Hello,
None of the four questions were answered... :( Did i say something worng?
Regards,
AB
On Wed, Aug 27, 2008 at 6:23 PM, Akshat Bisht <[EMAIL PROTECTED]>wrote:
>
> Jifl,
>
> On Wed, Aug 27, 2008 at 5:52 PM, Jonathan Larmour <[EMAIL PROTECTED]>wrote:
>
>> Akshat Bisht wrote:
>> > I don't have any means to read the debug values. When if i enable
>> > display functions, i won't have any means to "read" it. Am i sounding
>> > confused? All i wish to say is that i don't have means like JTAG, etc.
>> > to read back any thing from my kit.
>>
>> How were you able to tell mem_malloc was returning NULL?
>
>
> I was able to tell that because in pppmain the program was getting inside
> the
>
> if (!p) {
> //light led
> LWIP_ASSERT("p != NULL", p);
> pc->errCode = PPPERR_ALLOC;
> goto out;
>
> i set an LED there.
>
>
>>
>>
>> > Ok here is my problem: i increased MEM_SIZE to 2000 (if i put anything
>> > more the code is no longer executed. Even with the increased size,
>> > mem_malloc returns NULL..
>>
>> Are you short of memory on this target? Do you know how much you should
>> have free? In other words, has the program become too big for available
>> RAM? You should check how much RAM it uses against how much your target
>> has
>> got. How to do that will depend on your development environment, tools,
>> etc.
>
>
>
> I'm using IAR's Workbench for ARM with PowerPAC OS. Target is LPC 2129.
> When i changed PPP_MRU size from 1500 to 200, it works fine. Still PPP is
> not going up and i'm not getting any data out of the serial port.
>
> May i add a few questions here?
> 1. what is the lwip "main task"? I understand that there are in all 3
> tasks(or threads), "tcpip", "ppp", "lwip". I call pppInit() and
> tcpip_init() from my own task, does this task become lwip main? i plan to
> call the http_server example from this next.
>
> 2. can i do without writting a thread oriented sys_timeouts()? till now
> it's a simply -
>
> struct sys_timeouts *sys_arch_timeouts(void) {
> return &lwip_system_timeouts;
> }
>
> 3. Apart from ppp, tcpip, is there any other thread under lwip? I'm asking
> this because i was currently done away with sys_thread_new and in place have
> placed direct MY_OS_TASK_CREATE function calls in place of it in ppp.c and
> tcpip.c
>
> 4. How do i manage the buffer at sio.c level? my processor has a 5 byte
> stack, but i guess i will need more than that?
>
>
> Thanks and regards,
>
> Akshat
>
>>
>>
>> Jifl
>> --
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>
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