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Updated M27C322 (markdown)

sanni 2023-04-21 13:15:10 +02:00
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M27C322.md

@ -1,3 +1,7 @@
***
Important: The EPROM flashing code is incomplete. Setting/resetting margin mode is missing. Margin mode is needed for long time data retention. Therefore it should be considered non-working in its current form.
***
First you need to ensure that the Cart Reader is powered by either a good USB port or a high-quality 5V phone charger with 1A or 2A but beware cheap Chinese phone chargers do not work while an Amazon branded 5V/1A does. So it really depends on the quality. First you need to ensure that the Cart Reader is powered by either a good USB port or a high-quality 5V phone charger with 1A or 2A but beware cheap Chinese phone chargers do not work while an Amazon branded 5V/1A does. So it really depends on the quality.
Also be aware when just powered by the battery module it does not flash reliably. Also be aware when just powered by the battery module it does not flash reliably.
@ -14,7 +18,7 @@ Insert the 27C322 into the EPROM adapter positioned all the way to the left.
Flip the two SMD switches on the adapter both to the bottom position. Flip the two SMD switches on the adapter both to the bottom position.
Now plug the EPROM adapter into the cart reader so that the 27C322 EPROM is facing towards you. Now plug the EPROM adapter into the cart reader so that the 27C322 EPROM is facing towards you.
In the main menu first select "Flashrom Programmer" and then choose "Eprom adapter(beta)". In the main menu first select "Flashrom Programmer" and then choose "Eprom adapter".
To program the EPROM it needs to be erased with a UV EPROM eraser before inserting it into the Cart Reader, then do a blank check to ensure the erase was successful and finally select write to flash it with your ROM. To program the EPROM it needs to be erased with a UV EPROM eraser before inserting it into the Cart Reader, then do a blank check to ensure the erase was successful and finally select write to flash it with your ROM.
While writing a rom to the flashrom the led should blink constantly until the flashing process is completed. While writing a rom to the flashrom the led should blink constantly until the flashing process is completed.