Files
lib_xua/tests/test_midi_tx.py

89 lines
2.5 KiB
Python

# Copyright 2014-2024 XMOS LIMITED.
# This Software is subject to the terms of the XMOS Public Licence: Version 1.
import pytest
import Pyxsim
from Pyxsim import testers
from pathlib import Path
from uart_tx_checker import UARTTxChecker
MAX_CYCLES = 15000000
MIDI_RATE = 31250
CONFIGS = ["xs2", "xs3"]
CONFIGS = ["xs3"]
class Midi_expect:
def __init(self):
pass
def expect(self, commands):
expected = ""
for command in commands:
while len(command) < 3:
command.append(0)
expected += "uart_tx_checker: " + " ".join([f"0x{byte:02x}" for byte in command]) + "\n"
return expected
def create_midi_tx_file(commands):
with open("midi_tx_cmds.txt", "wt") as mt:
for command in commands:
while len(command) < 3:
command.append(0)
text = " ".join([str(byte) for byte in command]) + "\n"
mt.write(text)
#####
# This test builds the spdif transmitter app with a verity of presets and tests that the output matches those presets
#####
@pytest.mark.parametrize("config", CONFIGS)
def test_tx(capfd, config):
xe = str(Path(__file__).parent / f"test_midi/bin/{config}/test_midi_{config}.xe")
midi_commands = [[0x90, 60, 81]]
create_midi_tx_file(midi_commands)
tester = testers.ComparisonTester(Midi_expect().expect(midi_commands),
regexp = "uart_tx_checker:.+",
ordered = True)
tx_port = "tile[1]:XS1_PORT_4C"
baud = MIDI_RATE
bpb = 8
parity = 0
stop = 1
length_of_test = sum(len(cmd) for cmd in midi_commands)
simthreads = [
UARTTxChecker(tx_port, parity, baud, length_of_test, stop, bpb, debug=False)
]
simargs = ["--max-cycles", str(MAX_CYCLES)]
# simargs.extend(["--trace-to", "trace.txt", "--vcd-tracing", "-tile tile[1] -ports -o trace.vcd"]) #This is just for local debug so we can capture the run, pass as kwarg to run_with_pyxsim
# result = Pyxsim.run_on_simulator(
result = Pyxsim.run_on_simulator(
xe,
simthreads=simthreads,
instTracing=True,
# clean_before_build=True,
clean_before_build=False,
tester=tester,
capfd=capfd,
# capfd=None,
timeout=120,
simargs=simargs,
build_options=[
"-j",
f"CONFIG={config}",
"EXTRA_BUILD_FLAGS="
+ f" -DMIDI_RATE_HZ={MIDI_RATE}"
,
],
)
assert result