FlashROM

Unknown

I need to find out how to write to a FlashROM chip

[ie - that of a PalmPilot]

Any help will be appreciated.

-Dave

Unknown

That's kind of arcane information... however, you may be a able

to find it in a rather unusual place... the CIH virus which has been c

causing such a stir recently is best known for rewriting Flash BIOSes.

If you searched Virii and hackerz pages, you could probably come across

the source somewhere...

Unknown

: I need to find out how to write to a FlashROM chip

: [ie - that of a PalmPilot]

: Any help will be appreciated.

: -Dave

Most FlashROM's and EEPROM's within devices have

an operating system or monitor which provides

utilities and instructions for flashing.

Eg, the motorolla 68HC11 uses the BUFFALO monitor

which has the command 'T' which will flash a

string of characters from a serial i/o into EEPROM.

The palm pilot probably has a similar system.

The other alternative is to remove the chip

and flash it in a special chip writer. Non

volatile ram often uses a high input voltage

eg 12V to electrically erase the bit contents,

allowing writing to a new state.

This probably was no real help.

aXis

Unknown

Thanks for all your help guys.

Of course I would plan on backing up the Flash first, and THEN erase it.

:-)

-Dave

Unknown

: That's kind of arcane information... however, you may be a able

: to find it in a rather unusual place... the CIH virus which has been c

: causing such a stir recently is best known for rewriting Flash BIOSes.

: If you searched Virii and hackerz pages, you could probably come across

: the source somewhere...

That virus only affects AMI BIOS I believe. I don't

think they use that in Palm-Pilots.