axi_seq

axi_seq_item.sv

@@ -0,0 +1,126 @@
+//=============================AXI TRANSACTION CLASSS ==========================================//
+class axi_seq_item extends uvm_sequence_item;
+
+//FACTORY REGISTRATION 
+
+	'uvm_object_utils(axi_seq_item);
+
+//WRITE ADDRESS CHANNEL
+	rand logic [31:0] AWADDR;
+	rand logic [3:0]  AWLEN;
+	rand logic [2:0]  AWSIZE;
+	rand logic [1:0]  AWBURST;
+	       bit        AWVALID;
+	       bit        AWREADY;
+               bit [1:0]  AWLOCK;
+	rand logic [2:0]  AWPROT;
+	rand logic [3:0]  AWCACHE;
+	rand   bit [3:0]  AWID;
+
+//WRITE DATA CHANNEL
+          rand bit [3:0]  WID;
+               bit [2:0]  WSTRB;
+        rand logic [7:0]  WDATA;
+	       bit        WVALID;
+	       bit        WREADY;
+	       bit        WLAST;
+//WRITE RESPONSE CHANNEL
+               bit [1:0]  BRESP;
+	       bit        BVALID;
+	       bit        BREADY;
+
+//READ ADDRESS CHANNEL         
+        rand   bit [3:0]  ARID;
+        rand logic [31:0] ARADDR;
+	rand logic [2:0]  ARSIZE;
+	rand logic [1:0]  ARBURST;
+	rand logic [3:0]  ARLEN;
+	rand logic [2:0]  ARPROT;
+	rand logic [3:0]  ARCACHE;
+	rand logic [1:0]  AELOCK;
+	       bit        ARVALID;
+	       bit        ARREADY;
+
+//READ DATA CHANNEL
+	       bit [3:0]  RID;
+	     logic [7:0]  RDATA;
+	       bit [1:0]  RRESP;
+	       bit        RVALID;
+	       bit        RREADY;
+	       bit [3:0]  RSTRB;
+	       bit        RLAST;
+
+
+//==============================================4kb boundary=====================================//
+constraint awaddr_4k{ AWADDR % 4096 + (AWLEN + (1 << AWSIZE) <= 4096;} 
+constraint araddr_4k{ ARADDR % 4096 + (ARLEN + (1 << ARSIZE) <= 4096;} 
+
+//==============================================id must be same for bot read/write operation =====================================//
+constraint ali_w_addr{ AWID==ARID;}
+constraint ali_r_addr{WID==RID;}
+
+//==============================================burst type always not reserved=====================================//
+constraint burst_type{ AWBURST!=2'b11; ARBURST!=2'b11;}
+
+constraint wr_data_size{if(AWBURST==2'b01)
+                           (WDATA inside{[1:((2**AWSIZE)*16)]});}           
+constraint rd_data_size{if(ARBURST==2'b01)
+                           (RDATA inside{[1:((2**ARSIZE)*16)]});} 
+
+
+
+constraint wrap_data{ if(AWBURST==2'b10)
+                    WDATA inside {((2**AWSIZE)*2),((2**AWSIZE)*4),((2**AWSIZE)*8),((2**AWSIZE)*16)};}
+
+	   
+endclass
+
+
+        	
+	
+//=============================AXI SEQUENCE CLASSS ==========================================//
+class axi_wrap_sequence extends uvm_sequence #(axi_seq_item);
+
+	`uvm_object_utills(axi_wrap_sequence)
+	axi_wrap_sequence wrap_xtn;
+
+	function new(string name ="axi_wrap_sequene")
+		super.new(name);
+	endfunction
+	
+	task body();
+		repeat(10)
+		begin
+		wrap_xtn=axi_seq_item::type_id::create("wrap_xtn");
+		start_item(wrap_xtn);
+		assert(wrap_xtn.randomize() with {AWBURST==2;});
+		finish_item(wrap_xtn);
+	end
+endtask
+endclass
+
+
+       	
+	
+//=============================AXI SEQUENCE CLASSS ==========================================//
+class axi_wrap_read_seq extends uvm_sequence #(axi_seq_item);
+
+	`uvm_object_utills(axi_wrap_read_seq)
+	axi_wrap_sequence rwrap_xtn;
+
+	function new(string name ="axi_wrap_read_seq")
+		super.new(name);
+	endfunction
+
+	task body();
+		repeat(10)
+		begin
+		rwrap_xtn=axi_seq_item::type_id::create("rwrap_xtn");
+		start_item(rwrap_xtn);
+		assert(rwrap_xtn.randomize() with {ARBURST==2;});
+		finish_item(rwrap_xtn);
+	end
+endtask
+endclass
+
+