文件名称:单片机坐标定时器实验
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http://www.edacn.net/cgi-bin/forums.cgi?forum=7&topic=9127下,则R3～R0的输出信号中会有一个为1,但我们还是是无法确定哪一个键被按下,必須要从R3 ～R0 的输出信号与C3～C0的扫描信号共同決定那个按键被按下.
编写VHDL的构思:
外部接口包括: a. INPUT脚 : CLK , R3～R0.
b. OUTPUT脚 : C3～C0 , DATA3～DATA0(辨别出的按键值).
-7topic http://www.edacn.net/cgi-bin/forums.cgi forum = = 9127, under R3 R0 to the output signal will be one to one, but we are unable to confirm which a key is pressed, we must proceed from R3 to R0 the output signal C0 to C3 with the scanning signal jointly decided that button is pressed. the idea of the preparation of VHDL : external interfaces include : a. INPUT feet : CLK, R3 ~ R0. b. feet OUTPUT : C0 to C3, DATA3 ~ DATA0 (identify the key values ).
编写VHDL的构思:
外部接口包括: a. INPUT脚 : CLK , R3～R0.
b. OUTPUT脚 : C3～C0 , DATA3～DATA0(辨别出的按键值).
-7topic http://www.edacn.net/cgi-bin/forums.cgi forum = = 9127, under R3 R0 to the output signal will be one to one, but we are unable to confirm which a key is pressed, we must proceed from R3 to R0 the output signal C0 to C3 with the scanning signal jointly decided that button is pressed. the idea of the preparation of VHDL : external interfaces include : a. INPUT feet : CLK, R3 ~ R0. b. feet OUTPUT : C0 to C3, DATA3 ~ DATA0 (identify the key values ).
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单片机坐标定时器实验
....................\8279显示实验.doc
....................\flame082858```.rar
....................\单片机坐标8051单片机的基本工作电路.files
....................\........................................\images_7-1.jpg
....................\........................................\index1.css
....................\........................................\logo2.gif
....................\........................................\mb_4.jpg
....................\........................................\mcuzb.htm
....................\........................................\mystat.htm
....................\........................................\newly.htm
....................\单片机坐标8051单片机的基本工作电路.htm
....................\单片机坐标8255扫描键盘、显示实验.files
....................\......................................\bit.gif
....................\......................................\dh.jpg
....................\......................................\images_7-1.jpg
....................\......................................\index1.css
....................\......................................\logo2.gif
....................\......................................\mb_4.jpg
....................\......................................\mcuzb.htm
....................\......................................\mystat.htm
....................\......................................\newly.htm
....................\单片机坐标8255扫描键盘、显示实验.htm
....................\单片机坐标定时器实验.files
....................\..........................\dh.jpg
....................\..........................\images_7-1.jpg
....................\..........................\index1.css
....................\..........................\logo2.gif
....................\..........................\mb_4.jpg
....................\..........................\mcuzb.htm
....................\..........................\mystat.htm
....................\..........................\newly.htm
....................\单片机坐标定时器实验.htm
....................\单片机坐标实用单片机电子钟的制作.files
....................\......................................\index1.css
....................\......................................\logo2.gif
....................\......................................\mb_4.jpg
....................\......................................\mcuzb.htm
....................\......................................\mystat.htm
....................\......................................\newly.htm
....................\单片机坐标实用单片机电子钟的制作.htm
....................\单片机坐标步进电机正转后转程序.files
....................\....................................\index1.css
....................\....................................\logo2.gif
....................\....................................\mb_4.jpg
....................\....................................\mcuzb.htm
....................\....................................\mystat.htm
....................\....................................\newly.htm
....................\单片机坐标步进电机正转后转程序.htm
....................\单片机坐标用8051控制报警产生实例.files
....................\......................................\dh.jpg
....................\......................................\images_7-1.jpg
....................\......................................\index1.css
....................\......................................\logo2.gif
....................\......................................\mb_4.jpg
....................\......................................\mcuzb.htm
....................\......................................\mystat.htm
....................\......................................\newly.htm
....................\单片机坐标用8051控制报警产生实例.htm
....................\单片机坐标简单I-O实验（交通灯控制）.files
....................\.........................................\dh.jpg
....................\.........................................\images_7-1.jpg
....................\.........................................\i
....................\8279显示实验.doc
....................\flame082858```.rar
....................\单片机坐标8051单片机的基本工作电路.files
....................\........................................\images_7-1.jpg
....................\........................................\index1.css
....................\........................................\logo2.gif
....................\........................................\mb_4.jpg
....................\........................................\mcuzb.htm
....................\........................................\mystat.htm
....................\........................................\newly.htm
....................\单片机坐标8051单片机的基本工作电路.htm
....................\单片机坐标8255扫描键盘、显示实验.files
....................\......................................\bit.gif
....................\......................................\dh.jpg
....................\......................................\images_7-1.jpg
....................\......................................\index1.css
....................\......................................\logo2.gif
....................\......................................\mb_4.jpg
....................\......................................\mcuzb.htm
....................\......................................\mystat.htm
....................\......................................\newly.htm
....................\单片机坐标8255扫描键盘、显示实验.htm
....................\单片机坐标定时器实验.files
....................\..........................\dh.jpg
....................\..........................\images_7-1.jpg
....................\..........................\index1.css
....................\..........................\logo2.gif
....................\..........................\mb_4.jpg
....................\..........................\mcuzb.htm
....................\..........................\mystat.htm
....................\..........................\newly.htm
....................\单片机坐标定时器实验.htm
....................\单片机坐标实用单片机电子钟的制作.files
....................\......................................\index1.css
....................\......................................\logo2.gif
....................\......................................\mb_4.jpg
....................\......................................\mcuzb.htm
....................\......................................\mystat.htm
....................\......................................\newly.htm
....................\单片机坐标实用单片机电子钟的制作.htm
....................\单片机坐标步进电机正转后转程序.files
....................\....................................\index1.css
....................\....................................\logo2.gif
....................\....................................\mb_4.jpg
....................\....................................\mcuzb.htm
....................\....................................\mystat.htm
....................\....................................\newly.htm
....................\单片机坐标步进电机正转后转程序.htm
....................\单片机坐标用8051控制报警产生实例.files
....................\......................................\dh.jpg
....................\......................................\images_7-1.jpg
....................\......................................\index1.css
....................\......................................\logo2.gif
....................\......................................\mb_4.jpg
....................\......................................\mcuzb.htm
....................\......................................\mystat.htm
....................\......................................\newly.htm
....................\单片机坐标用8051控制报警产生实例.htm
....................\单片机坐标简单I-O实验（交通灯控制）.files
....................\.........................................\dh.jpg
....................\.........................................\images_7-1.jpg
....................\.........................................\i