test.vhd.bak

来自「tranmiss data from kit to computer via c」· BAK 代码 · 共 74 行

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;

ENTITY TEST IS
PORT(
		CLOCK_50	: IN STD_LOGIC;
		UART_RXD	: IN STD_LOGIC;
		SW			: IN STD_LOGIC_VECTOR(9 DOWNTO 0);
		KEY			: IN STD_LOGIC_VECTOR(3 DOWNTO 0);
		
		UART_TXD	: OUT STD_LOGIC;
		LEDR		: OUT STD_LOGIC_VECTOR(9 DOWNTO 0);
		LEDG		: OUT STD_LOGIC_VECTOR(7 DOWNTO 0);
		HEX0		: OUT STD_LOGIC_VECTOR(0 TO 6);
		HEX1		: OUT STD_LOGIC_VECTOR(0 TO 6);
		HEX2		: OUT STD_LOGIC_VECTOR(0 TO 6);
		HEX3		: OUT STD_LOGIC_VECTOR(0 TO 6)
	);
END TEST;

ARCHITECTURE STRUCT OF TEST IS
--		COMPONENT		----------------------------
COMPONENT UART_TX
GENERIC(
		SYNC_CLOCK	: INTEGER := 50000000;
		BAUD_RATE	: INTEGER := 9600
	);
PORT(
		CLOCK		: IN STD_LOGIC;
		TXD_START	: IN STD_LOGIC;
		TXD_DATA	: IN STD_LOGIC_VECTOR(7 DOWNTO 0);
		TXD			: OUT STD_LOGIC;
		TXD_BUSY	: OUT STD_LOGIC
	);
END COMPONENT;
--		SIGNAL			-----------------------------
SIGNAL TXD			: STD_LOGIC;
SIGNAL TXD_START	: STD_LOGIC;
SIGNAL TXD_DATA		: STD_LOGIC_VECTOR(7 DOWNTO 0);
SIGNAL TXD_BUSY		: STD_LOGIC;
BEGIN
	
	TXD_BLOCK: UART_TX 
		GENERIC MAP(
			50000000, 14400
		)
		PORT MAP(
			CLOCK => CLOCK_50,
			TXD_START => TXD_START,
			TXD_DATA => TXD_DATA,
			TXD => TXD,
			TXD_BUSY => TXD_BUSY
		);
		
	UART_TXD <= TXD;
	TXD_DATA <= SW(7 DOWNTO 0);
	TXD_START <= SW(9);
	LEDR(9) <= SW(9);
	LEDR(7 DOWNTO 0) <= SW(7 DOWNTO 0);
	LEDR(8) <= TXD_BUSY;
		
END STRUCT;