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Dennis_Nedry's avatar
Dennis_Nedry
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1 year ago
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Number of PLLs in Max 10 10M02 device

Hello, I am using the 10M02SCE144C8G device and I was surprised to find this compilation message when I added a second PLL to my project: Error (176394): Can't fit 2 PLLs in the device -- only 1 PLL...
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  • FvM's avatar
    FvM
    1 year ago

    Hi,
    curiously MAX10 device overview seems not mention in any place that MAX10S devices (single supply) have only 1 PLL. Neither device handbook explicitely does, it refers to pinout files. Simple way to get the info, open Quartus device selection.

    Regards
    Frank

Dennis_Nedry's avatar
Dennis_Nedry
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1 year ago

I created a new test project containing only 2 PLLs (using ALTPLL) and 4 I/O pins connected:

I attached the test project. It still gives the error. In fact, when I created the test project, I noticed this information listed:

So I believe that the table I referenced earlier shows ALL 10M02 series devices, that there is at least one of them that has 2 PLLs but mine only has 1? I think this kind of answered my own question.

For my actual project, it is OK; I only actually required 1 PLL, but I could have probably benefited by having a second one. Is there a good reference online somewhere that lists this information device-specific? Or is the Quartus software's new project wizard the best reference?