test: mac_wishbone_tb OK
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@ -10,7 +10,11 @@ class LiteEthMAC(Module, AutoCSR):
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if interface == "core":
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self.sink, self.source = self.core.sink, self.core.source
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elif interface == "wishbone":
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self.interface = wishbone.LiteEthMACWishboneInterface(dw, 2, 2)
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self.submodules.interface = wishbone.LiteEthMACWishboneInterface(dw, 2, 2)
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self.comb += [
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Record.connect(self.interface.source, self.core.sink),
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Record.connect(self.core.source, self.interface.sink)
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]
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self.ev, self.bus = self.interface.sram.ev, self.interface.bus
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self.csrs = self.interface.get_csrs()
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elif interface == "dma":
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@ -3,10 +3,11 @@ from migen.bus import wishbone
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from migen.bus.transactions import *
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from migen.sim.generic import run_simulation
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from misoclib.ethmac import EthMAC
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from misoclib.ethmac.phy import loopback
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from liteeth.common import *
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from liteeth.mac import LiteEthMAC
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from misoclib.ethmac.test.common import *
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from liteeth.test.common import *
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from liteeth.test.model import phy, mac
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class WishboneMaster:
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def __init__(self, obj):
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@ -62,10 +63,25 @@ class SRAMReaderDriver:
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self.obj.ev.done.clear = 0
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yield
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class SRAMWriterDriver:
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def __init__(self, obj):
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self.obj = obj
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def wait_available(self):
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while self.obj.ev.available.pending == 0:
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yield
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def clear_available(self):
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self.obj.ev.available.clear = 1
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yield
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self.obj.ev.available.clear = 0
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yield
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class TB(Module):
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def __init__(self):
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self.submodules.ethphy = loopback.LoopbackPHY()
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self.submodules.ethmac = EthMAC(phy=self.ethphy, with_hw_preamble_crc=True)
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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=True)
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self.submodules.ethmac = LiteEthMAC(phy=self.phy_model, dw=32, interface="wishbone", with_hw_preamble_crc=True)
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# use sys_clk for each clock_domain
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self.clock_domains.cd_eth_rx = ClockDomain()
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@ -85,17 +101,19 @@ class TB(Module):
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selfp.cd_eth_tx.rst = 0
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wishbone_master = WishboneMaster(selfp.ethmac.bus)
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sram_reader_driver = SRAMReaderDriver(selfp.ethmac.sram_reader)
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sram_reader_driver = SRAMReaderDriver(selfp.ethmac.interface.sram.reader)
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sram_writer_driver = SRAMWriterDriver(selfp.ethmac.interface.sram.writer)
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sram_writer_slots_offset = [0x000, 0x200]
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sram_reader_slots_offset = [0x400, 0x600]
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length = 1500+2
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length = 150+2
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tx_payload = [seed_to_data(i, True) % 0xFF for i in range(length)] + [0, 0, 0, 0]
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errors = 0
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while True:
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for slot in range(2):
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print("slot {}:".format(slot))
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# fill tx memory
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@ -108,6 +126,10 @@ class TB(Module):
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yield from sram_reader_driver.wait_done()
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yield from sram_reader_driver.clear_done()
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# wait rx
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yield from sram_writer_driver.wait_available()
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yield from sram_writer_driver.clear_available()
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# get rx payload (loopback on PHY Model)
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rx_payload = []
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for i in range(length//4+1):
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@ -120,4 +142,4 @@ class TB(Module):
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print("shift "+ str(s) + " / length " + str(l) + " / errors " + str(e))
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if __name__ == "__main__":
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run_simulation(TB(), vcd_name="my.vcd")
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run_simulation(TB(), ncycles=3000, vcd_name="my.vcd", keep_files=True)
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