litex/misoclib/com/litepcie/test/wishbone_tb.py

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2015-04-17 07:45:01 -04:00
from migen.fhdl.std import *
from migen.bus import wishbone
from migen.sim.generic import run_simulation
from misoclib.com.litepcie.core import Endpoint
from misoclib.com.litepcie.frontend.bridge.wishbone import WishboneBridge
from misoclib.com.litepcie.test.common import *
from misoclib.com.litepcie.test.model.host import *
root_id = 0x100
endpoint_id = 0x400
class TB(Module):
def __init__(self):
self.submodules.host = Host(64, root_id, endpoint_id,
phy_debug=False,
chipset_debug=False,
host_debug=False)
self.submodules.endpoint = Endpoint(self.host.phy)
self.submodules.wishbone_bridge = WishboneBridge(self.endpoint, lambda a: 1)
self.submodules.sram = wishbone.SRAM(1024, bus=self.wishbone_bridge.wishbone)
def gen_simulation(self, selfp):
wr_datas = [seed_to_data(i, True) for i in range(64)]
for i in range(64):
yield from self.host.chipset.wr32(i, [wr_datas[i]])
rd_datas = []
for i in range(64):
yield from self.host.chipset.rd32(i)
rd_datas.append(self.host.chipset.rd32_data[0])
s, l, e = check(wr_datas, rd_datas)
print("shift " + str(s) + " / length " + str(l) + " / errors " + str(e))
if __name__ == "__main__":
run_simulation(TB(), ncycles=1000, vcd_name="my.vcd", keep_files=True)