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from __future__ import print_function
import sys
import re
import time
import mido
from mido import Message
def test_midi_in(port):
expected_messages_count=0
while expected_messages_count < 7:
for message in port.iter_pending():
if message.type in ('note_on', 'note_off', 'program_change', 'sysex'):
yield message
expected_messages_count+=1
time.sleep(0.1)
def test_midi_loopback(input_port):
expected_messages_count=0
while expected_messages_count < 1:
for message in input_port.iter_pending():
print('Test MIDI OUT loopback received {}'.format(message.hex()))
expected_messages_count+=1
def test_midi_out_loopback(output_port,input_port):
print("Test MIDI OUT loopback")
output_port.send(Message('program_change', program=1))
test_midi_loopback(input_port)
output_port.send(Message('note_on', note=21))
test_midi_loopback(input_port)
output_port.send(Message('note_off', note=21))
test_midi_loopback(input_port)
output_port.send(Message('sysex', data=[0x7E,0x7F,0x09,0x01]))
test_midi_loopback(input_port)
output_port.send(Message('sysex', data=[0x7F,0x7F,0x04,0x01,0x7F,0x7F]))
test_midi_loopback(input_port)
output_port.send(Message('sysex', data=[0x41,0x10,0x42,0x12,0x40,0x00,0x7F,0x00,0x41]))
test_midi_loopback(input_port)
output_port.send(Message('sysex', data=[0x41,0x10,0x42,0x12,0x40,0x00,0x04,0x7F,0x3D]))
test_midi_loopback(input_port)
portname=""
while portname=="":
print("Wait for MIDI IN plug ...")
for name in mido.get_input_names():
matchObj = re.match( r'Mbed', name)
if matchObj:
portname=name
time.sleep( 1 )
try:
input_port = mido.open_input(portname)
output_port = mido.open_output(portname)
print('Using {}'.format(input_port))
print("Test MIDI IN")
for message in test_midi_in(input_port):
print('Test MIDI IN received {}'.format(message.hex()))
test_midi_out_loopback(output_port,input_port)
except KeyboardInterrupt:
pass
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