nios interface with fifo

Have a look at Mike DeSimone's FIFO IP over in the "Post Your Own IP" section.

I've installed it, but haven't deployed it yet. I'm still banging away on interrupting on AlmostFull from an external fifo and burst reading the contents using an avalon dma.

It works great except it's never perfect. I get 2-4 misses or double reads every time I empty the 480 32 bit words out of a 512 word fifo.

I've just about got the culprit nailed using SignalTap. But if I can't overcome, then the next thing to try is Mike's IP.

Ken