本程序功能是利用单片机控制用户板上的小键盘，将按下的键通过单片机的串口发送给PC机，在PC机串口助手显示出来。用行翻转法的方法来识别输入的键盘。 二、通过单...

第二近轴光的实际参数.cpp 近轴光线计算-The second shaft of light near the actual parameters. Cpp

故障指示器；单相接地故障；电流互感器；全波整流有效值电路；单片机-Fault Indicator Single-phase Ground Fault Current Transformer RMS circuit full-wave rectifier SCM

330PWM输出的简易程序，供C8051F330的初学者参考

通过单片机定时器 来设定任意比的pwm波-Through the single-chip microcomputer to set arbitrary timer pwm wave ratio

C8051F040 SMBUS/// /////主机接收调试程序-C8051F040 SMBUS//////// receiving host debugger

这是一个ＬＣＤ　的显示驱动程序，他能够实现显示两行字符的功能-This is a LCD display driver, he was able to show two lines of characters realize the function of

用89S52进行DS1820温度读取程序-89S52 used for DS1820 temperature reader

* 硬件结构： PA0-5对应６个ＬＥＤ数显管的位 ，PC0-7对应各ＬＥＤ数显管的段 ，PB4-7为键盘。 * 软件描述： 上电后，时钟从00.00.00（时/分/秒）自动走时，在走时状态时 ， 按PB4（设定 * 键）超过3秒可循环选择调整时间/工作参数 ，接着按PB5以确定选择的操作 ，进入调整操作后 ， * 按PB5选择欲调整参数，按PB6（增加键）完成调整参数操作 。按PB7，进入时控运行，PB1亮， * 再按PB7停止时控运行，回显走时。在定时到时，PB0点亮。- * Hardware architecture: PA0-5 corresponds 6 LED numbers to reveal the tube the position, PC0-7 corresponds each LED number to reveal the tube the section, PB4-7 is a keyboard. * Software description: After on electricity, clock from 00.00.00 (when/a minute/second) is in luck automatically, when is in luck the condition, according to PB4 (hypothesis * The key) surpasses for 3 seconds to be possible to circulate the choice time/operational parameter, then presses PB5 by to determine the choice the operation, after enters the adjustment operation * Wants according to the PB5 choice to adjust the parameter, (increases key) according to PB6 to complete the adjustment parameter operation.According to PB7, enters when controls the mov

PCB电路板。键盘控制，矩阵键盘的电路图。-PCB circuit boards. Keyboard control, matrix keyboard circuit.

C8051F040 t3可调频率方波输出例程-C8051F040 adjustable frequency square-wave output routines