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looking at the data sheets we have almost the same chip by 2 different manufacturers. the atmel lists the 12v erase sequence, mine does not mention it except saying it is 5V only for operations. mine wont write no matter what i try, at least you got yours to write a...
Hi,
I am trying to do the exact same thing. I want to use my arduino mega to program an eeprom. I bought a Xicor 28c256 that has the same datasheet info as the Atmel because it says it is accessed the same as SRAM.
I tried it before I found this post, and my arduino code ended up looking...
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