401 lines
18 KiB
XML
401 lines
18 KiB
XML
v {xschem version=2.9.9 file_version=1.2 }
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G {}
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K {}
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V {}
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S {}
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E {}
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L 4 110 -1580 190 -1580 {}
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L 4 110 -1480 190 -1480 {}
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L 4 110 -1380 190 -1380 {}
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L 4 100 -1470 100 -1390 {}
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L 4 200 -1470 200 -1390 {}
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L 4 100 -1570 100 -1490 {}
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L 4 200 -1570 200 -1490 {}
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B 12 3210 -2700 3930 -1400 {}
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T {
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0 1 2 3 4 5 6
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======================
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0000 X X X X X X
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0001 X X
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0010 X X X X X
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0011 X X X X X
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0100 X X X X
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0101 X X X X X
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0110 X X X X X X
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0111 X X X
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1000 X X X X X X X
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1001 X X X X X X
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-HEX (not implemented)-
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1010 X X X X X X
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1011 X X X X X
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1100 X X X X
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1101 X X X X X
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1110 X X X X X
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1111 X X X X
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} 40 -1340 0 0 0.4 0.4 {font=Monospace}
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T {0} 140 -1630 0 0 0.8 0.8 {}
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T {1} 90 -1550 0 1 0.8 0.8 {}
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T {2} 210 -1550 0 0 0.8 0.8 {}
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T {3} 140 -1530 0 0 0.8 0.8 {}
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T {6} 140 -1430 0 0 0.8 0.8 {}
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T {4} 90 -1450 0 1 0.8 0.8 {}
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T {5} 210 -1450 0 0 0.8 0.8 {}
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T {7 Segment Display driver
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and base-10 counter} 1540 -3130 0 0 2.5 2.5 {}
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T {Segment 0} 1190 -2880 0 0 1 1 { layer=4}
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T {Segment 1} 1190 -2400 0 0 1 1 { layer=4}
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T {Segment 2} 1190 -1920 0 0 1 1 { layer=4}
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T {Segment 3} 1190 -1520 0 0 1 1 { layer=4}
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T {Segment 4} 1190 -960 0 0 1 1 { layer=4}
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T {Segment 5} 1190 -560 0 0 1 1 { layer=4}
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T {Segment 6} 1190 -240 0 0 1 1 { layer=4}
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T {This example shows Xschem (very simple) simulation abilities
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Ctrl-Click to start simulation.
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Xschem will be only partially responsive during simulation.
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Will run for 40 iterations.
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If you need to stop:
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Simulation -> Forced stop tcl scripts} 1730 -750 0 0 1.5 1.5 {}
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T {Truth Table} 10 -1730 0 0 1.5 1.5 {layer=4}
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T {Cyan: Uninitialized or unknown (X)} 3210 -1190 0 0 1.5 1.5 {layer=1}
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T {Signal colors:} 3130 -1290 0 0 1.5 1.5 {}
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T {Blue: Logic level low (0)} 3210 -1090 0 0 1.5 1.5 {layer=12}
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T {Red: Logic level high (1)} 3210 -990 0 0 1.5 1.5 {layer=5}
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N 1920 -2060 1920 -1980 { lab=#net1}
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N 1800 -2060 1920 -2060 { lab=#net1}
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N 1800 -2080 1800 -2060 { lab=#net1}
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N 1920 -2240 1920 -2160 { lab=#net2}
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N 1800 -2240 1920 -2240 { lab=#net2}
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N 1800 -2260 1800 -2240 { lab=#net2}
