AT89S52单片机程序50例
.....................\0001-I／O输出
.....................\.............\I／O输出.c
.....................\.............\I／O输出.hex
.....................\0002-I／O输入
.....................\.............\I／O输入.c
.....................\.............\I／O输入.hex
.....................\0003-输入输出口
.....................\...............\输入输出口.c
.....................\...............\输入输出口.hex
.....................\0004-红外收发演示
.....................\.................\红外收发.c
.....................\.................\红外收发演示.hex
.....................\0005-数码管移动
.....................\...............\数码管移动.c
.....................\...............\数码管移动.hex
.....................\0006-数码管扫描演示
.....................\...................\数码管扫描演示.c
.....................\...................\数码管扫描演示.hex
.....................\0007-独立按键
.....................\.............\独立按键.c
.....................\.............\独立按键.hex
.....................\0008-定时／计数器T0
.....................\...................\定时／计数器T0.c
.....................\...................\定时／计数器T0.hex
.....................\0009-定时／计数器T1
.....................\...................\定时／计数器T1.c
.....................\...................\定时／计数器T1.hex
.....................\0010-定时／计数器T2
.....................\...................\定时／计数器T2.c
.....................\...................\定时／计数器T2.hex
.....................\0011-（00-59）秒计时器
.....................\......................\00-59秒计时器(C语言).hex
.....................\......................\00-59秒计时器(汇编语言).hex
.....................\......................\00-59秒计时器.asm
.....................\......................\00-59秒计时器.c
.....................\......................\00-59秒计时器.DSN
.....................\0012-LED点阵
.....................\............\LED点阵.c
.....................\............\LED点阵.hex
.....................\0013-按键中断
.....................\.............\按键中断.c
.....................\.............\按键中断.hex
.....................\0014-上升三角波
.....................\...............\上升三角波.c
.....................\...............\上升三角波.DSN
.....................\...............\上升三角波.hex
.....................\...............\上升三角波.PWI
.....................\0015-频率测量
.....................\.............\频率测量.asm
.....................\.............\频率测量.DSN
.....................\.............\频率测量.hex
.....................\0016-流水灯
.....................\...........\流水灯.asm
.....................\...........\流水灯.hex
.....................\0017-方波输出
.....................\.............\方波输出.asm
.....................\.............\方波输出.hex
.....................\0018-定时1秒报警
.....................\................\定时1秒报警.asm
.....................\................\定时1秒报警.hex
.....................\0019-200Hz频率输出
.....................\..................\200Hz频率输出.asm
.....................\..................\200Hz频率输出.hex
.....................\0020-（200-250Hz）变化频率输出
.....................\..............................\200-250Hz变化频率输出.asm
.....................\..............................\200-250Hz变化频率输出.hex
.....................\0021-蜂鸣器
.....................\...........\蜂鸣器.c
.....................\...........\蜂鸣器.hex
.....................\0022-数字钟
.....................\...........\数字钟.asm
.....................\...........\数字钟.c
.....................\...........\数字钟（C语言）.hex
.....................\...........\数字钟（汇编语言）.hex
.....................\0023-1键多功能按键识别技术
.....................\..........................\1键多功能按键识别技术.asm
.....................\..........................\1键多功能按键识别技术.c
.....................\..........................\1键多功能按键识别技术（C语言）.hex
.....................\..........................\1键多功能按键识别技术（汇编语言）.hex
.....................\0024-步进电