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iv_4_20ma
介绍如何简单可靠而方便测量 4～20mA 信号的文章。许多仪器仪表在远距离传送信号时，都有可能采取 4～20mA 的方式进行传送。本文对使用运算放大器或者不用运算放大器的场合都有介绍。给出了接口电阻的计算方法以及调整4mA＝零点，20mA＝满度的详细说明。并附有局部连接的原理图。(How simple, reliable and convenient measurement of 4 ~ 20mA signal article. Many instruments in the long-distance signal transmission, may take 4 ~ 20mA way transmission. In this paper, an operational amplifier or op amp do not have a description occasions. Shows the calculation of the interface resistance and adjust the 4mA = zero, 20mA = full scale details. Local connections together with the schematic.)
- 2010-11-15 05:16:51下载
- 积分：1
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stm32两路相位差180度PWM
stm32高级定时器1产生两路相位差180度PWM，频率、占空比可调。(STM32 produces two phase difference 180 degree PWM)
- 2017-10-25 10:40:33下载
- 积分：1
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led
实现流水灯的点亮，SCT12C52开发板(
To achieve the water lights lit, SCT12C52 development board)
- 2016-12-05 11:08:33下载
- 积分：1
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ADC_DualModeInterleaved
stm32f4 adc 的代码，双通道，用DMA保存数据。(stm32f4 family c code, adc
This example provides a short description of how to use the ADC peripheral to
convert a regular channel in Dual interleaved mode using DMA in mode 3 with 5Msps.
DMA mode 3 is used in interleaved mode in 6-bit and 8-bit resolutions.
The Dual interleaved delay is configured 6 ADC clk cycles.
On each DMA request (two data items are available) two bytes representing two
ADC-converted data items are transferred as a half word.
The data transfer order is similar to that of the DMA mode 2.
A DMA request is generated each time 2 data items are available
1st request: ADC_CDR[15:0] = (ADC2_DR[7:0] << 8) | ADC1_DR[7:0]
2nd request: ADC_CDR[15:0] = (ADC2_DR[7:0] << 8) | ADC1_DR[7:0]
The ADC1 and ADC2 are configured to convert ADC Channel 12, with conversion
triggered by software.
By this way, ADC channel 12 is converted each 6 cycles.
In this example, the system clock is 168MHz, APB2 =84MHz and ADC clock = APB2 /2.
Since ADCCLK=)
- 2013-10-14 19:06:26下载
- 积分：1
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51单片机直流电机小风扇
说明： 使用AT89C52单片机开发，功能是控制直流电机运行，可调速。(Developed with AT89C52 single chip computer, the function is to control the operation of DC motor and speed regulation.)
- 2020-07-02 16:00:02下载
- 积分：1
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2812-sch
奉献：2812的原理图
[日期：2005-11-29] 来源：侃单片机 作者：etiller [字体：大 中 小]
()
- 2007-08-06 09:59:18下载
- 积分：1
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%5BTVrip%5D ACCA13 01 - 12
dl tlqkffhaemf whssk vlrhsgkrpgksp
- 2018-03-27 23:41:17下载
- 积分：1
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stm32f407 手写识别
基于stm32f407的手写识别程序，亲测可用(Handwriting recognition program based on stm32f407)
- 2018-03-14 22:02:21下载
- 积分：1
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2016.3.29_slaver
两个STM32通讯，工作在从模式的SPI源码，调试通过(Two STM32 communication, working the model of SPI source code, debugging through
)
- 2016-08-25 10:17:28下载
- 积分：1
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AD7606资料-V0.8
说明： 高精度数据采集器源程序，可以直接应用于实际项目中(High precision data collector source program, which can be directly applied to the actual project)
- 2020-03-11 18:49:57下载
- 积分：1
