usb host的驱动程序,用于实现usb端口的初始化等

Ti 公司低功耗RF芯片选型资料.其中有13.56-27MHz,300-1000MHz ,2.4GHz等等芯片选型参考-Ti low-power RF chip companies Selection information. Among them, 13.56-27MHz ,300-1000MHz, 2.4GHz chip, etc. Selection of reference

本源码实现了在下位机上对室内温湿度的监控，对外接设备电压欠压的监控，以及室内火警监控-Realize the source of the next-bit machine on the indoor temperature and humidity controls, external voltage under-voltage monitoring and control equipment, as well as the indoor fire monitoring

基于凌阳SPCE061，具有语音功能的波形发生器-Based on Sunplus SPCE061, voice-enabled waveform generator

有单片机控制的12864图形显示程序，，有汉字和图形的程序-There are 12,864 single-chip graphic display control procedures, there are Chinese characters and graphics procedures

基于单片机用软件实现直流电机PWM 调速系统-Realize single-chip software-based DC motor PWM speed control system

20ma的电流环通信回路仍应用于一些远程通信的场合，本文为其实现过程。-20ma current loop

LED+8952=万年历-LED+8952 = calendar

一种能产生宽调节占空比的PWM芯片，适合做逆变电源。-Can generate a duty cycle of the PWM chip width adjustment, suitable for power inverters.

这是Fresscale单片机定时器输出比较的例子，该例程详细介绍了Timer模块输出比较功能，对单片机开发人员来说是个很好的参考。-This is an Example of Output of the Timer.

4*4数字键盘输入温度极限值，DS18B20测温，数码管显示温度值，蜂鸣器和LED报警-4* 4 digital keyboard input temperature limit, DS18B20 temperature measurement, digital display temperature control, alarm buzzer and LED