Flash Counter
#1
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Join Date: May 2008
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Flash Counter
Hi together
Im a really newbee in Ecu Flash. My question is: Does the Ecu Flash can show u how mani times a rom has been flashed and where i can find that?
Thanks a lot
Regards
Pascal
Im a really newbee in Ecu Flash. My question is: Does the Ecu Flash can show u how mani times a rom has been flashed and where i can find that?
Thanks a lot
Regards
Pascal
#5
There are theoretical limits to flash memory - but until someone starts getting some sort of corruption - we're likely to never find out the practical limits of reflashing. Especially since we don't reflash the entire memory at once - only the blocks that have changed from the original flash.
edit: looks like the write process is not byte granular - whole blocks need to be rewritten.
http://en.wikipedia.org/wiki/Flash_memory
Last edited by EvoBroMA; Jun 5, 2008 at 11:42 AM. Reason: corrected bytes to blocks
#6
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iTrader: (2)
Yes, you re-write blocks at a time, but not the entire 512 every time. It's pretty easy to follow the blocks being written in ECUFlash.
I've heard that many chips similar to the ones in our ECUs can be written over 10,000 or 100,000 times. If you reach that limit on an automotive ECU you're a mad man. You'd have to flash the entire ROM 2 times every day for nearly 14 years to reach 10,000 flashes.
I've heard that many chips similar to the ones in our ECUs can be written over 10,000 or 100,000 times. If you reach that limit on an automotive ECU you're a mad man. You'd have to flash the entire ROM 2 times every day for nearly 14 years to reach 10,000 flashes.
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#11
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iTrader: (2)
Isn't this pretty easy to prove or disprove by simply doing a hex compare after flashing the ROM?
Unless a counter is kept somewhere else that isn't read when reading the ROM, just do a compare after flashing the car and see what has changed. See if a bit that you haven't changed with the flash has changed.
Unless a counter is kept somewhere else that isn't read when reading the ROM, just do a compare after flashing the car and see what has changed. See if a bit that you haven't changed with the flash has changed.