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repo2/common/components/usbhostslave/trunk/bench/comboHostSlaveTestHarness.v

`include "timescale.v"

module testHarness( );


// -----------------------------------
// Local Wires
// -----------------------------------
reg clk;
reg rst;
reg usbClk;
wire [8:0] adr;
wire [7:0] masterDout;
wire [7:0] masterDin;
wire [7:0] usbSlaveDout;
wire [7:0] usbHostDout;
wire stb;
wire we;
wire ack;
wire host_stb;
wire slave_stb;
wire DPlusPullup;
wire DPlusPullDown;
wire DMinusPullup;
wire DMinusPulDown;
reg USBWireVP;
reg USBWireVM;
wire [1:0] hostUSBWireDataIn;
wire [1:0] hostUSBWireDataOut;
wire [1:0] slaveUSBWireDataIn;
wire [1:0] slaveUSBWireDataOut;
wire hostUSBWireCtrlOut;
wire slaveUSBWireCtrlOut;

initial begin
$dumpfile("wave.vcd");
$dumpvars(0, testHarness);
end

pullup(DPlusPullup);
pulldown(DPlusPullDown);
pullup(DMinusPullup);
pulldown(DMinusPullDown);

assign hostUSBWireDataIn = {USBWireVP, USBWireVM};
assign slaveUSBWireDataIn = {USBWireVP, USBWireVM};
//always @(hostUSBWireCtrlOut or slaveUSBWireCtrlOut or hostUSBWireDataOut or slaveUSBWireDataOut or
// DPlusPullup or DPlusPullDown or DMinusPullup or DMinusPullDown) begin
always @(*) begin
if (hostUSBWireCtrlOut == 1'b1 && slaveUSBWireCtrlOut == 1'b0)
{USBWireVP, USBWireVM} <= hostUSBWireDataOut;
else if (hostUSBWireCtrlOut == 1'b0 && slaveUSBWireCtrlOut == 1'b1)
{USBWireVP, USBWireVM} <= slaveUSBWireDataOut;
else if (hostUSBWireCtrlOut == 1'b1 && slaveUSBWireCtrlOut == 1'b1)
{USBWireVP, USBWireVM} <= 2'bxx;
else if (hostUSBWireCtrlOut == 1'b0 && slaveUSBWireCtrlOut == 1'b0) begin
if (USBDPlusPullup == 1'b1)
USBWireVP <= DPlusPullup;
else
USBWireVP <= DPlusPullDown;
if (USBDMinusPullup == 1'b1)
USBWireVM <= DMinusPullup;
else
USBWireVM <= DMinusPullDown;
end
end

assign host_stb = ~adr[8] & stb;
assign slave_stb = adr[8] & stb;
assign masterDin = host_stb == 1'b1 ? usbHostDout : usbSlaveDout;

//Parameters declaration:
defparam u_usbHost.HOST_FIFO_DEPTH = 64;
parameter HOST_FIFO_DEPTH = 64;
defparam u_usbHost.HOST_FIFO_ADDR_WIDTH = 6;
parameter HOST_FIFO_ADDR_WIDTH = 6;
defparam u_usbHost.EP0_FIFO_DEPTH = 64;
parameter EP0_FIFO_DEPTH = 64;
defparam u_usbHost.EP0_FIFO_ADDR_WIDTH = 6;
parameter EP0_FIFO_ADDR_WIDTH = 6;
defparam u_usbHost.EP1_FIFO_DEPTH = 64;
parameter EP1_FIFO_DEPTH = 64;
defparam u_usbHost.EP1_FIFO_ADDR_WIDTH = 6;
parameter EP1_FIFO_ADDR_WIDTH = 6;
defparam u_usbHost.EP2_FIFO_DEPTH = 64;
parameter EP2_FIFO_DEPTH = 64;
defparam u_usbHost.EP2_FIFO_ADDR_WIDTH = 6;
parameter EP2_FIFO_ADDR_WIDTH = 6;
defparam u_usbHost.EP3_FIFO_DEPTH = 64;
parameter EP3_FIFO_DEPTH = 64;
defparam u_usbHost.EP3_FIFO_ADDR_WIDTH = 6;
parameter EP3_FIFO_ADDR_WIDTH = 6;
usbHostSlave u_usbHost (
.clk_i(clk),
.rst_i(rst),
.address_i(adr[7:0]),
.data_i(masterDout),
.data_o(usbHostDout),
.we_i(we),
.strobe_i(host_stb),
.ack_o(ack),
.usbClk(usbClk),
.hostSOFSentIntOut(hostSOFSentIntOut),
.hostConnEventIntOut(hostConnEventIntOut),
.hostResumeIntOut(hostResumeIntOut),
.hostTransDoneIntOut(hostTransDoneIntOut),

