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Re: RedBoot necessary for porting ecos?
- From: Michael Jones <mjones at linear dot com>
- To: Ilija Kocho <ilijak at siva dot com dot mk>
- Cc: Lukas Riezler <lukas dot riezler at gmx dot net>, ecos-discuss at sourceware dot org
- Date: Fri, 11 Jan 2013 08:25:14 -0700
- Subject: Re: [ECOS] RedBoot necessary for porting ecos?
- References: <20130111005517.19900@gmx.net> <50EFC56F.4040506@siva.com.mk>
Lukas,
Ilija is correct, I was in a hurry and did not see the word "port" in your request. Therefore, my recommendations assumed your platform was supported.
Mike
On Jan 11, 2013, at 12:55 AM, Ilija Kocho <ilijak@siva.com.mk> wrote:
> Hello Lukas
>
> Actually RedBoot works on top of eCos so before eCos is ported you can't
> run RedBoot.
>
> Porting eCos to Cortex-M is relatively straight-forward (compared to
> other architectures) because some essential components are
> implemented/defined on architectural level: interrupt controller,
> systick, and general memory map.
>
> In most cases, all you need to make in order get first eCos "Hello
> World!" on serial line are:
> 1. Clocking
> 2. Diagnostic (HAL) serial support.
>
> Once you have reached this point, you can start with device drivers
> (serial, Ethernet, etc).
>
> Regarding peripheral drivers: Before you start coding, do some research
> through eCos source tree, it is possible that your chip has some
> peripherals that are already supported for other architectures, then you
> can probably use the same drivers (with or without some tweaks). Usually
> the manufacturers combine same peripherals with different architectures.
> For instance LPC17xx uses drivers from LPC2xxx.
>
> Have fun!
> Ilija
>
> On 11.01.2013 01:55, Lukas Riezler wrote:
>> Hello everyone!
>>
>> First I have to say, that I'm quite new in microcontroller theme (and my english is not so good).
>> But I'm interested to get ecos run on my IAR-EvalBoard with CortexM3 (FM3).
>> I've read a lot of stuff but though I have some elementary questions:
>>
>> - is it a requirement to work with RedBoot or is it also possible to port ecos without using RedBoot?
>> - I know that RedBoot is based on the ecos-HAL. Does it mean, if I port RedBoot to my target, that I can use later the same HAL-Code for ecos?
>>
>> With kind regards,
>> Lukas R.
>>
>
>
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