In the early days, embedded systems were built primarily by engineers in a pretty exclusive club. Embedded devices and software tools were expensive, and building a functional prototype required significant software engineering and electrical engineering experience.
标签: Arduino Gadgets Make Bots and
上传时间: 2020-06-09
上传用户:shancjb
《Proteus在MCS-51&ARM7系统中的应用百例》(EDA应用技术)以Proteus嵌入式虚拟开发系统为基础,结合第三方专业的编译工具IAR Embedded Workbench440A、ADS1.2、Keil8.02版本,选用Atmel公司的89C51芯片和Philips公司的ARM7芯片LPC2106,以精选的100个范例。
标签: PROTEUS ARM7 MCS 51 系统 中的应用
上传时间: 2020-11-01
上传用户:
STM32 FOTA demo就是通过MQTT协议进行MCU固件新版本信息的推送。Paho是一个开源的MQTT客户端实现,它提供了多种开发语言下的实现。在此demo中,用的是embeddedC这个版本
上传时间: 2022-02-23
上传用户:得之我幸78
高清版U-Boot 开发资料2020.Das U-Boot 是一个主要用于嵌入式系统的引导加载程序,可以支持多种不同的计算机系统结构,包括PPC、ARM、AVR32、MIPS、x86、68k、Nios与MicroBlaze。这也是一套在GNU通用公共许可证之下发布的自由软件。Das U-Boot可以在x86计算机上建构,但这部x86计算机必须安装有可支持特定平台结构的交互发展GNU工具链,例如crosstool、Embedded Linux Development Kit (ELDK)或OSELAS.Toolchain。U-Boot不仅仅支持嵌入式Linux系统的引导,它还支持NetBSD, VxWorks, QNX, RTEMS, ARTOS, LynxOS, android嵌入式操作系统。其目前要支持的目标操作系统是OpenBSD, NetBSD, FreeBSD,4.4BSD, Linux, SVR4, Esix, Solaris, Irix, SCO, Dell, NCR, VxWorks, LynxOS, pSOS, QNX, RTEMS, ARTOS, android。这是U-Boot中Universal的一层含义,另外一层含义则是U-Boot除了支持PowerPC系列的处理器外,还能支持MIPS、 x86、ARM、NIOS、XScale等诸多常用系列的处理器。这两个特点正是U-Boot项目的开发目标,即支持尽可能多的嵌入式处理器和嵌入式操作系统。就目前来看,U-Boot对PowerPC系列处理器支持最为丰富,对Linux的支持最完善。其它系列的处理器和操作系统基本是在2002年11 月PPCBOOT改名为U-Boot后逐步扩充的。从PPCBOOT向U-Boot的顺利过渡,很大程度上归功于U-Boot的维护人德国DENX软件工程中心Wolfgang Denk[以下简称W.D]本人精湛专业水平和执着不懈的努力。当前,U-Boot项目正在他的领军之下,众多有志于开放源码BOOT LOADER移植工作的嵌入式开发人员正如火如荼地将各个不同系列嵌入式处理器的移植工作不断展开和深入,以支持更多的嵌入式操作系统的装载与引导。
标签: U-Boot
上传时间: 2022-03-10
上传用户:默默
CH341系列编程器芯片usb转串口Altium Designer AD原理图库元件库CSV text has been written to file : 1.9 - CH341系列编程器芯片.csvLibrary Component Count : 56Name Description----------------------------------------------------------------------------------------------------CH311Q PC debug port monitorCH331T Mini USB Disk ControllerCH340G CH340H USB to TTL Serial / UART, USB to IrDACH340T USB to TTL Serial / UART, USB to IrDACH340R USB to IrDA, USB to RS232 SerialCH340S_P USB to Print Port / ParallelCH340S_S USB to TTL Serial / UART, pin compatible with CH341CH341A_S USB to TTL Serial / UART / I2C/IICCH341S_P USB to Print Port / ParallelCH341A_P USB to Print Port / ParallelCH341S_S USB to TTL Serial / UARTCH341S_X USB to EPP Parallel / SPI / I2C/IICCH341A_X USB to EPP Parallel / SPI / I2C/IICCH341T USB to TTL Serial / UART / I2C/IICCH345T USB to MidiCH352L_M PCI to 8255 mode 2 Parallel for MCU and 16C550 UART / IrDACH352L_P PCI to Print Port / Parallel and 16C550 UART / IrDACH352L_S PCI to Dual 16C550 UART, TTL Serial*2 / IrDA*1CH362L PCI Device / Slave only for RAM / Expansion ROMCH364F Member of CH364 chipsetsCH364P PCI Device / Slave Embedded Flash ROM, for Expansion ROMCH365P PCI Device / Slave, for I/O port or RAM / ROMCH372T USB Device / Slave for MCU, ParallelCH372A USB Device / Slave for MCU, ParallelCH372V USB Device / Slave for MCU, ParallelCH374S USB Host & Device / Slave for MCU, parallel / SPICH374T USB Host & Device / Slave for MCU, parallel / SPICH375S USB Host & Device / Slave for MCU, parallel / UART SerialCH375A USB Host & Device / Slave for MCU, parallel / UART SerialCH375V USB Host & Device / Slave for MCU, parallel / UART SerialCH411G FDC MFM encode and decodeCH421A Dual port bufferCH421S Dual port bufferCH423D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423S I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423D_D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423S_D I2C/IIC I/O expander, 16 GPO + 8 GPIO, 128 LEDs DriveCH423G I2C/IIC I/O expander, 6 GPO + 5 GPIOCH432Q Dual 16C550 UART with IrDA, parallel / SPICH432T SPI Dual 16C550 UART with IrDACH450K 6 Digits / 48 LEDs Drive & 8x6 Keyboard, I2C/IICCH450H 6 Digits / 48 LEDs Drive & 8x6 Keyboard, I2C/IICCH450L 8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH451L 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH451S 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH451D 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH452L_2 8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH452L_4 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH452S_2 8 Digits / 64 LEDs Drive & 8x8 Keyboard, I2C/IICCH452S_4 8 Digits / 64 LEDs Drive & 8x8 Keyboard, 4 Wire Interface, SPICH453S 16 Digits / 128 LEDs Drive, I2C/IICCH453D 16 Digits / 128 LEDs Drive, I2C/IICPCI 32Bit PCI Bus, simple / short cardPCI32 32Bit PCI BusUSB USB Port
标签: ch341 编程芯片 usb 串口 altium designer
上传时间: 2022-03-13
上传用户:
VESA(EDP)显示接口技术规范,EDP 1.4技术标准描述
上传时间: 2022-03-19
上传用户:
首先下载软件,解压软件,安装在程序中找到SEGGER,选里面的J-FLASH,进入界面,刚开始的那个界面可以忽略,不用建project也可以;单击菜单栏的“Options---Project settings”打开设置,进行jlink配置;正在General选项,选择“USB”,一般都是默认配置,确认一下即可;然后在CPU选项,选择芯片型号,先选择“Device”才能选择芯片型号,芯片型号,要根据你使用的芯片进行选择;在Target interface选项 里面选择SWD模式;首先Target里面选“Connection”连接目标芯片,然后 Target--Auto进行程序烧写;首先Target里面选择“Connection”连接目标芯片,然后 Target--Auto进行程序烧写.SEGGER J-Links are the most widely used line of debug probes available today. They've proven their value for more than 10 years in embedded development. This popularity stems from the unparalleled performance, extensive feature set, large number of supported CPUs, and compatibility with all popular development environments.
标签: JLINK
上传时间: 2022-03-22
上传用户:
针对嵌入式产品程序更新问题,提出了一种基于IAP技术的STM32单片机在线固件升级方案,设计了STM32单片机最小系统硬件电路和USB转串口通信电路,并给出了Bootloader程序、APP程序、PC上机程序的实现流程.实验结果表明,该方案具有简单实用、稳定性高、维护成本低和设备使用效率高的特点,适用于嵌入式产品升级.For the problem of updating embedded products program,an online firmware upgrade scheme of STM32 single chip microcomputer based on IAP technology is proposed.This scheme not only elaborates the principle of IAP technology in detail but also provides the design of the minimum system hardware circuit of STM32 MCU,the design of USB for serial communication circuit,and the implementation flow of Bootloader program,APP program and PC program.The experiment results show that the scheme is simple,practical and highly stable.In addition,it can be used to actual embedded product upgrading,significantly reducing maintenance costs and improving the efficiency of equipment.
