mirror of https://github.com/m-labs/artiq.git
drtio: test large data
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parent
0903964488
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b2450c7c56
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@ -1,10 +1,12 @@
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import unittest
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from types import SimpleNamespace
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import random
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from migen import *
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from artiq.gateware.drtio import *
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from artiq.gateware import rtio
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from artiq.gateware.rtio import rtlink
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from artiq.gateware.rtio.phy import ttl_simple
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from artiq.coredevice.exceptions import *
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@ -33,6 +35,14 @@ class DummyRXSynchronizer:
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return signal
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class LargeDataReceiver(Module):
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def __init__(self, width):
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self.rtlink = rtlink.Interface(rtlink.OInterface(width))
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self.received_data = Signal(width)
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self.sync.rio_phy += If(self.rtlink.o.stb,
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self.received_data.eq(self.rtlink.o.data))
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class DUT(Module):
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def __init__(self, nwords):
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self.ttl0 = Signal()
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@ -45,9 +55,11 @@ class DUT(Module):
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rx_synchronizer = DummyRXSynchronizer()
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self.submodules.phy0 = ttl_simple.Output(self.ttl0)
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self.submodules.phy1 = ttl_simple.Output(self.ttl1)
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self.submodules.phy2 = LargeDataReceiver(512)
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rtio_channels = [
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rtio.Channel.from_phy(self.phy0, ofifo_depth=4),
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rtio.Channel.from_phy(self.phy1, ofifo_depth=4)
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rtio.Channel.from_phy(self.phy1, ofifo_depth=4),
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rtio.Channel.from_phy(self.phy2, ofifo_depth=4),
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]
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self.submodules.satellite = DRTIOSatellite(
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self.transceivers.bob, rx_synchronizer, rtio_channels)
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@ -64,11 +76,13 @@ class TestFullStack(unittest.TestCase):
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ttl_changes = []
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correct_ttl_changes = [
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# from test_pulses
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(203, 0),
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(208, 0),
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(208, 1),
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(214, 1),
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# from test_fifo_space
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(414, 0),
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(454, 0),
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(494, 0),
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@ -136,6 +150,15 @@ class TestFullStack(unittest.TestCase):
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yield from write(0, 1)
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delay(200*8)
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def test_large_data():
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correct_large_data = random.Random(0).randrange(2**512-1)
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self.assertNotEqual((yield dut.phy2.received_data), correct_large_data)
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delay(10*8)
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yield from write(2, correct_large_data)
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for i in range(40):
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yield
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self.assertEqual((yield dut.phy2.received_data), correct_large_data)
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def test_fifo_space():
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delay(200*8)
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max_wlen = 0
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@ -161,11 +184,11 @@ class TestFullStack(unittest.TestCase):
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def test_tsc_error():
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err_present = yield from mgr.packet_err_present.read()
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self.assertEqual(err_present, 0)
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yield from csrs.tsc_correction.write(10000000)
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yield from csrs.tsc_correction.write(100000000)
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yield from csrs.set_time.write(1)
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for i in range(5):
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for i in range(15):
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yield
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delay(10000)
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delay(10000*8)
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yield from write(0, 1)
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for i in range(10):
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yield
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@ -187,6 +210,7 @@ class TestFullStack(unittest.TestCase):
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yield from test_pulses()
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yield from test_sequence_error()
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yield from test_fifo_space()
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yield from test_large_data()
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yield from test_fifo_emptied()
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yield from test_tsc_error()
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@ -203,7 +227,7 @@ class TestFullStack(unittest.TestCase):
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yield
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cycle += 1
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run_simulation(dut,
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run_simulation(dut,
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{"sys": test(), "rtio": check_ttls()}, self.clocks)
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self.assertEqual(ttl_changes, correct_ttl_changes)
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