* [ECOS] MMI without PHY
@ 2015-11-17 14:22 Privat
2015-11-17 15:05 ` Jerzy Dyrda
2015-11-17 16:27 ` [ECOS] " Grant Edwards
0 siblings, 2 replies; 3+ messages in thread
From: Privat @ 2015-11-17 14:22 UTC (permalink / raw)
To: ecos-discuss
Hi im working
on getting a Ecos conrolled ECU to communicate with a counterpart,
using only the ethernet 302.ab MMI layer of Ecos with no phy present.
So whats the plan?
The plan, is to provide the whole os with a stump, creating the happy
ilusion of a ever present connection. Has anyone done this previously?
If so, can you hook me up with a link to a repo/sampleconfig, where this
was done?
Please keep in mind that im still reading into the ecos source...
Regards PicassoCT (florian seidl-schulz)
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [ECOS] MMI without PHY
2015-11-17 14:22 [ECOS] MMI without PHY Privat
@ 2015-11-17 15:05 ` Jerzy Dyrda
2015-11-17 16:27 ` [ECOS] " Grant Edwards
1 sibling, 0 replies; 3+ messages in thread
From: Jerzy Dyrda @ 2015-11-17 15:05 UTC (permalink / raw)
To: Privat; +Cc: eCos Discussion
Hello Florian,
2015-11-17 15:22 GMT+01:00 Privat <PicassoCT@gmx.de>:
> Hi im working
> on getting a Ecos conrolled ECU to communicate with a counterpart,
> using only the ethernet 302.ab
You mean 802.3ab
>MII layer of Ecos with no phy present.
Without PHY? Would you like to connect to a counterpart with using MII bus?
Please remember about electrical constrains of the MII bus.
> So whats the plan?
>
> The plan, is to provide the whole os with a stump, creating the happy
> ilusion of a ever present connection. Has anyone done this previously?
> If so, can you hook me up with a link to a repo/sampleconfig, where this
> was done?
>
> Please keep in mind that im still reading into the ecos source...
First of all which controller/processor do you plan to use?
Best regards,
jerzy
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^ permalink raw reply [flat|nested] 3+ messages in thread
* [ECOS] Re: MMI without PHY
2015-11-17 14:22 [ECOS] MMI without PHY Privat
2015-11-17 15:05 ` Jerzy Dyrda
@ 2015-11-17 16:27 ` Grant Edwards
1 sibling, 0 replies; 3+ messages in thread
From: Grant Edwards @ 2015-11-17 16:27 UTC (permalink / raw)
To: ecos-discuss
On 2015-11-17, Privat <PicassoCT@gmx.de> wrote:
> on getting a Ecos conrolled ECU to communicate with a counterpart,
> using only the ethernet 302.ab MMI layer of Ecos with no phy present.
> So whats the plan?
>
> The plan, is to provide the whole os with a stump, creating the happy
> illusion of a ever present connection. Has anyone done this
> previously?
Sure. It's done all the time in embedded devices that include an
Ethernet switch. One port on the switch has a "reverse" MII interface
that connects directly the the microcontroller's MII interface.
>If so, can you hook me up with a link to a repo/sampleconfig, where
>this was done?
Not really, all the examples I know of are proprietary.
Just take out whatever code you have that's trying to talk to a PHY,
then configure the microcontroller's MAC to 100M Full-Duplex (or
whatever you want for the link), and you're done.
--
Grant Edwards grant.b.edwards Yow! Is my fallout shelter
at termite proof?
gmail.com
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2015-11-17 14:22 [ECOS] MMI without PHY Privat
2015-11-17 15:05 ` Jerzy Dyrda
2015-11-17 16:27 ` [ECOS] " Grant Edwards
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