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N 1920 -2420 1920 -2340 { lab=#net3}
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N 1800 -2420 1920 -2420 { lab=#net3}
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N 1800 -2440 1800 -2420 { lab=#net3}
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N 2640 -2460 2700 -2460 { lab=B[3]}
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N 2640 -2560 2640 -2460 { lab=B[3]}
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N 1730 -2560 2640 -2560 { lab=B[3]}
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N 1730 -2560 1730 -2520 { lab=B[3]}
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N 2640 -2280 2700 -2280 { lab=B[2]}
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N 2640 -2380 2640 -2280 { lab=B[2]}
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N 1730 -2380 2640 -2380 { lab=B[2]}
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N 1730 -2380 1730 -2340 { lab=B[2]}
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N 2640 -2100 2700 -2100 { lab=B[1]}
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N 2640 -2200 2640 -2100 { lab=B[1]}
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N 1730 -2200 2640 -2200 { lab=B[1]}
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N 1730 -2200 1730 -2160 { lab=B[1]}
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N 2640 -1920 2700 -1920 { lab=B[0]}
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N 2640 -2020 2640 -1920 { lab=B[0]}
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N 1730 -2020 2640 -2020 { lab=B[0]}
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N 1730 -2020 1730 -1980 { lab=B[0]}
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N 1590 -1990 1590 -1940 { lab=CLEAR_}
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N 1590 -1940 1800 -1940 { lab=CLEAR_}
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N 1670 -2120 1670 -1900 { lab=#net4}
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N 1670 -2120 1800 -2120 { lab=#net4}
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N 1670 -2300 1670 -2120 { lab=#net4}
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N 1670 -2300 1800 -2300 { lab=#net4}
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N 1670 -2480 1670 -2300 { lab=#net4}
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N 1670 -2480 1800 -2480 { lab=#net4}
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N 1670 -1900 1800 -1900 { lab=#net4}
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N 1920 -2520 1940 -2520 { lab=#net5}
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N 1730 -1980 1800 -1980 { lab=B[0]}
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N 1730 -2160 1800 -2160 { lab=B[1]}
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N 1730 -2340 1800 -2340 { lab=B[2]}
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N 1730 -2520 1800 -2520 { lab=B[3]}
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N 1730 -1830 1900 -1830 { lab=BNEXT[3]}
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N 1830 -1790 1900 -1790 { lab=#net6}
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N 1730 -1790 1750 -1790 { lab=BNEXT[2]}
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N 1730 -1750 1900 -1750 { lab=BNEXT[1]}
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N 1730 -1710 1750 -1710 { lab=BNEXT[0]}
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N 1830 -1710 1900 -1710 { lab=#net7}
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N 2620 -2460 2640 -2460 { lab=B[3]}
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N 2620 -2280 2640 -2280 { lab=B[2]}
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N 2620 -2100 2640 -2100 { lab=B[1]}
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N 2620 -1920 2640 -1920 { lab=B[0]}
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N 520 -3140 520 -10 { lab=B[3]}
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N 520 -3140 550 -3140 { lab=B[3]}
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N 600 -3140 630 -3140 { lab=B[2]}
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N 680 -3140 710 -3140 { lab=B[1]}
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N 760 -3140 790 -3140 { lab=B[0]}
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N 550 -640 880 -640 { lab=#net8}
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N 630 -600 880 -600 { lab=#net9}
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N 680 -560 880 -560 { lab=B[1]}
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N 790 -520 880 -520 { lab=#net10}
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N 1000 -580 1230 -580 { lab=S[5]}
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N 520 -3160 520 -3140 { lab=B[3]}
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N 600 -3160 600 -3140 { lab=B[2]}
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N 680 -3160 680 -3140 { lab=B[1]}
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N 760 -3160 760 -3140 { lab=B[0]}
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N 550 -3040 880 -3040 { lab=#net8}
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N 630 -3000 880 -3000 { lab=#net9}
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N 710 -2960 880 -2960 { lab=#net11}
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N 760 -2920 880 -2920 { lab=B[0]}
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N 550 -2880 880 -2880 { lab=#net8}
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N 600 -2840 880 -2840 { lab=B[2]}
