I'm wondering about a strange behaviour of the 52234's FEC. I have set up the FEC to handle only one receive BD which buffer size is 2048 bytes. In presence of a heavily loaded network I get a FEC lock even if I always free the unique receive BD every time its E bit is set to 0 by the FEC DMA engine. When I say FEC lock I intend that no more RXF interrupts are rised.
I suspect the FEC locks because may happen that the receive FIFO is full and there are no free receive BDs to write in the OV bit. Is my assumption correct ? Can you explain me this FEC behaviour ?
How many frame are you able to receive before the FEC locks up? I might be your release_RxBuffer_descr() function that's in cause. Make shure the Wrap bit stays set to one.
