[ECOS] More question on GDB Stub for NECVR4373 board.

Ling Su lingsu@palmmicro.com
Thu Aug 3 19:52:00 GMT 2000

Hi, Chareles,

Thanks a lot for your helpful response for my post on eCos mailing list.

I still met troubles to run the test cases of eCos tools.(Please refer my
last post on the list). I also tried to compile the Hello.c and
simple-alarm.c use mips64vr4300-elf-gcc, I got a lot of warnings and got two
over 1M byte "a.out", of course, when I invoke mips64vr4300-elf-gdb to load
them, both failed.

I carefully following the instructions of "Getting start with eCos", but

If you have spare time, please kindly point me out some clue. Thanks!

Best Regards,

----- Original Message -----
From: "Charles Feng" <charles@zh.t2-design.com>
To: "Ling Su" <lingsu@palmmicro.com>; "Ling Su" <lingsu@palmmicro.com>;
Sent: Wednesday, August 02, 2000 5:56 PM
Subject: Re: [ECOS] More question on GDB Stub for NECVR4373 board.

> On Thu, 03 Aug 2000, Ling Su wrote:
> > Hello, everyone,
> >
> > Since I met troubles to burn the gdbstub ROM for NECvr4373 board, I'd
> > to looking some help from the list. More specifically, I hope someone
> > help answer following questions, Thanks in advance!
> >
> > <1>. Has anyone successfully run eCos via the gdbstub on NECvr4373
board? I
> > knew Jifl did it, I'd like to query if anyone else succeed in doing
> We did and we're doing.
> >
> > <2>. I observed the PCI bus signal after I mounted  the gdbstub EPROM
that I
> > burned, there is no any active signal showing out there. Since the UART
> > on South bridge chip, it must be accessed via PCI bus, this mean
> > wrong with my gdbstub or my board. I doubt if my board doesn't work, or
> > least not fully functional. (But I am pretty sure the PMON comes along
> > the board works very well.) This is the reason I'd like to check if
> > else successd in burning the GDBSTUB except Jifl.
> Please notice the endianess problem. The PMON runs in little endian while
> default comipler settings of ecos is big endian (if you don't know what
> endianess is, read any MIPS books). You have to disconnect the jumper JP66
> the board to set the endianess to be big.  After you have done this, I
> you can connect to the gdb by your stub
>   >  > <3>. Till this step, I have no clue to do further
> observation, but I'd like > to burn a PCI test program in to EPROM to take
> test for the hardware. I > found there are two test cases, pci1.exe and
> pci2.exe. Could I apply > "mips64vr4300-elf-objcopy -O binary" on them to
> binary file, and burn it > to the EPROM to test it directly without
> >
> > I think <3> is the most urgent one for me. Could anyone drop me a clue?
> > Jifl, please do me a favor. :)
> >
> > Regards,
> > -Ling
> --
> Regards
> Charles
> mailto:charles@zh.t2-design.com

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