def __init__(self, sdrphy, dfi, sdram_geom, sdram_timing, pads, sdram_clk):
self.clk_freq = 80000000
phy_settings = sdrphy.settings
rdphase = phy_settings.rdphase
self.submodules.slave = Minicon(phy_settings, sdram_geom, sdram_timing)
self.submodules.tap = wishbone.Tap(self.slave.bus)
self.submodules.dc = dc = wishbone.DownConverter(32, phy_settings.nphases*flen(dfi.phases[rdphase].rddata))
self.submodules.master = wishbone.Initiator(self.genxfers(), bus=dc.wishbone_i)
self.submodules.intercon = wishbone.InterconnectPointToPoint(dc.wishbone_o, self.slave.bus)
self.submodules.sdrphy = self.sdrphy = sdrphy
self.dfi = dfi
self.pads = pads
self.specials += Instance("mt48lc4m16a2",
io_Dq=pads.dq,
i_Addr=pads.a,
i_Ba=pads.ba,
i_Clk=ClockSignal(),
i_Cke=pads.cke,
i_Cs_n=pads.cs_n,
i_Ras_n=pads.ras_n,
i_Cas_n=pads.cas_n,
i_We_n=pads.we_n,
i_Dqm=pads.dm
)
def __init__(self):
self.submodules.master = wishbone.Initiator(self.gen_reads())
self.pads = Record([("cs_n", 1), ("clk", 1), ("dq", 4)])
self.submodules.slave = SpiFlash(self.pads)
self.submodules.tap = wishbone.Tap(self.slave.bus)
self.submodules.intercon = wishbone.InterconnectPointToPoint(
self.master.bus, self.slave.bus)
self.cycle = 0
def __init__(self):
self.submodules.ctler = LASMIcon(sdram_phy, sdram_geom, sdram_timing)
self.submodules.xbar = lasmibus.Crossbar([self.ctler.lasmic],
self.ctler.nrowbits)
self.submodules.logger = DFILogger(self.ctler.dfi)
self.submodules.bridge = wishbone2lasmi.WB2LASMI(
l2_size // 4, self.xbar.get_master())
self.submodules.initiator = wishbone.Initiator(my_generator())
self.submodules.conn = wishbone.InterconnectPointToPoint(
self.initiator.bus, self.bridge.wishbone)
def __init__(self):
# The "wishbone.Initiator" library component runs our generator
# and manipulates the bus signals accordingly.
self.submodules.master = wishbone.Initiator(my_generator())
# The "wishbone.Target" library component examines the bus signals
# and calls into our model object.
self.submodules.slave = wishbone.Target(MyModelWB())
# The "wishbone.Tap" library component examines the bus at the slave port
# and displays the transactions on the console (<TRead...>/<TWrite...>).
self.submodules.tap = wishbone.Tap(self.slave.bus)
# Connect the master to the slave.
self.submodules.intercon = wishbone.InterconnectPointToPoint(
self.master.bus, self.slave.bus)
def main():
# The "wishbone.Initiator" library component runs our generator
# and manipulates the bus signals accordingly.
master = wishbone.Initiator(my_generator())
# Our slave.
slave = MyPeripheral()
# The "wishbone.Tap" library component examines the bus at the slave port
# and displays the transactions on the console (<TRead...>/<TWrite...>).
tap = wishbone.Tap(slave.bus)
# Connect the master to the slave.
intercon = wishbone.InterconnectPointToPoint(master.bus, slave.bus)
# A small extra simulation function to terminate the process when
# the initiator is done (i.e. our generator is exhausted).
def end_simulation(s):
s.interrupt = master.done
fragment = autofragment.from_local() + Fragment(sim=[end_simulation])
sim = Simulator(fragment, Runner())
sim.run()
def do_finalize(self):
UnifiedIOObject.do_finalize(self)
callers = []
self.busname_to_caller_id = {}
if self.get_dataflow():
callers.append(TokenExchanger(self.dispatch_g(0), self))
for k, v in self.get_buses().items():
caller_id = len(callers)
self.busname_to_caller_id[k] = caller_id
g = self.dispatch_g(caller_id)
if isinstance(v, wishbone.Interface):
caller = wishbone.Initiator(g, v)
elif isinstance(v, Memory):
caller = memory.Initiator(g, v)
callers.append(caller)
self.submodules += callers
self.dispatch_state = _WAIT_COMPLETE
self.dispatch_caller = 0
self.pending_transaction = None
def __init__(self):
pads = _TestPads()
self.submodules.dut = AD9xxx(pads, drive_fud=True)
self.submodules.initiator = wishbone.Initiator(_test_gen())
self.submodules.interconnect = wishbone.InterconnectPointToPoint(
self.initiator.bus, self.dut.bus)