countdown for A51 source

本人写的一个1602液晶屏显示程序，是用汇编写的・・欢迎交流与学习-I wrote a 1602 LCD screen display program, is welcome to use the compilation of written exchanges and learning

240X160触摸屏控制源程序,适用于液晶型号为8X10D-240x160 touch screen to control the source code, apply to LCD models 8X10D

关于LCD12864液晶驱动的源程序，编译过，可直接使用。-On the LCD-driven LCD12864 source, compiler, and can be used directly.

PIC的资源,用PIC16F505做段码显示的C语言样例-Single and multiple 7-segment displays, multiplexing, and BCD counting on baseline PICs (using the PIC16F505)

80C51系列单片机汇编语言设计教程-80C51 microcontroller series Language Design Guide Series

AVR Doper 简化的M8做的USB接口 的STK500V2-AVR Doper do M8 simplified USB interface STK500V2

EXAMPLE PROGRAM C CONTROL LED

基于单片机的波形发生器源代码,可供代价参考交流-Based on single-chip waveform generator source code, available for a price reference to the exchange of

PS2扩展功能，解决单片机输入资源太少的问题，可以通过普通键盘想单片机发送数据-PS2 extensions to address the importation of too few resources Singlechip problems, they can be accessed through the regular keyboard would like to send data Singlechip

The ADC0803 family is a series of three CMOS 8-bit successive approximation A/D converters using a resistive ladder and capacitive array together with an auto-zero comparator. These converters are designed to operate with microprocessor-controlled buses using a minimum of external circuitry. The 3-State output data lines can be connected directly to the data bus.