--- Quote Start ---
DipSwitch,
I think there is a problem in your (and Bill’s) driver. low_level_input() in altera_tse_ethernetif.c allocates pbufs for incoming packets with pbuf_alloc(PBUF_RAW, PBUF_POOL_BUFSIZE, PBUF_POOL). By default PBUF_POOL_BUFSIZE evaluates to 1080 and, consequently, longer packets corrupt memory. In my code I simply redefine PBUF_POOL_BUFSIZE to be 2000, but for universal driver, like yours, some more elegant way should be found.
--- Quote End ---
Hmm, lets see:
# ifndef PBUF_POOL_BUFSIZE# define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_HLEN+ETH_PAD_SIZE)# endif
TCP_MSS = 1460
PBUF_LINK_HLEN = 14
ETH_PAD_SIZE = 2
To sum up: 1460+40+14+2 = 1516
Seems like no problems here?
Honored Contributor
