基于单片机技术的声反馈抑制系统研究 学术论文

仪器仪表键盘显示模拟系统，用AT89S52芯片作为系统的CPU，控制系统的按键及显示器部分。用8路同相三态双向总线收发器74LS245芯片驱动LED。4X4矩阵键盘作为系统人机交互的重要部分，用于向单片机应用系统输入数据或控制信息，设计4X4矩阵键盘分别对应键码“0-F”。系统可以实现的基本功能包括开机LCD液晶屏幕显示“大专05电子信息X班XXX毕业设计”信息；按下任意一个按键，LCD液晶屏幕显示相应按键的信息。在基本功能的基础上还增加了一个扩展功能，即增加一个LED数码管同步显示相应键码-Show the simulated keyboard instrumentation systems, using AT89S52 chip as a system CPU, system control buttons and display parts. With 8-phase three-state bidirectional bus transceiver 74LS245 chip-driven LED. 4X4 matrix keyboard system as an important part of human-computer interaction, single-chip microcomputer application system used to input data or control information, the design of 4X4 matrix keyboard key code corresponding to

51单片机流水灯 可以实现多种闪光功能-51 single-chip can achieve a variety of water flashing lights function

台湾群特温湿度手持仪表软件，做温湿度记录的可以参考，-Taiwan group of special temperature and humidity meter handheld software, to do temperature and humidity records for reference

12864LCD电子钟c语言程序，电子钟的经典之作-12864LCD electronic bell c language program, the electronic bell classic

电感电容表,用2051作CPU,用1602作显示-Inductance capacitance table, using 2051 for the CPU, by 1602 for display

利用DS18B20采集温度，显示温度到lcd上-DS18B20 collected using temperature, shows that the temperature on the lcd

ocmj2*8液晶中文显示程序，测试通过-English ocmj2* 8 LCD display procedures, test

单片机与LCD12864并口控制驱动程序-SCM and LCD12864 parallel port control driver

c8051f020键盘和显示器源码，用hd7129来驱动-C8051f020 keyboard and display the source code used to drive hd7129

环境CodeWarrior4.6. freescale 9s12dg128实时中断demo程序。 实现CPU的实时中断功能的例程。每100ms小灯闪烁。-CodeWarrior4.6.freescale 9s12dg128 environment in real-time interrupt demo program. Realize real-time CPU interrupt routine. Small lights flicker every 100ms.