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Altera_Forum
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13 years ago

Multiple Nios II and Qsys

Hello, Is there anybody that used/have experience with Qsys to fit five Nios II on a Cyclone IV EP4CE22 FPGA? I could only fit one. I need to use SDRAM controller. I'd like to know how many...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Hi Socrates,

Thanks for guidance.

I did not use separate SYSID qsys components for each core, but i assigned different "NIOSII -> Advanced Feature -> cpuid control register value" to each NIOS core.

Is SYSID component necessary ?

And yes I did set the reset vectors to different address. I gave 64KB SDRAM memory to each core.

Also I have a question, how to figure out whether the stack, heap and other memory parts of different cores are not coinciding. As far I know, NIOS II EDS for Eclipse throws an error if it is so.