Hi Gene, PCW,
I just hooked up a second ethernet port to an rpi3b.
I ssh'd into eth1 and ran a sim axis.
pi@raspberrypi:~/linuxcnc-dev $ uname -a
Linux raspberrypi 4.14.59-rt37-v7+ #1 SMP PREEMPT RT Sun Aug 26 15:11:25
+07 2018 armv7l GNU/Linux
What tests can be run to see if this can use 'normal' mesa ethernet cards?
without actually having them ?
tomp
The 'trick' to extra ethernet port without using the usb bridge
is to use an ENC28J60 module connected to gpio pins ( no usb involved )
the ethernet is bitbanged spi
here's a link to what i did ( altho i have different pins used and a
slightly different module than he used )
https://www.instructables.com/id/Super-Cheap-Ethernet-for-the-Raspberry-Pi
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