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| // ================================================================== | |||
| // >>>>>>>>>>>>>>>>>>>>>>> COPYRIGHT NOTICE <<<<<<<<<<<<<<<<<<<<<<<<< | |||
| // ------------------------------------------------------------------ | |||
| // Copyright (c) 2017 by Lattice Semiconductor Corporation | |||
| // ALL RIGHTS RESERVED | |||
| // ------------------------------------------------------------------ | |||
| // | |||
| // Permission: | |||
| // | |||
| // Lattice SG Pte. Ltd. grants permission to use this code | |||
| // pursuant to the terms of the Lattice Reference Design License Agreement. | |||
| // | |||
| // | |||
| // Disclaimer: | |||
| // | |||
| // This VHDL or Verilog source code is intended as a design reference | |||
| // which illustrates how these types of functions can be implemented. | |||
| // It is the user's responsibility to verify their design for | |||
| // consistency and functionality through the use of formal | |||
| // verification methods. Lattice provides no warranty | |||
| // regarding the use or functionality of this code. | |||
| // | |||
| // -------------------------------------------------------------------- | |||
| // | |||
| // Lattice SG Pte. Lt++++++++++++++++d. | |||
| // 101 Thomson Road, United Square #07-02 | |||
| // Singapore 307591 | |||
| // | |||
| // | |||
| // TEL: 1-800-Lattice (USA and Canada) | |||
| // +65-6631-2000 (Singapore) | |||
| // +1-503-268-8001 (other locations) | |||
| // | |||
| // web: http://www.latticesemi.com/ | |||
| // email: techsupport@latticesemi.com | |||
| // | |||
| // -------------------------------------------------------------------- | |||
| // | |||
| // Project: iCE5UP 5K RGB LED Tutorial | |||
| // File: testbench.v | |||
| // Title: LED PWM control | |||
| // Description: Creates RGB PWM per control inputs | |||
| // | |||
| // | |||
| // -------------------------------------------------------------------- | |||
| // | |||
| //------------------------------------------------------------ | |||
| // Notes: | |||
| // | |||
| // | |||
| //------------------------------------------------------------ | |||
| // Development History: | |||
| // | |||
| // __DATE__ _BY_ _REV_ _DESCRIPTION___________________________ | |||
| // 04/05/17 RK 1.0 Initial tutorial design for Lattice Radiant | |||
| // | |||
| //------------------------------------------------------------ | |||
| // Dependencies: | |||
| // | |||
| // | |||
| // | |||
| //------------------------------------------------------------ | |||
| //------------------------------------------------------------ | |||
| // | |||
| // | |||
| // Testbench | |||
| // | |||
| //------------------------------------------------------------ | |||
| `timescale 1ns/1ps | |||
| module tb; | |||
| //GSR GSR_INST ( .GSR(1)); | |||
| //PUR PUR_INST ( .PUR(1)); | |||
| reg clk12M; | |||
| reg rst; | |||
| reg [1:0]color_sel; | |||
| reg rw; | |||
| wire REDn; | |||
| wire BLUn; | |||
| wire GRNn; | |||
| wire RED; | |||
| wire BLU; | |||
| wire GRN; | |||
| led_top dut(.clk12M(clk12M), | |||
| .rst(rst), | |||
| .color_sel(color_sel), | |||
| .rw(rw), | |||
| .REDn(REDn), | |||
| .BLUn(BLUn), | |||
| .GRNn(GRNn), | |||
| .RED(RED), | |||
| .BLU(BLU), | |||
| .GRN(GRN) | |||
| ); | |||
| initial | |||
| begin | |||
| clk12M=1'b0; | |||
| end | |||
| always | |||
| #41.666666 clk12M=~clk12M; //clock generation | |||
| initial | |||
| begin | |||
| rst=1'b1; | |||
| color_sel=2'b01; | |||
| RGB_Blink_En=1'b0; | |||
| #1000 | |||
| rst=1'b0; | |||
| #3000000 | |||
| color_sel=2'b11; | |||
| #3000000 | |||
| $stop; | |||
| end | |||
| initial | |||
| begin | |||
| $monitor("time=%t,RGB_Blink_En=%d,rst=%d,color_sel=%2d, REDn=%d, BLUn=%d, GRNn=%d",$time,RGB_Blink_En,rst,color_sel,REDn,BLUn,GRNn); | |||
| end | |||
| endmodule | |||
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