sled.bdf

很多vhdl例程代码

/*
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) 1991-2005 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 "graphic" (version "1.3"))
(pin
	(input)
	(rect -96 72 72 88)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "clock" (rect 5 0 30 12)(font "Arial" ))
	(pt 168 8)
	(drawing
		(line (pt 92 12)(pt 117 12)(line_width 1))
		(line (pt 92 4)(pt 117 4)(line_width 1))
		(line (pt 121 8)(pt 168 8)(line_width 1))
		(line (pt 92 12)(pt 92 4)(line_width 1))
		(line (pt 117 4)(pt 121 8)(line_width 1))
		(line (pt 117 12)(pt 121 8)(line_width 1))
	)
	(text "VCC" (rect 136 7 156 17)(font "Arial" (font_size 6)))
)
(pin
	(output)
	(rect 600 80 776 96)
	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
	(text "seg[7..0]" (rect 90 0 133 12)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
)
(pin
	(output)
	(rect 440 232 616 248)
	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
	(text "dig[7..0]" (rect 90 0 130 12)(font "Arial" ))
	(pt 0 8)
	(drawing
		(line (pt 0 8)(pt 52 8)(line_width 1))
		(line (pt 52 4)(pt 78 4)(line_width 1))
		(line (pt 52 12)(pt 78 12)(line_width 1))
		(line (pt 52 12)(pt 52 4)(line_width 1))
		(line (pt 78 4)(pt 82 8)(line_width 1))
		(line (pt 82 8)(pt 78 12)(line_width 1))
		(line (pt 78 12)(pt 82 8)(line_width 1))
	)
)
(symbol
	(rect 416 56 544 152)
	(text "decl7s" (rect 5 0 36 12)(font "Arial" ))
	(text "inst" (rect 8 80 25 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "d[3..0]" (rect 0 0 31 12)(font "Arial" ))
		(text "d[3..0]" (rect 21 27 52 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 3))
	)
	(port
		(pt 128 32)
		(output)
		(text "seg[7..0]" (rect 0 0 43 12)(font "Arial" ))
		(text "seg[7..0]" (rect 64 27 107 39)(font "Arial" ))
		(line (pt 128 32)(pt 112 32)(line_width 3))
	)
	(drawing
		(rectangle (rect 16 16 112 80)(line_width 1))
	)
)
(symbol
	(rect 232 48 376 112)
	(text "counter" (rect 51 1 101 17)(font "Arial" (font_size 10)))
	(text "inst2" (rect 8 48 31 60)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clock" (rect 0 0 29 14)(font "Arial" (font_size 8)))
		(text "clock" (rect 26 26 55 40)(font "Arial" (font_size 8)))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 144 40)
		(output)
		(text "q[3..0]" (rect 0 0 35 14)(font "Arial" (font_size 8)))
		(text "q[3..0]" (rect 95 34 130 48)(font "Arial" (font_size 8)))
		(line (pt 144 40)(pt 128 40)(line_width 3))
	)
	(drawing
		(text "up counter" (rect 84 17 135 29)(font "Arial" ))
		(line (pt 16 16)(pt 128 16)(line_width 1))
		(line (pt 128 16)(pt 128 48)(line_width 1))
		(line (pt 128 48)(pt 16 48)(line_width 1))
		(line (pt 16 48)(pt 16 16)(line_width 1))
		(line (pt 16 26)(pt 22 32)(line_width 1))
		(line (pt 22 32)(pt 16 38)(line_width 1))
	)
)
(symbol
	(rect 376 240 408 272)
	(text "GND" (rect 8 16 29 26)(font "Arial" (font_size 6)))
	(text "inst3" (rect 3 21 26 33)(font "Arial" )(invisible))
	(port
		(pt 16 0)
		(output)
		(text "1" (rect 18 0 23 12)(font "Courier New" (bold))(invisible))
		(text "1" (rect 18 0 23 12)(font "Courier New" (bold))(invisible))
		(line (pt 16 8)(pt 16 0)(line_width 1))
	)
	(drawing
		(line (pt 8 8)(pt 16 16)(line_width 1))
		(line (pt 16 16)(pt 24 8)(line_width 1))
		(line (pt 8 8)(pt 24 8)(line_width 1))
	)
)
(symbol
	(rect 72 48 208 144)
	(text "int_div" (rect 5 0 38 12)(font "Arial" ))
	(text "inst1" (rect 8 80 31 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "Clockin" (rect 0 0 36 12)(font "Arial" ))
		(text "Clockin" (rect 21 27 57 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 136 32)
		(output)
		(text "ClockOut" (rect 0 0 46 12)(font "Arial" ))
		(text "ClockOut" (rect 69 27 115 39)(font "Arial" ))
		(line (pt 136 32)(pt 120 32)(line_width 1))
	)
	(parameter
		"N"
		"48000000"
		""
	)
	(drawing
		(rectangle (rect 16 16 120 80)(line_width 1))
	)
	(annotation_block (parameter)(rect 168 24 288 56))
)
(connector
	(pt 416 88)
	(pt 376 88)
	(bus)
)
(connector
	(pt 232 80)
	(pt 208 80)
)
(connector
	(pt 544 88)
	(pt 600 88)
	(bus)
)
(connector
	(pt 440 240)
	(pt 392 240)
	(bus)
)