/** ****************************************************************************** * @file lwipopts.h * @author MCD Application Team * @version V1.1.0 * @date 07-October-2011 * @brief lwIP Options Configuration. * This file is based on Utilities\lwip_v1.3.2\src\include\lwip\opt.h * and contains the lwIP configuration for the STM32F2x7 demonstration. ****************************************************************************** * @attention * * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS. * *

© COPYRIGHT 2011 STMicroelectronics

****************************************************************************** */ #ifndef __LWIPOPTS_H__ #define __LWIPOPTS_H__ #include "stdlib.h" #include "Main.h" /** * SYS_LIGHTWEIGHT_PROT==1: if you want inter-task protection for certain * critical regions during buffer allocation, deallocation and memory * allocation and deallocation. */ #define SYS_LIGHTWEIGHT_PROT 1 #define ETHARP_TRUST_IP_MAC 0 #define IP_REASSEMBLY 0 #define IP_FRAG 0 #define ARP_QUEUEING 0 #define TCP_LISTEN_BACKLOG 1 #define LWIP_DNS 1 #define LWIP_NETIF_STATUS_CALLBACK 1 #define IP_SOF_BROADCAST 1 #define IP_SOF_BROADCAST_RECV 1 #define LWIP_IGMP 1 #define SO_REUSE 1 #define LWIP_NETIF_HOSTNAME 1 /** * NO_SYS==1: Provides VERY minimal functionality. Otherwise, * use lwIP facilities. */ #define NO_SYS 0 /* ---------- Memory options ---------- */ /* MEM_ALIGNMENT: should be set to the alignment of the CPU for which lwIP is compiled. 4 byte alignment -> define MEM_ALIGNMENT to 4, 2 byte alignment -> define MEM_ALIGNMENT to 2. */ #define MEM_ALIGNMENT 4 /* MEM_SIZE: the size of the heap memory. If the application will send a lot of data that needs to be copied, this should be set high. */ #define MEM_SIZE (14 * 1024) /* MEMP_NUM_PBUF: the number of memp struct pbufs. prevoiusly this was high as we understood that the pBuf buffers are allocated from the LwIP heap (MEM_SIZE). But after reducing PBUF_POOL_SIZE to 6 the TCP stack started to get slow and hanged. We found out that the values were wrong and pBuf are allocated from the PBUF_POOL and its size is PBUF_POOL_SIZE * PBUF_POOL_BUFSIZE */ #define MEMP_NUM_PBUF 25 /* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One per active UDP "connection". */ #define MEMP_NUM_UDP_PCB 10 /* MEMP_NUM_TCP_PCB: the number of simulatenously active TCP connections. */ #define MEMP_NUM_TCP_PCB 20 /* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections. */ #define MEMP_NUM_TCP_PCB_LISTEN 15 /* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts. */ #define MEMP_NUM_SYS_TIMEOUT 15 /* ---------- TCP options ---------- */ #define LWIP_TCP 1 #define TCP_TTL 255 /* Controls if TCP should queue segments that arrive out of order. Define to 0 if your device is low on memory. */ #define TCP_QUEUE_OOSEQ 0 /* TCP Maximum segment size. */ //#define TCP_MSS (1500 - 40) /* TCP_MSS = (Ethernet MTU - IP header size - TCP header size) */ #define TCP_MSS 536 /* TCP sender buffer space (bytes). */ // // When TCP_SND_BUF was (4*TCP_MSS) we had problems with memory // alocation. After reducing it to (3*TCP_MSS) we stopped getting // memory allocation errors. After more testing with memory allocation // I have reduced it to 2 * MSS and now it look OK with no memory alloocation // problems !!! // #define TCP_SND_BUF (2 * TCP_MSS) /* TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work. */ #define TCP_SND_QUEUELEN (6 * (TCP_SND_BUF)/(TCP_MSS)) /* TCP receive window. */ #define TCP_WND (4 * TCP_MSS) /* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. */ //#define MEMP_NUM_TCP_SEG 20 #define MEMP_NUM_TCP_SEG TCP_SND_QUEUELEN // 20 // This was previosly 20 and cause a MEM_ERR it was changed // to BE THE SAME SIZE AS TCP_SND_QUEUELEN /* ---------- Pbuf options ---------- */ /* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */ #define PBUF_POOL_SIZE MEMP_NUM_PBUF /* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */ #define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS + 40 + PBUF_LINK_HLEN) /* ---------- Netbuf options ---------- */ /* MEMP_NUM_NETBUF: the number of struct netbufs.