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D1开发板学习资料例程
esp8266ardino 开发板 例程 学习资料(ESP 8266ardino Development Board Routine Learning Materials)
- 2020-06-19 02:20:01下载
- 积分：1
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SeparatorAttributeDescriptor
An exception that indicates that garbage-collector is finalizing a database object that is not explicitly closed.
- 2014-02-27 10:20:50下载
- 积分：1
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DS-01444A
光伏微网逆变器设计手册，从光伏板特性分析到DCDC反激升压再到DCAC逆变最后到锁相环检测并网都详细说明。(PV micro-inverter design manual, from the characteristics of photovoltaic panels to boost DCDC flyback DCAC inverter then finally to the phase-locked loop detection and network are described in detail.)
- 2013-09-21 10:35:45下载
- 积分：1
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Stepper-motor-drive
Stepper motor drive key technologies
- 2009-11-30 20:05:51下载
- 积分：1
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ADS_PT100 _4#
利用PLC1114单片机来采集8路PT100温度传感器，经过标定计算得出待测环境的准确温度信息。(The 8 channal PT100 temperature sensor is collected by PLC1114 single chip microcomputer, and the accurate temperature information of the environment is obtained through calibration calculation.)
- 2018-01-18 20:31:05下载
- 积分：1
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I-LOVE-U
数码管显示I LOVE Y，此程序为51单片机程序，如需使用请自我更改(The digital display I LOVE Y-this program for 51 single-chip program, For self-use, please change)
- 2012-04-13 14:20:42下载
- 积分：1
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sanjiaobo
51单片机中利用PCF8591进行D/A转换在示波器中显示三角波(51 MCU PCF8591 using the D/A converter in the oscilloscope display triangular wave)
- 2013-07-10 16:49:03下载
- 积分：1
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example6_TIM
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 )
- 2012-05-18 18:28:47下载
- 积分：1
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uc-001-n
This test does only covers cases where the Additive or Mulplicative expression ToPrimitive is a string.
- 2014-02-11 15:43:56下载
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platsmp-brcmstb
Broadcom STB CPU SMP and hotplug support for ARM.
- 2015-06-25 11:20:37下载
- 积分：1
