Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Igor Mac, DP83848 and tcpdump

Hi all, could you somebody advice me with my problem ? I have design (in attachement) - NIOS2, SDRAM, ethernet (igor mac) with zImage and when i boot kernel and use ifconfig eth0 192.168.2....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Thank you,

but yesterday I finally found the error - it was in SOPC builder in Open Cores 10/100 Ethernet MAC Avalon - Igor Mac, which has 3 parameters:

Total descriptors: 128

TX Fifo size in bytes: 128

RX Fifo size in bytes: 4096

It must be 4096, when it was 128, data was not read.

Although i didn´t make tcpdump, i change open_eth.c to debug mode and in this mode the kernel print RX and TX data from/to ethernet chip. (in attachment)