Cyclone III FIFO problem

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tan defaults to cutting timing between unrelated clocks.

--dalon

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what do you mean with "tan defaults"?

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in signaltap, use 2 capture windows, one for each clock. you could easily be seeing eroneous errors.

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I know that it is not good to sample a signal with another clock domain, but I think that it is not a clock domain problem because I handle data all-around from one fifo to another and I should get the right data also on the 125 clock domain (FIFO 2) wich should be OK in Signal Tab.

----->DATA--->|_FIFO_1__________|---->DATA---->|__FIFO_2_________|---> DATA

_____125Mhz___===============_____33Mhz___================ ___125Mhz

regards

Cyclone