test.bdf

基于CYCLONE II的程序,DDS原理的函数信号发生器.采用查表法实现.各位可以参考.

/*
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 from 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 120 352 288 368)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "pin_in[7..0]" (rect 5 0 59 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
	(input)
	(rect 104 248 272 264)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "clk" (rect 5 0 19 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 528 320 704 336)
	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
	(text "pin_out[7..0]" (rect 90 0 151 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 296 200 456 296)
	(text "add_sub" (rect 56 1 113 17)(font "Arial" (font_size 10)))
	(text "inst" (rect 8 80 25 92)(font "Arial" ))
	(port
		(pt 0 40)
		(input)
		(text "dataa[7..0]" (rect 0 0 60 14)(font "Arial" (font_size 8)))
		(text "dataa[7..0]" (rect 4 27 64 41)(font "Arial" (font_size 8)))
		(line (pt 0 40)(pt 64 40)(line_width 3))
	)
	(port
		(pt 0 72)
		(input)
		(text "datab[7..0]" (rect 0 0 60 14)(font "Arial" (font_size 8)))
		(text "datab[7..0]" (rect 4 59 64 73)(font "Arial" (font_size 8)))
		(line (pt 0 72)(pt 64 72)(line_width 3))
	)
	(port
		(pt 0 56)
		(input)
		(text "clock" (rect 0 0 29 14)(font "Arial" (font_size 8)))
		(text "clock" (rect 4 43 33 57)(font "Arial" (font_size 8)))
		(line (pt 0 56)(pt 64 56)(line_width 1))
	)
	(port
		(pt 160 56)
		(output)
		(text "result[7..0]" (rect 0 0 60 14)(font "Arial" (font_size 8)))
		(text "result[7..0]" (rect 106 43 166 57)(font "Arial" (font_size 8)))
		(line (pt 160 56)(pt 96 56)(line_width 3))
	)
	(drawing
		(text "A" (rect 66 34 75 48)(font "Arial" (font_size 8)))
		(text "B" (rect 66 66 74 80)(font "Arial" (font_size 8)))
		(text "A+B" (rect 73 50 97 64)(font "Arial" (font_size 8)))
		(line (pt 64 32)(pt 96 40)(line_width 1))
		(line (pt 96 40)(pt 96 72)(line_width 1))
		(line (pt 96 72)(pt 64 80)(line_width 1))
		(line (pt 64 80)(pt 64 32)(line_width 1))
		(line (pt 64 50)(pt 70 56)(line_width 1))
		(line (pt 70 56)(pt 64 62)(line_width 1))
	)
)
(connector
	(pt 496 176)
	(pt 496 256)
	(bus)
)
(connector
	(pt 496 176)
	(pt 264 176)
	(bus)
)
(connector
	(pt 264 240)
	(pt 296 240)
	(bus)
)
(connector
	(pt 264 240)
	(pt 264 176)
	(bus)
)
(connector
	(pt 296 272)
	(pt 256 272)
	(bus)
)
(connector
	(pt 456 256)
	(pt 496 256)
	(bus)
)
(connector
	(pt 496 256)
	(pt 592 256)
	(bus)
)
(connector
	(pt 592 304)
	(pt 592 256)
	(bus)
)
(connector
	(pt 592 304)
	(pt 528 304)
	(bus)
)
(connector
	(pt 528 304)
	(pt 528 328)
	(bus)
)
(connector
	(pt 256 336)
	(pt 256 272)
	(bus)
)
(connector
	(pt 288 336)
	(pt 256 336)
	(bus)
)
(connector
	(pt 288 336)
	(pt 288 360)
	(bus)
)
(connector
	(pt 296 256)
	(pt 272 256)
)
(junction (pt 496 256))