fft_data_buf.bsf

基于VHDL语言的一个FFT快速傅里叶变换程序采用4蝶形算法

/*
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) 1991-2007 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 "symbol" (version "1.1"))
(symbol
	(rect 0 0 256 144)
	(text "fft_data_buf" (rect 85 2 186 21)(font "Arial" (font_size 10)))
	(text "inst" (rect 8 125 31 140)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "data[15..0]" (rect 0 0 73 16)(font "Arial" (font_size 8)))
		(text "data[15..0]" (rect 4 16 66 32)(font "Arial" (font_size 8)))
		(line (pt 0 32)(pt 112 32)(line_width 3))
	)
	(port
		(pt 0 48)
		(input)
		(text "wraddress[7..0]" (rect 0 0 105 16)(font "Arial" (font_size 8)))
		(text "wraddress[7..0]" (rect 4 32 93 48)(font "Arial" (font_size 8)))
		(line (pt 0 48)(pt 112 48)(line_width 3))
	)
	(port
		(pt 0 64)
		(input)
		(text "wren" (rect 0 0 31 16)(font "Arial" (font_size 8)))
		(text "wren" (rect 4 48 31 64)(font "Arial" (font_size 8)))
		(line (pt 0 64)(pt 112 64)(line_width 1))
	)
	(port
		(pt 0 88)
		(input)
		(text "rdaddress[7..0]" (rect 0 0 102 16)(font "Arial" (font_size 8)))
		(text "rdaddress[7..0]" (rect 4 72 91 88)(font "Arial" (font_size 8)))
		(line (pt 0 88)(pt 112 88)(line_width 3))
	)
	(port
		(pt 0 112)
		(input)
		(text "clock" (rect 0 0 36 16)(font "Arial" (font_size 8)))
		(text "clock" (rect 4 96 35 112)(font "Arial" (font_size 8)))
		(line (pt 0 112)(pt 104 112)(line_width 1))
	)
	(port
		(pt 256 88)
		(output)
		(text "q[15..0]" (rect 0 0 51 16)(font "Arial" (font_size 8)))
		(text "q[15..0]" (rect 209 72 253 88)(font "Arial" (font_size 8)))
		(line (pt 256 88)(pt 168 88)(line_width 3))
	)
	(drawing
		(text "256 Word(s)" (rect 133 33 147 94)(font "Arial" )(vertical))
		(text "RAM" (rect 149 49 163 72)(font "Arial" )(vertical))
		(text "Block Type: AUTO" (rect 41 122 129 136)(font "Arial" ))
		(line (pt 128 24)(pt 168 24)(line_width 1))
		(line (pt 168 24)(pt 168 96)(line_width 1))
		(line (pt 168 96)(pt 128 96)(line_width 1))
		(line (pt 128 96)(pt 128 24)(line_width 1))
		(line (pt 112 27)(pt 120 27)(line_width 1))
		(line (pt 120 27)(pt 120 39)(line_width 1))
		(line (pt 120 39)(pt 112 39)(line_width 1))
		(line (pt 112 39)(pt 112 27)(line_width 1))
		(line (pt 112 34)(pt 114 36)(line_width 1))
		(line (pt 114 36)(pt 112 38)(line_width 1))
		(line (pt 104 36)(pt 112 36)(line_width 1))
		(line (pt 120 32)(pt 128 32)(line_width 3))
		(line (pt 112 43)(pt 120 43)(line_width 1))
		(line (pt 120 43)(pt 120 55)(line_width 1))
		(line (pt 120 55)(pt 112 55)(line_width 1))
		(line (pt 112 55)(pt 112 43)(line_width 1))
		(line (pt 112 50)(pt 114 52)(line_width 1))
		(line (pt 114 52)(pt 112 54)(line_width 1))
		(line (pt 104 52)(pt 112 52)(line_width 1))
		(line (pt 120 48)(pt 128 48)(line_width 3))
		(line (pt 112 59)(pt 120 59)(line_width 1))
		(line (pt 120 59)(pt 120 71)(line_width 1))
		(line (pt 120 71)(pt 112 71)(line_width 1))
		(line (pt 112 71)(pt 112 59)(line_width 1))
		(line (pt 112 66)(pt 114 68)(line_width 1))
		(line (pt 114 68)(pt 112 70)(line_width 1))
		(line (pt 104 68)(pt 112 68)(line_width 1))
		(line (pt 120 64)(pt 128 64)(line_width 1))
		(line (pt 112 83)(pt 120 83)(line_width 1))
		(line (pt 120 83)(pt 120 95)(line_width 1))
		(line (pt 120 95)(pt 112 95)(line_width 1))
		(line (pt 112 95)(pt 112 83)(line_width 1))
		(line (pt 112 90)(pt 114 92)(line_width 1))
		(line (pt 114 92)(pt 112 94)(line_width 1))
		(line (pt 104 92)(pt 112 92)(line_width 1))
		(line (pt 120 88)(pt 128 88)(line_width 3))
		(line (pt 104 36)(pt 104 113)(line_width 1))
	)
)