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N 710 -2800 880 -2800 { lab=#net11}
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N 790 -2760 880 -2760 { lab=#net10}
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N 1020 -2920 1050 -2920 { lab=#net12}
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N 1020 -2980 1020 -2920 { lab=#net12}
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N 1000 -2980 1020 -2980 { lab=#net12}
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N 1020 -2880 1050 -2880 { lab=#net13}
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N 1020 -2880 1020 -2820 { lab=#net13}
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N 1000 -2820 1020 -2820 { lab=#net13}
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N 1170 -2900 1230 -2900 { lab=S[0]}
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N 550 -2560 880 -2560 { lab=#net8}
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N 630 -2520 880 -2520 { lab=#net9}
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N 680 -2480 880 -2480 { lab=B[1]}
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N 790 -2440 880 -2440 { lab=#net10}
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N 550 -2400 880 -2400 { lab=#net8}
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N 630 -2360 880 -2360 { lab=#net9}
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N 680 -2320 880 -2320 { lab=B[1]}
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N 760 -2280 880 -2280 { lab=B[0]}
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N 550 -2240 880 -2240 { lab=#net8}
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N 600 -2200 880 -2200 { lab=B[2]}
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N 680 -2160 880 -2160 { lab=B[1]}
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N 760 -2120 880 -2120 { lab=B[0]}
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N 550 -2720 880 -2720 { lab=#net8}
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N 630 -2680 880 -2680 { lab=#net9}
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N 710 -2640 880 -2640 { lab=#net11}
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N 760 -2600 880 -2600 { lab=B[0]}
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N 1000 -2660 1050 -2660 { lab=#net14}
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N 1000 -2500 1020 -2500 { lab=#net15}
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N 1000 -2340 1020 -2340 { lab=#net16}
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N 1000 -2180 1050 -2180 { lab=#net17}
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N 1050 -2660 1050 -2480 { lab=#net14}
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N 1020 -2500 1020 -2440 { lab=#net15}
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N 1020 -2440 1050 -2440 { lab=#net15}
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N 1020 -2400 1050 -2400 { lab=#net16}
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N 1020 -2400 1020 -2340 { lab=#net16}
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N 1050 -2360 1050 -2180 { lab=#net17}
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N 1170 -2420 1230 -2420 { lab=S[1]}
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N 550 -2080 880 -2080 { lab=#net8}
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N 600 -2040 880 -2040 { lab=B[2]}
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N 710 -2000 880 -2000 { lab=#net11}
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N 760 -1960 880 -1960 { lab=B[0]}
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N 550 -1920 880 -1920 { lab=#net8}
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N 600 -1880 880 -1880 { lab=B[2]}
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N 680 -1840 880 -1840 { lab=B[1]}
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N 790 -1800 880 -1800 { lab=#net10}
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N 1020 -1960 1050 -1960 { lab=#net18}
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N 1020 -2020 1020 -1960 { lab=#net18}
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N 1000 -2020 1020 -2020 { lab=#net18}
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N 1020 -1920 1050 -1920 { lab=#net19}
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N 1020 -1920 1020 -1860 { lab=#net19}
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N 1000 -1860 1020 -1860 { lab=#net19}
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N 1170 -1940 1230 -1940 { lab=S[2]}
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N 550 -1760 880 -1760 { lab=#net8}
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N 630 -1720 880 -1720 { lab=#net9}
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N 710 -1680 880 -1680 { lab=#net11}
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N 790 -1640 880 -1640 { lab=#net10}
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N 1000 -1700 1050 -1700 { lab=#net20}
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N 550 -1600 880 -1600 { lab=#net8}
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N 630 -1560 880 -1560 { lab=#net9}
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N 710 -1520 880 -1520 { lab=#net11}
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N 1000 -1540 1050 -1540 { lab=#net21}
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N 550 -1440 880 -1440 { lab=#net8}
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N 600 -1400 880 -1400 { lab=B[2]}
