45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
from migen.fhdl.std import *
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from migen.bus.lasmibus import *
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from migen.sim.generic import Simulator, TopLevel
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from milkymist.lasmicon.bankmachine import *
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from common import sdram_geom, sdram_timing, CommandLogger
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def my_generator():
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for x in range(10):
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yield True, x
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for x in range(10):
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yield False, 128*x
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class TB(Module):
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def __init__(self):
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self.req = Interface(32, 32, 1,
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sdram_timing.req_queue_size, sdram_timing.read_latency, sdram_timing.write_latency)
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self.submodules.dut = BankMachine(sdram_geom, sdram_timing, 2, 0, self.req)
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self.submodules.logger = CommandLogger(self.dut.cmd, True)
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self.generator = my_generator()
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self.dat_ack_cnt = 0
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def do_simulation(self, s):
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if s.rd(self.req.dat_ack):
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self.dat_ack_cnt += 1
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if s.rd(self.req.req_ack):
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try:
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we, adr = next(self.generator)
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except StopIteration:
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s.wr(self.req.stb, 0)
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if not s.rd(self.req.lock):
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s.interrupt = True
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print("data ack count: {0}".format(self.dat_ack_cnt))
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return
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s.wr(self.req.adr, adr)
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s.wr(self.req.we, we)
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s.wr(self.req.stb, 1)
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def main():
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sim = Simulator(TB(), TopLevel("my.vcd"))
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sim.run()
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main()
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