led_display.bdf

是一些很好的FPGA设计实例

/*
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.
*/
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(pin
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	(text "CLK" (rect 5 0 33 15)(font "Arial" ))
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(pin
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	(rect 160 152 328 168)
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	(rect 744 240 920 256)
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)
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		(line (pt 0 40)(pt 16 40)(line_width 1))
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		(line (pt 0 72)(pt 16 72)(line_width 1))
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		(pt 120 56)
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		(line (pt 104 72)(pt 120 72)(line_width 1))
	)
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		(line (pt 16 96)(pt 104 96)(line_width 1))
		(line (pt 16 16)(pt 104 16)(line_width 1))
		(line (pt 104 96)(pt 104 16)(line_width 1))
		(line (pt 16 96)(pt 16 16)(line_width 1))
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	(rect 456 376 488 408)
	(text "GND" (rect 8 3 33 16)(font "Arial" (font_size 6)))
	(text "inst2" (rect 3 -4 34 11)(font "Arial" )(invisible))
	(port
		(pt 16 32)
		(output)
		(text "1" (rect 18 0 26 16)(font "Courier New" (bold))(invisible))
		(text "1" (rect 18 16 26 32)(font "Courier New" (bold))(invisible))
		(line (pt 16 24)(pt 16 32)(line_width 1))
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	(drawing
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		(line (pt 16 16)(pt 24 24)(line_width 1))
		(line (pt 8 24)(pt 24 24)(line_width 1))
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	(flipx)
)
(symbol
	(rect 584 200 696 296)
	(text "LPM_ROM" (rect 25 0 117 19)(font "Arial" (font_size 10)))
	(text "inst" (rect 3 85 26 100)(font "Arial" ))
	(port
		(pt 0 24)
		(input)
		(text "address[LPM_WIDTHAD-1..0]" (rect 20 17 224 33)(font "Arial" (font_size 8)))
		(text "address[]" (rect 20 17 83 33)(font "Arial" (font_size 8)))
		(line (pt 0 24)(pt 16 24)(line_width 3))
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		(pt 0 40)
		(input)
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		(text "inclock" (rect 20 33 68 49)(font "Arial" (font_size 8)))
		(line (pt 0 40)(pt 16 40)(line_width 1))
		(unused)
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		(pt 0 56)
		(input)
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		(text "outclock" (rect 20 49 77 65)(font "Arial" (font_size 8)))
		(line (pt 0 56)(pt 16 56)(line_width 1))
		(unused)
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	(port
		(pt 0 72)
		(input)
		(text "memenab" (rect 20 65 87 81)(font "Arial" (font_size 8)))
		(text "memenab" (rect 20 65 87 81)(font "Arial" (font_size 8)))
		(line (pt 0 72)(pt 16 72)(line_width 1))
		(unused)
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		(pt 112 48)
		(output)
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		(text "q[]" (rect 80 41 97 57)(font "Arial" (font_size 8)))
		(line (pt 96 48)(pt 112 48)(line_width 3))
	)
	(parameter
		"LPM_ADDRESS_CONTROL"
		"\"UNREGISTERED\""
		"Should the address and control ports be registered?"
		"\"REGISTERED\"" "\"UNREGISTERED\"" 
	)
	(parameter
		"LPM_FILE"
		"LED_DISPLAY.mif"
		"File containing initial contents of memory array"
	)
	(parameter
		"LPM_NUMWORDS"
		"256"
		"Number of memory words, default is 2^LPM_WIDTHAD"
	)
	(parameter
		"LPM_OUTDATA"
		"\"UNREGISTERED\""
		"Should the output data be registered?"
		"\"REGISTERED\"" "\"UNREGISTERED\"" 
	)
	(parameter
		"LPM_WIDTH"
		"16"
		"Data width in bits, any integer > 0"
		" 1" " 2" " 3" " 4" " 5" " 6" " 7" " 8" " 9" "10" "11" "12" "13" "14" "15" "16" "20" "24" "28" "32" "40" "48" "56" "64" 
	)
	(parameter
		"LPM_WIDTHAD"
		"8"
		"Number of address lines, any integer > 0"
		" 1" " 2" " 3" " 4" " 5" " 6" " 7" " 8" " 9" "10" "11" "12" 
	)
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