den_lcm_test.v

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// --------------------------------------------------------------------
// Copyright (c) 2005 by Terasic Technologies Inc. 
// --------------------------------------------------------------------
//
// Permission:
//
//   Terasic grants permission to use and modify this code for use
//   in synthesis for all Terasic Development Boards and Altera Development 
//   Kits made by Terasic.  Other use of this code, including the selling 
//   ,duplication, or modification of any portion is strictly prohibited.
//
// Disclaimer:
//
//   This VHDL/Verilog or C/C++ 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.  Terasic provides no warranty regarding the use 
//   or functionality of this code.
//
// --------------------------------------------------------------------
//           
//                     Terasic Technologies Inc
//                     356 Fu-Shin E. Rd Sec. 1. JhuBei City,
//                     HsinChu County, Taiwan
//                     302
//
//                     web: http://www.terasic.com/
//                     email: [e-mail]
//
// --------------------------------------------------------------------
//
// Major Functions:	DEN 3'6 LCD Moudule Test
//
// --------------------------------------------------------------------
//
// Revision History :
// --------------------------------------------------------------------
//   Ver  :| Author            :| Mod. Date :| Changes Made:
//   V1.0 :| Johnny Fan        :| 07/06/20  :|      Initial Revision
// --------------------------------------------------------------------

module DEN_LCM_TEST
	(
		////////////////////////	Clock Input	 	////////////////////////
		iCLK_50,
		////////////////////////	Push Button		////////////////////////
		iKEY,		
		////////////////////////////	LED		////////////////////////////
		oLED,
		////////////////////////////	3.6' LCM Interface ////////////////////////////
		oLCM_DATA,
		oLCM_GRST,
		oLCM_SHDB,
		oLCM_DCLK,
		oLCM_HSYNC,
		oLCM_VSYNC,
		oLCM_SCLK,
		LCM_SDAT,
		oLCM_SCEN,
	);

//===========================================================================
// PORT declarations
//===========================================================================
////////////////////////	Clock Input	 	////////////////////////
input			iCLK_50;			//	50 MHz
////////////////////////	Push Button		////////////////////////
input	[3:0]	iKEY;				//	Pushbutton[3:0]
////////////////////////////	LED		////////////////////////////
output	[7:0]	oLED;				//	LED [7:0]
////////////////////////////	3.6' LCM Interface     ////////////////////////////
output 	[7:0]	oLCM_DATA;  		//	LCM Data 8 Bits
output 			oLCM_GRST;  		//	LCM Global Reset
output 			oLCM_SHDB;  		//	LCM Sleep Mode
output 			oLCM_DCLK;  		//	LCM Clcok
output 			oLCM_HSYNC; 		//	LCM HSYNC
output 			oLCM_VSYNC; 		//	LCM	VSYNC
output 			oLCM_SCLK;  		//	LCM I2C Clock
inout 			LCM_SDAT;   		//	LCM I2C Data
output 			oLCM_SCEN;  		//	LCM I2C Chip Enable
                         
//=============================================================================
// REG/WIRE declarations
//=============================================================================
reg				CLK_25;  // clock 25 M hz
wire	[7:0]	LCM_DATA;		
wire			LCM_GRST;			
wire			LCM_SHDB;		
wire			LCM_DCLK;		
wire			LCM_HSYNC;		
wire			LCM_VSYNC;		
wire			LCM_SCLK;		
wire			LCM_SDAT;		
wire			LCM_SCEN;		
wire			DLY_RST_0;
//=============================================================================
// Structural coding
//=============================================================================
assign oLED = 8'hff;


// 50Mhz  clock divide into 25 Mhz
always@(posedge iCLK_50)
begin
	CLK_25 <= ~CLK_25;
end	

// This fucntion is used for LCD color pattern generating
// and disply timing control 
					
LCM_Display		u1	(		
					.iCLK(CLK_25),
					.iRST_N(iKEY[0]),
					.iKEY1(iKEY[1]),
					.oLCM_VSYNC(oLCM_VSYNC),
                    .oLCM_HSYNC(oLCM_HSYNC),
					.oLCM_GRST(oLCM_GRST),
                    .oLCM_DCLK(oLCM_DCLK),
                    .oLCM_SHDB(oLCM_SHDB),
					.oLCM_DATA(oLCM_DATA)
					);
// This function is used for the register configuration of 
// the LCD module
			
I2S_LCM_Config 	u2	(	//	Host Side
						.iCLK(iCLK_50),
						.iRST_N(DLY_RST_0),
						//	I2C Side
						.I2S_SCLK(oLCM_SCLK),
						.I2S_SDAT(LCM_SDAT),
						.I2S_SCEN(oLCM_SCEN)
					);			

Reset_Delay		u3	(	
					.iCLK(iCLK_50),
					.iRST(iKEY[0]),
					.oRST_0(DLY_RST_0),
					);


endmodule