RE: [lwip-users] Problem with use DHCP and IP fixed (SOLVED)

[Diecol]

No problem, 

I solved the problem, It was almost done I just modificate something and now
it works fine..

Thanks again

Best Regards

Diego



Andrew Foster-3 wrote:
> 
> Diego,
> 
> I apologize. I should have dug a little deeper into the stack. The files 
> I was referencing were an abstraction layer added by my silicon 
> manufacturer. If you are curious how they implemented the functionality 
> you can download the Stellaris family SDK from Luminary. 
> 
> Sorry for the confusion.
> 
> Andrew
> 
> -----Original Message-----
> From: Diecol [mailto:address@hidden 
> Sent: Tuesday, December 21, 2010 09:06
> To: address@hidden
> Subject: RE: [lwip-users] Problem with use DHCP and IP fixed
> 
> 
> Thanks Andrew, 
> 
> But I'm using the lwip 1.4 version, this one don't have the lwiplib.h 
> file
> ;(
> 
> I dont know what to do anymore..
> I remember that with uIP I didnt #Define the DHCP!
> I used to use like that in my .h:
> #ifdef UIP_DHCP_on
>   static int DHCP_ON = 1;
> #else
>   static int DHCP_ON = 0;
> #endif
> 
> And in the code I just changed the variable..
> DHCP_ON = 1; or DHCP_ON = 0;
> and restart the uIP!
> 
> But in this case (lwip), if I create the DHCP variable like that:  
> static int DHCP_ON = 1;
> I don't know why, but I can't change it in code.
> When I try to do like this: DHCP_ON = 1; appear this msg:
> lvalue required as left operand of assigment ;/
> 
> I already try a lot of things, Im not having any more ideas.. 
> anyone?
> 
> Thanks..
> 
> Regards
> 
> Diego
> 
> 
>  
> 
> 
> 
> Andrew Foster-3 wrote:
>> 
>> Diecol,
>> 
>> If I'm not mistaken you will need to leave both:
>> 
>>   #define LWIP_DHCP  1
>>   #define LWIP_UDP   1
>> 
>> This will allow you to make a runtime decision on what IP mode the 
> user 
>> has enabled. Keep in mind, the underlying protocol for receiving DHCP 
>> packets is handled by the UDP portion of the lwIP stack (or at least 
>> that is the way I remember it). 
>> 
>> As for configuring your interface at runtime, look into lwiplib.h. It 
>> contains the structure, definitions and prototypes to configure your 
>> network interface for both modes.
>> 
>> Once you have assigned the proper parameters to the structure, you can 
> 
>> call lwIPLib_Init(lwIPLib_IPInfo_t *pInitParams).
>> 
>> If you need to reconfigure call:
>> lwIPLib_NetworkConfigChange(
>>  unsigned long ulIPAddr,  // the new IP address to be used (static)
>>  unsigned long ulNetMask, // the new network mask to be used (static)
>>  unsigned long ulGWAddr,  // the new Gateway address to be used 
> (static)
>>  unsigned long ulIPMode)  // the IP Address Mode
>> 
>> Hope this helps,
>> 
>> Andrew 
>> 
>> 
>> -----Original Message-----
>> From: Diecol [mailto:address@hidden 
>> Sent: Monday, December 20, 2010 13:11
>> To: address@hidden
>> Subject: [lwip-users] Problem with use DHCP and IP fixed
>> 
>> 
>> Hello there, 
>> 
>> I'm working with lwip on at91sam9260 board and I'm using Eclipse 
>> platform.
>> well, 
>> 
>> When I set at lwipopts.h like this:
>>              #define LWIP_DHCP  1
>>              #define LWIP_UDP    1
>> DHCP works fine..
>> And when I set like this:
>>              #define LWIP_DHCP  0
>>              #define LWIP_UDP    0
>> My Ip fixed works fine too..
>> 
>> But in my code, users can changed from ip fixed to dhcp on and 
>> contrariwise!
>> 
>> When I used uIP protocol, I just did like this:
>> 
>> uip_ipaddr_t ipaddr;
>> uip_ipaddr(ipaddr, 0, 0, 0, 0);
>> uip_sethostaddr(ipaddr);
>> uip_ipaddr(ipaddr, 0, 0, 0, 0);
>> uip_setdraddr(ipaddr);
>> uip_ipaddr(ipaddr, 0, 0, 0, 0);
>> uip_setnetmask(ipaddr);
>> uip_setethaddr(MacAddress);
>> dhcpc_init(MacAddress.addr, 6);
>> uip_restart();
>> 
>> And It worked..
>> But now, I needed to change to lwip and when I try to change the
>> configuration It didnt work!
>> 
>> Someone has any idea?
>> 
>> Thanks
>> 
>> Regards
>> 
>> Oliveira, Diego
>> 
>> -- 
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>> 
>> 
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