cheap/free controller to run linux

[rntsay]

does anyone know of a cheap or free soft core (rtl) that can
be used to run linux? something like an 8051 with an mmu (memory management unit)?

thnx

r.n.

 

[hwlee]

from my understanding, cpu likes 8051 does not support mmu. what kind of application is in your mind ? maybe i can give you some other suggestion.

 

[rntsay]

i know well that the 8051 doesn't have mmu...what I need is something as widely available as 8051 but withh mmu. maybe this doesn't exist.
the application is network storage (flash based). I know there are a lot of ic's for this, but i need a soft core.

thnx,

r.n.

 

[treb]

Have a look at opencores.org, there may be something there that could be suitable.

 

[hwswboy]

See LART **broken link removed**

 

[bogdanm]

Why don't you consider uCLinux instead? It doesn't need a MMU, and it's quite nice.

 

[davorin]

If you're talking about 8051 derivatives then you'll never gonna get (uC)linux to run on it (o;
It needs a 32 bit CPU with/without MMU.

For small embedded Linux devices consider one of those many Coldfire/Arm CPU's. Non-MMU support is already merged into the Linux-2.5.xx tree.

Otherwise you may want to have a look at our opensource TCP/IP stack instead:

**broken link removed**

 

[eltonjohn]

Triscend E5

Well ....There is triscend .... A 8051 fast core with a "kinda" MMU
The triscend E5 has a mapping mecananism that is very close of a MMU
(you have to do the caching yourself)

Otherwise they have also the E7 .. thats an arm with MMU ..

 

[davorin]

But it's still..how many bits? (o;

 

[jammulak]

8051 core doesn't support MMU. So you have to go for uClinux which very difficult for controller like 8051.

Linux requires 32 bit core and minmum of 4 MB of flash and 8MB of SDRAM.

There are many controllers which support linux from ATMEL.
at91sam9xxxxx series controllers support Linux.

Hynix hms30c7202 supports Linux...

There are many controllers support Linux...