def get_result(self):
"""Internal use only: not a public interface"""
repeat_count = 0
if self.port is not None:
buffer = ""
while True:
c = self.port.read(1)
if len(c) == 0:
if(repeat_count == 5):
break
print "Got nothing\n"
repeat_count = repeat_count + 1
continue
if c == '\r':
continue
if c == ">":
break;
#if something is in the buffer, add it
if buffer != "" or c != ">":
buffer = buffer + c
if(buffer == ""):
return None
return buffer
else:
debug_display(self.notify_window, 3, "NO self.port!")
return None
def get_result(self):
"""Internal use only: not a public interface"""
repeat_count = 0
if self.port is not None:
buffer = ""
while True:
c = self.port.read(1)
if len(c) == 0:
if (repeat_count == 5):
break
print "Got nothing\n"
repeat_count = repeat_count + 1
continue
if c == '\r':
continue
if c == ">":
break
#if something is in the buffer, add it
if buffer != "" or c != ">":
buffer = buffer + c
if (buffer == ""):
return None
return buffer
else:
debug_display(self.notify_window, 3, "NO self.port!")
return None
def __init__(self, portnum, notify_window, SERTIMEOUT):
"""Initializes port by resetting the device and gettings supported PIDs. """
baud = 38400
databits = 8
parity = serial.PARITY_NONE
stop_bits = 1
to = SERTIMEOUT
self.elm_version = "Unknown"
#state SERIAL is 1 connected, 0 disconnected (connection failed)
self.state = 1
self.port = None
self.notify_window = notify_window
debug_display(self.notify_window, 1, "Opening interface (serial port)")
try:
self.port = serial.Serial(portnum, baud, parity=parity, stopbits=stop_bits, bytesize=databits, timeout=to)
except serial.SerialException as e:
print e
self.state = 0
return None
debug_display(self.notify_window, 1, "Interface " + self.port.portstr + "successfully opened")
debug_display(self.notify_window, 1, "Connecting to ECU...")
try:
self.send_command("atz") # initialize
time.sleep(1)
except serial.SerialException:
self.state = 0
return None
self.elm_version = self.get_result()
if(self.elm_version is None):
self.state = 0
return None
debug_display(self.notify_window, 2, "atz response:" + self.elm_version)
self.send_command("ate0") # echo off
debug_display(self.notify_window, 2, "ate0 response:" + self.get_result())
self.send_command("0100")
ready = self.get_result()
if(ready is None):
self.state = 0
return None
debug_display(self.notify_window, 2, "0100 response:" + ready)
return None
def __init__(self, portnum, notify_window, SERTIMEOUT):
"""Initializes port by resetting the device and gettings supported PIDs. """
baud = 38400
databits = 8
parity = serial.PARITY_NONE
stop_bits = 1
to = SERTIMEOUT
self.elm_version = "Unknown"
#state SERIAL is 1 connected, 0 disconnected (connection failed)
self.state = 1
self.port = None
self.notify_window = notify_window
debug_display(self.notify_window, 1, "Opening interface (serial port)")
try:
self.port = serial.Serial(portnum,
baud,
parity=parity,
stopbits=stop_bits,
bytesize=databits,
timeout=to)
except serial.SerialException as e:
print e
self.state = 0
return None
debug_display(self.notify_window, 1,
"Interface " + self.port.portstr + "successfully opened")
debug_display(self.notify_window, 1, "Connecting to ECU...")
try:
self.send_command("atz") # initialize
time.sleep(1)
except serial.SerialException:
self.state = 0
return None
self.elm_version = self.get_result()
if (self.elm_version is None):
self.state = 0
return None
debug_display(self.notify_window, 2,
"atz response:" + self.elm_version)
self.send_command("ate0") # echo off
debug_display(self.notify_window, 2,
"ate0 response:" + self.get_result())
self.send_command("0100")
ready = self.get_result()
if (ready is None):
self.state = 0
return None
debug_display(self.notify_window, 2, "0100 response:" + ready)
return None
