Hi, I'm experiencing problems when trying to read out ECU parameters using istpsend when the response exceeds 8 bytes: In one terminal, I run isotpdump -s 00000680 -d 00000780 -c -ta can0 In another terminal, I run echo 22 F1 95 | isotpsend -s 00000680 -d 00000780 can0 -p 0x00 In the first terminal, I receive only the FF, but no FC frame is sent (expected is a 11-byte response). If I turn around the communication direction and run isotpsend -s 00000680 -d 0000780 can0 -D 255, the target ECU answers correctly by sending the expected FC frame. I would expect that isotpsend takes care of sending the FC frame in the first example as well to receive the full response - am I doing something wrong? Any help would be highly appreciated! Best regards, Marvin Ludersdorfer
