[mc1322x] "atoi" oversize

Jon Smirl jonsmirl at gmail.com
Sun Jul 4 09:39:50 EDT 2010


On Sun, Jul 4, 2010 at 9:34 AM, Mariano Alvira <mar at devl.org> wrote:
> On Sat, Jul 03, 2010 at 10:18:20PM -0400, Jon Smirl wrote:
>>
>> Are you putting them into the Freescale reserved block where they keep
>> their factory tuned parameters? I thought that block was preserved
>> across an erase command.  We'd need enough of the ROM disassembled to
>> make sure were aren't stomping on Freescale data but I think they
>> hardly use any of the block.
>
> No, they are using the entire 0x1F000 page. I've been using

They are using the 0x1f000 page since that is the smallest erase block.

I don't think they are using more than a few hundred bytes out of the
128K block.


> 0x1E000. It's 128kB. You need potentially 96kB for the image and the
> cal data is 4kB. That leaves 28kB for your own use.
>
> They "protect" the page they use with the set_svar call --- normally
> you can't read or write it. They don't do that with any other pages so
> I assume they are free to use.
>
>>
>> My original dev boards didn't have addresses in them. Which program
>> are you using to write them?
>
> The econotag contiki platform does this. I haven't merged the dev
> platform yet --- but you can just run the econotag build on the dev
> board and it will flash an address.
>
> -Mar.
>



-- 
Jon Smirl
jonsmirl at gmail.com



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