top.bdf

基于FPGA有限状态机的数据采集系统

		(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 "rst" (rect 0 0 12 12)(font "Arial" ))
		(text "rst" (rect 21 43 33 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "full" (rect 0 0 15 12)(font "Arial" ))
		(text "full" (rect 21 59 36 71)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 0 80)
		(input)
		(text "change" (rect 0 0 35 12)(font "Arial" ))
		(text "change" (rect 21 75 56 87)(font "Arial" ))
		(line (pt 0 80)(pt 16 80)(line_width 1))
	)
	(port
		(pt 0 96)
		(input)
		(text "datain[7..0]" (rect 0 0 55 12)(font "Arial" ))
		(text "datain[7..0]" (rect 21 91 76 103)(font "Arial" ))
		(line (pt 0 96)(pt 16 96)(line_width 3))
	)
	(port
		(pt 176 32)
		(output)
		(text "flag" (rect 0 0 18 12)(font "Arial" ))
		(text "flag" (rect 137 27 155 39)(font "Arial" ))
		(line (pt 176 32)(pt 160 32)(line_width 1))
	)
	(port
		(pt 176 48)
		(output)
		(text "ready" (rect 0 0 28 12)(font "Arial" ))
		(text "ready" (rect 127 43 155 55)(font "Arial" ))
		(line (pt 176 48)(pt 160 48)(line_width 1))
	)
	(port
		(pt 176 64)
		(output)
		(text "adclk" (rect 0 0 25 12)(font "Arial" ))
		(text "adclk" (rect 130 59 155 71)(font "Arial" ))
		(line (pt 176 64)(pt 160 64)(line_width 1))
	)
	(port
		(pt 176 80)
		(output)
		(text "wr_ram" (rect 0 0 35 12)(font "Arial" ))
		(text "wr_ram" (rect 120 75 155 87)(font "Arial" ))
		(line (pt 176 80)(pt 160 80)(line_width 1))
	)
	(port
		(pt 176 96)
		(output)
		(text "rd_ram" (rect 0 0 34 12)(font "Arial" ))
		(text "rd_ram" (rect 121 91 155 103)(font "Arial" ))
		(line (pt 176 96)(pt 160 96)(line_width 1))
	)
	(port
		(pt 176 112)
		(output)
		(text "st[1..0]" (rect 0 0 35 12)(font "Arial" ))
		(text "st[1..0]" (rect 120 107 155 119)(font "Arial" ))
		(line (pt 176 112)(pt 160 112)(line_width 3))
	)
	(port
		(pt 176 144)
		(output)
		(text "dataout[7..0]" (rect 0 0 62 12)(font "Arial" ))
		(text "dataout[7..0]" (rect 93 139 155 151)(font "Arial" ))
		(line (pt 176 144)(pt 160 144)(line_width 3))
	)
	(port
		(pt 176 160)
		(output)
		(text "clk_s" (rect 0 0 25 12)(font "Arial" ))
		(text "clk_s" (rect 130 155 155 167)(font "Arial" ))
		(line (pt 176 160)(pt 160 160)(line_width 1))
	)
	(port
		(pt 176 128)
		(bidir)
		(text "dataram[7..0]" (rect 0 0 66 12)(font "Arial" ))
		(text "dataram[7..0]" (rect 89 123 155 135)(font "Arial" ))
		(line (pt 176 128)(pt 160 128)(line_width 3))
	)
	(drawing
		(rectangle (rect 16 16 160 176)(line_width 1))
	)
)
(symbol
	(rect 464 448 560 544)
	(text "clk_select" (rect 5 0 54 12)(font "Arial" ))
	(text "inst2" (rect 8 80 31 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clk_sys" (rect 0 0 38 12)(font "Arial" ))
		(text "clk_sys" (rect 21 27 59 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "clk_cpu" (rect 0 0 37 12)(font "Arial" ))
		(text "clk_cpu" (rect 21 43 58 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 64)
		(input)
		(text "clk_s" (rect 0 0 25 12)(font "Arial" ))
		(text "clk_s" (rect 21 59 46 71)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 96 32)
		(output)
		(text "clk" (rect 0 0 14 12)(font "Arial" ))
		(text "clk" (rect 61 27 75 39)(font "Arial" ))
		(line (pt 96 32)(pt 80 32)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 80 80)(line_width 1))
	)
)
(symbol
	(rect 304 360 400 456)
	(text "clk_div" (rect 5 0 40 12)(font "Arial" ))
	(text "inst3" (rect 8 80 31 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "clkin" (rect 0 0 22 12)(font "Arial" ))
		(text "clkin" (rect 21 27 43 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 96 32)
		(output)
		(text "clk" (rect 0 0 14 12)(font "Arial" ))
		(text "clk" (rect 61 27 75 39)(font "Arial" ))
		(line (pt 96 32)(pt 80 32)(line_width 1))
	)
	(parameter
		"n"
		"9"
		""
	)
	(drawing
		(rectangle (rect 16 16 80 80)(line_width 1))
	)
	(annotation_block (parameter)(rect 400 328 504 360))
)
(connector
	(pt 808 560)
	(pt 856 560)
)
(connector
	(pt 896 496)
	(pt 856 496)
)
(connector
	(pt 856 496)
	(pt 856 560)
)
(connector
	(pt 632 560)
	(pt 592 560)
)
(connector
	(text "fu" (rect 560 576 570 588)(font "Arial" ))
	(pt 632 592)
	(pt 552 592)
)
(connector
	(pt 632 576)
	(pt 576 576)
)
(connector
	(pt 632 624)
	(pt 576 624)
	(bus)
)
(connector
	(pt 808 576)
	(pt 1112 576)
)
(connector
	(pt 1024 496)
	(pt 1104 496)
	(bus)
)
(connector
	(text "fu" (rect 1078 464 1088 476)(font "Arial" ))
	(pt 1024 480)
	(pt 1120 480)
)
(connector
	(pt 808 688)
	(pt 832 688)
)
(connector
	(pt 808 592)
	(pt 1112 592)
)
(connector
	(pt 808 608)
	(pt 1112 608)
)
(connector
	(pt 808 624)
	(pt 1112 624)
)
(connector
	(pt 808 640)
	(pt 1112 640)
	(bus)
)
(connector
	(pt 808 656)
	(pt 1112 656)
	(bus)
)
(connector
	(pt 808 672)
	(pt 1112 672)
	(bus)
)
(connector
	(pt 576 608)
	(pt 632 608)
)
(connector
	(pt 832 688)
	(pt 832 728)
)
(connector
	(pt 400 512)
	(pt 464 512)
)
(connector
	(pt 352 496)
	(pt 464 496)
)
(connector
	(pt 464 480)
	(pt 440 480)
)
(connector
	(pt 400 392)
	(pt 440 392)
)
(connector
	(pt 440 480)
	(pt 440 392)
)
(connector
	(pt 400 728)
	(pt 832 728)
)
(connector
	(pt 400 512)
	(pt 400 728)
)
(connector
	(pt 560 480)
	(pt 592 480)
)
(connector
	(pt 592 480)
	(pt 896 480)
)
(connector
	(pt 264 392)
	(pt 304 392)
)
(connector
	(pt 664 392)
	(pt 592 392)
)
(connector
	(pt 592 392)
	(pt 592 480)
)
(connector
	(pt 592 480)
	(pt 592 560)
)
(junction (pt 592 480))