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'Nios2' 'Nios II' isa compatible to newer buildroot toolchain

beyondTime
Novice
‎04-18-2021 08:09 AM
1,594 Views

Hello @all,

 

is NiosII cpu isa (instruction set architecture, summary?) compatible within all NiosII implementations over years NiosII has been available (>2004?), yet?

Is buildroot toolchain's compiler (nios2-linux-gcc or nios2-buildroot-linux-gcc) suitable for compiling kernel and how to download a u-boot (or other bootloader) to a preset (.sof, .sopc) fpga environment through Usb blaster programmer/jtag-debugger.

Thanks @all for Your time and efforts. 

Sincerely, beyondTime

 

( nios2eds 13.0sp1, Xenial 16.04 )

background information beside technical context https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/pr/nios2_backgrounder.pdf

 

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EricMunYew_C_Intel
Moderator
‎05-05-2021 12:02 AM
1,526 Views

Yes, the Nios II ISA are compatible among all variants.

You can refer to below for Nios II builroot toolchain:

https://rocketboards.org/foswiki/Documentation/NiosIILinuxUserManualForCycloneIII


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beyondTime
Novice
‎05-08-2021 05:07 AM
1,511 Views
In response to EricMunYew_C_Intel

Thank you for replying.

Maybe it is easier directly loading a Linux Kernel to start entry point instead of adjusting u-boot to preconfigured Nios II setup.

Just learned that this start entry point can vary for every new hardware configuration, if enabled hardware changes memory, interrupt and peripherals maps.

 

Best regards,

beyondTime

( nios2eds 13.0sp1, Xenial 16.04 )

In response to EricMunYew_C_Intel
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