STM32F107VCT6 开启lwip 后ZI_DATA 过大，导致No Memory

发布于 2019-08-21 20:56:07 浏览：2798 订阅该版

10 个回答

WillianChan 2019-08-21

ddk2006 2019-08-21

这家伙很懒，什么也没写！

whj467467222 认证专家 2019-08-22

开源，分享，交流，共同进步

我以前玩过这个MCU的LWIP，没有过多的深入了解，看了我以前的工程（MODBUS TCP）编译出来没有你的文件大。[attach]10265[/attach]

贴上rtconfig.h的宏定义部分，仅供参考

```
/* SECTION: lwip, a lighwight TCP/IP protocol stack */
#define RT_USING_LWIP
/* LwIP uses RT-Thread Memory Management */
#define RT_LWIP_USING_RT_MEM
/* Enable ICMP protocol*/
#define RT_LWIP_ICMP
/* Enable UDP protocol*/
#define RT_LWIP_UDP
/* Enable TCP protocol*/
#define RT_LWIP_TCP
/* Enable DNS */
#define RT_LWIP_DNS

/* the number of simulatenously active TCP connections*/
#define RT_LWIP_TCP_PCB_NUM	5

/* ip address of target*/
#define RT_LWIP_IPADDR0	192
#define RT_LWIP_IPADDR1	168
#define RT_LWIP_IPADDR2	1
#define RT_LWIP_IPADDR3	30

/* gateway address of target*/
#define RT_LWIP_GWADDR0	192
#define RT_LWIP_GWADDR1	168
#define RT_LWIP_GWADDR2	1
#define RT_LWIP_GWADDR3	1

/* mask address of target*/
#define RT_LWIP_MSKADDR0	255
#define RT_LWIP_MSKADDR1	255
#define RT_LWIP_MSKADDR2	255
#define RT_LWIP_MSKADDR3	0

/* tcp thread options */
#define RT_LWIP_TCPTHREAD_PRIORITY		12
#define RT_LWIP_TCPTHREAD_MBOX_SIZE		4
#define RT_LWIP_TCPTHREAD_STACKSIZE		1024

/* ethernet if thread options */
#define RT_LWIP_ETHTHREAD_PRIORITY		15
#define RT_LWIP_ETHTHREAD_MBOX_SIZE		4
#define RT_LWIP_ETHTHREAD_STACKSIZE		512

/* TCP sender buffer space */
#define RT_LWIP_TCP_SND_BUF	8192
/* TCP receive window. */
#define RT_LWIP_TCP_WND		8192

#define CHECKSUM_CHECK_TCP              0
#define CHECKSUM_CHECK_IP               0
#define CHECKSUM_CHECK_UDP              0

#define CHECKSUM_GEN_TCP                0
#define CHECKSUM_GEN_IP                 0
#define CHECKSUM_GEN_UDP                0
```