udsoncan.exceptions.TimeoutException: Did not receive response in time. P2 timeout time has expired

[ep081106]

Hello pylessard:
I want to use the ETAS 582.1 to read the DTC, but i got this error:
udsoncan.exceptions.TimeoutException: Did not receive response in time. P2 timeout time has expired (timeout=1.000 sec);

this is my code:
readTheDTCBy582.txt

then I got the following error:
"D:\Software\Program Files (x86)\Python39-32\python.exe" D:\Software\Python_Scripts\PythonProject\UdsOnCan_RE300\UDSdemo_582_noUDSOnCan_V0.1_20240614.py
{'interface': 'etas', 'channel': 'ETAS://USB/ES582.1:115287/CAN:1'}
{'interface': 'etas', 'channel': 'ETAS://USB/ES582.1:115287/CAN:2'}
{'interface': 'etas', 'channel': 'ETAS://USB/VN1630:36922/CAN:2'}
{'interface': 'etas', 'channel': 'ETAS://USB/VN1630:36922/CAN:3'}
{'interface': 'etas', 'channel': 'ETAS://USB/VN1630:36922/CAN:4'}
{'interface': 'etas', 'channel': 'ETAS://VIRTUAL:VXL/CANCARD:0/CAN:1'}
{'interface': 'etas', 'channel': 'ETAS://VIRTUAL:VXL/CANCARD:0/CAN:2'}
CHANNEL_1:ETAS://USB/ES582.1:115287/CAN:1
CHANNEL_2:ETAS://USB/ES582.1:115287/CAN:2
bus:ETAS://USB/ES582.1:115287/CAN:1
Source path:... D:\Software\Python_Scripts\PythonProject\UdsOnCan_RE300\UDSdemo_582_noUDSOnCan_V0.1_20240614.py
16:34:10.038022 call 75 def read_dtcs_and_snapshots():
16:34:10.039526 line 76 with Client(conn, request_timeout=100, config=configRE300) as client: # Application layer (UDS protocol)
Source path:... D:\Software\Program Files (x86)\Python39-32\lib\site-packages\udsoncan\client.py
Starting var:.. self = <udsoncan.client.Client object at 0x04279148>
Starting var:.. conn = <udsoncan.connections.PythonIsoTpConnection object at 0x0425DAD8>
Starting var:.. config = {'exception_on_negative_response': True, 'except...server_timing': True, 'extended_data_size': None}
Starting var:.. request_timeout = 100
16:34:10.039526 call 112 def init(self, conn: BaseConnection, config: ClientConfig = default_client_config, request_timeout: Optional[float] = None):
16:34:10.040525 line 113 self.conn = conn
16:34:10.040525 line 114 self.config = cast(ClientConfig, dict(config)) # Makes a copy of given configuration
16:34:10.040525 line 117 if request_timeout is not None:
16:34:10.040525 line 118 self.config['request_timeout'] = request_timeout
16:34:10.040525 line 119 self.suppress_positive_response = Client.SuppressPositiveResponse()
16:34:10.040525 line 120 self.payload_override = Client.PayloadOverrider()
16:34:10.041525 line 121 self.last_response = None
16:34:10.041525 line 123 self.session_timing = dict(p2_server_max=None, p2_star_server_max=None)
16:34:10.041525 line 125 self.refresh_config()
16:34:10.041525 return 125 self.refresh_config()
Return value:.. None
Starting var:.. self = <udsoncan.client.Client object at 0x04279148>
16:34:10.041525 call 127 def enter(self):
16:34:10.041525 line 128 self.open()
16:34:10.044525 line 129 return self
16:34:10.045263 return 129 return self
Return value:.. <udsoncan.client.Client object at 0x04279148>
Source path:... D:\Software\Python_Scripts\PythonProject\UdsOnCan_RE300\UDSdemo_582_noUDSOnCan_V0.1_20240614.py
New var:....... client = <udsoncan.client.Client object at 0x04279148>
16:34:10.045263 line 77 response = client.get_dtc_by_status_mask(status_mask)
Source path:... D:\Software\Program Files (x86)\Python39-32\lib\site-packages\udsoncan\client.py
Starting var:.. self = <udsoncan.client.Client object at 0x04279148>
Starting var:.. status_mask = 47
16:34:10.045263 call 1243 def get_dtc_by_status_mask(self, status_mask: int) -> Optional[services.ReadDTCInformation.InterpretedResponse]:
16:34:10.045690 line 1258 return self.read_dtc_information(services.ReadDTCInformation.Subfunction.reportDTCByStatusMask, status_mask=status_mask)
2024-06-15 16:34:10 [INFO] Connection: Connection opened

