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reg actual;

parameter   EXTEST          =   4'b0000;

parameter   SAMPLE          =   4'b0001;

parameter   HIGHZ_MODE      =   4'b0010;

parameter   CHIP_ID_ACCESS  =   4'b0011;

parameter   CLAMP           =   4'b1000;

parameter   RPC_DATA        =   4'b1010;

parameter   RPC_ADD         =   4'b1001;

parameter   BYPASS          =   4'b1111;

parameter   INST_RETURN     =   4'b1101;

initial

begin

$display("              ");

$display("              ===================================================");

$display("              Test Start");

$display("              ===================================================");

$display("              ");

test.cg.next(20);

fork

begin

test.uart_model.rcv_byte(8'h42);

test.uart_model.send_byte(8'h65);

test.uart_model.rcv_byte(8'h65);

test.uart_model.send_byte(8'h37);

test.uart_model.rcv_byte(8'h37);

test.uart_model.send_byte(8'h20);

test.uart_model.rcv_byte(8'h20);

test.uart_model.send_byte(8'h41);

test.uart_model.rcv_byte(8'h41);

test.uart_model.send_byte(8'h45);

test.uart_model.rcv_byte(8'h45);

test.uart_model.send_byte(8'h25);

test.uart_model.rcv_byte(8'h25);

test.cg.next(4000);

end

begin

$display("              ");

$display("              ===================================================");

$display("              JTAG Test Start");

$display("              ===================================================");

$display("              ");

test.cg.next(2);

test.jtag_model.enable_tclk;

test.cg.next(20);

test.jtag_model.enable_trst_n;

test.jtag_model.enable_reset;

test.jtag_model.init;

test.cg.next(10);

test.jtag_model.LoadTapInst(EXTEST,INST_RETURN);

test.cg.next(100);

test.jtag_model.LoadTapInst(CLAMP,INST_RETURN);

test.cg.next(100);

test.jtag_model.LoadTapInst(CHIP_ID_ACCESS,INST_RETURN);

test.jtag_model.Shift_Cmp_32(32'ha5a5a5a5,32'h12345678);

test.cg.next(100);

test.jtag_model.LoadTapInst(RPC_DATA,INST_RETURN);

Shift_Cmp_8(8'ha5,8'h00);

Shift_Cmp_8(8'h00,8'h00);

Shift_Cmp_8(8'h00,8'h00);

Shift_Cmp_8(8'h00,8'h00);

test.cg.next(100);

test.jtag_model.LoadTapInst(RPC_ADD,INST_RETURN);

Shift_Cmp_53(53'h1c000000000000,53'h00000000000004);

test.cg.next(4000);

Shift_Cmp_42(42'b0_11001010_00011000_10000001_11111111_0100_00001       ,42'h00000000004);

Shift_Cmp_42(42'b0_00110110_11001100_10011001_01111110_0100_00001       ,42'h2ca1881ff44);

test.cg.next(5000);

test.cg.next(100);

test.jtag_model.LoadTapInst(BYPASS,INST_RETURN);

test.cg.next(100);

end

join

test.cg.exit;

end

task automatic  Shift_Cmp_8;    // Initialize boundary register with outputs disabled

                         // This tasks starts at RT_IDLE and ends at SHIFT_DR

  parameter [15:0] LENGTH =  8;

  input [LENGTH:1]  Dataout;

  input [LENGTH:1]  DataExp;

  integer i;

  reg [LENGTH:1]  DataBack;

  begin

    test.jtag_model.Clk_bit(1'b1,1'b0,actual);// Transition from RT_IDLE to SELECT_DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from SELECT_DR to CAPTURE_DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from CAPTURE_DR to SHIFT_DR

    for (i = 1; i <= LENGTH; i = i+1)

       test.jtag_model.Clk_bit((i==LENGTH),Dataout[i],DataBack[i]);

    $display  ("%t  %m    Shift_data_register    wr-%h  exp-%h rd-%h    ",$realtime,Dataout,DataExp,DataBack  );

   if (DataBack  !== DataExp )

   begin

   test.cg.fail  (" Shift_cmp  receive error  ");

   end

    test.jtag_model.Clk_bit(1'b1,1'b0,actual);//Transition from EXIT1-DR to UPDATE-DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from UPDATE-DR to IDLE

  end

endtask // ShiftRegister

task automatic  Shift_Cmp_42;    // Initialize boundary register with outputs disabled

                         // This tasks starts at RT_IDLE and ends at SHIFT_DR

  parameter [15:0] LENGTH =  42;

  input [LENGTH:1]  Dataout;

  input [LENGTH:1]  DataExp;

  integer i;

  reg [LENGTH:1]  DataBack;

  begin

    test.jtag_model.Clk_bit(1'b1,1'b0,actual);// Transition from RT_IDLE to SELECT_DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from SELECT_DR to CAPTURE_DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from CAPTURE_DR to SHIFT_DR

    for (i = 1; i <= LENGTH; i = i+1)

       test.jtag_model.Clk_bit((i==LENGTH),Dataout[i],DataBack[i]);

    $display  ("%t  %m    Shift_data_register    wr-%h  exp-%h rd-%h    ",$realtime,Dataout,DataExp,DataBack  );

   if (DataBack  != DataExp )

   begin

   test.cg.fail  (" Shift_cmp  receive error  ");

   end

    test.jtag_model.Clk_bit(1'b1,1'b0,actual);//Transition from EXIT1-DR to UPDATE-DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from UPDATE-DR to IDLE

  end

endtask // ShiftRegister

task automatic  Shift_Cmp_53;    // Initialize boundary register with outputs disabled

                         // This tasks starts at RT_IDLE and ends at SHIFT_DR

  parameter [15:0] LENGTH =  53;

  input [LENGTH:1]  Dataout;

  input [LENGTH:1]  DataExp;

  integer i;

  reg [LENGTH:1]  DataBack;

  begin

    test.jtag_model.Clk_bit(1'b1,1'b0,actual);// Transition from RT_IDLE to SELECT_DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from SELECT_DR to CAPTURE_DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from CAPTURE_DR to SHIFT_DR

    for (i = 1; i <= LENGTH; i = i+1)

       test.jtag_model.Clk_bit((i==LENGTH),Dataout[i],DataBack[i]);

    $display  ("%t  %m    Shift_data_register    wr-%h  exp-%h rd-%h    ",$realtime,Dataout,DataExp,DataBack  );

   if (DataBack  != DataExp )

   begin

   test.cg.fail  (" Shift_cmp  receive error  ");

   end

    test.jtag_model.Clk_bit(1'b1,1'b0,actual);//Transition from EXIT1-DR to UPDATE-DR

    test.jtag_model.Clk_bit(1'b0,1'b0,actual);// Transition from UPDATE-DR to IDLE

  end

endtask // ShiftRegister