Hello, i think i ´ll move the heap and data to SDRAM. I read the application note, but i don´t know exactly that files create or edit because i have lwip and freeRTOS.
My first idea is to do: a) edit the crt0.x of the project b) edit init_startup function in the port directory of FREERTOS c) Add de link_... .lds to the project d) change the option of linker Do you follow this step? Thanks Oscar On Thu, Oct 1, 2009 at 7:05 PM, Oscar F <[email protected]> wrote: > Hello one question, if i defined one buffer very big, is necesary to > increase alot the stack of the task. My memory is 64k too and i have > FreeRTOS and lwip. I need to create a buffer of 20000bytes. > > Do you think i have enough memory or i need to move all memory to SDRAM? > > thanks > > Oscar > > > On Thu, Oct 1, 2009 at 6:05 PM, Dany Thiffeault > <[email protected]>wrote: > >> great, thanks! >> I tried many things, but not this one. >> >> Also, I want to point out that in the meantime, I decided to move my heap >> to my SDRAM instead of the 64k SRAM on the AVR32UC3. Now I have enough space >> to create all my tasks without problem, even with bigger stack sizes. >> >> >> >> On Thu, Oct 1, 2009 at 1:09 AM, Mathias Zenger <[email protected]>wrote: >> >>> check this: >>> >>> http://support.atmel.no/bin/customer?=&action=viewKbEntry&id=299 >>> mathias >>> >>> -----Ursprüngliche Nachricht----- >>> *Von:* [email protected] [mailto: >>> lwip-users-bounces+m.zenger <lwip-users-bounces%2Bm.zenger>=mobatime.com >>> @nongnu.org]*Im Auftrag von *Dany Thiffeault >>> *Gesendet:* Mittwoch, 30. September 2009 17:42 >>> *An:* Mailing list for lwIP users >>> *Betreff:* Re: [lwip-users] LWIP size >>> >>> Thanks Bill, good idea. >>> I'm still trying to figure out how to generate the MAP file with >>> AVRStudio 2.1... >>> >>> >>> >>> On Tue, Sep 29, 2009 at 5:30 PM, Bill Auerbach < >>> [email protected]> wrote: >>> >>>> Check you MAP file and find out where RAM has been allocated. It’s >>>> easy to allocate too many PBUF_POOLs and run out of memory that way. >>>> >>>> >>>> >>>> Bill >>>> >>>> >>>> >>>> *From:* [email protected][mailto: >>>> lwip-users-bounces+bauerbach <lwip-users-bounces%2Bbauerbach>= >>>> [email protected]] *On Behalf Of *Dany Thiffeault >>>> *Sent:* Tuesday, September 29, 2009 3:56 PM >>>> *To:* Mailing list for lwIP users >>>> *Subject:* [lwip-users] LWIP size >>>> >>>> >>>> >>>> Hi, >>>> >>>> >>>> >>>> I would like to know what is the expected (approx.) size of the lwip >>>> stack. I use sequential configuration. My problem is that on my AVR32, I >>>> only have 64kbytes of SRAM and for some reasons, it is full. I'm trying to >>>> run my application using FreeRTOS and lwip. When I create tasks, my last >>>> one >>>> always fail on the malloc. >>>> >>>> >>>> >>>> So, I'm assuming that FreeRTOS and lwip take a significant amount of >>>> space on my AVR32 in SRAM because my tasks have those sizes (presented in >>>> order of creation): >>>> >>>> >>>> >>>> 1- lwip Main task: 512 >>>> >>>> 2- Startup task (my own): 512 >>>> >>>> 3- FreeRTOS Scheduler: 256 >>>> >>>> 4- Ethernet task (my own): 512 >>>> >>>> 5- Ethif (lwip): 256 >>>> >>>> 6- Diags task (my own): 512 >>>> >>>> >>>> >>>> The last one is the one that fails. So, out of 64kbytes, my tasks take >>>> much less memory. I another project not using lwip, I was able to create 3 >>>> tasks of 1024, 4096 and 4096 of size. So, I presume lwip takes a >>>> significant amount of space. >>>> >>>> >>>> >>>> If yes, how could I tweak the config to reduce the size taken? >>>> >>>> >>>> >>>> Best regards, >>>> >>>> DownyTif. >>>> >>>> _______________________________________________ >>>> lwip-users mailing list >>>> [email protected] >>>> http://lists.nongnu.org/mailman/listinfo/lwip-users >>>> >>> >>> >>> _______________________________________________ >>> lwip-users mailing list >>> [email protected] >>> http://lists.nongnu.org/mailman/listinfo/lwip-users >>> >> >> >> _______________________________________________ >> lwip-users mailing list >> [email protected] >> http://lists.nongnu.org/mailman/listinfo/lwip-users >> > >
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