2024-06-15 16:34:10 [INFO] UdsClient: ReadDTCInformation<0x19> - Sending request with subfunction "reportDTCByStatusMask" (0x02).
2024-06-15 16:34:54 [DEBUG] Connection: Sending 3 bytes : [19022f]

"it took 44s to send the message"

2024-06-15 16:34:55 [DEBUG] Connection: No data received: [TimeoutException] - Did not receive IsoTP frame from the Transport layer in time (timeout=1 sec)
2024-06-15 16:34:55 [ERROR] UdsClient: [TimeoutException] : Did not receive response in time. P2 timeout time has expired (timeout=1.000 sec)
2024-06-15 16:34:55 [INFO] Connection: Connection closed
16:34:55.656008 exception 1258 return self.read_dtc_information(services.ReadDTCInformation.Subfunction.reportDTCByStatusMask, status_mask=status_mask)
Exception:..... udsoncan.exceptions.TimeoutException: Did not re.... P2 timeout time has expired (timeout=1.000 sec)
Call ended by exception
Source path:... D:\Software\Python_Scripts\PythonProject\UdsOnCan_RE300\UDSdemo_582_noUDSOnCan_V0.1_20240614.py
16:34:55.657476 exception 77 response = client.get_dtc_by_status_mask(status_mask)
Exception:..... udsoncan.exceptions.TimeoutException: Did not re.... P2 timeout time has expired (timeout=1.000 sec)
16:34:55.657476 line 133 log_file.write('---------------------------End to read the Snapshot---------------------------' + '\n\n')
Source path:... D:\Software\Program Files (x86)\Python39-32\lib\site-packages\udsoncan\client.py
Starting var:.. self = <udsoncan.client.Client object at 0x04279148>
Starting var:.. type = <class 'udsoncan.exceptions.TimeoutException'>
Starting var:.. value = TimeoutException('Did not receive response in ti...P2 timeout time has expired (timeout=1.000 sec)')
Starting var:.. traceback = <traceback object at 0x0426B608>
16:34:55.657476 call 131 def exit(self, type, value, traceback):
16:34:55.657476 line 132 self.close()
16:34:55.669341 return 132 self.close()
Return value:.. None
Source path:... D:\Software\Python_Scripts\PythonProject\UdsOnCan_RE300\UDSdemo_582_noUDSOnCan_V0.1_20240614.py
Call ended by exception
Elapsed time: 00:00:45.631319
Traceback (most recent call last):
File "D:\Software\Python_Scripts\PythonProject\UdsOnCan_RE300\UDSdemo_582_noUDSOnCan_V0.1_20240614.py", line 136, in
read_dtcs_and_snapshots()
File "D:\Software\Program Files (x86)\Python39-32\lib\site-packages\pysnooper\tracer.py", line 305, in simple_wrapper
return function(*args, **kwargs)
File "D:\Software\Python_Scripts\PythonProject\UdsOnCan_RE300\UDSdemo_582_noUDSOnCan_V0.1_20240614.py", line 77, in read_dtcs_and_snapshots
response = client.get_dtc_by_status_mask(status_mask)
File "D:\Software\Program Files (x86)\Python39-32\lib\site-packages\udsoncan\client.py", line 1258, in get_dtc_by_status_mask
return self.read_dtc_information(services.ReadDTCInformation.Subfunction.reportDTCByStatusMask, status_mask=status_mask)
File "D:\Software\Program Files (x86)\Python39-32\lib\site-packages\udsoncan\client.py", line 176, in decorated
return func(self, *args, **kwargs)
File "D:\Software\Program Files (x86)\Python39-32\lib\site-packages\udsoncan\client.py", line 1726, in read_dtc_information
response = self.send_request(request)
File "D:\Software\Program Files (x86)\Python39-32\lib\site-packages\udsoncan\client.py", line 2187, in send_request
raise TimeoutException('Did not receive response in time. %s time has expired (timeout=%.3f sec)' %
udsoncan.exceptions.TimeoutException: Did not receive response in time. P2 timeout time has expired (timeout=1.000 sec)

