文件名称:51key
- 所属分类：
- 单片机(51,AVR,MSP430等)
- 资源属性：
- [C/C++] [源码]
- 上传时间：
- 2012-11-26
- 文件大小：
- 1kb
- 下载次数：
- 0次
- 提 供 者：
- su***
- 相关连接：
- 无
- 下载说明：
- 别用迅雷下载，失败请重下，重下不扣分！
介绍说明－－下载内容均来自于网络，请自行研究使用
1.此程序非常简洁它不是进行键扫描,而是直接读Pn口,修改很方便,
不受键位置的影响,比如:要改变键号位置只需改变keytable表顺序既可,
且很容易改成双键或多键同时按下键值.
2.还有一种放法是先读行值,再读列值然后行值*4+列值,此种放法也简洁但
可修改性不大好,而且要用乘法运算,代码相对大.
3.可很容易变通应用在多键键盘,比如8*8键盘或更多,代码多不了多少,
只是增大keytable表就可以-1. This program is very simple and it is not the key scan, but a direct reading of Pn mouth, easy to modify, without the impact of key positions, such as: number keys to change the location of the order can only change the keytable table, and it is easy to change into a double bond or more keys are pressed together. 2. there is a release method is to first read the line value, and then read column value row value* 4+ column values, such a release method is also simple but not very good modifiability and use multiplication, the code is relatively large. 3. can easily be adapted in a multi-key keyboard, such as 8* 8 keyboard, or more, not much more code, but can increase the keytable table
不受键位置的影响,比如:要改变键号位置只需改变keytable表顺序既可,
且很容易改成双键或多键同时按下键值.
2.还有一种放法是先读行值,再读列值然后行值*4+列值,此种放法也简洁但
可修改性不大好,而且要用乘法运算,代码相对大.
3.可很容易变通应用在多键键盘,比如8*8键盘或更多,代码多不了多少,
只是增大keytable表就可以-1. This program is very simple and it is not the key scan, but a direct reading of Pn mouth, easy to modify, without the impact of key positions, such as: number keys to change the location of the order can only change the keytable table, and it is easy to change into a double bond or more keys are pressed together. 2. there is a release method is to first read the line value, and then read column value row value* 4+ column values, such a release method is also simple but not very good modifiability and use multiplication, the code is relatively large. 3. can easily be adapted in a multi-key keyboard, such as 8* 8 keyboard, or more, not much more code, but can increase the keytable table
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下载文件列表
51key.c