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N 680 -1360 880 -1360 { lab=B[1]}
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N 760 -1320 880 -1320 { lab=B[0]}
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N 1000 -1380 1050 -1380 { lab=#net22}
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N 1050 -1700 1050 -1580 { lab=#net20}
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N 1050 -1500 1050 -1380 { lab=#net22}
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N 550 -3060 550 -10 { lab=#net8}
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N 630 -3060 630 -10 { lab=#net9}
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N 710 -3060 710 -10 { lab=#net11}
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N 760 -3140 760 -10 { lab=B[0]}
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N 600 -3140 600 -10 { lab=B[2]}
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N 790 -3060 790 -10 { lab=#net10}
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N 680 -3140 680 -10 { lab=B[1]}
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N 760 -1480 880 -1480 { lab=B[0]}
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N 1170 -1540 1230 -1540 { lab=S[3]}
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N 550 -1280 880 -1280 { lab=#net8}
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N 630 -1240 880 -1240 { lab=#net9}
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N 710 -1200 880 -1200 { lab=#net11}
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N 790 -1160 880 -1160 { lab=#net10}
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N 1000 -1220 1050 -1220 { lab=#net23}
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N 550 -1120 880 -1120 { lab=#net8}
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N 630 -1080 880 -1080 { lab=#net9}
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N 680 -1040 880 -1040 { lab=B[1]}
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N 790 -1000 880 -1000 { lab=#net10}
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N 1000 -1060 1020 -1060 { lab=#net24}
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N 550 -960 880 -960 { lab=#net8}
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N 600 -920 880 -920 { lab=B[2]}
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N 680 -880 880 -880 { lab=B[1]}
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N 790 -840 880 -840 { lab=#net10}
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N 1000 -900 1020 -900 { lab=#net25}
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N 520 -800 880 -800 { lab=B[3]}
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N 630 -760 880 -760 { lab=#net9}
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N 710 -720 880 -720 { lab=#net11}
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N 790 -680 880 -680 { lab=#net10}
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N 1000 -740 1050 -740 { lab=#net26}
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N 1050 -920 1050 -740 { lab=#net26}
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N 1050 -1220 1050 -1040 { lab=#net23}
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N 1020 -1000 1050 -1000 { lab=#net24}
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N 1020 -1060 1020 -1000 { lab=#net24}
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N 1020 -960 1050 -960 { lab=#net25}
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N 1020 -960 1020 -900 { lab=#net25}
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N 1170 -980 1230 -980 { lab=S[4]}
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N 550 -480 880 -480 { lab=#net8}
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N 630 -440 880 -440 { lab=#net9}
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N 710 -400 880 -400 { lab=#net11}
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N 760 -360 880 -360 { lab=B[0]}
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N 1000 -420 1050 -420 { lab=#net27}
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N 550 -320 880 -320 { lab=#net8}
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N 600 -280 880 -280 { lab=B[2]}
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N 710 -240 880 -240 { lab=#net11}
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N 1000 -260 1050 -260 { lab=#net28}
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N 550 -160 880 -160 { lab=#net8}
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N 600 -120 880 -120 { lab=B[2]}
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N 680 -80 880 -80 { lab=B[1]}
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N 760 -40 880 -40 { lab=B[0]}
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N 1000 -100 1050 -100 { lab=#net29}
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N 1050 -420 1050 -300 { lab=#net27}
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N 1050 -220 1050 -100 { lab=#net29}
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N 790 -200 880 -200 { lab=#net10}
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N 1170 -260 1230 -260 { lab=S[6]}
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N 2020 -1770 2060 -1770 { lab=#net30}
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N 2340 -2440 2440 -2440 { lab=#net31}
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N 2070 -2460 2220 -2460 { lab=BNEXT[3]}
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N 2070 -2460 2070 -2440 { lab=BNEXT[3]}
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N 1920 -2440 2070 -2440 { lab=BNEXT[3]}