上传时间: 2022-03-25
上传用户:
配电网中,各种配电终端的电流、电压、有功功率及无功功率等模拟量的采集是配电网自动化的重要环节。这些模拟量的采集也是各种仪器和家用电器的必要功能。因此,设计了基于嵌入式STM32F103单片机的交流电压、交流电流及有功功率的采集系统,通过电压互感器TV1005M和电流互感器TA1005M分别检测交流电压和交流电流值;屏幕或者手机APP和WiFi模块互联后,可以实时显示交流电压、交流电流、功率及电量值;通过设定阈值功率,可以实现对电流的监控和对电路的保护。In the distribution network,the collection of analog,such as current,voltage,active power,and reactive power at various distribution terminals is a very important part of distribution network automation. These analog acquisitions are also for various instruments and household appliances. Very important technology. Therefore,an AC voltage,AC current and active power acquisition system based on embedded STM32 F103 machine is designed,and AC voltage and AC current values are detected by voltage transformer TV1005 M and current Transformer TA1005 M respectively;After the screen or mobile phone APP and WiFi modules are interconnected,AC voltage,AC current,power,and power values can be displayed in real time;By setting the threshold power,the current can be monitored and the circuit can be protected.
上传时间: 2022-03-27
上传用户:shjgzh
随着计算机技术和微电子的迅速发展,嵌入式系统已经被广泛应用到许多领域,如科学研究,工程计算,军事技术,以及各种商业应用等。联入式系统被定义为以应用为中心,以计算机技术为基础,软硬件可裁剪、适应于特定应用系统对功能、可靠性、成本、体积、功耗、等严格要求的专业计算机系统。在目前的各种嵌入式处理器中,由于ARM芯片的功耗低、成本低等显著优点,因而获得众多的半导体厂商的大力支持,在32位嵌入式应用领域获得了巨人的成功。另一方面,Linx操作系统具有开放源代码、功能强大,且易于移植等特点而成为嵌入式操作系统的首选,因此在ARM芯片上构建嵌入式Liux系统成为嵌入式领域的一个热点本文首先总结了ARM体系结构和特点,并选择了基于AMR920T内核的S3C2440开发板作为移植平台。然后介绍了搭建交叉编译环境的一般方法然后介绍了嵌入式 Limux系统的启动程序实现原理,并实现了ubo的移植,在对 Linux内核结构进行了分析后,给出了 Linux内核的详细移植的实现方法。然后详细介绍了如何构建根文件系统,最终把所裁剪的嵌入式系统能够成功的移植到SC2440开发板上。关键词嵌入式 Linux系统;AM启动程序;移植:;裁剪嵌入式系统(Embedded System),实际上是"嵌入式计算机系统"的简称,它是相对于通用计算机系统而言的。国际电气与电子工程师协会(IEE)对于嵌入式系统的定义:嵌入式系统是用来控制或监视机器、装置或工厂等大规模系统的设备。国内对嵌入式系统的一般定义:嵌入式系统是以应用为中心、以计算机技术为基础、软件硬件可剪裁、适应于特定应用系统对功能、可靠性、成本、体积、功耗严格要求的专用计算机系统嵌入式系统通常由硬件和软件两部分组成。硬件由微控制器或单片机实现,包括一些外围设备,软件由嵌入式操作系统和应用软件组成。和通用计算机系统不同,嵌入式系统是与应用紧密结合的,它具有很强的专用性,必须结合实际系需求进行合理的裁剪利用,满足应用系统的功能,可靠性,成本体积等要求目前,嵌入式技术广泛应用于智能家电,消费电子,多媒体,网络工程,卫星通信,军事工业等领域,具有无限优越的应用前景。
上传时间: 2022-03-30
上传用户:d1997wayne