基于C#的考勤系统

说明：  an41908是一款专业的camera lens的驱动IC芯片(AN41908 is Professional camera lens driver IC)

AES128_GCM算法源程序。接口比较简单。AES使用word加密，速度比一般的字节要快很多。算是软件加密中写得比较好的了。

//---->>>>----文件描述：EC11旋转编码器底层驱动程序-------文件版本：V1.0---->>>>--------注意事项：EC11旋转编码器的扫描时间间隔控制在1~4ms之间，否则5ms及以上的扫描时间在快速旋转时可能会误判旋转方向--------

当时做一个项目时找来的，对其进行了一些改造，用于花样按钮(At that time got from doing a project and to carry out a number of transformation, for the pattern button)

MCP2515 驱动，直接修改mcp2515.h里面端口即可移植使用。(MCP2515 driver, directly modify the inside ports of mcp2515.h can be transplanted.)

Foreword The use of reprogrammable memory technology in vehicle electronic control units (ECUs) has increased in recent years, and is expected to continue in the future. Use of this technology has increased the flexibility of being able to use a single ECU hardware part to be used in many different vehicle configurations, with the only difference being the software and calibrations programmed into the unit. Reprogramming of those ECUs in the service environment also allows for ease of field modification of system operation and calibrations. Variations in reprogramming capability and the multiple tools necessary to reprogram vehicles are a burden on aftermarket repair facilities that service different makes of vehicles.

利用反正切进行角度计算，可用作DSP上的锁相环(can be used as SPLL on DSP)

Program to display the fraction of a nuumber

读取DS18B20进行温度测量以后的结果并在1602液晶上显示。 基于DS18B20的温度控制器。温度控制范围在20~30℃，当温度大于30度时，停止加热，小风扇通电开始降温，绿灯亮。温度低于20度时，小风扇停止通电，开始加热。红灯亮。全过程有LCD数字温度显示。(Read DS18B20 temperature measurement after the results of the 1602 LCD display. Based on DS18B20 temperature controller. Temperature control range of 20 to 30 ℃, when the temperature is greater than 30 degrees, stop heating, small fan is energized to start cooling the green light. When the temperature is below 20 degrees, a small fan is stopped is energized, the heating is started. Red light. The whole process of LCD digital temperature display.)