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N 2340 -2260 2440 -2260 { lab=#net32}
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N 2070 -2280 2220 -2280 { lab=BNEXT[2]}
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N 2070 -2280 2070 -2260 { lab=BNEXT[2]}
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N 1920 -2260 2070 -2260 { lab=BNEXT[2]}
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N 2340 -2080 2440 -2080 { lab=#net33}
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N 2070 -2100 2220 -2100 { lab=BNEXT[1]}
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N 2070 -2100 2070 -2080 { lab=BNEXT[1]}
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N 1920 -2080 2070 -2080 { lab=BNEXT[1]}
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N 2340 -1900 2440 -1900 { lab=#net34}
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N 2070 -1920 2220 -1920 { lab=BNEXT[0]}
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N 2070 -1920 2070 -1900 { lab=BNEXT[0]}
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N 1920 -1900 2070 -1900 { lab=BNEXT[0]}
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N 2060 -1770 2160 -1770 { lab=#net30}
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N 2160 -2420 2160 -1770 { lab=#net30}
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N 2160 -2420 2220 -2420 { lab=#net30}
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N 2160 -2240 2220 -2240 { lab=#net30}
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N 2160 -2060 2220 -2060 { lab=#net30}
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N 2160 -1880 2220 -1880 { lab=#net30}
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N 1760 -1010 1890 -1010 { lab=CLK}
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N 1760 -1180 1890 -1180 { lab=CLEAR_}
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C {title.sym} 1350 -50 0 0 {name=l38 author="Stefan Schippers"}
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C {fa_1.sym} 1860 -2480 0 0 {name=x28 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {fa_1.sym} 1860 -2300 0 0 {name=x33 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {fa_1.sym} 1860 -2120 0 0 {name=x34 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {fa_1.sym} 1860 -1940 0 0 {name=x35 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {dfrtp_1.sym} 2530 -2440 0 0 {name=x36 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 2440 -2460 0 0 {name=l32 sig_type=std_logic lab=CLK}
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C {lab_pin.sym} 2440 -2420 0 0 {name=l33 sig_type=std_logic lab=CLEAR_}
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C {lab_pin.sym} 2700 -2460 0 1 {name=l34 sig_type=std_logic lab=B[3]}
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C {dfrtp_1.sym} 2530 -2260 0 0 {name=x37 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 2440 -2280 0 0 {name=l35 sig_type=std_logic lab=CLK}
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C {lab_pin.sym} 2440 -2240 0 0 {name=l36 sig_type=std_logic lab=CLEAR_}
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C {lab_pin.sym} 2700 -2280 0 1 {name=l37 sig_type=std_logic lab=B[2]}
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C {dfrtp_1.sym} 2530 -2080 0 0 {name=x53 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 2440 -2100 0 0 {name=l39 sig_type=std_logic lab=CLK}
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C {lab_pin.sym} 2440 -2060 0 0 {name=l40 sig_type=std_logic lab=CLEAR_}
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C {lab_pin.sym} 2700 -2100 0 1 {name=l41 sig_type=std_logic lab=B[1]}
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C {dfrtp_1.sym} 2530 -1900 0 0 {name=x54 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 2440 -1920 0 0 {name=l42 sig_type=std_logic lab=CLK}
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C {lab_pin.sym} 2440 -1880 0 0 {name=l43 sig_type=std_logic lab=CLEAR_}
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C {lab_pin.sym} 2700 -1920 0 1 {name=l44 sig_type=std_logic lab=B[0]}
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C {inv_2.sym} 1630 -1990 0 0 {name=x55 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 1590 -1990 0 0 {name=l45 sig_type=std_logic lab=CLEAR_}
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C {noconn.sym} 1940 -2520 0 1 {name=l46}
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C {nand4_1.sym} 1960 -1770 0 0 {name=x56 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {inv_2.sym} 1790 -1790 0 0 {name=x57 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {inv_2.sym} 1790 -1710 0 0 {name=x58 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {inv_2.sym} 550 -3100 3 1 {name=x22 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 520 -3160 0 0 {name=l19 sig_type=std_logic lab=B[3]}
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C {inv_2.sym} 630 -3100 3 1 {name=x23 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 600 -3160 0 0 {name=l21 sig_type=std_logic lab=B[2]}
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C {inv_2.sym} 710 -3100 3 1 {name=x24 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 680 -3160 0 0 {name=l22 sig_type=std_logic lab=B[1]}
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C {inv_2.sym} 790 -3100 3 1 {name=x25 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
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C {lab_pin.sym} 760 -3160 0 0 {name=l23 sig_type=std_logic lab=B[0]}
