Hi Bobby ,Greg,
Hi,all
First excuse me for my poor English. I am a Chinese.
Thank you for your reply, Yes, I think the most difficult thing
perhaps is tool chain. Does anybody interest in porting the uClinux to 51
based MCU ? If any,let us try it.
"Bobby Clark" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
02/15/2007 08:01 AM
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Re: [uClinux-dev] Could it possible to port uClinux to 51 based MCU?
----- Original Message -----
From: "Greg Ungerer" <[EMAIL PROTECTED]>
To: "uClinux development list" <[email protected]>
Cc: <[EMAIL PROTECTED]>
Sent: Wednesday, February 14, 2007 5:54 PM
Subject: Re: [uClinux-dev] Could it possible to port uClinux to 51 based
MCU?
> Hi Stevin,
>
> [EMAIL PROTECTED] wrote:
>> a question, Could it possible to port uClinux to 51 based MCU
with
>> large ram and rom?
>
> You are going to need > 1MB of RAM, can any 51 based MCU's really
> have that much?
Yes, there are 51 varients that have large avalable address spaces. Many
of
the c compilers support bank switching as well. I know one company I
interviewed with that was running about 4MB with a bank switched 51.
>
> Even then you might hit troubles with tool chain, you need a fully
> featured c compiler (preferably gcc), not the "reduced" functionality
> ones common on these little CPU's.
True, this will be the hard part. I don't know of anything that comes
close to a full function GCC like compiler for the 51. I have to do work
arounds almost any time I want to use the standard libarry with it.
Bobby
>
> But hey, never say impossible. "Very difficult" might be close
> to the mark though.
>
> Regards
> Greg
>
>
>
> ------------------------------------------------------------------------
> Greg Ungerer -- Chief Software Dude EMAIL: [EMAIL PROTECTED]
> SnapGear -- a Secure Computing Company PHONE: +61 7 3435 2888
> 825 Stanley St, FAX: +61 7 3891 3630
> Woolloongabba, QLD, 4102, Australia WEB: http://www.SnapGear.com
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