DE2-115: Problem - ISP1362 Does Not Work

Hi,

Thanks for your reply. I use the default hardware timing configured in the reference design.

For ISP 1362:

hc (connected to data master)

Setup: 140ns

Read wait: 50ns

Write wait: 50ns

Hold: 140ns

dc (connected to data master)

Setup: 150ns

Read wait: 150ns

Write wait: 150ns

Hold: 150ns

I did try to change all parameter values to 100ns as described in altera wiki, but still failed.

For sdram:

Clock frequency: 100MHz

Clock phase shift: -65 deg

Oh yes, there is 1 more thing. If I only use Nios II without MMU, and compiled using older version of Nios II Linux, the USB works properly.

Any idea regarding this situation? Thanks! ^^

Regards,

Gladion