endfunction
  
  virtual task body();
    //write seq
      repeat(10)
      begin
        `uvm_info(get_type_name(), $sformatf("*** WRITE SEQUENCE is started ***"), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        pkt.paddr_invalid.constraint_mode(0);
        start_item(pkt);
        assert(pkt.randomize);
        pkt.ap = WRITE;
        pkt.pwrite=1;
        finish_item(pkt);
    
    //read seq
        `uvm_info(get_type_name(), $sformatf("*** READ SEQUENCE is started ***"), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        pkt.paddr_invalid.constraint_mode(0);
        start_item(pkt);
        assert(pkt.randomize);
        pkt.ap = READ;
        pkt.pwrite=0;
        finish_item(pkt);
      end  
  endtask
endclass
*/

/*
//write_read_sequence
class multi_write_multi_read_sequence extends uvm_sequence #(packet);
 `uvm_object_utils(multi_write_multi_read_sequence)
  packet pkt;
  function new(string name = "multi_write_multi_read_sequence");
    super.new(name);
 endfunction
  
  virtual task body();
    int count=1;
    //multi write seq
    repeat(5)
      begin
        `uvm_info(get_type_name(), $sformatf("***MULTI WRITE SEQUENCE --> %0d is started ***",count), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        pkt.paddr_invalid.constraint_mode(0);
        start_item(pkt);
        assert(pkt.randomize);
        pkt.ap = WRITE;
        pkt.pwrite=1;
        finish_item(pkt);
        count++;
      end

    //multi read seq
    repeat(5)
      begin
        `uvm_info(get_type_name(), $sformatf("***MULTI READ SEQUENCE--> %0d is started ***",count), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        pkt.paddr_invalid.constraint_mode(0);
        start_item(pkt);
        assert(pkt.randomize);
        pkt.ap = READ;
        pkt.pwrite=0;
        finish_item(pkt);
        count++;
      end       
  endtask
endclass
*/

/*
//write_read_sequence
class slaveerr_sequence extends uvm_sequence #(packet);
 `uvm_object_utils(slaveerr_sequence)
  packet pkt;
  function new(string name = "slaveerr_sequence");
    super.new(name);
 endfunction
  
  virtual task body();
      repeat(10)
      begin
        `uvm_info(get_type_name(), $sformatf("*** SLV ERROR WRITE SEQUENCE is started ***"), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        start_item(pkt);
        pkt.paddr_valid.constraint_mode(0);
        assert(pkt.randomize);
        pkt.ap = WRITE;
        pkt.pwrite=1;
        finish_item(pkt);
      end

    //multi read seq
      repeat(10)
      begin
        `uvm_info(get_type_name(), $sformatf("*** SLV ERROR READ OPERATION is started ***"), UVM_MEDIUM)
        pkt = packet::type_id::create("pkt");
        pkt.paddr_valid.constraint_mode(0);
        start_item(pkt);
        assert(pkt.randomize);
        pkt.ap = READ;
        pkt.pwrite=0;
        finish_item(pkt);
      end       
  endtask
endclass
*/