ps2rs232.bdf

利用FPGA控制PS2

		"m1_tx_first_wait_clk_l"
		"11"
		""
	)
	(parameter
		"m1_tx_reset_timer"
		"12"
		""
	)
	(parameter
		"m1_tx_wait_clk_h"
		"2"
		""
	)
	(parameter
		"m1_tx_clk_h"
		"4"
		""
	)
	(parameter
		"m1_tx_clk_l"
		"5"
		""
	)
	(parameter
		"m1_tx_wait_keyboard_ack"
		"6"
		""
	)
	(parameter
		"m1_tx_done_recovery"
		"7"
		""
	)
	(parameter
		"m1_tx_error_no_keyboard_ack"
		"8"
		""
	)
	(parameter
		"m1_tx_rising_edge_marker"
		"9"
		""
	)
	(parameter
		"m2_rx_data_ready"
		"1"
		""
	)
	(parameter
		"m2_rx_data_ready_ack"
		"0"
		""
	)
	(drawing
		(rectangle (rect 16 16 232 208)(line_width 1))
	)
	(annotation_block (parameter)(rect 824 -600 1016 -272))
)
(symbol
	(rect 352 312 536 440)
	(text "uart_if" (rect 5 0 36 12)(font "Arial" ))
	(text "inst3" (rect 8 112 31 124)(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 "rst_n" (rect 0 0 24 12)(font "Arial" ))
		(text "rst_n" (rect 21 43 45 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
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		(text "data_in[7..0]" (rect 21 75 82 87)(font "Arial" ))
		(line (pt 0 80)(pt 16 80)(line_width 3))
	)
	(port
		(pt 184 32)
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		(text "txd" (rect 148 27 163 39)(font "Arial" ))
		(line (pt 184 32)(pt 168 32)(line_width 1))
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(symbol
	(rect 136 -120 232 -24)
	(text "div_256" (rect 5 0 43 12)(font "Arial" ))
	(text "inst4" (rect 8 80 31 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "mclk" (rect 0 0 23 12)(font "Arial" ))
		(text "mclk" (rect 21 27 44 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
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		(input)
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		(text "reset" (rect 21 43 45 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(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))
	)
)
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(junction (pt -104 -72))
(junction (pt 296 360))
(junction (pt 616 96))
(junction (pt 280 344))