Hi Roland, We had a discussion about it a few months ago!
We know it is possible, but nobody until now tried to do it. Basically you will need RMII support on both chips, I don't remember the details why MII will not work (or will be more difficult to work) There is a discussion about it here, maybe you can get more insights: https://stackoverflow.com/questions/39503466/can-two-ethernet-mac-chips-be-connected-directly-without-going-thru-phy Best Regards, Alan On Thu, Feb 29, 2024 at 2:11 PM Roland <ning.rol...@mindpx.net> wrote: > Hi, > > I would like to directly connect a STM32F7 processor running Nuttx, to an > external MCU (i.e., NXP imx8m) through RMII directly, without the need for > PHY IC in between. > Is this supported by Nuttx? I checked into the documents but this direct > mode seems not been mentioned anywhere. > Can anyone please confirm if this is supported, or I have to change > something by myself? > > Thank you. > > /Roland > >
