assessment_Ms_models

说明：  OLED 屏幕的中文参考手册，详细的记录了OLED 的所有信息，包含了基本的使用方法，对新手十分适合(OLED screen Chinese reference manual, detailed records of all the information of OLED, including the basic use of new novice is very suitable.)

1、万年历，2、时间，3、星期，4、温度显示，(1, million years 历, 2, hours, 3, star period, 4, temperature 显示,)

基于51单片机的proteus仿真系统，其中包括AD转换模块的应用(51 single-chip microcomputer-based simulation system of proteus, including the application of AD converter module)

本程序目的是提供使用stm32串口收发一帧数据的一种方法，采用中断方式接受和发送，每进一次中断接收或发送一字节，可以实现pc机与板子通信或板子与板子间通信。注意本程序中外接高速晶振为12M赫兹，而大部分板子为8M赫兹，本程序所用芯片是stm32RBT6(The purpose of this procedure is to provide a method of using STM32 serial port to send and receive a data, using interrupt mode to receive and send, every one into the time interrupt receiving or sending a byte, can realize PC and the communication or board and board communication. Note that this procedure the external high-speed crystal oscillator for the 12M Hz, while the majority of board is 8M Hz, the chip used in this procedure is stm32RBT6)

该程序为AD转换器ADC0832的程序模块(ADC0832 code)

发射端程序 单片机STC15L204EA 发射模块NRF24L01(NRF24L01 transmitter module STC15L204EA)

关于数控恒流源的设计报告包含程序代码，原理图(About the numerical constant current source design reports contain program code, schematics)

通过单片机AT89C2051采用DS1820上的温度,并通过串口发出(The temperature on DS1820 is adopted by AT89C2051 single chip computer and sent out through serial port.)

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)

FlexRay通信协议中文版 适用于CAN的进阶教学(FlexRay Communication Protocol Chinese Version Applicable to Advanced Teaching of CA)