About a long time problem.

[uyouu]

Hi,
I wrote an app to send an recieve pcan basic message with c# code, and when i run this app for a long time 580 hours, i saw the log is only send message,response message function was broke ,I want know the possible reasons about this , log file like this :

Code: Select all

R  05:45:09.408   0x490  00  00  47  E0  01  54  5D  C4  
R  05:45:09.410   0x491  00  00  A0  00  00  00  00  00  
S  05:45:09.445   0x4E0  AA  AA  AA  AA  5D  C0  20  AA  
S  05:45:09.456   0x7E2  03  22  08  5C  AA  AA  AA  AA  
R  05:45:09.459   0x7EA  05  62  08  5C  0A  6B  AA  AA  
S  05:45:09.564   0x7E2  02  19  03  AA  AA  AA  AA  AA  
S  05:45:09.671   0x7E2  03  22  08  57  AA  AA  AA  AA  
S  05:45:09.785   0x7E2  03  22  08  FF  AA  AA  AA  AA  
S  05:45:09.893   0x7E2  03  22  08  FF  AA  AA  AA  AA  
S  05:45:10.001   0x7E2  03  22  08  57  AA  AA  AA  AA  
S  05:45:10.109   0x7E2  03  22  08  7F  AA  AA  AA  AA  
S  05:45:10.223   0x7E2  03  22  08  80  AA  AA  AA  AA  
S  05:45:10.326   0x7E2  03  22  08  5C  AA  AA  AA  AA

After 05:45:09.564 pcan box only send 0x7E2 message and no response message like 0x7EA, 0x490

[K.Wagner]

Hello,

we would need a little more information ... and clarifications.

1. Which operating system and platform are you using?
2. Which version of PCAN-Basic are you using?
3. Are you using another API like PCAN-ISO-TP, PCAN-UDS, or PCAN-OBDII?
4. What do you mean with "PCAN box"? do you mean a PCAN-USB device?
5. What do you mean with "response message function broke"? do you mean, your C# function for send?
6. Can you debug your function and check why the message is not being sent (return error code)?
7. Who is the other CAN participant in your scenario? Another app? an ECU?
8. Are messages of your app being triggered by reading other messages? e.g. are you using a high layer protocol for transmission like ISO15765?

With this log data is difficult to say something, but it seems to me like after a time (in your case, 24 days?) some stimulus from the other CAN participant is failing.