topic Re: RTCS TCP/IP in MQX Software Solutions

RTCS TCP/IP

wyao75 — Mon, 13 Jul 2015 03:01:52 GMT

Hi all,

I use K60 and MQX 4.1

I'd like to use socket receive TCP/IP packet every 100ms.

computer as server (device A)and k60 as client(device B).

Now K60 can receive data every 100ms .

My question is if device A disconnect and maybe 2mins later it reconnect, but the k60 can't receive data. I try to check the connection state if connection fail it will reconnect, but still not work.

socket_init();

uint16_t rlen=sizeof(raddr);

i=connect(sock_list[0],(struct sockaddr *)&raddr,rlen);

while(1)

{

k=RTCS_selectall(100);

if (i!= RTCS_OK)

{

shutdown(sock_list[0],FLAG_ABORT_CONNECTION);

socket_init();

i=connect(sock_list[0],(struct sockaddr *)&raddr,rlen);

}

recv(sock_list[0],buffer_tcp,30,0);

}

Re: RTCS TCP/IP

Carlos_Musich — Tue, 14 Jul 2015 19:59:28 GMT

Hi!

You can use the following instruction to check the link status: result = ipcfg_get_link_active(BSP_DEFAULT_ENET_DEVICE);

Then shutdown socket and don't reconnect until link is up again: while(!ipcfg_get_link_active(BSP_DEFAULT_ENET_DEVICE)) {};

Regards,

Carlos

Re: RTCS TCP/IP

wyao75 — Mon, 20 Jul 2015 13:53:06 GMT

I want to know how to check the state of TCP/IP connection rather than the state of Ethernet link.

I use computer as server and k60 as client .

In TCP/IP protocol, computer(server) should listen first and then k60 (client) connect it.

I want to know if k60 connect first and the computer listen after 2 min. k60 how to reconnect?

Re: RTCS TCP/IP

Carlos_Musich — Wed, 22 Jul 2015 19:42:44 GMT

Hi,

You can use Connection Timeout option.

To set this option you need function setsockopt() and the option parameter is OPT_CONNECT_TIMEOUT.

You can find it documented in MQX_RTCS_User_Guide.pdf. It is located in installation path:

C:\Freescale\Freescale_MQX_4_2\doc\rtcs

Regards,

Carlos