USB_data_acquisition_system

单片机汇编代码，有大部的多字节运算，通信和字符变换程序(MCU code compilation, the most multi-byte computing, communications and characters transform procedures)

32位单片机HR8P506上运行FreeRTOS，HR8P506是一款Cortex-m0内核的国产单片机，支持2.5-5.5V的宽电压，36KB Flash和8KB SRAM能够满足绝大多数的应用开发。(32-bit MCU HR8P506 runs FreeRTOS. HR8P506 is a domestic MCU with cortex-m0 kernel, which supports a wide voltage of 2.5-5.5v, 36KB Flash and 8KB SRAM which can meet most application development.)

周立功的nxp lpc1114adc转换例程 中断模式转换模式 内含串口通信 adc转换(zlg nxp lpc1114adc conversion routines interrupt mode conversion mode adc conversion includes serial communication)

本文以霍尔茨(HOLZER)法作为船舶轴系扭转振动的计算方法，着重研究了船舶轴系自由扭振的计算与分析，并对轴系扭振产生原因进行了分析，提出了一系列减振方法，以保证船舶动力装置的安全正常运行。(In this paper, Holtz (HOLZER) Act as the ship shafting torsional vibration calculation methods, focusing on the calculation and analysis of ship shafting torsional vibration of freedom, and the shaft torsional vibration causes analyzed, proposed a series of less vibration methods to ensure the safety of the ship s power plant running.)

无刷电机驱动程序 霍尔传感器 PID算法调节(Brushless Motor Driver Hall sensor PID algorithm)

基于STM32F103利用SPI协议，RC522多功能读取，修改，删除卡片(Based on STM32F103 and SPI protocol, RC522 can read, modify and delete cards with multiple functions.)

智能台灯系统，实现了语音播报，自动调光，远程控制，灯光切换等智能系统功能。克服了传统台灯供电方式单一等多种特点。本系统主要由单片机控制系统和硬件系统组成，主要由STM32F407微处理器、触控液晶彩屏、ADC电压监控、超声波测距监测、音乐播放系统、灯光控制组件和多路系统电源构成。智能学习台灯采用PWM数字调光和超声波测距技术以及人体红外感应技术，实现灯光亮度和模式调节。(Intelligent desk lamp system realizes the functions of voice broadcasting, automatic dimming, remote control, light switching and other intelligent systems. It overcomes many characteristics such as single power supply mode of traditional lamp. This system is mainly composed of single chip computer control system and hardware system. It is mainly composed of STM32F407 microprocessor, touch LCD color screen, ADC voltage monitoring, ultrasonic ranging monitoring, music playing system, light control module and power supply of multi-channel system. Intelligent learning desk lamp uses PWM digital dimming and ultrasonic ranging technology as well as human infrared sensing technology to achieve light brightness and mode adjustment.)

桥梁工程常用软件midas civil的建模过程实例手册，按步骤详细介绍了建模的过程。(Bridge engineering modeling software used midas civil instances manual detailing the step by step process of modeling.)

使用STC89c58RD+系列单片机控制手机收发短信息的原理、硬件电路、PDU数据格式和短信息发送/接收程序，同时给出了一个应用实例。GSM采用的是西门子的TC35i,包括RS232串行接口,单片机采用STC89c58RD+，内部扩展RAM有256+1024字节的空间，可以作为短信缓冲区,1602液晶显示器（16引脚）作为显示模块和程序调试用(Use STC89c58RD+ Series MCU control handset to send and receive text messages of principle, the hardware circuit, PDU data formats and short message send/receive process, at the same time gives an application example. GSM is used by Siemens TC35i, including the RS232 serial interface, single-chip microcomputer used STC89c58RD+, Internal expansion RAM has 256+ 1024 bytes of space, can serve as a message buffer, 1602 Liquid Crystal Display (16 pin) as the display module and procedures for debugging)

ADC0808的数字电压表C语言-仿真实例(The ADC0808 The digital voltmeter to the C language- the simulation examples)