IEEE754 浮点数与半浮点数相互转换

基于MEGA8的电子钟源代码，有时分秒日月年而且还加入了润年的算法-based Zhong Yuan MEGA8 electronic code, the moon and sometimes accurate, but also joined the algorithm Runnian

单片机初学入门程序,不停地循环显示数字0~9。-Beginners Introduction to SCM process, a continuous loop display numbers 0 to 9.

共搜集了13个有关51单片机的一些基本程序，代码有汇编写成，内容包括计数器、温度检测等等。-collected a total of 13 of the 51 SCM some of the basic procedures, a compilation of code written, including counter, temperature measurement, and so on.

三相步进电机的三相六拍工作方式，正转的绕组通电顺序：A、AB、B、BC、C、CA、A，反转的通电顺序：A、AC、C、CB、B、BA、B、A。 由于步进电机转子有一定的惯性以及所带负载的惯性，故步进电机的工作过程中不能及时的启动和停止，在启动时应慢慢的加速到预定速度，在停止前应逐渐减速到停止，否则，将产生失步现象。 步进电机的控制问题可总结为两点： 1、产生工作方式需要的时序脉冲； 2、控制步进电机的速度，使它始终遵循加速、匀速、减速的规律工作。 -Three-phase three-phase stepper motor six shot work, is to order the winding power: A, AB, B, BC, C, CA, A, reverse the order of power: A, AC, C, CB, B, BA, B, A. As the stepper motor rotor has a certain degree of inertia, as well as brought about by the inertia load, the stepper motor during the course of work should not start and stop time, start to be slowly accelerated to a predetermined speed, the stop should be to slow down gradually to the stop, otherwise, will result in out-of-step phenomenon. Stepper motor control problems can be summarized in two points: one, resulting in the need to work the timing pulse 2, control the speed of stepper motor, so that it always followed acceleration, velocity, deceleration of the law of the work.

模拟串口的实用程序，很多没有串口的单片机可以借鉴，或者需要多个串口的人也可以借用-Simulation of serial utility, not a lot of single-chip serial port can learn from, or those who require multiple serial ports can also be borrowed

DS18B20驱动程序,已通过实物认证.-DS18B20 driver has passed certification in kind.

SPCE061A单片机上LED驱动源程序，包含LED配置显示-the driver source of the LED of the SPCE061A

msp430利用SPI接口与CC2500通讯，来实现与其他利用CC2500为无线收发器的单片机通讯-MSP430 and CC2500 using SPI interface communication, to achieve with other use of CC2500 transceiver for wireless communication microcontroller

在有线电视中实现程控有源滤波器设计。为了充分利用设备和传输线,需要一种具有频率选择的网络―滤波器,将同一线 路上不同的信号分开,在电视机中也需要不同的滤波器(即选择有用信号,抑制无用信号) 。下面利用8051 单片机与12 位分辨率的DAC1208 数模转换芯片相结合的系统实现时间常数可程控有源滤波器设计,阐述了硬件结构与软件设计-In cable television in the realization of program-controlled active filter design. In order to make full use of equipment and transmission lines, the need for a frequency selective network- filter, the same lines separate different signal in the TV also requires a different filter (ie, choice of useful signals and suppress unwanted signals). Following the use of 8051 and 12-bit resolution digital-to-analog converter DAC1208 chip combining system time constant can be program-controlled active filter design, the hardware structure and software design

该源程序是通过对键盘的扫描方式对键盘按键的识别-The source is the keyboard scan mode by the keyboard keys to the identification of