serial Function Set Easy

用msp430对x1228完全操作， x1228，一个串行的日立芯片，在单片机系统中，功能比较强大的日历芯片-with Controller fully operational right x1228, x1228, a serial Hitachi chip, the microcontroller system, functions more powerful chips Calendar

条形电子屏的源代码，使用keil c51编译。-strip electronic screen source code, the use of c51 Keil compiler.

基于at89c51snd1cMP3源程序-Based on at89c51snd1cMP3 source

C8051F120初始化SPI，启动CC2420。通过将CC2420 得VREG_EN 引脚置位高电平使能Voltage regulator，等待其稳定；然后重新启动CC2420 芯片，等待晶振起振。-Initialize SPI, start the CC2420. By CC2420 have VREG_EN pin high to enable the set Voltage regulator, waiting for their stability and then re-start the CC2420 chip, since waiting for crystal oscillator.

pic16f上12864液晶显示，ad转换程序，时钟显示程序，串口程序。-12864 LCD pic16f on, ad conversion process, the clock display program, serial program.

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.

mcs-51单片机实用子程序库-mcs-51 microcontroller practical subroutine library

CPU为CSP8051F020，有两个串口和一个SPI口。 一个串口通过数传电台和中控室计算机通信 另一个串口和PLC的MODBUS口通信。 SPI口控制数码管的显示。 已经在工程上应用。-CPU for CSP8051F020, two serial and one SPI mouth. A serial data transfer through the radio and the computer control room of another serial communications and MODBUS PLC Communication. I SPI digital control of the show. In engineering applications.