- Category:
- SCM
- Tags:
-
[WORD]
- File Size:
- 55kb
- Update:
- 2012-11-26
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- Uploaded by:
- lucui911
Description: 8253,8259 and other chip design using a electronic clock, in the press after the start button, LED digital tube displays the current setting of time and start walking, to achieve 24 hours automatic cycle timer function, the clock accurate time and still function on time . Full use of the interrupt control functions 8259, 8253 and the chip timing counting their application programming to achieve clock operation.
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11.doc