LWIP phy problem

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LWIP phy problem

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winpennyjh
Contributor I

MCU: LPC4333

Harware is custom.

I'm trying to get my DP83848 ethernet phy to work in RMII mode based on the lwip_tcpecho example.

The link status is good and the PHY_LINK_CONNECTED bit is set.

lpc_low_level_input() returns NULL because the descriptor is still owned by DMA

So no packets get received.

Has anyone else had similar issues ? 

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winpennyjh
Contributor I

Resolved!

RMII mode only works when ENET_RX_DV mode is used

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