20 lines
438 B
Python
20 lines
438 B
Python
from nmigen import *
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from nmigen.cli import main, pysim
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class Counter:
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def __init__(self, width):
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self.v = Signal(width, reset=2**width-1)
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self.o = Signal()
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def get_fragment(self, platform):
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m = Module()
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m.d.sync += self.v.eq(self.v + 1)
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m.d.comb += self.o.eq(self.v[-1])
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return m.lower(platform)
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ctr = Counter(width=16)
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if __name__ == "__main__":
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main(ctr, ports=[ctr.o])
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