67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
from migen.fhdl.std import *
|
|
from migen.bus import wishbone
|
|
from migen.bus.transactions import *
|
|
from migen.sim.generic import run_simulation
|
|
|
|
from liteeth.common import *
|
|
from liteeth.core import LiteEthUDPIPCore
|
|
|
|
from liteeth.test.common import *
|
|
from liteeth.test.model import phy, mac, arp, ip, udp
|
|
|
|
ip_address = 0x12345678
|
|
mac_address = 0x12345678abcd
|
|
|
|
class TB(Module):
|
|
def __init__(self):
|
|
self.submodules.phy_model = phy.PHY(8, debug=False)
|
|
self.submodules.mac_model = mac.MAC(self.phy_model, debug=False, loopback=False)
|
|
self.submodules.arp_model = arp.ARP(self.mac_model, mac_address, ip_address, debug=False)
|
|
self.submodules.ip_model = ip.IP(self.mac_model, mac_address, ip_address, debug=False, loopback=False)
|
|
self.submodules.udp_model = udp.UDP(self.ip_model, ip_address, debug=False, loopback=True)
|
|
|
|
self.submodules.udp_ip = LiteEthUDPIPCore(self.phy_model, mac_address, ip_address)
|
|
self.submodules.streamer = PacketStreamer(eth_udp_user_description(8))
|
|
self.submodules.logger = PacketLogger(eth_udp_user_description(8))
|
|
self.comb += [
|
|
Record.connect(self.streamer.source, self.udp_ip.sink),
|
|
self.udp_ip.sink.ip_address.eq(0x12345678),
|
|
self.udp_ip.sink.src_port.eq(0x1234),
|
|
self.udp_ip.sink.dst_port.eq(0x5678),
|
|
self.udp_ip.sink.length.eq(64),
|
|
Record.connect(self.udp_ip.source, self.logger.sink)
|
|
]
|
|
|
|
# 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
|
|
|
|
while True:
|
|
packet = Packet([i for i in range(64)])
|
|
yield from self.streamer.send(packet)
|
|
yield from self.logger.receive()
|
|
|
|
# check results
|
|
s, l, e = check(packet, self.logger.packet)
|
|
print("shift "+ str(s) + " / length " + str(l) + " / errors " + str(e))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
run_simulation(TB(), ncycles=2048, vcd_name="my.vcd", keep_files=True)
|