Forum Discussion

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

Altera TSE driver and example program for lwIP (1.3.2)

After many many requests and complaints about lack of support and/or documentation for support of lwIP for the Altera TSE, I have developed a drop-in TSE driver and example program and made this avai...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

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.