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Re: Redboot Rom & MBX 860 & Square 1


On Thu, 2001-11-15 at 01:48, Robert L. Perry wrote:
> I am trying to displace vxWorks as the OS of choice on several new designs.
> This will be a tough sell...
> 
> Since vxWorks works, I'm confident that the hardware is ok.  When I try to
> flash the rom version of redboot using Mot's firmware, the board hangs.  The
> best answer is that I'm doing something stupid :)
> 
> any suggestions are appreciated
> 
> Bob Perry
> bobPerry@bellatlantic.net
> 
> I Attempted to create rom.ppcbug and used the technique described at
> http://sources.redhat.com/ml/ecos-discuss/2001-06/msg00477.html which
> uses an srecord download
> 
> S2140401003C60FE00606320007C6803A64E800020EE
> S2140401106000000060000000600000006000000056
> 
> Note -
> offset 100 -> 3c60fE00...
> 
> This didn't work, so I tried the binary image from the web.
> 
> Downloaded redboot_ROM_40.bin and programmed flash using
> TFTP and compared w/ redboot_ROM_40.srec
> 
> S31AFE0000E700000000000000000000000000000000000000000000
> S31AFE0000FC000000003C60FE00606320007C6803A64E80002000F3
> S31AFE000111000000000000000000000000000000000000000000D5
> 
> 
> EPPC-Bug>ds fc000100
> FC000100 3C60FE00  ADDIS       R3,R0,$FE00
> FC000104 60632000  ORI         R3,R3,$2000
> FC000108 7C6803A6  MTSPR       8,R3
> FC00010C 4E800020  BCLR        20,0
> FC000110 00000000  WORD        $00000000
> FC000114 00000000  WORD        $00000000
> FC000118 00000000  WORD        $00000000
> FC00011C 00000000  WORD        $00000000
> EPPC-Bug>
> 
> This also didn't work...

You do have a MBX860 board, running at 40MHz?
I believe the procedure for installing RedBoot on this board involves
changing some switches/jumpers _after_ RedBoot is programmed into the
FLASH device.  Did you do that?




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