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33 lines
846 B
Python
33 lines
846 B
Python
from __future__ import generators
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from myhdl import Signal, delay, posedge, now, Simulation
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def clkGen(clock, period=20):
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lowTime = int(period/2)
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highTime = period - lowTime
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while 1:
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yield delay(lowTime)
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clock.next = 1
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yield delay(highTime)
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clock.next = 0
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def sayHello(clock, to="World!"):
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while 1:
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yield posedge(clock)
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print "%s Hello %s" % (now(), to)
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def greetings():
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clk1 = Signal(0)
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clk2 = Signal(0)
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clkGen1 = clkGen(clk1) # positional and default association
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clkGen2 = clkGen(clock=clk2, period=19) # named assocation
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sayHello1 = sayHello(clock=clk1) # named and default association
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sayHello2 = sayHello(to="MyHDL", clock=clk2) # named assocation
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return clkGen1, clkGen2, sayHello1, sayHello2
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sim = Simulation(greetings())
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sim.run(50)
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