是基于c8051f040单片机开发的电机转速测试程序。

环境测量系统 -Environment environment measurement system measurement system

本代码实现4×4键盘操作 对键盘进行扫描取得键入值-Realize the code 4 × 4 keyboard operation of the keyboard type to be scanned to obtain the value of

pid控制的源程序，很不错的，请大家注意关注啊-pid control source, it is good, draw attention to concerns ah

IC卡读写程序(c51)不错-IC card reader (c51) Yes

本程序用于用单片机控制步进电机的转动。用单片机的某一个引脚实现控制，如果引脚电平为高则实现正转，反之为反转。所用单片机为日立系列h83664十六位单片机。本代码使用c语言实现，开发环境为日立系列单片机专用开发环境-This procedure for the use of single-chip stepper motor rotation control. With a pin MCU control, if the pin level is higher then realize to the contrary, for the inversion. Used in single-chip for Hitachi Series 16 Singlechip h83664. This code uses the c language, development environment for the Hitachi series of single-chip dedicated development environment

MAX1247子程序,实现12位高精度串行AD转换-MAX1247 subroutine, 12 realize high-precision serial AD converter

这个软件是设置时间的程序。可以把时间设置在寄存器中保存。-The software is set up time-consuming procedures. Time settings can be saved in the register.

avr单片机中TWI主机发送和主机接收程序代码

电池供电单片机系统延长使用时间的几点有效措施-battery-powered SCM system to extend the use of time a few effective measures

单片机CPU时序-SCM CPU timing