- Category:
- SCM
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-
[WORD]
- File Size:
- 104kb
- Update:
- 2012-11-26
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- Uploaded by:
- paintinglove
Description: Doing the project (engineering), we often use to a relatively large number of keys, and IO resources, then we will find ways to save in another module I IO, 12 IO hard I squeezed, they found still not enough, it can not add an IC on the button to scan. Although the price of an IC is not high, but high-volume production and product manufacturers with low profits, it is spending a lot of money! It, we can not think of a better way to scan key: with a minimum of IO I, So Most of the key? Can we do that?
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堪称一绝的IO口扫描.doc
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