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DS18B20LowPower
说明： stm32f103c8t6驱动DS18B20温湿度传感器程序源码(stm32f103c8t6,DS18B20)
- 2019-06-30 08:30:23下载
- 积分：1
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ps32
PS32自动气象站的嵌入式代码，stm32主控，包裹GPRS模块M33G和AD7792，ublox电子罗盘，GPS等驱动。C代码(PS32 AWS embedded code, stm32 master, wrapped GPRS module M33G and AD7792, ublox electronic compass, GPS and other drivers. C code)
- 2014-01-23 14:52:13下载
- 积分：1
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410
C8051F410开发程序，包括串口程序，I/O程序(C8051F410 development process, including the serial program, I/O process)
- 2011-05-17 14:36:39下载
- 积分：1
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Proteus STM32 led
在实现流水灯闪烁在proteus8.6使用的单片机是STM32F103R6(realize led SCM STM32F103R6 is used in Proteus 8.6 to realize pipeline lamp flickering.)
- 2020-09-26 23:37:48下载
- 积分：1
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EWSTM8
说明： IAR for stm8编译环境和配置参考模板(IAR for stm8 Compilation environment and configuration reference template)
- 2020-06-18 11:20:02下载
- 积分：1
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STC12C5608AD
stc12c5608AD转换程序测试成功(AD conversion)
- 2011-11-16 19:48:58下载
- 积分：1
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PWM
三相电压型逆变器仿真 双闭环控制 电流内环电压外环(three phsae convertor three phsae convertor three phsae convertor three phsae convertor )
- 2012-05-04 12:03:44下载
- 积分：1
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机器人四级上课用程序
说明： 机器人技术等级考试，电机调速程序,针对aduino单片机的，简单的小程序，红外遥控(Motor speed regulation program)
- 2020-06-22 22:20:01下载
- 积分：1
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shuanglushuzihecheng
摘要
电能表作为用电量的测量工具广泛的应用于各种场合。在电能表校表系统中,需要的最基本的输入信号源是高精度双路正弦信号源,并要求可对其频率、相位、幅值进行调节,来对电能表进行校准。
基于单片机的程控信号源设计，运用数字调相、数字调幅和数字调频等技术，要求实现相位、幅度、频率的高精度程控调节。本文设计了一种利用锁相环频率合成技术和数字波形合成技术组成的程控低频正弦波信号发生器，并给出了调幅、调频、调相的实用电路，频率调节通过改变8253计数器的分频系数来实现；相位调节由51单片机预置计数器的计数初值来完成，幅度的调整通过改变DAC1210II的参考电压来实现，使频率分辨率达0.01Hz,相位调节精度达0.1°，并介绍电路中的主要芯的功能及使用。输出正弦波频率和幅值的精度高，稳定性好，失真度低，电路简单、可靠、便于程控。
关键词：数字合成信号源；程控；调幅；调频；移相；
(Abstract
Meter consumption as the size of the measurement tool is widely used in various occasions. In single-phase power meter verify system, the most basic needs of the input signal is the source of two-way high-precision sine signal source, and may request its frequency, phase, amplitude in a certain step to adjust to the imitate of the actual electricity load with a right meter calibration.
Design of the programmable signal supply controlled source，which based on the MCU，including digital phase adjustment，distal amplitude adjustment，digital frequency adjustment etc．The system should achieve high quality digital adjustment of phase, amplitude and frequency. This paper describes the use of a PLL frequency synthesizer technology, and digital wave form synthesis technology consisting of program-controlled low-frequency sine wave signal issued devices, and applies the amplitude， frequency， phase of practical circuit. Frequency can be adjusted through a change in the 8253 counter-frequ)
- 2021-04-08 20:19:00下载
- 积分：1
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clock
本程序利用51单片机的定时器中断产生时间信号，同时具有通过按键调节时间的功能，还可设置闹钟(This procedure using 51 single-chip timer interrupt time signal, but also has the functions via buttons adjust the time, but also set the alarm)
- 2011-07-27 19:20:57下载
- 积分：1
