LwIP_TCP_Echo_Server
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Outline
#define __LWIPOPTS_H__
#define NO_SYS
#define SYS_LIGHTWEIGHT_PROT
---------- Memory options
#define MEM_ALIGNMENT
#define MEM_SIZE
#define MEMP_NUM_PBUF
#define MEMP_NUM_UDP_PCB
#define MEMP_NUM_TCP_PCB
#define MEMP_NUM_TCP_PCB_LISTEN
#define MEMP_NUM_TCP_SEG
#define MEMP_NUM_SYS_TIMEOUT
---------- Pbuf options
#define PBUF_POOL_SIZE
#define PBUF_POOL_BUFSIZE
---------- TCP options
#define LWIP_TCP
#define TCP_TTL
#define TCP_QUEUE_OOSEQ
#define TCP_MSS
#define TCP_SND_BUF
#define TCP_SND_QUEUELEN
#define TCP_WND
---------- ICMP options
#define LWIP_ICMP
---------- DHCP options
#define LWIP_DHCP
---------- UDP options
#define LWIP_UDP
#define UDP_TTL
---------- Statistics options
#define LWIP_STATS
#define LWIP_NETIF_LINK_CALLBACK
#define CHECKSUM_BY_HARDWARE
#define CHECKSUM_GEN_IP
#define CHECKSUM_GEN_UDP
#define CHECKSUM_GEN_TCP
#define CHECKSUM_CHECK_IP
#define CHECKSUM_CHECK_UDP
#define CHECKSUM_CHECK_TCP
#define CHECKSUM_GEN_ICMP
#define CHECKSUM_GEN_IP
#define CHECKSUM_GEN_UDP
#define CHECKSUM_GEN_TCP
#define CHECKSUM_CHECK_IP
#define CHECKSUM_CHECK_UDP
#define CHECKSUM_CHECK_TCP
#define CHECKSUM_GEN_ICMP
#define LWIP_NETCONN
#define LWIP_SOCKET
Files
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SourceVuSTM32 Libraries and SamplesLwIP_TCP_Echo_ServerInc/lwipopts.h
 
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/** ****************************************************************************** * @file LwIP/LwIP_TCP_Echo_Server/Inc/lwipopts.h * @author MCD Application Team * @brief lwIP Options Configuration. ****************************************************************************** * @attention * * Copyright (c) 2017 STMicroelectronics. * All rights reserved. * * This software is licensed under terms that can be found in the LICENSE file * in the root directory of this software component. * If no LICENSE file comes with this software, it is provided AS-IS. * ****************************************************************************** *//* ... */ #ifndef __LWIPOPTS_H__ #define __LWIPOPTS_H__ /** * NO_SYS==1: Provides VERY minimal functionality. Otherwise, * use lwIP facilities. *//* ... */ #define NO_SYS 1 /** * SYS_LIGHTWEIGHT_PROT==0: disable inter-task protection (and task-vs-interrupt * protection) for certain critical regions during buffer allocation, deallocation * and memory allocation and deallocation. *//* ... */ #define SYS_LIGHTWEIGHT_PROT 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 (10*1024) /* MEMP_NUM_PBUF: the number of memp struct pbufs. If the application sends a lot of data out of ROM (or other static memory), this should be set high. *//* ... */ #define MEMP_NUM_PBUF 10 /* MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One per active UDP "connection". *//* ... */ #define MEMP_NUM_UDP_PCB 6 /* MEMP_NUM_TCP_PCB: the number of simultaneously active TCP connections. *//* ... */ #define MEMP_NUM_TCP_PCB 10 /* MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections. *//* ... */ #define MEMP_NUM_TCP_PCB_LISTEN 5 /* MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. *//* ... */ #define MEMP_NUM_TCP_SEG 8 /* MEMP_NUM_SYS_TIMEOUT: the number of simulateously active timeouts. *//* ... */ #define MEMP_NUM_SYS_TIMEOUT 10 ---------- Memory options /* ---------- Pbuf options ---------- */ /* PBUF_POOL_SIZE: the number of buffers in the pbuf pool. */ #define PBUF_POOL_SIZE 8 /* PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. */ #define PBUF_POOL_BUFSIZE 512 ---------- Pbuf options /* ---------- 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) */ /* TCP sender buffer space (bytes). */ #define TCP_SND_BUF (4*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 (2* TCP_SND_BUF/TCP_MSS) /* TCP receive window. */ #define TCP_WND (2*TCP_MSS) ---------- TCP options /* ---------- ICMP options ---------- */ #define LWIP_ICMP 1 ---------- ICMP options /* ---------- DHCP options ---------- */ #define LWIP_DHCP 1 ---------- DHCP options /* ---------- UDP options ---------- */ #define LWIP_UDP 1 #define UDP_TTL 255 ---------- UDP options /* ---------- Statistics options ---------- */ #define LWIP_STATS 0 ---------- Statistics options /* ---------- link callback options ---------- */ /* LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface * whenever the link changes (i.e., link down) *//* ... */ #define LWIP_NETIF_LINK_CALLBACK 1 /* -------------------------------------- ---------- Checksum options ---------- -------------------------------------- *//* ... */ /* The STM32F4xx 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. *//* ... */ #define CHECKSUM_BY_HARDWARE 27 defines #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 /* CHECKSUM_CHECK_ICMP==0: Check checksums by hardware for incoming ICMP packets.*/ #define CHECKSUM_GEN_ICMP 0 7 defines#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 /* CHECKSUM_CHECK_ICMP==1: Check checksums by hardware for incoming ICMP packets.*/ #define CHECKSUM_GEN_ICMP 1 7 defines#endif/* ... */ /* ---------------------------------------------- ---------- Sequential layer options ---------- ---------------------------------------------- *//* ... */ /** * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c) *//* ... */ #define LWIP_NETCONN 0 /* ------------------------------------ ---------- Socket options ---------- ------------------------------------ *//* ... */ /** * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c) *//* ... */ #define LWIP_SOCKET 0 /* ... */ #endif /* __LWIPOPTS_H__ */
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