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44 lines
898 B
Python
44 lines
898 B
Python
from __future__ import absolute_import
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import myhdl
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from myhdl import *
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from lfsr24 import lfsr24
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def test_lfsr24():
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lfsr = Signal(modbv(0)[24:])
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enable = Signal(bool())
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clock = Signal(bool())
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reset = Signal(bool())
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dut = lfsr24(lfsr, enable, clock, reset)
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@instance
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def stimulus():
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enable.next = 0
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clock.next = 0
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reset.next = 0
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yield delay(10)
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reset.next = 1
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yield delay(10)
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reset.next = 0
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enable.next = 1
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for i in range(2**24 - 2):
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yield delay(10)
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clock.next = 1
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yield delay(10)
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clock.next = 0
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assert lfsr != 1
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yield delay(10)
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clock.next = 1
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yield delay(10)
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assert lfsr == 1
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return dut, stimulus
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if __name__ == '__main__':
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tb = Simulation(test_lfsr24())
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tb.run()
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