Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

MAX10: Is there a limit on the number of components (IP Cores) in Qsys?

Hi all,

Is there a limit to the number of IP cores (specifically UARTs) that can be added to a Qsys system? I read somewhere that there was a limit on something but I can find the pdf and I don't remember if it was for the number of new components that could be created or ...

... if I make a NIOS system in QSYS, can I add as many UART cores as I could fit into a particular MAX10 device?

Thanks

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    10 years ago

    Is there a limit? No, I don't believe so. You may be concerning yourself with the limit of 32 hardware interrupts available on a Nios core. However, that's simply the number of interrupt sources you can have.

    I've just added 33 UARTs and a Nios core in Qsys and successfully fitted it to a MAX 10 device. One UART instance doesn't connect to an interrupt but there's no reason it couldn't be AND'd with another if you need to.

    Cheers,

    Alex
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    10 years ago

    I have 602 IP Cores in a single system (well, split across about 40 Qsys files some of which are instantiated several times). So the limit is only on space in the FPGA, and amount of RAM in the PC (Qsys eats RAM like there is no tomorrow and if the system gets too large it can crash).