MEGA8同时控制四个独立的使用

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.

MCU与PC键盘通信程序，接口为PS/2；I2C通用驱动程序-MCU with a PC keyboard communication procedures, interface for PS/2; I2C common driver

时钟芯片ds12c887线片驱动程序，可直接应用-Clock Chip ds12c887-ray driver, can be directly applied

一个用51MCU做电流表的产品.源代码.电流精度达到1MA有级别.-Ammeter used to do a 51MCU products. The source code. Current accuracy level 1mA there.

用凌阳16位单片机测试输入波形的频率，动态刷新显示-Sunplus 16-bit single-chip microcomputer used to test the frequency of input waveform, dynamic refresh display

基于MSP43O单片机的I2C总线软件包-MSP43O based SCM package I2C Bus

SPCE061 2K SRAM 的读写。A口低8位控制LED，当读写错误时，点亮LED,打开方式请用凌阳自带的编译器-SPCE061 2K SRAM read and write. A low-mouth eight control LED, when read and write error, lit LED, open the way please use Sunplus built-in compiler

基于51单片机的温度和电压采集与循环显示的控制程序，其中温度传感器为LMA95，采用I2C总线传输，显示器为8段LED数码管-51 single-chip-based temperature and voltage of the cycle of acquisition and display of the control procedures, including temperature sensors for LMA95, using I2C bus transmission, display for the 8 LED digital tube

TI的2.4G芯片CC2500的开发资料,PDF,程序,原理图都有了,PCB不知啥软件做的,打不开.-TI

stc89C51读写AT45DB041的源码，实现了数据手册中的所有命令