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Altera_Forum
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8 years ago

Internal Oscillator for MAX10 device

Hello. I am trying to use internal oscillator in MAX10 FPGA. It works but I am getting 83 mhz instead of desired 55 mhz. Already confusing the frequency setting in IP altera_int_osc. It says C...
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Altera_Forum
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8 years ago

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I found one more doc which tells about int osc frequency

https://www.altera.com/en_us/pdfs/literature/hb/max-10/m10_datasheet.pdf (https://www.altera.com/en_us/pdfs/literature/hb/max-10/m10_datasheet.pdf) page 28

Written Fmin=55MHz, Ftyp=82MHz, Fmax=116MHz.

But still implicitly.

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That is not implicit. The datasheet indicates explicitly that the internal oscillator can range from 55MHz to 116Mhz, and nominally is 82MHz.

There is no way for you to change it in your physical device; if you could the datasheet would indicate how to do so. It does not.

You can change it in simulation to reflect the min/max value range, so you can check your design. But that is for simulation only.