mirror of https://github.com/m-labs/artiq.git
130 lines
3.8 KiB
Python
130 lines
3.8 KiB
Python
# Copyright (C) 2014, 2015 Robert Jordens <jordens@gmail.com>
|
|
|
|
import unittest
|
|
import os
|
|
import io
|
|
|
|
from artiq.devices.pdq2.driver import Pdq2
|
|
from artiq.wavesynth.compute_samples import Synthesizer
|
|
|
|
|
|
pdq2_gateware = os.getenv("ARTIQ_PDQ2_GATEWARE")
|
|
|
|
|
|
class TestPdq2(unittest.TestCase):
|
|
def setUp(self):
|
|
self.dev = Pdq2(dev=io.BytesIO())
|
|
self.synth = Synthesizer(3, _test_program)
|
|
|
|
def test_reset(self):
|
|
self.dev.cmd("RESET", True)
|
|
buf = self.dev.dev.getvalue()
|
|
self.assertEqual(buf, b"\xa5\x00")
|
|
|
|
def test_program(self):
|
|
# about 0.14 ms
|
|
self.dev.program(_test_program)
|
|
|
|
def test_cmd_program(self):
|
|
self.dev.cmd("ARM", False)
|
|
self.dev.cmd("START", False)
|
|
self.dev.program(_test_program)
|
|
self.dev.cmd("START", True)
|
|
self.dev.cmd("ARM", True)
|
|
#self.dev.cmd("TRIGGER", True)
|
|
return self.dev.dev.getvalue()
|
|
|
|
def test_synth(self):
|
|
s = self.synth
|
|
s.select(0)
|
|
y = s.trigger()
|
|
return list(zip(*y))
|
|
|
|
def run_gateware(self):
|
|
import sys
|
|
sys.path.append(pdq2_gateware)
|
|
from gateware.pdq2 import Pdq2Sim
|
|
from migen.sim.generic import run_simulation
|
|
|
|
buf = self.test_cmd_program()
|
|
tb = Pdq2Sim(buf)
|
|
tb.ctrl_pads.trigger.reset = 1
|
|
run_simulation(tb, ncycles=len(buf) + 250)
|
|
delays = 7, 10, 30
|
|
y = list(zip(*tb.outputs[len(buf) + 130:]))
|
|
y = list(zip(*(yi[di:] for yi, di in zip(y, delays))))
|
|
self.assertGreaterEqual(len(y), 80)
|
|
self.assertEqual(len(y[0]), 3)
|
|
return y
|
|
|
|
@unittest.skipUnless(pdq2_gateware, "no pdq2 gateware")
|
|
def test_run_compare(self):
|
|
y_ref = self.test_synth()
|
|
y = self.run_gateware()
|
|
|
|
for i, (yi, yi_ref) in enumerate(zip(y, y_ref)):
|
|
for j, (yij, yij_ref) in enumerate(zip(yi, yi_ref)):
|
|
yij = yij*20./2**16
|
|
if yij > 10:
|
|
yij -= 20
|
|
self.assertAlmostEqual(yij, yij_ref, 2, "disagreement at "
|
|
"t={}, c={}".format(i, j))
|
|
|
|
@unittest.skipUnless(pdq2_gateware, "no pdq2 gateware")
|
|
@unittest.skip("manual/visual test")
|
|
def test_run_plot(self):
|
|
from matplotlib import pyplot as plt
|
|
import numpy as np
|
|
y_ref = self.test_synth()
|
|
y_ref = np.array(y_ref)
|
|
y = self.run_gateware()
|
|
y = np.array(y, dtype=np.uint16).view(np.int16)
|
|
y = y*20./2**16
|
|
plt.step(np.arange(len(y)), y)
|
|
plt.step(np.arange(len(y_ref)), y_ref, "k")
|
|
plt.show()
|
|
|
|
|
|
_test_program = [
|
|
[
|
|
{
|
|
"trigger": True,
|
|
"duration": 20,
|
|
"channel_data": [
|
|
{"bias": {"amplitude": [0, 0, 2e-3]}},
|
|
{"bias": {"amplitude": [1, 0, -7.5e-3, 7.5e-4]}},
|
|
{"dds": {
|
|
"amplitude": [0, 0, 4e-3, 0],
|
|
"phase": [.25, .025],
|
|
}},
|
|
],
|
|
},
|
|
{
|
|
"duration": 40,
|
|
"channel_data": [
|
|
{"bias": {"amplitude": [.4, .04, -2e-3]}},
|
|
{"bias": {
|
|
"amplitude": [.5],
|
|
"silence": True,
|
|
}},
|
|
{"dds": {
|
|
"amplitude": [.8, .08, -4e-3, 0],
|
|
"phase": [.25, .025, .02/40],
|
|
"clear": True,
|
|
}},
|
|
],
|
|
},
|
|
{
|
|
"duration": 20,
|
|
"channel_data": [
|
|
{"bias": {"amplitude": [.4, -.04, 2e-3]}},
|
|
{"bias": {"amplitude": [.5, 0, -7.5e-3, 7.5e-4]}},
|
|
{"dds": {
|
|
"amplitude": [.8, -.08, 4e-3, 0],
|
|
"phase": [-.25],
|
|
}},
|
|
],
|
|
},
|
|
]
|
|
]
|