Hello, The documentation for sys_mbox_new states
> Creates an empty mailbox for maximum "size" elements. Elements stored > in mailboxes are pointers. You have to define macros "_MBOX_SIZE" > in your lwipopts.h, or ignore this parameter in your implementation > and use a default size. The relevant macros are TCPIP_MBOX_SIZE DEFAULT_RAW_RECVMBOX_SIZE DEFAULT_UDP_RECVMBOX_SIZE DEFAULT_TCP_RECVMBOX_SIZE DEFAULT_ACCEPTMBOX_SIZE I have no idea how big or small each one should be o_O How to make an intelligent decision? -- Regards. _______________________________________________ lwip-users mailing list lwip-users@nongnu.org https://lists.nongnu.org/mailman/listinfo/lwip-users