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📁 在ＶＨＤＬ上编写了UART通信协议
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123 
/*
WARNING: Do NOT edit the input and output ports in this file in a text
editor if you plan to continue editing the block that represents it in
the Block Editor! File corruption is VERY likely to occur.
*/

/*
Copyright (C) 1991-2006 Altera Corporation
Your use of Altera Corporation's design tools, logic functions 
and other software and tools, and its AMPP partner logic 
functions, and any output files any of the foregoing 
(including device programming or simulation files), and any 
associated documentation or information are expressly subject 
to the terms and conditions of the Altera Program License 
Subscription Agreement, Altera MegaCore Function License 
Agreement, or other applicable license agreement, including, 
without limitation, that your use is for the sole purpose of 
programming logic devices manufactured by Altera and sold by 
Altera or its authorized distributors.  Please refer to the 
applicable agreement for further details.
*/

HEADER
{
	VERSION = 1;
	TIME_UNIT = ns;
	SIMULATION_TIME = 0.0;
	GRID_PHASE = 0.0;
	GRID_PERIOD = 10.0;
	GRID_DUTY_CYCLE = 50;
}

SIGNAL("clk1")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "";
}

SIGNAL("clk16")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "";
}

SIGNAL("cnt")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 4;
	LSB_INDEX = 0;
	DIRECTION = REGISTERED;
	PARENT = "";
}

SIGNAL("cnt[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "cnt";
}

SIGNAL("cnt[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "cnt";
}

SIGNAL("cnt[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "cnt";
}

SIGNAL("cnt[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "cnt";
}

SIGNAL("cs")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "";
}

SIGNAL("data")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 8;
	LSB_INDEX = 0;
	DIRECTION = BIDIR;
	PARENT = "";
}

SIGNAL("data[7]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = BIDIR;
	PARENT = "data";
}

SIGNAL("data[6]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = BIDIR;
	PARENT = "data";
}

SIGNAL("data[5]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = BIDIR;
	PARENT = "data";
}

SIGNAL("data[4]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = BIDIR;
	PARENT = "data";
}

SIGNAL("data[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = BIDIR;
	PARENT = "data";
}

SIGNAL("data[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = BIDIR;
	PARENT = "data";
}

SIGNAL("data[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = BIDIR;
	PARENT = "data";
}

SIGNAL("data[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = BIDIR;
	PARENT = "data";
}

SIGNAL("err")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("r_shift")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 12;
	LSB_INDEX = 0;
	DIRECTION = REGISTERED;
	PARENT = "";
}

SIGNAL("r_shift[11]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[10]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[9]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[8]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[7]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[6]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[5]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[4]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("r_shift[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "r_shift";
}

SIGNAL("rbuf")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 8;
	LSB_INDEX = 0;
	DIRECTION = REGISTERED;
	PARENT = "";
}

SIGNAL("rbuf[7]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rbuf";
}

SIGNAL("rbuf[6]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rbuf";
}

SIGNAL("rbuf[5]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rbuf";
}

SIGNAL("rbuf[4]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rbuf";
}

SIGNAL("rbuf[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rbuf";
}

SIGNAL("rbuf[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rbuf";
}

SIGNAL("rbuf[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rbuf";
}

SIGNAL("rbuf[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rbuf";
}

SIGNAL("rd")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "";
}

SIGNAL("receive")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "";
}

SIGNAL("ri")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("rst")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "";
}

SIGNAL("rxd")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = INPUT;
	PARENT = "";
}

SIGNAL("rxdcnt")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 4;
	LSB_INDEX = 0;
	DIRECTION = REGISTERED;
	PARENT = "";
}

SIGNAL("rxdcnt[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rxdcnt";
}

SIGNAL("rxdcnt[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rxdcnt";
}

SIGNAL("rxdcnt[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rxdcnt";
}

SIGNAL("rxdcnt[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "rxdcnt";
}

SIGNAL("t_shift")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 12;
	LSB_INDEX = 0;
	DIRECTION = REGISTERED;
	PARENT = "";
}

SIGNAL("t_shift[11]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[10]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[9]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[8]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[7]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[6]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[5]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[4]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("t_shift[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "t_shift";
}

SIGNAL("tbuf")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 8;
	LSB_INDEX = 0;
	DIRECTION = REGISTERED;
	PARENT = "";
}

SIGNAL("tbuf[7]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "tbuf";
}

SIGNAL("tbuf[6]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "tbuf";
}

SIGNAL("tbuf[5]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "tbuf";
}

SIGNAL("tbuf[4]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "tbuf";
}

SIGNAL("tbuf[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "tbuf";
}

SIGNAL("tbuf[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "tbuf";
}

SIGNAL("tbuf[1]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "tbuf";
}

SIGNAL("tbuf[0]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "tbuf";
}

SIGNAL("ti")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("txd")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = OUTPUT;
	PARENT = "";
}

SIGNAL("txdcnt")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = BUS;
	WIDTH = 4;
	LSB_INDEX = 0;
	DIRECTION = REGISTERED;
	PARENT = "";
}

SIGNAL("txdcnt[3]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "txdcnt";
}

SIGNAL("txdcnt[2]")
{
	VALUE_TYPE = NINE_LEVEL_BIT;
	SIGNAL_TYPE = SINGLE_BIT;
	WIDTH = 1;
	LSB_INDEX = -1;
	DIRECTION = REGISTERED;
	PARENT = "txdcnt";
}

SIGNAL("txdcnt[1]")
123

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