XCPsim: Invalid counter in XCP transport layer header about xcplite

[RainerZ]

Hello,
I created a experimantal branch V5_CANape14 with modifications for compatibility to CANape 14.
So far the issues I found in C_Demo project were:

• A2L V1.71 is not supported -> added a quick hack downgrade to 1.70
• GET_DAQ_CLOCK_MULTICAST is mandatory -> turned it on
• Created a CANape14 project in ./CANape14/
  Could not reproduce the transport layer counter issue.
  Did not try CPP_Demo. It makes use of A2L 1.71.

Please note thar the TransportLayer counter is used to detect data loss when using UDP as transport layer.

[Z-ZWBY]

Hello@balagopa,
which version do you run?V5?
Does the Canpe14 have the configuration the TIME_CORRELATION_GETDAQCLOCK in the path 'DeviceManager/Protocol/Eventlist/ExpertSetting'？

[balagopa]

CANape ver 14 and Protocol type XCP5(dlc+ctr REtransmit). In that path 'DeviceManager/Protocol/Eventlist/ExpertSetting' we didn't have configured TIME_CORRELATION_GETDAQCLOCK

[balagopa]

I done this step, here after we able to see the Error XCPsim: Invalid counter in XCP transport layer header:

[RainerZ]

The "Invalid Counter" usually error indicates lost UDP packets, which happens at the limits of performance.
But this should not be the reason, because the data rate in the C_Demo example is pretty low (300KByte/s) by default and CANape and XCPlite are be able to handle 100-600 MByte/s depending on PC and network performance.

Does your yellow dt measurement signal (this is the measured ecuTask() cycle time) show a constant 2ms cycle time?
Try to increase ecuPar.cycleTimeUs and see what happens.
Currently it seems to me, that the behaviour of the Windows Sleep() function changed with Windows 11.

[balagopa]

While trying to start the measurement we able to see ERROR 22h CRC out of range and parallel in write comment window showing Realtime support synchronization: None. Can you please help me out this

[RainerZ]

Could you please provide a trace window XCP log, to see which XCP command returns this error and why.

[RainerZ]

"Realtime support synchronization: None" just means, that CANape software timesyncronisation is disabled.
Usually, you would enable time synchronisation of XCP timestamps to PC clock in Tools/Options/Miscellaneous/DeviceDriver/ Synchronization Software

[RainerZ]

Closed