主要介绍keil的功能及使用方法，并附有相关实例，及源代码

STC12C5402型

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IC卡操作软件:AT88SCl604芯片的操作模式有五种。它们是通过配PGM、RST、CLK等引脚信号及内部地址计数器(IAC)的状态组合来实现。 (1) 芯片复位操作： AT88SCl604有两种复位方式:上电复位和控制复位。 上电复位： 上电复位是当芯片加电时的最初状态。上电复位属于芯片 内部复位。它将使芯片内部所有的隐含标志复位到"0"状态。并使地址计数器复位到0位。 控制复位： 当CLK为低时，在RST脚上的一个下降沿将便芯片产生复位操作。 控制复位是将地址计数器复位到0位，而不影响任何内部标志的状态。-IC Card operating software : AT88SCl604 chip mode of operation there are five. They are allocated by PGM, RST, etc. pin CLK signal and the internal address counter (IAC) portfolio of the state is to be achieved. (1) chip reset operation : reduction AT88SCl604 two ways : power-on reset and reset control. Power-on reset : power-on reset when the chip is in power at the initial state. Power-on reset the internal chip is reset. It will enable all internal chip implied signs reset to "0" state. Make address counter reset to 0. Reset control : When the CLK for the low, the RST feet of a falling edge chips will have to reset operation. Reset control is to address counter reset to 0, without prejudice to any signs of internal sta

USBASP的源程序，里面有和USB通讯的例子-USBASP the source, there are examples and USB communications

单片机AT89S52实现的玻璃厚度控制，有2*4键盘，6位数码管显示，程序的注释较详细-SCM AT89S52 achieve control of the thickness of the glass, 2* 4 keyboard, six digital tube, the procedure in more detail Notes

采用IAR在线调试ADI基于ARM7内核的ADUC7026的RAM_CODE-IAR debug using online ADI based on ARM7 core ADUC7026 the RAM_CODE

HE48R/E05A 实现I/O模式的工作原理-HE48R/E05A realize I/O model of principle

利用单片机以及DA0832产生正弦波的C51源程序-As well as the use of single-chip generated sine wave DA0832 source of C51

自已编写的一个用于调试单片机串口的一个下位机程序。很实用的。-own prepared by a serial port for debugging MCU of a crew under the procedure. Very practical.

插在usb上使用的声卡的原理图,器件少,简单实用