load_control.bdf

一个PWM参数器

/*
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 "graphic" (version "1.3"))
(pin
	(input)
	(rect 0 112 168 128)
	(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
	(input)
	(rect 0 144 168 160)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "addr" (rect 5 0 26 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 0 160 168 176)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "wrData[11..0]" (rect 5 0 71 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 0 176 168 192)
	(text "INPUT" (rect 133 0 161 10)(font "Arial" (font_size 6)))
	(text "wr_period[11..0]" (rect 5 0 82 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 400 128 576 144)
	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
	(text "pwm_out" (rect 90 0 133 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))
	)
)
(pin
	(output)
	(rect 464 64 640 80)
	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
	(text "y_en" (rect 90 0 114 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 200 88 376 216)
	(text "new_pwm" (rect 5 0 52 12)(font "Arial" ))
	(text "inst" (rect 8 112 25 124)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clk" (rect 0 0 14 12)(font "Arial" ))
		(text "clk" (rect 21 27 35 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "wr_en" (rect 0 0 28 12)(font "Arial" ))
		(text "wr_en" (rect 21 43 49 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "addr" (rect 0 0 21 12)(font "Arial" ))
		(text "addr" (rect 21 59 42 71)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 0 80)
		(input)
		(text "wrData[11..0]" (rect 0 0 66 12)(font "Arial" ))
		(text "wrData[11..0]" (rect 21 75 87 87)(font "Arial" ))
		(line (pt 0 80)(pt 16 80)(line_width 3))
	)
	(port
		(pt 0 96)
		(input)
		(text "wr_period[11..0]" (rect 0 0 77 12)(font "Arial" ))
		(text "wr_period[11..0]" (rect 21 91 98 103)(font "Arial" ))
		(line (pt 0 96)(pt 16 96)(line_width 3))
	)
	(port
		(pt 176 32)
		(output)
		(text "y_en" (rect 0 0 24 12)(font "Arial" ))
		(text "y_en" (rect 131 27 155 39)(font "Arial" ))
		(line (pt 176 32)(pt 160 32)(line_width 1))
	)
	(port
		(pt 176 48)
		(output)
		(text "PwmOut" (rect 0 0 41 12)(font "Arial" ))
		(text "PwmOut" (rect 114 43 155 55)(font "Arial" ))
		(line (pt 176 48)(pt 160 48)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 160 112)(line_width 1))
	)
)
(connector
	(pt 200 152)
	(pt 168 152)
)
(connector
	(pt 200 168)
	(pt 168 168)
	(bus)
)
(connector
	(pt 168 120)
	(pt 200 120)
)
(connector
	(pt 184 72)
	(pt 184 136)
)
(connector
	(pt 200 136)
	(pt 184 136)
)
(connector
	(pt 168 184)
	(pt 200 184)
	(bus)
)
(connector
	(pt 376 136)
	(pt 400 136)
)
(connector
	(pt 376 120)
	(pt 400 120)
)
(connector
	(pt 400 72)
	(pt 400 120)
)
(connector
	(pt 184 72)
	(pt 400 72)
)
(connector
	(pt 400 72)
	(pt 464 72)
)
(junction (pt 400 72))
(text "wr_en只有一个时钟周期的低电平，在这一个周期内写入信的占空比值" (rect 56 256 490 270)(font "Arial" (font_size 8)))
(text "占空比的写入值初步定为100（H），即256个时钟周期" (rect 56 240 389 254)(font "Arial" (font_size 8)))