I'm porting a bootloader code from 5282 to 52259. I'm having some problems with TFTP driver implementation.
When I try to transmit a packet I receive a "transmit fifo underrun" error. I understood that the 5282 and 52259 fec are quite similar so I think that I have not to change the fec initialization I already have. I'm actually thinking to a problem on transceiver setting.
Could someone try to explain me which are the possible causes for this type of error? I already read a small paragraph on the datasheet but it didn't help me.
Thank you, regards