cpld_for_lcd.v

一个VEILOG HDL程序

module cpld_for_lcd
	(
	RED,GREEN,BLUE,BUFFERED_CLOCK,MSTR_nRST,
	LCD_TYPE,
	LCD_DON,LCD_REV,LCD_CLS,LCD_PSAVE,uP_PC6,LCD_MOD,
	LCD_MDISP,LCD_HSYNC,LCD_VSYNC,LCD_SPL,
	LCD_D,VS,HS,DE		
	);
	input	[17:0] LCD_D;
	input LCD_MDISP,LCD_HSYNC,LCD_VSYNC,LCD_SPL;
	input LCD_DON,LCD_REV,LCD_CLS,LCD_PSAVE,LCD_MOD;
    input BUFFERED_CLOCK,MSTR_nRST;
	input [2:0]LCD_TYPE;
	input uP_PC6;
	output	VS,HS,DE;	
	output [7:0] RED,GREEN,BLUE;
	reg [7:0] RED,GREEN,BLUE;
	reg VS,HS,DE;
	`define LOW  1'b0
	`define HIGH 1'b1
	`define lcd_24bit 'h00
	`define lcd_18bit 'h01
	
	wire [15:0]LCD_D_BUF;
	wire DE_BUF,VS_BUF,HS_BUF;
	
	buf (DE_BUF,LCD_MDISP);
	buf (VS_BUF,LCD_VSYNC);
	buf (HS_BUF,LCD_HSYNC);
	
	buf	(LCD_D_BUF[15],LCD_D[15]); 
	buf (LCD_D_BUF[14],LCD_D[14]);
	buf (LCD_D_BUF[13],LCD_D[13]);	
	buf (LCD_D_BUF[12],LCD_D[12]);
	buf (LCD_D_BUF[11],LCD_D[11]);
	buf (LCD_D_BUF[10],LCD_D[10]);
	buf (LCD_D_BUF[9],LCD_D[9]);
	buf (LCD_D_BUF[8],LCD_D[8]);	
	buf (LCD_D_BUF[7],LCD_D[7]);
	buf (LCD_D_BUF[6],LCD_D[6]);
	buf (LCD_D_BUF[5],LCD_D[5]);
	buf (LCD_D_BUF[4],LCD_D[4]);
	buf (LCD_D_BUF[3],LCD_D[3]);	
	buf (LCD_D_BUF[2],LCD_D[2]);
	buf (LCD_D_BUF[1],LCD_D[1]);
	buf (LCD_D_BUF[0],LCD_D[0]); 	

always @(MSTR_nRST or LCD_D_BUF/*posedge BUFFERED_CLOCK,negedge MSTR_nRST*/)
begin
if (~MSTR_nRST)
begin
 	//VS=`LOW;	//初始值待定
	//HS=`LOW;
	//DE=`LOW;	
end 
else 
begin
	VS=VS_BUF;
	HS=HS_BUF;
	DE=DE_BUF;
	//case (LCD_TYPE)
	//`lcd_24bit:
	//begin      //24位显示
	    BLUE[7]=LCD_D_BUF[14];
	    BLUE[6]=LCD_D_BUF[13];	
		BLUE[5]=LCD_D_BUF[12];
		BLUE[4]=LCD_D_BUF[11];
		BLUE[3]=LCD_D_BUF[10];
		BLUE[2]=LCD_D_BUF[15];
		BLUE[1]=LCD_D_BUF[15];
		BLUE[0]=LCD_D_BUF[15];
		
		GREEN[7]=LCD_D_BUF[9];
		GREEN[6]=LCD_D_BUF[8];	
		GREEN[5]=LCD_D_BUF[7];
		GREEN[4]=LCD_D_BUF[6];
		GREEN[3]=LCD_D_BUF[5];
		GREEN[2]=LCD_D_BUF[15];
		GREEN[1]=LCD_D_BUF[15];
		GREEN[0]=LCD_D_BUF[15];
			
		RED[7]=LCD_D_BUF[4];
		RED[6]=LCD_D_BUF[3];	
		RED[5]=LCD_D_BUF[2];
		RED[4]=LCD_D_BUF[1];
		RED[3]=LCD_D_BUF[0];
		RED[2]=LCD_D_BUF[15];
		RED[1]=LCD_D_BUF[15];
		RED[0]=LCD_D_BUF[15];
	//end
	//`lcd_18bit:
	//begin		//18位显示
	/*	BLUE[7]=LCD_MOD;
		BLUE[6]=LCD_SPL;
		//BLUE[7]=LCD_D_BUF[7];
		//BLUE[6]=LCD_D_BUF[7];
		
		GREEN[7]=LCD_REV;
		GREEN[6]=LCD_PSAVE;
		//GREEN[7]=LCD_D_BUF[15];
	    //GREEN[6]=LCD_D_BUF[15];
		
		RED[7]=LCD_DON;	
		RED[6]=uP_PC6;
		//RED[7]=LCD_D_BUF[15];
		//RED[6]=LCD_D_BUF[15];
			
		
	    BLUE[5]=LCD_D_BUF[14];
	    BLUE[4]=LCD_D_BUF[13];	
		BLUE[3]=LCD_D_BUF[12];
		BLUE[2]=LCD_D_BUF[11];
		BLUE[1]=LCD_D_BUF[10];
		BLUE[0]=LCD_D_BUF[15];
		
		GREEN[5]=LCD_D_BUF[9];
		GREEN[4]=LCD_D_BUF[8];	
		GREEN[3]=LCD_D_BUF[7];
		GREEN[2]=LCD_D_BUF[6];
		GREEN[1]=LCD_D_BUF[5];
		GREEN[0]=LCD_D_BUF[15];
			
		RED[5]=LCD_D_BUF[4];
		RED[4]=LCD_D_BUF[3];	
		RED[3]=LCD_D_BUF[2];
		RED[2]=LCD_D_BUF[1];
		RED[1]=LCD_D_BUF[0];
		RED[0]=LCD_D_BUF[15];*/
	//end
	/*'h02:
	begin
		//待定
	end
endcase*/
end
end

endmodule