Hello, LEDs (was RE: Meta Boot Loader)

[Scott C. Karlin]

Johnson, Erik J writes:
> 
> >    /*
> >    **  The next line is a guess
> >    */
> >    typedef unsigned long UINT32;
> 
> It looks like it is also in types/vxTypesOld.h, and I
> bet others.

I couldn't find these on the IXP1200 CDROM.  Perhaps it comes
with VxWorks?

> >    I'm using the default start address of 0x00008000.
> 
> Just watching the vxWorks link step, I see that they place the
> text segment at 0x1000, that is probably the first thing I would
> try.  You can also type make vxWorks in the BoardSupport\VxWorks\IXP1200EB
> directory and watch for other compiler/linker options being passed into
> the process of making vxWorks.  It looks like they change the entry
> point to sysInit, but I can't image the actual name of the entry point
> is important.

Without VxWorks, I cannot run the makefile to watch the commands.
I also cannot find the vxWorks target in the makefiles.  It is
probably in $(WIND_BASE)/... somewhere.

> I also wonder if the boot loader assumes anytype of compression and/or
> checksums.  I thought there was a checksum in the a.out header (?) and
> I don't think the vxWorks image I have is compressed (I can look at its
> symbols...)

I agree, the first bytes of the vxWorks file from the CDROM are:

00000000:  00 0A 03 00 00 00 00 00 9C 64 09 00 BE 23 00 00  .........d...#..
00000010:  1C 00 07 A1 0B 01 00 00 18 31 09 00 DC 32 00 00  .........1...2..
00000020:  08 B1 00 00 00 10 00 00 00 10 00 00 18 41 09 00  .............A..
00000030:  2E 74 65 78 74 00 00 00 00 10 00 00 00 10 00 00  .text...........
00000040:  18 31 09 00 A8 00 00 00 00 00 00 00 00 00 00 00  .1..............
00000050:  00 00 00 00 20 00 00 00 2E 64 61 74 61 00 00 00  .... ....data...
00000060:  18 41 09 00 18 41 09 00 DC 32 00 00 C0 31 09 00  .A...A...2...1..
00000070:  00 00 00 00 00 00 00 00 00 00 00 00 40 00 00 00  ............ at ...
00000080:  2E 62 73 73 00 00 00 00 F4 73 09 00 F4 73 09 00  .bss.....s...s..
00000090:  08 B1 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
000000A0:  00 00 00 00 80 00 00 00 00 10 0F E1 3F 10 C1 E3  ............?...
000000B0:  D3 10 81 E3 01 F0 29 E1 4C 11 9F E5 02 20 A0 E3  ......).L.... ..
000000C0:  00 20 81 E5 9C 1F A0 E3 01 10 81 E3 80 1F 81 E3  . ..............
000000D0:  10 1F 01 EE 00 10 A0 E3 10 1F 0D EE 11 20 A0 E3  ............. ..
000000E0:  18 11 9F E5 00 20 81 E5 51 EF 0F EE 00 10 A0 E3  ..... ..Q.......
000000F0:  13 1F 0E EE 18 1F 0E EE 9A 1F 07 EE 16 1F 07 EE  ................

This is neither a.out nor binary.  It also isn't compressed.

-Scott