physical RAM limit under WinCE 6.0
- From: alexquisi@xxxxxxxxxxxx
- Date: 9 Jan 2007 10:24:50 -0800
Hi Valter,
unfortunately I cannot tell you a good technical reason to use more
than the 512 MB of DRAM. It is basically a costumer's requeriment
because he will use our board to run simultaneally several applications
that will consume a lot of memory (video streaming, Flash player,
several serial ports, etc). So he wants to be sure that he won't face
performance problems.
The use of NKCreateStaticMapping/NKDeleteStaticMapping seems
interesting for the video streaming application. I was checking the API
but I am not sure how I should access the memory area in User's mode. I
see that the API return a pointer to that area, I suppost that it would
be a global variable in the kernel. Should I implement IOCTRLs to
access it in User mode?
I also read (it was an old post) that these APIs do not work well with
some architectures (ARM and SH, I think), in my case I am using MIPS.
I'm also not sure when I should call NKDeleteStaticMapping. My board
only has cold boot.
The filesystem option sounds interesting, may you give me an idea how
it could be implemented? I am not sure if there is such RAM filesystem
driver in the sample code of PB...
Thanks a lot for your help.
Alex
.
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