Hi LWIP Users I finaly got the lwip stack working on my device. The problem was that i didnt set memory options well ,too less memory. My application using the modbus tcp protocol and after a while I get an Retransmission try (4 Times) from my PC to the device and than my device stops to response to the pc. This happends when in various times sometimes after 1 hour sometimes after 10 min and sometimes after 30seconds. Can this still be an configuration error of the stack? Still to less memory?
My device drive end up in a can_send loop of the ethernet driver. Here a trace from wireshark 152950 8727.023524 192.168.1.1 192.168.1.222 Modbus/TCP 66 query [ 1 pkt(s)]: trans: 90; unit: 0, func: 6: Write single register. 152951 8727.325545 192.168.1.1 192.168.1.222 Modbus/TCP 66 [TCP Retransmission] query [ 1 pkt(s)]: trans: 90; unit: 0, func: 6: Write single register. 152952 8727.922536 192.168.1.1 192.168.1.222 Modbus/TCP 66 [TCP Retransmission] query [ 1 pkt(s)]: trans: 90; unit: 0, func: 6: Write single register. 152954 8728.066608 192.168.1.1 192.168.1.222 TCP 54 51651 > asa-appl-proto [FIN, ACK] Seq=1081 Ack=1069 Win=63172 Len=0 152956 8729.129649 192.168.1.1 192.168.1.222 Modbus/TCP 66 [TCP Retransmission] query [ 1 pkt(s)]: trans: 90; unit: 0, func: 6: Write single register. Any Suggestions? Regards Fred -- View this message in context: http://old.nabble.com/Retransmission-try-no-response-tp33970148p33970148.html Sent from the lwip-users mailing list archive at Nabble.com. _______________________________________________ lwip-users mailing list [email protected] https://lists.nongnu.org/mailman/listinfo/lwip-users
