12864

parallel quicksort algorithm and implimentation

频率相位测量的程序。实现相位差的测量与显示。(Frequency phase measurement process. Implementation phase of the measurement and display.)

NTC热敏电阻计算器（B值、R25、指定温度、指定阻值均可计算，给定四个参数即可计算第五个参数）(NTC thermistors Calculator (B value, R25, specified temperature, the resistance can be specified calculation, four parameters can be calculated given the fifth parameter))

说明：  power electronic machine model

通过51单片机串行转并行，扩展IO口，实现四个步进电动机的控制。(By 51 microcontroller serial to parallel IO expansion port, to achieve four stepper motor control.)

基于VC++的，以操作文件的方式（CreateFile,WirteFile,ReadFile）来操作串口实现的射频卡门禁系统，实现了包括读卡写卡，寻卡防冲突等功能。(Based VC++ in order to manipulate papers (CreateFile, WirteFile, ReadFile) to operate the serial interface of the RF card access control systems, including the realization of the card reader to write, look for cards anti-collision function.)

51单片机驱动74ls164程序 (51 Microprocessor 74ls164 program)

用stm32单片机进行pwm输出和ADC设置(USE STM32 MCU OUT PUT PWM WAVE AND ADC)

状态机按键检测，实现单击双击多击功能,单片机用的是STM8L(Key detection state machine to achieve multi-click-click, double-click function)

高精度电压表(24bit) VB源程序,简单修改可实现多量程(precision voltage (24bit) VB program, a simple change can be realized more range)