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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 38886
http://forums.xgecu.com/attachment.php?aid=1716&k=cc73fefaa80aac3c828d9822e46ce39c&t=1793839294&sid=Vi468h

附件: P_log2.zip (2023-3-16 11:06, 339 Bytes) / 下载次数 38997
http://forums.xgecu.com/attachment.php?aid=1717&k=9d0a39f228ad0cb9638a8179263bf1f6&t=1793839294&sid=Vi468h

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 38935
http://forums.xgecu.com/attachment.php?aid=1719&k=4dd3584331fcf912f532598510fca890&t=1793839294&sid=Vi468h

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.

图片附件: 28c64.JPG (2023-3-20 13:53, 96.87 KB) / 下载次数 22609
http://forums.xgecu.com/attachment.php?aid=1726&k=d5f558205490c38ee712a0d0492fd1a1&t=1793839294&sid=Vi468h

图片附件: 28c64-2.JPG (2023-3-20 13:55, 132.12 KB) / 下载次数 23187
http://forums.xgecu.com/attachment.php?aid=1727&k=4565eae1c341f8971186046a670842e9&t=1793839294&sid=Vi468h

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