Julian Winpenny

LWIP phy problem

Discussion created by Julian Winpenny on Nov 27, 2019
Latest reply on Nov 29, 2019 by Julian Winpenny

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 ?