keyboardtest.v

键盘去抖动CPLD设计经过验证,可以直接用数码管显示,同时也希望大家给于新想法

//-----------------------------
//Keyboard test program
//Filename : keyboardtest.v
//-----------------------------
module keyboardtest
	(
		CLK,
		RESET,
		ROW_in,
		COLUMN,
		seven
	);


	input	CLK;
	input	RESET;
	input	[3:0]	ROW_in;

	output	[3:0]	COLUMN;
	output	[7:0]	seven;

	wire	clko;
	wire	keyin;
	wire	keyout;
	wire	[1:0]	SCAN_CODE;
	wire	[3:0]	REAL_code;

cnt5 clkdiv	(	.in(CLK), .out(clko));

debounce keydeb	(	.clk(clko), .rst(~RESET), .keyin(keyin), .K_out(keyout)); 

CODE codegen	(	.CLK(CLK), .SCAN_CODE(SCAN_CODE));

keypress_det key_select	(	.SCAN_CODE(SCAN_CODE), .ROW(ROW_in), .COLUMN(COLUMN),
							.PRESSOUT(keyin), .PRESSIN(keyout), .REAL_code(REAL_code));

sevenseg SEVEN_DSP	(	.hex(REAL_code), .seg(seven));

endmodule