dds2ch.bsf

一种基于LUT的预失真方法。其中的一部分

/*
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 16 16 368 144)
	(text "dds2ch" (rect 5 0 40 12)(font "Arial" ))
	(text "inst" (rect 8 112 25 124)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "FREQWORD[FREQ_BITS-1..0]" (rect 0 0 155 12)(font "Arial" ))
		(text "FREQWORD[FREQ_BITS-1..0]" (rect 21 27 176 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 3))
	)
	(port
		(pt 0 48)
		(input)
		(text "FREQEN" (rect 0 0 46 12)(font "Arial" ))
		(text "FREQEN" (rect 21 43 67 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "CLK" (rect 0 0 21 12)(font "Arial" ))
		(text "CLK" (rect 21 59 42 71)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 0 80)
		(input)
		(text "RESET" (rect 0 0 35 12)(font "Arial" ))
		(text "RESET" (rect 21 75 56 87)(font "Arial" ))
		(line (pt 0 80)(pt 16 80)(line_width 1))
	)
	(port
		(pt 352 32)
		(output)
		(text "OCLK" (rect 0 0 29 12)(font "Arial" ))
		(text "OCLK" (rect 302 27 331 39)(font "Arial" ))
		(line (pt 352 32)(pt 336 32)(line_width 1))
	)
	(port
		(pt 352 48)
		(output)
		(text "DSTA" (rect 0 0 28 12)(font "Arial" ))
		(text "DSTA" (rect 303 43 331 55)(font "Arial" ))
		(line (pt 352 48)(pt 336 48)(line_width 1))
	)
	(port
		(pt 352 64)
		(output)
		(text "OUTPUTS[DATA_BITS-1..0]" (rect 0 0 138 12)(font "Arial" ))
		(text "OUTPUTS[DATA_BITS-1..0]" (rect 193 59 331 71)(font "Arial" ))
		(line (pt 352 64)(pt 336 64)(line_width 3))
	)
	(port
		(pt 352 80)
		(output)
		(text "OUTPUTC[DATA_BITS-1..0]" (rect 0 0 139 12)(font "Arial" ))
		(text "OUTPUTC[DATA_BITS-1..0]" (rect 192 75 331 87)(font "Arial" ))
		(line (pt 352 80)(pt 336 80)(line_width 3))
	)
	(parameter
		"FREQ_BITS"
		"32"
		""
	)
	(parameter
		"DATA_BITS"
		"14"
		""
	)
	(parameter
		"U_BITS"
		"17"
		""
	)
	(parameter
		"ADDR_M"
		"7"
		""
	)
	(parameter
		"ADDR_N"
		"7"
		""
	)
	(parameter
		"WAVE_BITS"
		"13"
		""
	)
	(parameter
		"COEFF_BITS"
		"8"
		""
	)
	(parameter
		"INTER_BITS"
		"7"
		""
	)
	(drawing
		(rectangle (rect 16 16 336 112)(line_width 1))
	)
	(annotation_block (parameter)(rect 368 -64 468 16))
)