key_prog.hier_info

简单易懂的4*4键盘扫描及显示程序。对编写其他形式的键盘扫描程序有一定的指导意义.

|key_prog
key_in[0] <= key_scan:inst2.pin[0]
key_in[1] <= key_scan:inst2.pin[1]
key_in[2] <= key_scan:inst2.pin[2]
key_in[3] <= key_scan:inst2.pin[3]
clk => key_scan:inst2.clk
clk => display:inst.clk
clk => key_out:inst4.clk
soeplay[0] <= display:inst.q[0]
soeplay[1] <= display:inst.q[1]
soeplay[2] <= display:inst.q[2]
soeplay[3] <= display:inst.q[3]
soeplay[4] <= display:inst.q[4]
soeplay[5] <= display:inst.q[5]
soeplay[6] <= display:inst.q[6]
key_out[0] => key_out:inst4.scan_out[0]
key_out[1] => key_out:inst4.scan_out[1]
key_out[2] => key_out:inst4.scan_out[2]
key_out[3] => key_out:inst4.scan_out[3]


|key_prog|key_scan:inst2
clk => temp[2].CLK
clk => temp[1].CLK
clk => temp[0].CLK
clk => temp[3].CLK
pin[0] <= temp[0].DB_MAX_OUTPUT_PORT_TYPE
pin[1] <= temp[1].DB_MAX_OUTPUT_PORT_TYPE
pin[2] <= temp[2].DB_MAX_OUTPUT_PORT_TYPE
pin[3] <= temp[3].DB_MAX_OUTPUT_PORT_TYPE


|key_prog|display:inst
clk => q[5]~reg0.CLK
clk => q[4]~reg0.CLK
clk => q[3]~reg0.CLK
clk => q[2]~reg0.CLK
clk => q[1]~reg0.CLK
clk => q[0]~reg0.CLK
clk => q[6]~reg0.CLK
data[0] => Mux~0.IN19
data[0] => Mux~1.IN19
data[0] => Mux~2.IN19
data[0] => Mux~3.IN19
data[0] => Mux~4.IN19
data[0] => Mux~5.IN19
data[0] => Mux~6.IN19
data[1] => Mux~0.IN18
data[1] => Mux~1.IN18
data[1] => Mux~2.IN18
data[1] => Mux~3.IN18
data[1] => Mux~4.IN18
data[1] => Mux~5.IN18
data[1] => Mux~6.IN18
data[2] => Mux~0.IN17
data[2] => Mux~1.IN17
data[2] => Mux~2.IN17
data[2] => Mux~3.IN17
data[2] => Mux~4.IN17
data[2] => Mux~5.IN17
data[2] => Mux~6.IN17
data[3] => Mux~0.IN16
data[3] => Mux~1.IN16
data[3] => Mux~2.IN16
data[3] => Mux~3.IN16
data[3] => Mux~4.IN16
data[3] => Mux~5.IN16
data[3] => Mux~6.IN16
q[0] <= q[0]~reg0.DB_MAX_OUTPUT_PORT_TYPE
q[1] <= q[1]~reg0.DB_MAX_OUTPUT_PORT_TYPE
q[2] <= q[2]~reg0.DB_MAX_OUTPUT_PORT_TYPE
q[3] <= q[3]~reg0.DB_MAX_OUTPUT_PORT_TYPE
q[4] <= q[4]~reg0.DB_MAX_OUTPUT_PORT_TYPE
q[5] <= q[5]~reg0.DB_MAX_OUTPUT_PORT_TYPE
q[6] <= q[6]~reg0.DB_MAX_OUTPUT_PORT_TYPE


|key_prog|key_out:inst4
clk => ~NO_FANOUT~
scan_out[0] => ~NO_FANOUT~
scan_out[1] => ~NO_FANOUT~
scan_out[2] => ~NO_FANOUT~
scan_out[3] => ~NO_FANOUT~
q[0] <= comb~0.DB_MAX_OUTPUT_PORT_TYPE
q[1] <= comb~1.DB_MAX_OUTPUT_PORT_TYPE
q[2] <= comb~2.DB_MAX_OUTPUT_PORT_TYPE
q[3] <= comb~3.DB_MAX_OUTPUT_PORT_TYPE