arm7 lpc2132 GPIO driver for beep

数模转换器和模数转换器在单片机系统中的应用：AD转换器和DA转换器在MCS-51系列单片机系统中的应用-DAC and ADC in Single Chip System: AD converters and DA converters in the MCS-51 Series Single Chip System

单片机系统上电后，P0 口和 P1 口都被清 0。然后，你规定一个由 6 个数字构成的序列（每个数字从 0～F 中选取），比如 E、8、9、0、7、F。然后每次当单片机检测到外部中断 0发起中断时间时，读取 P0 口和 P1 口上的状态值，当连续 6 次外部中断事件的对应的数字序列构成你所设定的序列后（举例来说，如果 P0.0 是 1，P0 和 P1 的其他管脚是 0，那么我们称为检测到一次数字 0），从串口打印输出一幅类似下图的 16×16 的ASCII码的圣诞树图片。-Single-chip microcomputer system after power, P0 and P1 mouth I have been ching 0. Then you set a six figure constituted by the sequence (each number from 0 ~ F in selected), for example, E, 8,9,0,7, F. And then each time a single-chip detects external interrupt 0 initiated interruption time, I read the P0 and P1 mouth on the state value, when a row 6 times the corresponding external interrupt events constitute digital sequence set your sequence (for example example, if P0.0 is 1, P0 and P1 of the other pin is 0, then we called a number of detected 0), a printout from the serial port under similar 16 × 16 map of the ASCII code of the Christmas tree图片.

单片机模拟IIC总线程序包-IIC-bus single-chip simulation package

实现一个简单的电子钟的功能，可是显示时、份、秒，还能置位，恢复默认设置！是初学者的好帮手！-The realization of a simple function of the electronic bell, but displayed, were seconds, but also home, and to restore the default settings! Is a good helper for beginners!

为了实现高精度的水温控制，本文介绍了一种以SPCE061A单片机为控制核心、以PID算法控制以及PID参数整定相结合的控制方法来实现的水温控制系统-In order to realize high-precision temperature control, This paper introduces a single-chip microcomputer to control the core SPCE061A to PID algorithm PID control and PID control of a combination of methods to realize the temperature control system

基于DS12R885的时钟芯片的单片机程序 很具有参考价值-DS12R885-based single-chip clock chip is a reference value of the procedure

1302时间集成电路,在430上调试通过-1302 time integrated circuits, in the 430 debugging through

* 本程序包含控制外部液晶面板的4-BIT控制模式子 * * 程序。这些程序是专门为 MCU201 workshop演示板 * * 设计的。但它也可作为其他类型的使用 KS0066U控 * * 制器的液晶面板的控制程序。-* The procedures include external LCD control of the four-BIT- control mode** procedures. These procedures are specifically for MCU201 workshop demonstration board** design. It can also be used for other types of use** KS0066U control system for the LCD control procedures.

Base64编码方法及例程，其功能和方法都在文件的开头部分说明。-Base64 encoding methods and routines, its functions and methods at the beginning of the document part.

PID方面的资料-PID information