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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=430c86d36429e23590502e413cfc60c4&t=1793839434&sid=taUzAu

附件: P_log2.zip (2023-3-16 11:06, 339 Bytes) / 下载次数 38998
http://forums.xgecu.com/attachment.php?aid=1717&k=dd0e152b96af7ac646f4b3497631a647&t=1793839434&sid=taUzAu
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 38936
http://forums.xgecu.com/attachment.php?aid=1719&k=e64a05366e9aefa489791eeb0be73d0f&t=1793839434&sid=taUzAu
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 22609
http://forums.xgecu.com/attachment.php?aid=1726&k=f3442b1b6d72ac135a72f96bcacc19a1&t=1793839434&sid=taUzAu



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=33f1ce8ae27c69bd68941c6fa2ef7596&t=1793839434&sid=taUzAu






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