Use IRQ mode, works here!

xxxajk commented 5 years ago

Use latest SDK from my repo for success.

xxxajk commented 5 years ago

BTW, would be handy to have that "voodoo" fix. That seems to make it run best.

martin-ger commented 5 years ago

Think, I have another explanation, what might be wrong with the enc-driver under high load:

currently the enc28j60_link_output() does a polling wait for the packet to be transmitted.
it is not reentrant, disallows enc-interrupts, and assumes, that nobody can call it again while sending.
this might be wrong, when packets come from the WiFi interrupt

It would be much nicer to have real TX interrupt handling in the driver - polling is ugly anyway. Better: enc28j60_link_output() tests, whether there is an ongoing TX. If so it queues the packet. If not it starts TX and returns.

TX interrupt clears status, checks, whether there is a waiting packet, if so starts sending and returns

martin-ger / esp-open-lwip

Use IRQ mode, works here! #13