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说明：  可应用按键实时改变pwm输出占空比，同时有端口进行相应的pwm捕获。相应的端口配置在程序注释处。(It can change the duty cycle of PWM output in real time by using keys, and at the same time, it has ports to capture the corresponding pwm.)

51单片机数码管静态显示，计数器功能，学习如何对数据管进行操作(51 MCU digital static display, the counter function, learning how to operate the data management)

说明：  m128的pwm控制，控制呼吸灯，已经编译过了(PWM control of M128)

TMS320C2x Evaluation Module

PLC电子钟的毕业设计，毕业设计，电子毕业设计QQ群 48415131 诚邀100名 高手加盟 (Graduation design, electronic design graduate QQ group 48415131 100 masters are invited to join)

AVR Mega128单片机产生占空比13的38KHZ的方波(AVR Mega128 microcontroller generates Duty 1/3 38KHZ square wave)

本例展示了如何设置TIM，用它来测量一个外部输入信号的频率和占空比。 TIM2时钟设置为72MHz，预分频设置为0，TIM2计数器时钟可表达为： TIM2 counter clock = TIMxCLK / (Prescaler +1) = 72 MHz，因此可测量的最小频率值为1100Hz。 设置TIM2工作在PWM输入模式（PWM Input Mode），把外部信号作为输入连接到TIM2通道2。 利用TIM2计数器中断来测量信号的频率和占空比。在TIM2_IRQHandler中，计算信号的频率和占空比，方法如下： 变量"Frequency"为由下式得到的外部信号频率： Frequency = TIM2 counter clock / TIM2_CCR2 单位Hz 变量"Duty_Cycle"为由下式得到的外部信号占空比： Duty_Cycle = (TIM2_CCR1*100)/(TIM2_CCR2) 单位 (This example shows how to set up the TIM, and use it to measure the frequency and duty cycle of an external input signal. TIM2 clock set to 72MHz and the prescaler is set to 0, TIM2 is counter clock can be expressed as: TIM2 is counter clock = TIMxCLK/(prescaler. Ppls1) = 72 MHz, the minimum measurable frequency value of 1100 Hz. Set TIM2 PWM input mode (PWM Input Mode), the external signal as an input connected to the the TIM2 Channel 2. TIM2 counter interrupt signal to measure frequency and duty cycle. Calculate the frequency and duty cycle of the signal in TIM2_IRQHandler as follows: variable " Frequency" on the grounds of the external signal frequency by the following formula: Frequency = TIM2 is counter clock/TIM2_CCR2 unit Hz variable Duty_Cycle " on the grounds of the following formula to get external duty cycle: Duty_Cycle = (TIM2_CCR1* 100)/(TIM2_CCR2) in )

使用51单片机和18B20采集温度，并用数码管显示(Use 51 And 18B20 collecting temperature and with digital display)

与主站IEC101规约通讯，完成与科东公司主站、国电南自、南瑞科技等公司主站通讯 Tornado2.0编译，无故障运行与研华HE-8XX系列主板3年以上 解压密码luckycy(master IEC101 and the Statute of communication, complete with the East Branch Corporation stations, the South since the country's electric, NAN technology companies master communications Tornado2.0 compiler, fault-free operation with the China Institute HE-8XX series of the Main Board for three years or more extract passwords luckycy)

红外解码数码管显示,用你一个外部中断和一个定时器中断来做的，虽然可以解码，但是效率不高，不建议在商用产品上使用。(IR decoding the digital tube display, you use an external interrupt and a timer interrupt to do, although it can be decoded, but efficiency is not high, not recommended for use in commercial products.)