37 lines
922 B
Python
37 lines
922 B
Python
from migen.fhdl.std import *
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from migen.bank.description import *
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from migen.genlib.fsm import FSM, NextState
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from migen.flow.actor import *
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from migen.actorlib.fifo import AsyncFIFO, SyncFIFO
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from migen.flow.plumbing import Buffer
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from migen.fhdl.specials import Memory
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def data_layout(dw):
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return [("data", dw, DIR_M_TO_S)]
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def hit_layout():
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return [("hit", 1, DIR_M_TO_S)]
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@DecorateModule(InsertReset)
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@DecorateModule(InsertCE)
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class Counter(Module):
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def __init__(self, signal=None, **kwargs):
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if signal is None:
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self.value = Signal(**kwargs)
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else:
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self.value = signal
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self.width = flen(self.value)
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self.sync += self.value.eq(self.value+1)
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@DecorateModule(InsertReset)
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@DecorateModule(InsertCE)
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class Timeout(Module):
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def __init__(self, length):
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self.reached = Signal()
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###
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value = Signal(max=length)
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self.sync += value.eq(value+1)
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self.comb += [
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self.reached.eq(value == length)
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]
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