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Altera_Forum's avatar
Altera_Forum
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21 years ago

Debugging Legacy Mode

I want to run Insight to debug a NiosII Legacy build. OCI/JTAG is not one of the options in the debugging communications list. (only uart) Can someone please tell me how to do this.

The Core (/s) has a JTAG debug module setup and nd program.srec acts like it is going to work (connects, seems to download), but gdb nevers comes up. (Progress: .....c then nothing)

The other (less desirable) option is to debug/run Insight over the uart.

Or can I add a JTAG Uart and use the IDE?

What's the best practice here?

Thanks,

Ken

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

    Ok, here are some irritating bugs for those who have asked. Maybe it will save some time for someone.

    I found that I could n2d a small test program if I nb'd it and it created a program.elf file. So n2d test.elf works.

    But, when you build a program using the sample Makefile it creates an obj/ dir and puts most of the output in there, but the .elf file is actually named .out. n2d will not work with this file, so I coppied obj/program.out to ./program.elf.

    Now n2d program.elf exits immediately with "can't create /tmp/prog_setup.gdb - permission denied". So chmod -R /tmp and still no joy. (same error)

    Turns out the .elf file needs to be in the obj/ directory so the magic incantation is to create a obj/program.elf now...

    n2d obj/program.elf works! (note that nd obj/program.out used to work with NiosI)

    You can search and replace all .out with .elf in the Makefile to make it go easier.

    Ken