一款收款机C源代码！因为是几年前的代码了，比较经典，还是共享一下！ 里面有不少算法还是很不错的，注意用三菱16位30802的编译器...

这只是我在学习TI公司生产的16位超的功耗单片机MSP430的随笔，希望能对其他朋友有所借鉴，不对之处还请多指教-This is only my TI in the learning produced by 16-bit single-chip MSP430 ultra-power of the essay, hoping to draw on some other friends, doing so also please advice

本方法的基本思想就是利用单片机具有的PWM端口，在不改变PWM方波周期的前提下，通过软件的方法调整单片机的PWM控制寄存器来调整PWM的占空比，从而控制充电电流-The basic idea of this method is the use of microcontroller has the PWM ports, without changing the PWM square wave cycle, under the premise of the method to adjust by software MCU PWM control registers to adjust the PWM duty cycle and thus control the charge current

使用汇编语言的89C2051LED显示程序源码-The use of assembly language source 89C2051LED display program

实用的单片机实现软件滤波方法及示例程源代码 -Realize practical single-chip microcomputer software filtering method and sample code CHENG Yuan

又一个LCD1602的例程（主要是最近正在做相关的工作），已经调试通过。-Another LCD1602 routine (mainly related to the work being done recently), have been debugging through.

单片机做的小键盘，单片机模拟ps2接口的程序-Singlechip make a small keyboard, single-chip analog interface procedures ps2

ps2键盘的命令集，编写键盘驱动时有用。EDH:置位/复位 LED 指示器。键盘右上角有三个 LED 指示器,分别反映 Caps、Num 和 Scroll 三个键的 锁定情况。参数字节如表 2 所列。 -ps2 keyboard command set, the preparation of useful keyboard-driven. EDH: Set/reset LED indicator. The upper right corner of the keyboard has three LED indicators, respectively, reflecting the Caps, Num and Scroll Lock keys in three cases. Parameter bytes as listed in Table 2.

T9中文输入法，可嵌入自己的系统，增加系统的价值-Chinese T9 input method can be embedded in the system, increasing the value system

zlg7289在51上的应用程序。经调试通过。-zlg7289 in 51 applications. After debugging through.

用于单片机的PID调节子程序,经过多次改进,非常实用简单,已经用于多个产品上,非常稳定可靠-for SCM PID subroutine result, a very simple and practical. has been used for many products, a very stable and reliable