*/ #define MEMP_NUM_NETBUF 6 /* MEMP_NUM_NETCONN: the number of struct netconns.*/ #define MEMP_NUM_NETCONN 6 /* ---------- ICMP options ---------- */ #define LWIP_ICMP 1 /* ---------- DHCP options ---------- */ /* Define LWIP_DHCP to 1 if you want DHCP configuration of interfaces. */ #define LWIP_DHCP 1 #define LWIP_NETIF_LINK_CALLBACK 1 /* ---------- UDP options ---------- */ #define LWIP_UDP 1 #define UDP_TTL 255 /* ---------- Statistics options ---------- */ #define LWIP_STATS 0 #define LWIP_PROVIDE_ERRNO 1 /* -------------------------------------- ---------- Checksum options ---------- -------------------------------------- */ /* The STM32F2x7 allows computing and verifying the IP, UDP, TCP and ICMP checksums by hardware: - To use this feature let the following define uncommented. - To disable it and process by CPU comment the the checksum. !!! for some reason uncommenting this causes PING not to work ??? */ //#define CHECKSUM_BY_HARDWARE #ifdef CHECKSUM_BY_HARDWARE /* CHECKSUM_GEN_IP==0: Generate checksums by hardware for outgoing IP packets.*/ #define CHECKSUM_GEN_IP 0 /* CHECKSUM_GEN_UDP==0: Generate checksums by hardware for outgoing UDP packets.*/ #define CHECKSUM_GEN_UDP 0 /* CHECKSUM_GEN_TCP==0: Generate checksums by hardware for outgoing TCP packets.*/ #define CHECKSUM_GEN_TCP 0 /* CHECKSUM_CHECK_IP==0: Check checksums by hardware for incoming IP packets.*/ #define CHECKSUM_CHECK_IP 0 /* CHECKSUM_CHECK_UDP==0: Check checksums by hardware for incoming UDP packets.*/ #define CHECKSUM_CHECK_UDP 0 /* CHECKSUM_CHECK_TCP==0: Check checksums by hardware for incoming TCP packets.*/ #define CHECKSUM_CHECK_TCP 0 #else /* CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets.*/ #define CHECKSUM_GEN_IP 1 /* CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets.*/ #define CHECKSUM_GEN_UDP 1 /* CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets.*/ #define CHECKSUM_GEN_TCP 1 /* CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets.*/ #define CHECKSUM_CHECK_IP 1 /* CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets.*/ #define CHECKSUM_CHECK_UDP 1 /* CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets.*/ #define CHECKSUM_CHECK_TCP 1 #endif /* ---------------------------------------------- ---------- Sequential layer options ---------- ---------------------------------------------- */ /** * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c) */ #define LWIP_NETCONN 1 /* ------------------------------------ ---------- Socket options ---------- ------------------------------------ */ /** * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c) */ #define LWIP_SOCKET 1 /* ----------------------------------- ---------- DEBUG options ---------- ----------------------------------- */ #define LWIP_DEBUG 0 /** * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments. */ #define TCP_SYNMAXRTX 4 /* --------------------------------- ---------- RAW options ---------- --------------------------------- */ /** * LWIP_RAW==1: Enable application layer to hook into the IP layer itself. */ #define LWIP_RAW 1 /** * NO_SYS_NO_TIMERS==1: Drop support for sys_timeout when NO_SYS==1 * Mainly for compatibility to old versions. */ #define NO_SYS_NO_TIMERS 0 /* --------------------------------- ---------- OS options ---------- --------------------------------- !!!! for some reason when I triad moving the following definitions to the head of the file TCP was not functioning ???? */ // this is a must if we use IGMP #if ((LWIP_IGMP == 1) || (LWIP_DHCP == 1)) #define LWIP_RAND() ((u32)rand()) #endif #define TCPIP_THREAD_NAME "tcp/ip" #define TCPIP_THREAD_STACKSIZE 2500 #define TCPIP_MBOX_SIZE 5 #define DEFAULT_UDP_RECVMBOX_SIZE 2000 #define DEFAULT_TCP_RECVMBOX_SIZE 2000 #define DEFAULT_ACCEPTMBOX_SIZE 2000 #define DEFAULT_THREAD_STACKSIZE 1000 #define TCPIP_THREAD_PRIO mainTCP_TASK_PRIORITY #endif /* __LWIPOPTS_H__ */ /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/