在C51下编写的频率计函数，可以对测得输入信号的频率

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使用PROTEUS仿真的RS232串行通信口,可在串口助手输入,激活7段数码管显示相应的数字-PROTEUS simulation using RS232 serial communication port, serial port assistant in the input, activation of 7 digital tube display the corresponding figure

三路红外线探头控制ISD2560语音播放。主要原理是正常情况下三对红外线接收管接收到各自配套对应的红外发射管的红外线，属于正常检测状态，一旦有一路红外管信号被隔断，侧启动语音芯片程序，播报警示提醒语音或报警。三对红外管可以根据使用需要，设置搭配报警程序。可用于各种排队系统。-three-way infrared probe control ISD2560 voice broadcast. The main principle is that under normal circumstances receive three pairs of infrared receiver to control their own matching the corresponding infrared emission of infra-red and is a normal state of detection, if there is way infrared control signals are cut off, side launched procedures voice chip, broadcast a warning to remind voice or alarm. Three pairs of infrared tube can be used, the police procedures set match. For various queuing system.

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ZLG7289键盘显示接口芯片是一个很常用的接口芯片，至需4个IO口接可以控制显示8位的数码管显示和64个矩阵键盘的自动扫描，效果很好。-ZLG7289 keyboard display interface chip is a very common interface chip, to take four IO access can be controlled mouth shows 8 digital tube display and keyboard matrix 64 automatically scans, very good.

关于msp430单片机的一些 自己收集的一些有需要的请下载-MSP430 MCU on some of his own collection of some of those in need, please download

Elan eKTP8733N 单片机Touch Pad驱动程序。可检测8个Touch Pad按键是否按下。在Elan公司开发环境中使用。-Elan eKTP8733N Singlechip Touch Pad driver. 8 can detect whether the Touch Pad button press. Elan has developed in the environment.

读写AT45D041卡的c51程序-literacy AT45D041 decoder card procedures

这个是多机通信的程序，虽然老了点，但是用与实验是很好用的，本人昨天刚去试过啊，呵呵，希望对大家有帮助，嘿嘿 -This a multi-machine communication procedures, although old, but with the experimental use is a good use, and yesterday I just tried to ah, what we want to help, laughter

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