ddsf.bdf

基于飓风1 fpga 和stc单片机的dds信号源 程序是自己些的 能用 最大频率是2M

/*
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.
*/
(header "graphic" (version "1.3"))
(symbol
	(rect 632 232 792 360)
	(text "dds" (rect 5 0 26 14)(font "Arial" (font_size 8)))
	(text "inst" (rect 8 112 25 124)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clock" (rect 0 0 29 14)(font "Arial" (font_size 8)))
		(text "clock" (rect 21 27 50 41)(font "Arial" (font_size 8)))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "mcuclk" (rect 0 0 38 14)(font "Arial" (font_size 8)))
		(text "mcuclk" (rect 21 43 59 57)(font "Arial" (font_size 8)))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "fre[7..0]" (rect 0 0 44 14)(font "Arial" (font_size 8)))
		(text "fre[7..0]" (rect 21 59 65 73)(font "Arial" (font_size 8)))
		(line (pt 0 64)(pt 16 64)(line_width 3))
	)
	(port
		(pt 0 80)
		(input)
		(text "mcuenable" (rect 0 0 61 14)(font "Arial" (font_size 8)))
		(text "mcuenable" (rect 21 75 82 89)(font "Arial" (font_size 8)))
		(line (pt 0 80)(pt 16 80)(line_width 1))
	)
	(port
		(pt 160 32)
		(output)
		(text "wr" (rect 0 0 16 14)(font "Arial" (font_size 8)))
		(text "wr" (rect 123 27 139 41)(font "Arial" (font_size 8)))
		(line (pt 160 32)(pt 144 32)(line_width 1))
	)
	(port
		(pt 160 48)
		(output)
		(text "dacba" (rect 0 0 35 14)(font "Arial" (font_size 8)))
		(text "dacba" (rect 104 43 139 57)(font "Arial" (font_size 8)))
		(line (pt 160 48)(pt 144 48)(line_width 1))
	)
	(port
		(pt 160 64)
		(output)
		(text "cs" (rect 0 0 14 14)(font "Arial" (font_size 8)))
		(text "cs" (rect 125 59 139 73)(font "Arial" (font_size 8)))
		(line (pt 160 64)(pt 144 64)(line_width 1))
	)
	(port
		(pt 160 80)
		(output)
		(text "da[7..0]" (rect 0 0 42 14)(font "Arial" (font_size 8)))
		(text "da[7..0]" (rect 97 75 139 89)(font "Arial" (font_size 8)))
		(line (pt 160 80)(pt 144 80)(line_width 3))
	)
	(drawing
		(rectangle (rect 16 16 144 112)(line_width 1))
	)
)