Forum Discussion

fa_fpga_enthusiast's avatar
fa_fpga_enthusiast
Icon for Occasional Contributor rankOccasional Contributor
11 months ago

Nios V Hardware Interrupt Limitations

Hello, Based on the Nios V Processor Reference Manual and AN 978 Nios V Processor Migration Guidelines, Nios V supports only 16 hardware interrupts, whereas Nios II supports 32. Additionally, the Ex...
Nios Cpu
tehjingy_Altera's avatar
tehjingy_Altera
Icon for Regular Contributor rankRegular Contributor
10 months ago

Hi


Sorry for the confusion, the IRQ Bridge just reroutes the interrupt.

It does not increase the interrupt number of the NiosV.

After confirming with my colleague, the NiosV current interrupt limitation is at 16 interrupts.

This is limited by the hardware design of the NiosV, however there are plans to increase the interrupt numbers in the future release.


Regards

Jingyang, Teh