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11 years ago

Quartus2 - altpll megawizard plugin - no clock output in simulation waveform editor

Hi,

in my schematic entry I use the altpll block to divide my clock.

I`ve routet the outputs to GPIO pins and could measure them via oscilloscope.

But when I use them for simulation in the waveform editor, there is just a low signal at the outputs.

So, check out my screenshot, to see that the allclear button works, and the pll is going to start, after alclr is low.

So it seems, that the pll works, and as I told you, I can measure the clock signals via oscilloscope at the gpio pins.

So, what did I wrong?

I would be happy, if someone could help me.

best regards

sektor

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