Hello Ranran, When I have experienced an "exception error of type unaligned access", this has been due to a stack over flow. Try increasing the amount of ram you have allocated to the stack. Regards Stuart
-- Sent from: http://lwip.100.n7.nabble.com/lwip-users-f3.html _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users