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C {nand4_1.sym} 940 -580 0 0 {name=x21 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and4_1.sym} 1110 -2420 0 0 {name=x38 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -2980 0 0 {name=x39 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -2820 0 0 {name=x40 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and2_1.sym} 1110 -2900 0 0 {name=x41 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {lab_pin.sym} 1230 -2900 0 1 {name=p4 lab=S[0]}
|
|
C {nand4_1.sym} 940 -2500 0 0 {name=x42 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -2340 0 0 {name=x43 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -2180 0 0 {name=x44 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -2660 0 0 {name=x45 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {lab_pin.sym} 1230 -2420 0 1 {name=p5 lab=S[1]}
|
|
C {nand4_1.sym} 940 -2020 0 0 {name=x46 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -1860 0 0 {name=x47 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and2_1.sym} 1110 -1940 0 0 {name=x48 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {lab_pin.sym} 1230 -1940 0 1 {name=p6 lab=S[2]}
|
|
C {nand4_1.sym} 940 -1700 0 0 {name=x49 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -1540 0 0 {name=x50 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -1380 0 0 {name=x51 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and3_1.sym} 1110 -1540 0 0 {name=x52 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {lab_pin.sym} 1230 -1540 0 1 {name=p1 lab=S[3]}
|
|
C {and4_1.sym} 940 -1220 0 0 {name=x18 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and4_1.sym} 940 -1060 0 0 {name=x19 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and4_1.sym} 940 -900 0 0 {name=x20 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and4_1.sym} 940 -740 0 0 {name=x26 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {or4_1.sym} 1110 -980 0 0 {name=x27 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {lab_pin.sym} 1230 -980 0 1 {name=p2 lab=S[4]}
|
|
C {lab_pin.sym} 1230 -580 0 1 {name=p3 lab=S[5]}
|
|
C {nand4_1.sym} 940 -420 0 0 {name=x29 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -260 0 0 {name=x30 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {nand4_1.sym} 940 -100 0 0 {name=x31 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and3_1.sym} 1110 -260 0 0 {name=x32 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {lab_pin.sym} 1230 -260 0 1 {name=p7 lab=S[6]}
|
|
C {and2_1.sym} 2280 -2440 0 0 {name=x59 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and2_1.sym} 2280 -2260 0 0 {name=x60 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and2_1.sym} 2280 -2080 0 0 {name=x61 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {and2_1.sym} 2280 -1900 0 0 {name=x62 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {lab_pin.sym} 2070 -2460 0 0 {name=l51 sig_type=std_logic lab=BNEXT[3]}
|
|
C {lab_pin.sym} 2070 -2280 0 0 {name=l52 sig_type=std_logic lab=BNEXT[2]}
|
|
C {lab_pin.sym} 2070 -2100 0 0 {name=l53 sig_type=std_logic lab=BNEXT[1]}
|
|
C {lab_pin.sym} 2070 -1920 0 0 {name=l54 sig_type=std_logic lab=BNEXT[0]}
|
|
C {lab_pin.sym} 1730 -1830 0 0 {name=l55 sig_type=std_logic lab=BNEXT[3]}
|
|
C {lab_pin.sym} 1730 -1790 0 0 {name=l56 sig_type=std_logic lab=BNEXT[2]}
|
|
C {lab_pin.sym} 1730 -1750 0 0 {name=l57 sig_type=std_logic lab=BNEXT[1]}
|
|
C {lab_pin.sym} 1730 -1710 0 0 {name=l58 sig_type=std_logic lab=BNEXT[0]}
|
|
C {launcher.sym} 1840 -130 0 0 {name=h3
|
|
descr="START SIMULATION"
|
|
comment="
|
|
This launcher Starts a simple interactive simulation of the LFSR
|
|
"
|
|
tclcommand=" set count 0
|
|
set duration 1000
|
|
xschem select instance p8 ;# CLEAR_
|
|
xschem select instance p9 ;# CLK
|
|
xschem logic_set 0 ;# reset pulse (active low)
|
|
update ;# allow event loop to come in (update screen, user input etc)
|
|
after $duration
|
|
xschem select instance p9 clear ;# release CLK
|
|
xschem logic_set 1
|
|
xschem select instance p8 clear ;# release CLEAR_
|
|
xschem select instance p9 ;# CLK
|
|
update ;# allow event loop to come in (update screen, user input etc)
|
|
set logic_value 0
|
|
while \{1\} \{
|
|
update ;# allow event loop to come in (update screen, user input etc)
|
|
incr count
|
|
if \{$count>100 || $tclstop == 1\} break
|
|
puts \\"simulating: loop $count\\"
|
|
xschem logic_set $logic_value
|
|
after $duration
|
|
set logic_value [expr !$logic_value]
|
|
set duration [expr int($duration/1.05)]
|
|
\}
|
|
"
|
|
}
|
|
C {inv_2.sym} 2200 -1770 0 0 {name=x1 VGND=VGND VNB=VNB VPB=VPB VPWR=VPWR prefix=sky130_fd_sc_hd__ }
|
|
C {giant_label.sym} 1890 -1010 0 1 {name=l1 sig_type=std_logic lab=CLK text=CLK}
|
|
C {giant_label.sym} 2240 -1770 0 1 {name=l3 sig_type=std_logic lab=R text="RESET
|
|
COUNTER"}
|
|
C {giant_label.sym} 1890 -1180 0 1 {name=l4 sig_type=std_logic lab=CLEAR_ text="CLEAR (active low)"}
|
|
C {segment.sym} 3850 -2090 0 0 {name=l6 sig_type=std_logic lab=S[3]}
|
|
C {segment.sym} 3320 -2060 1 0 {name=l2 sig_type=std_logic lab=S[1]}
|
|
C {segment.sym} 3820 -2060 3 1 {name=l5 sig_type=std_logic lab=S[2]}
|
|
C {segment.sym} 3850 -2670 0 0 {name=l7 sig_type=std_logic lab=S[0]}
|
|
C {segment.sym} 3820 -2040 3 0 {name=l8 sig_type=std_logic lab=S[5]}
|
|
C {segment.sym} 3320 -2040 1 1 {name=l9 sig_type=std_logic lab=S[4]}
|
|
C {segment.sym} 3290 -1430 2 0 {name=l10 sig_type=std_logic lab=S[6]}
|
|
C {ipin.sym} 1760 -1180 0 0 {name=p8 sig_type=std_logic lab=CLEAR_}
|
|
C {ipin.sym} 1760 -1010 0 0 {name=p9 sig_type=std_logic lab=CLK}
|