34 lines
805 B
Python
34 lines
805 B
Python
import unittest
|
|
import random
|
|
|
|
from litex.gen import *
|
|
from litex.gen.genlib.cdc import Gearbox
|
|
|
|
# TODO:
|
|
# connect two gearbox together:
|
|
# first gearbox: iwidth > owidth
|
|
# second gearbox: iwidth < owidth
|
|
# use 2 clock domains
|
|
# compare input data to output data, should be similar
|
|
# various datawidth/clock ratios
|
|
|
|
def source_generator(dut):
|
|
yield
|
|
|
|
|
|
def sink_generator(duc):
|
|
yield
|
|
|
|
|
|
class GearboxDUT(Module):
|
|
def __init__(self):
|
|
self.submodules.gearbox_down = Gearbox(10, "slow", 8, "fast")
|
|
self.submodules.gearbox_up = Gearbox(8, "fast", 10, "slow")
|
|
self.comb += self.gearbox_up.i.eq(self.gearbox_down.o)
|
|
self.i, self.o = self.gearbox_down.i, self.gearbox_up.o
|
|
|
|
|
|
class TestGearbox(unittest.TestCase):
|
|
def test_gearbox(self):
|
|
self.assertEqual(0, 0)
|