diff --git a/upy.py b/upy.py index dfda5befe53ddbb9d11a5b148286e1e289dc0d7e..4a33a96ae5b585eda936e5226cf0b146d9352ce3 100644 --- a/upy.py +++ b/upy.py @@ -21,6 +21,7 @@ char_delay = 0.0001 import sys,serial,time if (len(sys.argv) < 3): print("upy.py port command [arguments]") + sys.exit() s = serial.Serial(sys.argv[1]) s.write(b'\r\n\x03\r\n') # ^c break s.write(b'\x01') # ^a enter raw mode