running program in SRAM doesn't work

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Maybe the ram delays a little to response.

Try to create a PLL clock with 2 clock outputs

One with a delay and connect it to de NIOS clock

The other clock without delay connect to de ram clock.

I had the same problem and solved by PLL whit delay clock (In case 3ns).

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Hi man,

Can you elaborate please, I'm having awful trouble. nios getting ext clock 50Mhz. SDRAM clock getting -3ns from a pll. Will not work.

This is simplified to a sentence, but that's basically it!

Cian