53 lines
1.8 KiB
Python
53 lines
1.8 KiB
Python
from litex.gen import *
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from litex.soc.interconnect import wishbone
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from litex.soc.interconnect.stream_sim import *
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from liteeth.common import *
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from liteeth.core import LiteEthIPCore
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from model import phy, mac, arp, ip
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ip_address = 0x12345678
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mac_address = 0x12345678abcd
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class TB(Module):
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def __init__(self):
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self.submodules.phy_model = phy.PHY(8, debug=False)
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self.submodules.mac_model = mac.MAC(self.phy_model, debug=False, loopback=False)
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self.submodules.arp_model = arp.ARP(self.mac_model, mac_address, ip_address, debug=False)
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self.submodules.ip_model = ip.IP(self.mac_model, mac_address, ip_address, debug=False, loopback=True)
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self.submodules.ip = LiteEthIPCore(self.phy_model, mac_address, ip_address, 100000)
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self.ip_port = self.ip.ip.crossbar.get_port(udp_protocol)
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def main_generator(dut):
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while True:
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yield dut.ip_port.sink.valid.eq(1)
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yield dut.ip_port.sink.last.eq(1)
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yield dut.ip_port.sink.ip_address.eq(0x12345678)
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yield dut.ip_port.sink.protocol.eq(udp_protocol)
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yield dut.ip_port.source.ready.eq(1)
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if (yield dut.ip_port.source.valid) == 1 and (yield dut.ip_port.source.last) == 1:
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print("packet from IP 0x{:08x}".format((yield dut.ip_port.sink.ip_address)))
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# XXX: find a way to exit properly
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import sys
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sys.exit()
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yield
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if __name__ == "__main__":
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tb = TB()
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generators = {
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"sys" : [main_generator(tb)],
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"eth_tx": [tb.phy_model.phy_sink.generator(),
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tb.phy_model.generator()],
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"eth_rx": tb.phy_model.phy_source.generator()
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}
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clocks = {"sys": 10,
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"eth_rx": 10,
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"eth_tx": 10}
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run_simulation(tb, generators, clocks, vcd_name="sim.vcd")
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