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axi_driver.sv

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+class axi_drv extends uvm_driver#(axi_trans);
+
+    `uvm_component_utils(axi_drv)
+    virtual axi_if vif;
+    axi_trans tnx;
+
+    function new(string name="axi_drv",uvm_component parent);
+        super.new(name,parent);
+    endfunction
+
+    function void build_phase(uvm_phase phase);
+        super.build_phase(phase);
+        if(!uvm_config_db#(virtual axi_if)::get(this,"","vif",vif))
+            `uvm_error("build_phase","driver virtual interface failed");
+    endfunction
+
+    task run_phase(uvm_phase phase);
+        `uvm_info("UVM_DRIVER",$sformatf("driver main phase ended"),UVM_LOW);
+        forever
+		begin
+		seq_item_port.get_next_item(tnx);
+		drive(tnx);
+		seq_item_port.item_done();
+		end
+    endtask
+    task driver();
+  	        begin
+			axi_write_address();
+			axi_write_data();
+			axi_write_resp();
+			axi_read_address();
+			axi_read_data();
+		end
+	endtask
+task axi_write_addr(axi_trans txn);
+                $display("start of drive_awaddr");
+                vif.drv_cb.AWVALID <= 1;                                 
+                vif.drv_cb.AWADDR <= txn.AWADDR;
+                vif.drv_cb.AWSIZE <= txn.AWSIZE;
+                vif.drv_cb.AWID <= txn.AWID;
+                vif.drv_cb.AWLEN <= txn.AWLEN;
+                vif.drv_cb.AWBURST <= txn.AWBURST;
+
+                @(vif.drv_cb);
+                wait(vif.drv_cb.AWREADY)
+                vif.drv_cb.AWVALID <= 0;
+
+                repeat
+                        @(vif.drv_cb);
+
+                $display("end of drive_awaddr");
+        endtask
+	task axi_write_data(axi_trans txn);
+
+                $display("start of drive_wdata");
+        foreach(txn.WDATA[i])
+                        begin
+                                vif.drv_cb.WVALID <= 1;
+                                vif.drv_cb.WDATA <= txn.WDATA[i];
+                                vif.drv_cb.WSTRB <= txn.WSTRB[i];
+                                vif.drv_cb.WID <= txn.WID;
+                                if(i==(txn.AWLEN))
+                                        vif.drv_cb.WLAST <= 1;
+                                else
+                                        vif.drv_cb.WLAST <= 0;
+
+                                @(vif.drv_cb);
+                                wait(vif.drv_cb.WREADY)
+                                    vif.drv_cb.WVALID <= 0;
+                                    vif.drv_cb.WLAST <= 0;
+
+                                repeat
+                                        @(vif.drv_cb);
+                        end
+
+                $display("end of drive_wdata");
+        endtask
+
+	task axi_write_resp(axi_trans txn);
+
+                $display("start of drive_bresp");
+		foreach(tnx.)
+			vif.drv_cb.BREADY<=1;
+           @(vif.drv_cb)
+           wait(vif.drv_cb.BVALID)
+              vif.drv_cb.BREADY<=0;
+           repeat
+               @(vif.drv_cb);
+            $display("end of drive_bresp");
+        endtask
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+  /*  task drive(axi_trans trans);
+        begin
+            `uvm_info("UVM_DRIVER",$sformatf("driver run driver task entered"),UVM_LOW);
+            @(this.vif.drv_cb);
+            
+        `uvm_info("UVM_DRIVER",$sformatf("driver run drive task ended"),UVM_LOW);
+        end
+    endtask
+endclass*/