how to use lwip_mpc5748g

[gangzhou]

Hi,

I am using s32 design studio for NXP #mpc5748g enet dev kit. Here LWIP example code "lwip_mpc5748g" integrated with freertos by default.But ,when  ping the ip address of MPC5748G dev kit,it dose not reply.I want to know how to use this example.How to config the board as client or server？

[martin_kovar]

Hello,

root cause of this issue is that LwIP example cannot handle ARP protocol, so you must add MAC address of the board manually into PC ARP cache.

Run command line as an administrator and use the command shown in the figure below.

Addresses used in the figure are the default ones in the lwip project.

Regards,

Martin

[H-chips]

Hello, may I ask why I can't ping the MAC address after manually adding it to the arp cache of the pc。

[gangzhou]

thank you for your reply.if I want to use the devkit board as  server with example code "lwip_mpc5748g" what,should I do? 

[martin_kovar]

Hello,

it depends on what server do you mean. Here are possibilities, which LwIP provides

Operating systems that implement the lwIP TCP/IP stack may provide a range of supporting clients and servers at the application layer. Such as an IPv4 DHCP (Dynamic Host Configuration Protocol) client or IPv4 Link-local addresses (aka. AutoIP). Specialized raw API applications include: an HTTP server, a SNTP client, a SMTP client, a NetBIOS nameserver, a mDNS responder, a MQTT client and a TFTP server.

But all of this implementation must be done on your own. There is no example available.

Regards,

Martin

[gangzhou]

Tkank you!