.slaveSOFRxedIntOut(),
.slaveResetEventIntOut(),
.slaveResumeIntOut(),
.slaveTransDoneIntOut(),
.slaveNAKSentIntOut(),
.slaveVBusDetIntOut(),

.USBWireDataIn(hostUSBWireDataIn),
.USBWireDataInTick(USBWireDataInTick),
.USBWireDataOut(hostUSBWireDataOut),
.USBWireDataOutTick(USBWireDataOutTick),
.USBWireCtrlOut(hostUSBWireCtrlOut),
.USBFullSpeed(USBFullSpeed),
.USBDPlusPullup(),
.USBDMinusPullup(),
.vBusDetect(1'b1)


);



//Parameters declaration:
defparam u_usbSlave.HOST_FIFO_DEPTH = 64;
parameter HOST_FIFO_DEPTH = 64;
defparam u_usbSlave.HOST_FIFO_ADDR_WIDTH = 6;
parameter HOST_FIFO_ADDR_WIDTH = 6;
defparam u_usbSlave.EP0_FIFO_DEPTH = 64;
parameter EP0_FIFO_DEPTH = 64;
defparam u_usbSlave.EP0_FIFO_ADDR_WIDTH = 6;
parameter EP0_FIFO_ADDR_WIDTH = 6;
defparam u_usbSlave.EP1_FIFO_DEPTH = 64;
parameter EP1_FIFO_DEPTH = 64;
defparam u_usbSlave.EP1_FIFO_ADDR_WIDTH = 6;
parameter EP1_FIFO_ADDR_WIDTH = 6;
defparam u_usbSlave.EP2_FIFO_DEPTH = 64;
parameter EP2_FIFO_DEPTH = 64;
defparam u_usbSlave.EP2_FIFO_ADDR_WIDTH = 6;
parameter EP2_FIFO_ADDR_WIDTH = 6;
defparam u_usbSlave.EP3_FIFO_DEPTH = 64;
parameter EP3_FIFO_DEPTH = 64;
defparam u_usbSlave.EP3_FIFO_ADDR_WIDTH = 6;
parameter EP3_FIFO_ADDR_WIDTH = 6;
usbHostSlave u_usbSlave (
.clk_i(clk),
.rst_i(rst),
.address_i(adr[7:0]),
.data_i(masterDout),
.data_o(usbSlaveDout),
.we_i(we),
.strobe_i(slave_stb),
.ack_o(ack),
.usbClk(usbClk),

.hostSOFSentIntOut(),
.hostConnEventIntOut(),
.hostResumeIntOut(),
.hostTransDoneIntOut(),

.slaveSOFRxedIntOut(slaveSOFRxedIntOut),
.slaveResetEventIntOut(slaveResetEventIntOut),
.slaveResumeIntOut(slaveResumeIntOut),
.slaveTransDoneIntOut(slaveTransDoneIntOut),
.slaveNAKSentIntOut(slaveNAKSentIntOut),
.slaveVBusDetIntOut(slaveVBusDetIntOut),

.USBWireDataIn(slaveUSBWireDataIn),
.USBWireDataInTick(USBWireDataInTick),
.USBWireDataOut(slaveUSBWireDataOut),
.USBWireDataOutTick(USBWireDataOutTick),
.USBWireCtrlOut(slaveUSBWireCtrlOut),
.USBFullSpeed(USBFullSpeed),
.USBDPlusPullup(USBDPlusPullup),
.USBDMinusPullup(USBDMinusPullup),
.vBusDetect(1'b1)
);




wb_master_model #(.dwidth(8), .awidth(9)) u_wb_master_model (
.clk(clk),
.rst(rst),
.adr(adr),
.din(masterDin),
.dout(masterDout),
.cyc(),
.stb(stb),
.we(we),
.sel(),
.ack(ack),
.err(1'b0),
.rty(1'b0)
);


//--------------- reset ---------------
initial begin
@(posedge clk);
@(posedge clk);
@(posedge clk);
@(posedge clk);
@(posedge clk);
@(posedge clk);
@(posedge clk);
@(posedge clk);
rst <= 1'b1;
@(posedge clk);
rst <= 1'b0;
@(posedge clk);
end
// ****************************** Clock section ******************************
`define CLK_50MHZ_HALF_PERIOD 10
`define CLK_25MHZ_HALF_PERIOD 20

always begin
#`CLK_25MHZ_HALF_PERIOD clk <= 1'b0;
#`CLK_25MHZ_HALF_PERIOD clk <= 1'b1;
end

always begin
#`CLK_50MHZ_HALF_PERIOD usbClk <= 1'b0;
#`CLK_50MHZ_HALF_PERIOD usbClk <= 1'b1;
end




endmodule

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