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Re: newbie -- RTOS for STR91xF mcu
- From: Andrew Lunn <andrew at lunn dot ch>
- To: Ravi Prasad <ravi4edu at yahoo dot com>
- Cc: ecos-discuss at ecos dot sourceware dot org
- Date: Tue, 28 Nov 2006 14:32:53 +0100
- Subject: Re: [ECOS] newbie -- RTOS for STR91xF mcu
- References: <20061128055330.31510.qmail@web54313.mail.yahoo.com>
On Mon, Nov 27, 2006 at 09:53:30PM -0800, Ravi Prasad wrote:
> Hi all,
>
> I am having a STR91xF (mmu less, ARM9) based board on
> which I need a RTOS with a POSIX compliant API. I
> found following choices:
>
> 1. FreeRTOS which is having a port for it. But it do
> not have POSIX compliant API which I will need to port
> few application from Linux.
>
> 2. uCLinux which is for mmu less processors. But it
> does not have a port and it is not real time.
>
> 3. eCOS which is RTOS and have POSIX compliant API but
> I am not sure it supports a mmu less controller.
>
>
> Looking into above can anyone suggest:
>
> 1. Which one is the best choice, FreeRTOS or uCLinux
> or eCOS or anyother?
How much of POSIX do you need? eCos does not implement
everything. uCLinux will have more of it.
> 2. Does eCOS supports mmu less processors?
Yes. It does not use the MMU, so it makes no difference if there is
one or not.
> 3. Is there any port of eCOS for STR91xF ? If not is
> there any ongoing project for this port? If not what
> will be the effort involved in developing a port (with
> considering that I m new to eCOS) ?
eCosCentric have a closes source port to the STR71. I guess a lot of
the device drivers will be re-usable on the STR91.
I don't remember an OpenSource port, but it is worth googling.
Andrew
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