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Altera_Forum's avatar
Altera_Forum
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19 years ago

about memory problem for uclinux....

hi all I have upload a music file(xxx.wav,about 700kB ) to uclinux from my PC ,and I got very long error messages on uClinux . such as following: it seems memory not enough.............. anyone ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Hi jay_1025,

The DE2 is different from other Altera Nios dev boards.

The DE2 's fpga configs from EPCS16 (not CFI), is 2MB.

The sof is not written directly to EPCS, it will be converted to RBF (raw binary file).

The compress configuration data of 2C35 size around 300K-400K, typically.

So you will have around 1.6MB unused space in EPCS16.

You should store zImage after the RBF on EPCS.

That is, you should use EPCS first.

Then the CFI 4MB will be available for jffs2.

Another issue, busybox takes more memory on MMU-less arch.

So I move to simplified init and sash in uCLinux-dist. (!!!)

http://nioswiki.jot.com/wikihome/operating...nux/uclinuxdist (http://nioswiki.jot.com/wikihome/operatingsystems/%c2%b5clinux/uclinuxdist)

It will save more memory.