Hi Kurt,
My application has another mode which tunnels data packets over the J1939 CAN bus to a specific address using PropA PGN (manufacturer defined). After some time, the driver appears to send a Connection Abort request to the destination. The destination then responds and the J1939 driver stops working. In fact, the entire system restarts.
Here's an example where my device (address 128) is sending packets to my bus monitor (address 248):
The sequence in red illustrates a successful packet transfer. The sequence in blue shows the abort request and a response from the bus monitor.
This is the reason for the initial request made by the J1939 driver (already connected):
Response reason (resources needed):
These two messages repeat several times. Eventually the bus monitor sends an additional abort request (timeout is the reason):
This caused my linux box to restart. It seems to be the reception of this last abort request that does it.
Do you have any thoughts on this? I'm using sendto and it doesn't seem to be sending any errors back to the application.
Thanks,
Rich
Hi Kurt,
My application has another mode which tunnels data packets over the J1939 CAN bus to a specific address using PropA PGN (manufacturer defined). After some time, the driver appears to send a Connection Abort request to the destination. The destination then responds and the J1939 driver stops working. In fact, the entire system restarts.
Here's an example where my device (address 128) is sending packets to my bus monitor (address 248):
The sequence in red illustrates a successful packet transfer. The sequence in blue shows the abort request and a response from the bus monitor.
This is the reason for the initial request made by the J1939 driver (already connected):
Response reason (resources needed):
These two messages repeat several times. Eventually the bus monitor sends an additional abort request (timeout is the reason):
This caused my linux box to restart. It seems to be the reception of this last abort request that does it.
Do you have any thoughts on this? I'm using sendto and it doesn't seem to be sending any errors back to the application.
Thanks,
Rich