stm32f407 lwip2.0.2 ping不通

发布于 2018-03-22 17:09:16 浏览：6332 订阅该版

救助大佬，这是个情况是我的lwip 没初始化好，还是我的phy没初始化好。

这是启动部分，
```c
void rt_init_thread_entry(void* parameter)
{
    /* GDB STUB */
#ifdef RT_USING_GDB
    gdb_set_device("uart6");
    gdb_start();
#endif
 
/* LwIP Initialization */
#ifdef RT_USING_LWIP
#include <lwip/sys.h> 
#include "ethernetif.h"
//#include "stm32f4xx_eth.h"
#include "dm9000a.h"

extern void lwip_sys_init(void);

rt_hw_dm9000_init();

/* init lwip system */
    lwip_sys_init();
    rt_kprintf("TCP/IP initialized!<br>"); 
 
#endif

#ifdef RT_USING_FINSH
    /* init finsh */
    finsh_system_init();
#endif
}
```

这是Lwip 的初始化部分
```c
/**
 * LwIP system initialization
 */
extern int eth_system_device_init_private(void);
int lwip_system_init(void)
{
    rt_err_t rc;
    struct rt_semaphore done_sem;
    
    eth_system_device_init_private();

/* set default netif to NULL */
    netif_default = RT_NULL;

rc = rt_sem_init(&done_sem, "done", 0, RT_IPC_FLAG_FIFO);

if (rc != RT_EOK)
    {
        LWIP_ASSERT("Failed to create semaphore", 0);

return -1;
    }

tcpip_init(tcpip_init_done_callback, (void *)&done_sem);

/* waiting for initialization done */
    if (rt_sem_take(&done_sem, RT_WAITING_FOREVER) != RT_EOK)
    {
        rt_sem_detach(&done_sem);

return -1;
    }
    rt_sem_detach(&done_sem);

/* set default ip address */
#if !LWIP_DHCP
    if (netif_default != RT_NULL)
    {
        struct ip4_addr ipaddr, netmask, gw;

ipaddr.addr = inet_addr(RT_LWIP_IPADDR);
        gw.addr = inet_addr(RT_LWIP_GWADDR);
        netmask.addr = inet_addr(RT_LWIP_MSKADDR);

netifapi_netif_set_addr(netif_default, &ipaddr, &netmask, &gw);
        
    }
#endif
    rt_kprintf("lwIP-%d.%d.%d initialized!<br>", LWIP_VERSION_MAJOR, LWIP_VERSION_MINOR, LWIP_VERSION_REVISION);

return 0;
}
rt_hw_dm9000_init(); 
```

PHY用的是DM9000A，
参考的103的驱动改装的407版本，改了引脚和时钟，还有关于FSMC的配置，能读到芯片ID

有大佬遇到类似的问题吗？

![1521709895(1).jpg](/uploads/201803/22/171221ax5sznv71yisih7r.jpg)