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G120 to G120E

Posted 2yr ago
by Mogollon | Senior | 1,061 exp
Posted 2yr ago
by Mogollon | Senior | 1,061 exp
Hi everyone, I'm facing an interesting issue regarding the Ethernet interface in our G120 boards.

We stocked G120 SoM for our current products and we want to use the same parts for different applications on the same products.

One model of our current product line requires now 100Base-TX ethernet and we want to use our stock of G120 SoM.

Digging around the forums I have found that the G120-E is using the http://www.ti.com/product/DP83848K (unconfirmed)

So my question for GHI and anyone that could offer some light is:

If we get the same Ethernet PHY chip from the G120E, can we use the existing drivers on our existing G120?

Can someone share how can we connect this chip to a regular G120 to make the GHI built in driver for .Net framework work (pin wise)?
I'm not asking for the G120E schematics just for a sample pin out with this PHY chip to work with a G120 using the GHI existing drivers or maybe a way to reuse the existing Ethernet builtin code with the G120 and the Ethernet PHY chip because it was already done for the G120E.

Hopefully I won't need to develop a driver from scratch and be able to get some of the already tested and bullet-proof code from GHI into the Ethernet controller.

Regards,
Reply #1 — Posted 2yr ago
by Gus_ghielectroncs | Employee
Reply #1 — Posted 2yr ago
by Gus_ghielectroncs | Employee
In theory yes it will work and you do not need a driver. This was not tested. What I suggest is that you work with our consulting on getting this together for you. A safer route and probably cheaper than trial and error.
Reply #2 — Posted 2yr ago
by Mogollon | Senior | 1,061 exp
Reply #2 — Posted 2yr ago
by Mogollon | Senior | 1,061 exp
Great @Gus !
You guys are awesome.
I will get in touch as soon as we finish the requirement, at least we have the critical path covered.
Do you mind sharing the email of the right person to contact about this?
4 likes
Reply #3 — Posted 2yr ago
by RobvanSchelven | Hero | 17,308 exp
Reply #3 — Posted 2yr ago
by RobvanSchelven | Hero | 17,308 exp
@Mogollon - Here's the schematic that i used to implement the PHY to a G120 board.

Cheers
Reply #4 — Posted 2yr ago
by Mogollon | Senior | 1,061 exp
Reply #4 — Posted 2yr ago
by Mogollon | Senior | 1,061 exp
@RobvanSchelven - Wow thanks a lot, that is a big help!

By any chance it worked with the GHI builtin network drivers?
Reply #5 — Posted 2yr ago
by Gus_ghielectroncs | Employee
Reply #5 — Posted 2yr ago
by Gus_ghielectroncs | Employee
@RobvanSchelven - great. Then this is proven to work already.
5 likes
Reply #6 — Posted 2yr ago
by RobvanSchelven | Hero | 17,308 exp
Reply #6 — Posted 2yr ago
by RobvanSchelven | Hero | 17,308 exp
Mogollon says:

@RobvanSchelven - Wow thanks a lot, that is a big help!

By any chance it worked with the GHI builtin network drivers?

Yes you can use the dirtect ethernet driver. I will send you a direct message with a clear PDF of the schematic tomorrow.
Reply #7 — Posted 2yr ago
by Mogollon | Senior | 1,061 exp
Reply #7 — Posted 2yr ago
by Mogollon | Senior | 1,061 exp
@RobvanSchelven - You are a saver, that was going to be my next question. I will be waiting for it.
Thanks again!
3 likes
Reply #8 — Posted 2yr ago
by Gus_ghielectroncs | Employee
Reply #8 — Posted 2yr ago
by Gus_ghielectroncs | Employee
A great example of an amazing community.
1 like
Reply #9 — Posted 2yr ago
by Mogollon | Senior | 1,061 exp
Reply #9 — Posted 2yr ago
by Mogollon | Senior | 1,061 exp
@cyberh0me - I agree, there is any way I can do that?

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