from migen.fhdl.std import * from migen.bus import wishbone from migen.bus.transactions import * from migen.sim.generic import run_simulation from misoclib.com.liteeth.common import * from misoclib.com.liteeth.core import LiteEthIPCore from misoclib.com.liteeth.test.common import * from misoclib.com.liteeth.test.model.dumps import * from misoclib.com.liteeth.test.model.mac import * from misoclib.com.liteeth.test.model.ip import * from misoclib.com.liteeth.test.model.icmp import * from misoclib.com.liteeth.test.model import phy, mac, arp, ip, icmp ip_address = 0x12345678 mac_address = 0x12345678abcd class TB(Module): def __init__(self): self.submodules.phy_model = phy.PHY(8, debug=True) self.submodules.mac_model = mac.MAC(self.phy_model, debug=True, loopback=False) self.submodules.arp_model = arp.ARP(self.mac_model, mac_address, ip_address, debug=True) self.submodules.ip_model = ip.IP(self.mac_model, mac_address, ip_address, debug=True, loopback=False) self.submodules.icmp_model = icmp.ICMP(self.ip_model, ip_address, debug=True) self.submodules.ip = LiteEthIPCore(self.phy_model, mac_address, ip_address, 100000) # use sys_clk for each clock_domain self.clock_domains.cd_eth_rx = ClockDomain() self.clock_domains.cd_eth_tx = ClockDomain() self.comb += [ self.cd_eth_rx.clk.eq(ClockSignal()), self.cd_eth_rx.rst.eq(ResetSignal()), self.cd_eth_tx.clk.eq(ClockSignal()), self.cd_eth_tx.rst.eq(ResetSignal()), ] def gen_simulation(self, selfp): selfp.cd_eth_rx.rst = 1 selfp.cd_eth_tx.rst = 1 yield selfp.cd_eth_rx.rst = 0 selfp.cd_eth_tx.rst = 0 for i in range(100): yield packet = MACPacket(ping_request) packet.decode_remove_header() packet = IPPacket(packet) packet.decode() packet = ICMPPacket(packet) packet.decode() self.icmp_model.send(packet) if __name__ == "__main__": run_simulation(TB(), ncycles=2048, vcd_name="my.vcd", keep_files=True)