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SPLIT: Integrated MAC and 10 vs 100 mbps


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#1 xc2rx

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Posted 14 July 2015 - 07:19 AM

Hi Sukasa,

We have looked at making a Netduino 3 Ethernet PoE--but the added cost would put it out of the range of most makers. This is certainly something we could do for commercial customers in volume.
One good alternative I have seen for many maker applications is a PoE splitter.

What are you favorite things about Netduino 3 Wi-Fi?

Chris


Hi Chris,

If you guys do come up with a Netduino 3 with Ethernet, could you not use an EMAC+EPhy chip over SPI with a limitation of just 10Mbps like Netduino Plus 2? Could you guys use either the STM32F407VE or STM32F427VI that comes with a builtin EMAC then add an EPhy using MII/RMII to achieve 100Mbps performance speed? That would be awesome for many of the projects I work on. Let me know what to expect for the Ethernet version if possible.

#2 neslekkim

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Posted 14 July 2015 - 07:43 AM

They use the STM32F427 on the Wifi board, that chip have ethernet, but not sure if it is available on the 100pin package?


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Asbjrn


#3 Juzzer

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Posted 14 July 2015 - 07:55 AM

yes it comes in 100 pin which you can hook up to a PHY



#4 Chris Walker

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Posted 14 July 2015 - 04:23 PM

Hi xc2rx,

For full-speed 100mbps data transfer, you're probably best off looking at native code solutions (or higher-end PC hardware). NETMF is really targeted towards lower-bandwidth applications, single-chip devices, etc. We used the integrated PHY on Netduino Plus 1...but it offered little real-world application performance benefit over an external MAC+PHY solution. And with an external MAC+PHY solution, makers building custom boards can scale down to a 64-pin lower-resource chip and still affordably hook up Ethernet if/when desired.

We designed Netduino.IP to logically separate out the link layer (MAC portion) from the IP implementation. So if you wanted to create a native code interop driver for an on-chip MAC you can use the rest of the stack as-is.

Chris

P.S. Netduino.IP also has built-in driver support for the Asix AX88796C which supports 100mbps speeds for people whose hubs/switches prefer 100mbps devices.

#5 neslekkim

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Posted 14 July 2015 - 04:44 PM

Chris, If you are splitting threads, inform about that so we don't think you are deleting posts.


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Asbjrn


#6 neslekkim

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Posted 14 July 2015 - 04:46 PM

And btw, there are Ethernet versions of the Netduino3 here: http://www.amazon.co.../dp/B00WAHCKEK/

 

But still not possible to order from outside US, and the shop that should allow for that is nowhere to be seen.


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#7 xc2rx

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Posted 14 July 2015 - 06:21 PM

And btw, there are Ethernet versions of the Netduino3 here: http://www.amazon.co.../dp/B00WAHCKEK/

 

But still not possible to order from outside US, and the shop that should allow for that is nowhere to be seen.

 

Where can I find information about the Netduino 3 Ethernet board? I don't see it anywhere on the netduino.com website. I want to see the schematic if possible. Thanks!






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