- Category:
- SCM
- Tags:
-
[WORD]
- File Size:
- 56kb
- Update:
- 2012-11-26
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- Uploaded by:
- yumhqy1987
Description: Electronic clock function and the use of the bell as a result of the use of e-12MHZ crystal, they are able to obtain a higher accuracy of the time. At the same time it can significantly hours, minutes and seconds. There are two buttons: A and B keys. A key is used to select the goal of correction is hours, minutes or seconds, the next by the first, the choice of seconds, according to the election under the second minute, the third hour of the election, has withdrawn from school under the fourth, the fifth another election under the second, and so the cycle of school or may choose to withdraw from school. B button every time, the selected object will be plus 1, for example, have chosen to minutes, then each click on this button will add the number of 1 minute.
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- [45575] - Campus rang the bell system, internal MC
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电子时钟（单片机）.doc
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