check this: http://support.atmel.no/bin/customer?=&action=viewKbEntry&id=299
mathias -----Ursprüngliche Nachricht----- Von: [email protected] [mailto:[email protected]]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:[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
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