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Altera_Forum
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21 years ago

Another Lan91C111 LWIP problem!

I tried running the Nios Stratix DevKit on a 10BaseT link (rather than 100BaseT), and was surprised when everything fell apart. Ethereal shows that certain longish packets would switch half-way...
Altera_Forum's avatar
Altera_Forum
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21 years ago

Roddy,

It looks like you're correct this is indeed a bug fix. I'll put it into the driver for a future release.

As for the output driver being polled, yes it is. However I doubt that this is a problem, as a quick calculation of the cycles used in the main Tx loop and all the other overheads shows that the CPU cannot keep up with line rate so you're unlikely to get the situation where you enter low_level_output and the previous transmission has not completed.