MQX Software Solutions中的主题 Re: Can't Go From Dynamic IP to Static IP

Can't Go From Dynamic IP to Static IP

kackle123 — Mon, 12 Sep 2016 21:10:38 GMT

I have a question very similar to this unanswered question:

https://community.nxp.com/thread/315763

I am using MQX 4.2.0.1 on a K64. Using an embedded web page, I tell the K64 to go from its static IP address, to a dynamic, and then back to a static. The program uses the ipcfg functions, but won't go from a dynamic address back to a static address. The ipcfg_unbind() constantly returns 7425 (1D01 hex), even if I call it repeatedly. When debugging deeper, there seems to be some semaphore problem within ipcfg.c. Is this something someone can recreate on their end?

Re: Can't Go From Dynamic IP to Static IP

danielchen — Tue, 13 Sep 2016 04:26:46 GMT

I did a quick test with shell commands, with demo

C:\Freescale\Freescale_MQX_4_2\rtcs\examples\shell\build\iar\rtcs_shell_frdmk64f

My test result is it can go from dynamic ip to static ip in my side.

Could you please double check it? Please see the below picutre

Regards

Daniel

Re: Can't Go From Dynamic IP to Static IP

kackle123 — Mon, 19 Sep 2016 18:11:07 GMT

Thank you; I will try it and post my results here.

Re: Can't Go From Dynamic IP to Static IP

kackle123 — Wed, 21 Sep 2016 20:03:31 GMT

I tried the MQX shell example project. It worked. I noticed it uses ipcfg_bind_dhcp_wait(). My code was trying to use ipcfg_bind_dhcp() instead; can you confirm that ipcfg_bind_dhcp() works when using ipcfg_bind_staticip() later? (Code snippet attached.)

Re: Can't Go From Dynamic IP to Static IP

danielchen — Thu, 22 Sep 2016 03:25:47 GMT

ipcfg_bind_dhcp : Binds Ethernet device to networking using DHCP protocol.

ipcfg_bind_dhcp_wait : Bind Ethernet device to network using a DHCP protocol, blocking mode. This function will not return until the process is finished or error occures.

As the DHCP address resolving make take some time. I suggest you using ipcfg_bind_dhcp_wait().

Regards

Daniel

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Re: Can't Go From Dynamic IP to Static IP

kackle123 — Mon, 26 Sep 2016 20:42:55 GMT

I put ipcfg_bind_dhcp_wait() in a separate task to avoid code delays; and it worked.

I'm note sure why the ipcfg_unbind() constantly returns 7425 (1D01 hex) in my above code, but I'm under a project deadline so I have to move on. Thank you for your replies.