pico-rmii-ethernet is a project to enable Ethernet connectivity on a Raspberry Pi Pico with an RMII based Ethernet PHY module.
Leverages the Raspberry Pi RP2040 MCU’s PIO, DMA, and dual core capabilities to create a Ethernet MAC stack in software!
RP2040 is underclocked to 50 MHz using the RMII modules reference clock
Link speed is set to 10 Mbps (there is a issue with TX at 100 Mbps)
See the GitHub repo here for more information.
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