PWM在单片机系统中的应用.这是一个很简单但很常用的一种方法...

C8051F120初始化SPI，启动CC2420。通过将CC2420 得VREG_EN 引脚置位高电平使能Voltage regulator，等待其稳定；然后重新启动CC2420 芯片，等待晶振起振。-Initialize SPI, start the CC2420. By CC2420 have VREG_EN pin high to enable the set Voltage regulator, waiting for their stability and then re-start the CC2420 chip, since waiting for crystal oscillator.

一个电路中电阻计算的小工具，可以快速计算如并联电阻的等效阻值等。很不错-Resistance in a circuit computing a small tool that can quickly calculate the equivalent parallel resistance, such as resistance and so on. Good

LCD液晶屏显示程序，如何简单有效的将LCD液晶屏驱动显示我们所需要的字符。-LCD liquid crystal screen display program, how simple and effective LCD LCD screen will show that we needed to drive the characters.

这是一个时钟程序，有可调功能，走时比较准确，还可定闹钟，比较实用-This is a clock procedures, have adjustable features, more accurate travel time, but also set an alarm clock, more practical

C51程序，标把控制器的完整得到程序。已经用在产品上。包括定时器的使用，步进电机的控制技巧。-C51 procedures, the S controller put the integrity of procedures. Already used in products. Timer including the use of the stepper motor control skills.

全面讲述了单片机的C51编程-comprehensive described the C51 microcontroller programming

用汇编写的音乐门铃的程序，虽然程序不大，但程序的内容很丰富，另配有PROTEUS的电路图。-Compilation of music written by doorbell procedures, although the procedure, but the procedure is very rich in contents, reprovision PROTEUS have the circuit diagram.

电压测试，数字电压表，利用动态显示模块显示-Voltage testing, digital voltmeter, using dynamic display module display

x5045,在P89V51RD2中用的，有EEROM，还有看门狗功能等！如果要详细的可以联系我，550291932-x5045, in P89V51RD2 used, and has EEROM, there are watchdog function! If you want details you can contact me 550291932