Initial MIDI Rx test using pyxsim

tests/test_midi_rx.py

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+# 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_rx_checker import UARTRxChecker
+from midi_test_helpers import midi_expect_rx, create_midi_rx_file, create_midi_tx_file
+
+MAX_CYCLES = 15000000
+MIDI_RATE = 31250
+CONFIGS = ["xs2", "xs3"]
+CONFIGS = ["xs3"]
+
+
+#####
+# 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_rx(capfd, config):
+    xe = str(Path(__file__).parent / f"test_midi/bin/{config}/test_midi_{config}.xe")
+
+    midi_commands = [[0x90, 60, 81]]
+    create_midi_rx_file(1)
+    create_midi_tx_file()
+
+
+    tester = testers.ComparisonTester(midi_expect_rx().expect(midi_commands),
+                                        regexp = "uart_tx_checker:.+",
+                                        ordered = True)
+    
+    rx_port = "tile[1]:XS1_PORT_1F"
+    tx_port = "tile[1]:XS1_PORT_4C" # Needed so that UARTRxChecker (a transmitter) knows when to start
+    baud = MIDI_RATE
+    bpb = 8
+    parity = 0 
+    stop = 1
+
+    midi_commands_flattened = [item for row in midi_commands for item in row]
+    # midi_commands_flattened.append(0x00) # send a null afterwards to give RXChecker to complete
+
+    simthreads = [
+        UARTRxChecker(tx_port, rx_port, parity, baud, stop, bpb, midi_commands_flattened, 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