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bare metal C on SAMA5D4 Xplained Ultra with Jlink, which IDE?

Microbit

After running Linux on my SAMA5D4 Xplained Ultra board, I thought I'd put the JTAG to use and explore writing and debugging bare metal C on it.

Ok, repgramming the EDBG for Jlink OB was easy..., using a fav IDE seems major headache :

- uVision 5 appears to not supprt SAMA5 (then again, it's poor SW anyway)

- Microchip "Studio" has no supprt either? What?

- Segger Embedded Studio (my fav CrossWorks spawn) talks with the Jlink EDBG fine but gives insane cryptic errors when I try to build a Cortex A5 target, this is nuts.

  Further, SEB doesn't seem to properly support SAMA5 either?

Is there a more sane way to do this?

PS : I detest Eclipse

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  • From what I can tell, it's an applications processor, so it's unusual to run applications bare metal. That being said, you could write bare metal for it, and build with GCC, either cross-compiled (a bit awkward to set up initially, but there will be guides on it, just not specifically for that processor), or even natively, i.e. compile on itself, which is often the far easier approach at least for quick experiments. Developers would normally use tools like Visual Studio Code (VS Code), and that can kick off the build process (may take some configuration), or the build can be done from the command line.

    I would say, when it comes to bare metal coding, it may well be quite an uphill task to set up the processor (quite detailed examination of the datasheet would be needed, to study what registers initially need to be configured, which of course usually isn't needed, since that would be part of the boot process for the OS, if it were not a bare-metal project). 

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  • From what I can tell, it's an applications processor, so it's unusual to run applications bare metal. That being said, you could write bare metal for it, and build with GCC, either cross-compiled (a bit awkward to set up initially, but there will be guides on it, just not specifically for that processor), or even natively, i.e. compile on itself, which is often the far easier approach at least for quick experiments. Developers would normally use tools like Visual Studio Code (VS Code), and that can kick off the build process (may take some configuration), or the build can be done from the command line.

    I would say, when it comes to bare metal coding, it may well be quite an uphill task to set up the processor (quite detailed examination of the datasheet would be needed, to study what registers initially need to be configured, which of course usually isn't needed, since that would be part of the boot process for the OS, if it were not a bare-metal project). 

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  • in reply to shabaz

    Thanks Shabaz for taking the trouble in reviewing and replying. Sorry for the delay, I got no notification at all.
    Normally I wouldn't be too worried about it as I'm not much into "ROMless". But I bought the SAMA5D4 xplained really cheap during Ele 14's "firesale"
    and wanted to do something funky with it.... But I agree, it might be too ambitous in setting up resources.... :-) Sill would be fun to be tenacious for a change :-) 

    Thanks!