could you please give me some help to fix it? thanks very much!

[pylessard]

It means that the device did not respond and there is a timeout while waiting for the response. We can see in the can log that there is indeed no response, a message with the second byte set to 99 should appear

[ep081106]

It means that the device did not respond and there is a timeout while waiting for the response. We can see in the can log that there is indeed no response, a message with the second byte set to 99 should appear

but the device works fine. I can get the DTC by using cantool/busmaster and this device.

[pylessard]

Can show me a log that works and a log that does not?
Did you mean that the library should wait 44 sec before triggering a timeout, if so you can adjust those values. Refers to the documentation

[ep081106]

Hello pylessard，
please find the log in the following picture.
I want to read the DTC by using ETAS 582(CAN FD).

[pylessard]

2 things

1. I don't see the response in the "good" log. But you also have hidden the next message with the red square.
2. PAdding byte is different. Does that make a difference for your device? CC vs 00

[ep081106]

2. my colleague told me，CC is for FD CAN. 00 is for CAN.

[pylessard]

Ok,
About padding, it really depends on what your device expects.
You can change the padding byte with a parameter. Try that.

[pylessard]

Also, I noticed that the bad log uses a different status mask. The device should respond anyway, but I wanted to point it out.

2F vs AF

[ep081106]

Hello pylessard.

1. 
   it takes a longe time to send the 1902AF.

2. and it didn't receive the response.
   

[ep081106]

maybe i found this issues. i set the fd=True. but it sent by CAN.

if i send the $19 by can.message. i can get the response

[pylessard]

Thank you for the update. Indeed this parameter might be useful to you.
https://can-isotp.readthedocs.io/en/latest/isotp/implementation.html#can_fd

Cheers

[ep081106]

Thank you for the update. Indeed this parameter might be useful to you. https://can-isotp.readthedocs.io/en/latest/isotp/implementation.html#can_fd

Cheers

Thanks for your help !
I added "can_fd" in the isotp_params and it works fine.

isotp_params = {
'stmin': 32, # 将请求发送方在连续帧之间等待时间。0 ~ 127ms或100 ~ 900ns，取值范围为0xf1 ~ 0xf9
# Will request the sender to wait 32ms between consecutive frame. 0-127ms or 100-900ns with values from 0xF1-0xF9
'blocksize': 8, # 流控帧单包大小,0为不限制
# Request the sender to send 8 consecutives frames before sending a new flow control message
'wftmax': 0, # 错误帧最大数
# Number of wait frame allowed before triggering an error
'tx_padding': 0xCC, # 空白字节CAN是0x00, FD CANi用0xCC填充
# Will pad all transmitted CAN messages with byte 0x00. None means no padding
'rx_flowcontrol_timeout': 1000, # 流控帧超时时间
# Triggers a timeout if a flow control is awaited for more than 1000 milliseconds
'rx_consecutive_frame_timeout': 1000, # 连续帧超时时间
# Triggers a timeout if a consecutive frame is awaited for more than 1000 milliseconds
'can_fd': True
}

[xuechengz0801]

It means that the device did not respond and there is a timeout while waiting for the response. We can see in the can log that there is indeed no response, a message with the second byte set to 99 should appear

but the device works fine. I can get the DTC by using cantool/busmaster and this device.

Hi,ep081106
Could you use 582.1 with filters on Pthyon-can to recieve the response only from ID 0x7CA?