4x4keyboardscan

介绍了一种SPI从机的接口verilog编码(verilog code for spi slave )

基于AT89C51单片机的出租车计价器的程序设计(AT89C51 microcontroller Taximeter-based program design)

PMAC 中文手册（推荐详细）PMAC（可编程多轴运动控制器），是美国Delta Tau Data System 公司于推出的PC 机平台上的运动控制器,是一个完全开放的系统。(PMAC Chinese Manual (Recommended Details))

Using MSChart Object to show data on form

pca 用于定时器功能 pca可用于捕捉，定时，pwm输出等功能(pca pca can be used to capture, timing, pwm output for timer function)

12C5A60S2 EEPROM 的读写操作(12C5A60S2 EEPROM read_write)

dmc2610运动控制卡编写IO输出，对想编写运动控制的人有非常大的帮组(the dmc2610 motion control card write IO output, very large help group for people who want to write the motion control)

Delta servo drive a new generation of hardware ASDA-B2 manual programming is an electrical engineer hardware reference manual,

MSP430F149控制SD卡读写操作，支持FAT16文件系统(The MSP430F149 Control SD card read and write operations to support the FAT16 file system)

自动交通控制系统用红、绿、黄三支共两组发光二极管表示交通信号灯，利用单片机模拟有时间显示的定时交通信号灯控制管理。信号灯的变化规律可如下： 1）放行线：绿灯亮放行25秒，黄灯亮警告5秒，然后红灯亮禁止。 2）禁示线：红灯亮禁止30秒，然后绿灯亮放行。 3）当某一方向的红灯亮时，若该方向有车通过，则用扬声器声报警。（撞红灯信号可用3-5V模拟量表示）(Automatic traffic control system using red, green, yellow light-emitting diodes, said a total of three traffic lights, the use of single-chip analog time display on a regular traffic signal control and management. Changes of lights to be as follows: 1) Release Line: green clearance 25 seconds, the yellow light warning for 5 seconds, then the red light is prohibited. 2) ban shows lines: the red light is prohibited for 30 seconds, then the green light to release. 3) When the red light in one direction, if the direction of the car through, the alarm speaker sound. (Hit the red signal available 3-5V analog representation))