`timescale 1ns / 1ps

module QuadSPImTb ();


parameter CLK_PERIOD = 8.13; // Clock period in ns

//================================================================================
//  REG/WIRE
//================================================================================
reg rst;
reg clk;

// localparam [31:0] startData = 32'h1;
localparam [31:0] startData = 32'h0A0B0C0D;

reg [31:0] data;

wire [1:0] widthSel  = 2'h3;
wire clockPol = 1'b0;
wire clockPhase = 1'b0;
wire endianSel = 1'b0;
wire lag = 1'b0;
wire leadx = 1'b0;
wire [5:0] stopDelay = 6'h1;
wire selSt = 1'b1;
wire val;

reg [31:0] tbCnt;

wire start = (tbCnt>=100);
wire fifoEmpty = (tbCnt >= 500);

//================================================================================
//  ASSIGNMENTS
//================================================================================


//================================================================================
//  CODING
//================================================================================	

always #(CLK_PERIOD/2) clk = ~clk;

initial begin
	clk = 0;
	rst = 0;
	#40
	rst = 1;
	#100
	rst = 0;
end

always @(posedge clk) begin
	if (rst) begin
		tbCnt <= 0;
	end else begin
		tbCnt <= tbCnt+1;
	end
end

always @(posedge clk) begin
	if (rst) begin
		data <= startData;
	end else if (val) begin
		// data <= data+32'h1000;
		data <= data;
	end
end

QuadSPIm QuadSPIm
(
	.Clk_i(clk),
	.Start_i(start),
	.Rst_i(rst),
	.EmptyFlag_i(fifoEmpty),
	.SpiData_i(data),
	.Sck_o(),
	.Ss_o(),
	.Mosi0_o(),
	.Mosi1_o(),
	.Mosi2_o(),
	.Mosi3_o(),
	.WidthSel_i(widthSel),
	.PulsePol_i(clockPol),
	.ClockPhase_i(clockPhase),
	.EndianSel_i(endianSel),
	.Lag_i(lag),
	.Lead_i(leadx),
	.Stop_i(stopDelay),
	.SelSt_i(selSt),
	.Val_o(val)
);
			
endmodule