Suggested mechanism of burning a LinuxBIOS on FLASH ROMS
Richard Smith
rsmith at bitworks.com
Wed Apr 9 16:13:01 CEST 2003
Deepak Kotian wrote:
> any O.S started on this machine, which means I would need to replace the
> BIOS FLASH ROM with a one with proper BIOS and bring up the machine.
> Is there a way I can re-program the old BIOS on to the corrupted FLASH ROMS.
> Please note,I do not have a PLC or any kind of FLASH programmer with me. Can
> I do without it.
>
> If there are any suggestions, please let me know.
Deepak,
Something you might also consider is an ROM Emulator. One that will do
a larger flash is still expensive but not as expensive as a good
flash/eeprom programmer.
With a ROM emulator you remove the original BIOS chip and plug in the
emulator. Then you download you code into the emulator. The target
never knows the difference. This also saves a lot of time in the
code-test-recode cycle as the emulator is usually much faster than
re-flashing a chip.
Of course if your chip is soldered on the board it's not really an option.
I've done a good bit of my developemnt with a 1-Mbit ROM emulator from
tech-tools called the EconoROM and a DIP to 32pin PLCC adapter. 1Mbit
gets you 128k of space which will hold Linuxbios fine.
The emulator + adapter would probally run you $400-$500.
--
Richard A. Smith
rsmith at bitworks.com
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