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标题: KM28C64A fails programming, also AT28C64 fails [打印本页]

作者: stevemas    时间: 2023-3-16 11:06     标题: KM28C64A fails programming, also AT28C64 fails

Both chips fail, random errors in programming, they are good EPROMs. Logs attached.

附件: P_log.zip (2023-3-16 11:06, 330 Bytes) / 下载次数 36062
http://forums.xgecu.com/attachment.php?aid=1716&k=62ba2d66bfcf6d493facf71a4c0f20d7&t=1777554581&sid=wUR6LQ

附件: P_log2.zip (2023-3-16 11:06, 339 Bytes) / 下载次数 36205
http://forums.xgecu.com/attachment.php?aid=1717&k=de5b7dfe07b9b5950e5155420f46bf2c&t=1777554581&sid=wUR6LQ
作者: stevemas    时间: 2023-3-17 09:14

Reply 1# stevemas


   I'm just going to return it, it doesn't work for 8k EEPROMS.
作者: admin    时间: 2023-3-17 15:30

回复 2# stevemas


select IC: AT28C64, not AT28C64E.
they have diffrent page size when programming.
error on adaddress: 0x00080 and 0x00040
作者: stevemas    时间: 2023-3-19 06:55

Still does not work.[attach] [attach] 1719[/attach] 1719[/attach]

附件: P_log4.zip (2023-3-19 06:54, 336 Bytes) / 下载次数 36115
http://forums.xgecu.com/attachment.php?aid=1719&k=38582ec5886dc86c2e4f81bd60b850ec&t=1777554581&sid=wUR6LQ
作者: admin    时间: 2023-3-19 17:56

回复 4# stevemas


   I have tested the AT28C64B and there is no problem. I will find several chips to try。
作者: admin    时间: 2023-3-20 13:55

回复 4# stevemas
all are normal.
28c64.JPG 28c64-2.JPG

图片附件: 28c64.JPG (2023-3-20 13:53, 96.87 KB) / 下载次数 21182
http://forums.xgecu.com/attachment.php?aid=1726&k=b66013deb8f6206e3531ed602e5af6e8&t=1777554581&sid=wUR6LQ



图片附件: 28c64-2.JPG (2023-3-20 13:55, 132.12 KB) / 下载次数 21680
http://forums.xgecu.com/attachment.php?aid=1727&k=b33bff540e512d6abb9c9fb2e465b948&t=1777554581&sid=wUR6LQ






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