display.bsf

程序用VHDL实现： 利用一秒定时测量频率 并且显示

/*
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) 1991-2004 Altera Corporation
Any  megafunction  design,  and related netlist (encrypted  or  decrypted),
support information,  device programming or simulation file,  and any other
associated  documentation or information  provided by  Altera  or a partner
under  Altera's   Megafunction   Partnership   Program  may  be  used  only
to program  PLD  devices (but not masked  PLD  devices) from  Altera.   Any
other  use  of such  megafunction  design,  netlist,  support  information,
device programming or simulation file,  or any other  related documentation
or information  is prohibited  for  any  other purpose,  including, but not
limited to  modification,  reverse engineering,  de-compiling, or use  with
any other  silicon devices,  unless such use is  explicitly  licensed under
a separate agreement with  Altera  or a megafunction partner.  Title to the
intellectual property,  including patents,  copyrights,  trademarks,  trade
secrets,  or maskworks,  embodied in any such megafunction design, netlist,
support  information,  device programming or simulation file,  or any other
related documentation or information provided by  Altera  or a megafunction
partner, remains with Altera, the megafunction partner, or their respective
licensors. No other licenses, including any licenses needed under any third
party's intellectual property, are provided herein.
*/
(header "symbol" (version "1.1"))
(symbol
	(rect 16 16 184 176)
	(text "display" (rect 5 0 40 12)(font "Arial" ))
	(text "inst" (rect 8 144 25 156)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "hou10[3..0]" (rect 0 0 55 12)(font "Arial" ))
		(text "hou10[3..0]" (rect 21 27 76 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 3))
	)
	(port
		(pt 0 48)
		(input)
		(text "hou1[3..0]" (rect 0 0 49 12)(font "Arial" ))
		(text "hou1[3..0]" (rect 21 43 70 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 3))
	)
	(port
		(pt 0 64)
		(input)
		(text "min10[3..0]" (rect 0 0 55 12)(font "Arial" ))
		(text "min10[3..0]" (rect 21 59 76 71)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 3))
	)
	(port
		(pt 0 80)
		(input)
		(text "min1[3..0]" (rect 0 0 49 12)(font "Arial" ))
		(text "min1[3..0]" (rect 21 75 70 87)(font "Arial" ))
		(line (pt 0 80)(pt 16 80)(line_width 3))
	)
	(port
		(pt 0 96)
		(input)
		(text "sec10[3..0]" (rect 0 0 55 12)(font "Arial" ))
		(text "sec10[3..0]" (rect 21 91 76 103)(font "Arial" ))
		(line (pt 0 96)(pt 16 96)(line_width 3))
	)
	(port
		(pt 0 112)
		(input)
		(text "sec1[3..0]" (rect 0 0 49 12)(font "Arial" ))
		(text "sec1[3..0]" (rect 21 107 70 119)(font "Arial" ))
		(line (pt 0 112)(pt 16 112)(line_width 3))
	)
	(port
		(pt 0 128)
		(input)
		(text "clk" (rect 0 0 14 12)(font "Arial" ))
		(text "clk" (rect 21 123 35 135)(font "Arial" ))
		(line (pt 0 128)(pt 16 128)(line_width 1))
	)
	(port
		(pt 168 32)
		(output)
		(text "ledout[6..0]" (rect 0 0 55 12)(font "Arial" ))
		(text "ledout[6..0]" (rect 92 27 147 39)(font "Arial" ))
		(line (pt 168 32)(pt 152 32)(line_width 3))
	)
	(port
		(pt 168 48)
		(output)
		(text "ledpt" (rect 0 0 23 12)(font "Arial" ))
		(text "ledpt" (rect 124 43 147 55)(font "Arial" ))
		(line (pt 168 48)(pt 152 48)(line_width 1))
	)
	(port
		(pt 168 64)
		(output)
		(text "sa" (rect 0 0 11 12)(font "Arial" ))
		(text "sa" (rect 136 59 147 71)(font "Arial" ))
		(line (pt 168 64)(pt 152 64)(line_width 1))
	)
	(port
		(pt 168 80)
		(output)
		(text "sb" (rect 0 0 11 12)(font "Arial" ))
		(text "sb" (rect 136 75 147 87)(font "Arial" ))
		(line (pt 168 80)(pt 152 80)(line_width 1))
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	(port
		(pt 168 96)
		(output)
		(text "sc" (rect 0 0 11 12)(font "Arial" ))
		(text "sc" (rect 136 91 147 103)(font "Arial" ))
		(line (pt 168 96)(pt 152 96)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 152 144)(line_width 1))
	)
)