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标题: Logic Test - 7490 Bad Vector Table [打印本页]

作者: yovish 时间: 2021-3-16 05:52 标题: Logic Test - 7490 Bad Vector Table

You have a badly defined 7490 series logic chip test!
I am sending you a correctly defined test.

图片附件: 7490 Bad Test.png (2021-3-16 05:51, 30.47 KB) / 下载次数 9604
http://forums.xgecu.com/attachment.php?aid=307&k=f0948d754a3cbf988a14a228c94f05c9&t=1794700832&sid=N033kJ

图片附件: 7490 Good Test.png (2021-3-16 05:52, 29.88 KB) / 下载次数 9361
http://forums.xgecu.com/attachment.php?aid=308&k=48fad08d369abb25eae9ddfb4304e8b4&t=1794700832&sid=N033kJ

附件: 7490.lgc (2021-3-16 05:52, 2.29 KB) / 下载次数 43260
http://forums.xgecu.com/attachment.php?aid=309&k=1da1ed732009650269681c198034f9d9&t=1794700832&sid=N033kJ

图片附件: 7490 Test Scheme.jpg (2021-3-20 04:55, 70.04 KB) / 下载次数 9515
http://forums.xgecu.com/attachment.php?aid=315&k=81c525a26ce49a6619d00af9caf6cd30&t=1794700832&sid=N033kJ

图片附件: 7490 Working.jpg (2021-3-20 04:55, 73.13 KB) / 下载次数 9603
http://forums.xgecu.com/attachment.php?aid=316&k=f1371c131056b63bf9b964ec4166adb7&t=1794700832&sid=N033kJ

作者: admin 时间: 2021-3-16 11:10

回复 1# yovish
thanks

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