Microengineering and Microelectromechanical systems (MEMS) have very few watertight definitions regarding their subjects and technologies. Microengineering can be described as the techniques, technologies, and practices involved in the realization of structures and devices with dimensions on the order of micrometers. MEMS often refer to mechanical devices with dimensions on the order of micrometers fabricated using techniques originating in the integrated circuit (IC) industry, with emphasis on silicon-based structures and integrated microelectronic circuitry. However, the term is now used to refer to a much wider range of microengineered devices and technologies.
标签： Microengineering Interfacing MEMS and
上传时间： 2020-06-06
上传用户：shancjb
1.bus indices out of range 总线分支索引超出范围2.Bus range syntax errors 总线范围的语法错误3.Illegal bus range values 非法的总线范围值4.Illegal bus definitions 定义的总线非法5.Mismatched bus label ordering 总线分支网络标号错误排序6.Mismatched bus/wire object on wire/bus 总线/导线错误的连接导线/总线
标签： Altium Designer
上传时间： 2022-04-17
上传用户：qdxqdxqdxqdx
1. 目的 规范产品的PCB焊盘设计工艺， 规定PCB焊盘设计工艺的相关参数，使得PCB 的设计满足可生产性、可测试性、安规、EMC、EMI 等的技术规范要求,在产品设计过程中构建产品的工艺、技术、质量、成本优势。 2. 适用范围本规范适用于空调类电子产品的PCB 工艺设计，运用于但不限于PCB 的设计、PCB 批产工艺审查、单板工艺审查等活动。本规范之前的相关标准、规范的内容如与本规范的规定相抵触的，以本规范为准3.引用/参考标准或资料TS-S0902010001 <〈信息技术设备PCB 安规设计规范〉>TS—SOE0199001 <〈电子设备的强迫风冷热设计规范〉〉TS—SOE0199002 〈<电子设备的自然冷却热设计规范>>IEC60194 〈<印制板设计、制造与组装术语与定义>> （Printed Circuit Board designmanufacture and assembly-terms and definitions)IPC—A-600F 〈<印制板的验收条件>〉 （Acceptably of printed board)IEC609504。规范内容4。1焊盘的定义 通孔焊盘的外层形状通常为圆形、方形或椭圆形。具体尺寸定义详述如下，名词定义如图所示。1) 孔径尺寸:若实物管脚为圆形：孔径尺寸(直径)=实际管脚直径+0。20∽0。30mm（8。0∽12。0MIL）左右；若实物管脚为方形或矩形：孔径尺寸（直径）=实际管脚对角线的尺寸+0.10∽0。20mm（4.0∽8。0MIL）左右。2) 焊盘尺寸： 常规焊盘尺寸=孔径尺寸（直径)+0.50mm（20.0 MIL)左右.…………
标签： PCB
上传时间： 2022-05-24
上传用户：canderile
This manual documents the Microcontroller profile of version 7 of the ARM® Architecture, the ARMv7-M architecture profile. For short definitions of all the ARMv7 profiles see About the ARMv7 architecture, and architecture profiles on page A1-20.ARMv7 is documented as a set of architecture profiles. The profiles are defined as follows: ARMv7-A The application profile for systems supporting the ARM and Thumb instruction sets, and requiring virtual address support in the memory management model. ARMv7-R The realtime profile for systems supporting the ARM and Thumb instruction sets, and requiring physical address only support in the memory management model ARMv7-M The microcontroller profile for systems supporting only the Thumb instruction set, and where overall size and deterministic operation for an implementation are more important than absolute performance. While profiles were formally introduced with the ARMv7 development, the A-profile and R-profile have implicitly existed in earlier versions, associated with the Virtual Memory System Architecture (VMSA) and Protected Memory System Architecture (PMSA) respectively.
标签： arm
上传时间： 2022-06-02
上传用户：ibeikeleilei
VIP专区-嵌入式/单片机编程源码精选合集系列（50）资源包含以下内容：1. 冷光源 产品的控制器 HT48R系列和HT48E系列.2. 冷光源 产品的控制器 HT48R系列和HT48E系列.3. 冷光源 产品的控制器 HT48R系列和HT48E系列.4. MT28F128J3 flash 编程 也适用intel flash 28F 系列 里面是pdf文档.5. 流水灯 使用定时器控制.6. moder 51汇编程序框架 D4为串口发送中断指示灯； D5为外部中断1指示灯； D6为外部中断0指示灯； D7为串口接收中断指示灯； D8为定时器指示灯；.7. 计数器0的实验程序 intT0 取时钟电路产生计数脉冲.8. SMDK2410boardTestProgram.9. tini的http-slientC程序.10. TINI的pop3的c代码.11. 用VC做的PC与单片机通信的程序,很实用的.望此代码给大家带来方便或有所启发.12. cypress usb 68013a examples.13. 本文件用于spi接口的键盘扫描模块.14. 跑马灯设计.15. 在smartarmm2200上显示波形实现暂停退出的功能.16. 解决smartarm2200串口下载问题的程序.17. smartarm2200d的ad转换程序.18. 自己画的经244隔离的JTAGFORAVR.19. 第一次上传.20. at91sam7s64 arm的A/D转换测试代码.21. 8279键盘显示芯片实验源程序（C语言编写）.22. 菲利普单片机LPC900系列的I2C读写程序.23. 当前SOC是嵌入式系统设计的一大热点.24. 自己收藏的单片机程序——洗衣机的工作原理。c语言编写。.25. 用C8051F300设计锂离子电池充电器的解决方案！给大家参考！.26. 触摸屏驱动源码.27. MSP430 串口通讯通过中断实现.28. 综合电子设计实验部分元件功能管脚详细说明电子原理图.29. sc2410测试程序.30. atmel at91sam7s header file extented, some extra register definitions are set and extra functions ar.31. IAR开发平台下.32. IAR下.33. atmel at91sam7s和7x下.34. LM16032DDC-0B-Manual-Rev0[1]液晶屏幕使用.35. ucos-ii的图形界面移植.36. 很好的一个菜单处理程序.37. 嵌入式系统开发 TOPPERS and JSP Kernel Release 1.3 TOPPERS = Toyohashi Open Platform for Embedded Real-Tim.38. 嵌入式系统开发用源代码 包含At91C arm芯片相关各种例程 包括整数性能测试,浮点测试,硬件驱动等.39. Welcome to PMOS. PMOS is a set of modules, mostly written in Modula-2, to support multitasking. PMO.40. 用于motorala 68K系列处理器的小实时多任务操作系统 The OMU Kernel was written to provide a cut-down Unix-like O/S for a.
上传时间： 2013-07-21
上传用户：eeworm
