crystal.bdf

VHDL基础的编程源代码

/*
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 120 112 288 128)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "clock_24M" (rect 5 0 56 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))
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		(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)))
	(annotation_block (location)(rect 32 128 120 160))
)
(pin
	(input)
	(rect 120 96 288 112)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "reset" (rect 5 0 29 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))
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		(line (pt 117 12)(pt 121 8)(line_width 1))
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	(annotation_block (location)(rect 32 64 120 96))
)
(pin
	(input)
	(rect 120 280 288 296)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "clock_40M" (rect 5 0 56 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))
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	(annotation_block (location)(rect 32 296 120 328))
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(pin
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	(rect 464 128 640 144)
	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
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	(pt 0 8)
	(drawing
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		(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))
	)
	(annotation_block (location)(rect 640 144 728 176))
)
(pin
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	(rect 464 296 640 312)
	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
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	(pt 0 8)
	(drawing
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		(line (pt 78 12)(pt 82 8)(line_width 1))
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	(annotation_block (location)(rect 640 312 728 344))
)
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	(rect 320 88 464 184)
	(text "counter" (rect 5 0 41 12)(font "Arial" ))
	(text "inst" (rect 8 80 25 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clock" (rect 0 0 25 12)(font "Arial" ))
		(text "clock" (rect 21 27 46 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
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		(text "reset" (rect 21 43 45 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 144 32)
		(bidir)
		(text "counter[3..0]" (rect 0 0 62 12)(font "Arial" ))
		(text "counter[3..0]" (rect 61 27 123 39)(font "Arial" ))
		(line (pt 144 32)(pt 128 32)(line_width 3))
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	(port
		(pt 144 48)
		(bidir)
		(text "carrier" (rect 0 0 30 12)(font "Arial" ))
		(text "carrier" (rect 93 43 123 55)(font "Arial" ))
		(line (pt 144 48)(pt 128 48)(line_width 1))
	)
	(parameter
		"divisor"
		"24000000"
		""
	)
	(parameter
		"inner_counter_width"
		"32"
		""
	)
	(parameter
		"unit"
		"\"1111\""
		""
	)
	(drawing
		(rectangle (rect 16 16 128 80)(line_width 1))
	)
	(annotation_block (parameter)(rect 320 32 480 88))
)
(symbol
	(rect 320 256 464 352)
	(text "counter" (rect 5 0 41 12)(font "Arial" ))
	(text "inst1" (rect 8 80 31 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clock" (rect 0 0 25 12)(font "Arial" ))
		(text "clock" (rect 21 27 46 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "reset" (rect 0 0 24 12)(font "Arial" ))
		(text "reset" (rect 21 43 45 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 144 32)
		(bidir)
		(text "counter[3..0]" (rect 0 0 62 12)(font "Arial" ))
		(text "counter[3..0]" (rect 61 27 123 39)(font "Arial" ))
		(line (pt 144 32)(pt 128 32)(line_width 3))
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	(port
		(pt 144 48)
		(bidir)
		(text "carrier" (rect 0 0 30 12)(font "Arial" ))
		(text "carrier" (rect 93 43 123 55)(font "Arial" ))
		(line (pt 144 48)(pt 128 48)(line_width 1))
	)
	(parameter
		"divisor"
		"40000000"
		""
	)
	(parameter
		"inner_counter_width"
		"32"
		""
	)
	(parameter
		"unit"
		"\"1111\""
		""
	)
	(drawing
		(rectangle (rect 16 16 128 80)(line_width 1))
	)
	(annotation_block (parameter)(rect 320 200 480 256))
)
(connector
	(pt 288 120)
	(pt 320 120)
)
(connector
	(pt 288 288)
	(pt 320 288)
)
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	(pt 304 104)
)
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	(pt 304 304)
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	(pt 304 104)
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(connector
	(pt 304 136)
	(pt 304 304)
)
(junction (pt 304 136))