03 2014 档案
摘要：SAE J1850 VPW接口芯片电路SAE J1850 PWM 接口芯片电路SAE J2411 SWC 接口芯片电路ISO 11898 CAN 接口芯片电路CANH 和CANL 上的电容CANH 和CANL 输出到GND 的一对匹配电容CH 和CL 经常被用于提高抗电磁干扰的性能相应噪声源的阻抗RF 和CANH 和CANL 对地的电容组成了一个RC 低通滤波器在抗干扰的性能的问题上电容的值应该尽可能大才能获得低的角频率, 另一方面输出级的整个电容负载和阻抗为数据信号建立了一个低通滤波器因此相关的角频率要比数据传输频率高这使电容值必须由节点的数量和数据传输频率决定当TJA1050 的输出级阻抗
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摘要：Connects to the OBDII J1962 DLC and supports the following protocols. 1 CAN2 Single Wire2 J1850PWM+ , J1850VPW3 CAN2+6 CAN+ (CAN-C only), SCI A Engine
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摘要：1，JTAG和ISP引脚复用，JTAG的TCK,TDO,TDI分别与ISP的SCK,MISO,MOSI复用；2，VT引脚必须接目标板电源，不然仿真器接口电路不工作；JTAG接口引脚定义如下标配的JTAG转ISP的小板引脚定义如下标准10针ISP接口定义：标准10针JTAG接口定义(适合普通ATmega芯片)：(适合ATmega1280,2560等系列增强型芯片及Xmega芯片)
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摘要：AVR 单片机有加法和减法指令，可以直接调用相关指令来达到目的。这里列出了16位加法、16位带立即数加法、16位减法、16位带立即数减法、16位比较、16位带立即数比较程序和16位取补程序。add16: addr16,r18;r17:r16+r19:r18→r17:r16 adcr17,r19addi16: subir16,low(-addi2); r17:r16+addi2→r17:r16 sbcir17,high(-addi2);addi2为16位立即数sub16: subr16,r18; r17:r16-r19:r18→r17:r16 sbcr17,r19subi16: ...
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摘要：2nd order RC Low-pass FilterCenter frequency fc = 23405.13869[Hz]Q factor Q = 0.333333333333Sallen–Key topologyhttp://en.wikipedia.org/wiki/Sa...
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摘要：C:\Program Files\Atmel\Atmel Studio 6.1\atbackend\atprogram.exeNo command specified.Atmel Studio Command Line InterfaceCopyright (C) 2013 Atmel Corporation.Usage: atprogram [options] [arguments] [ [arguments] ...]Options: -t --tool Tool name: avrdragon, avrispmk2, avrone, jtagice3,jtag...
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摘要：SAE J1962—Diagnostic ConnectorSAE J1850—Class B Data Communications Network Interface SAE J1939—Truck and Bus Control and Communications Network (Multiple Parts Apply) SAE J2610—DaimlerChrysler Information Report for Serial Data Communication Interface (SCI) ISO 7637-1:1990—Road vehicles—Electrical
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摘要：J1962诊断座:J1962/16 ........ 常火线 +BATJ1962/ 8 ........ 点火开关打开信号 +IGNJ1962/ 5 ........发动机搭铁线; 逻辑地J1962/4 ........ 底盘搭铁线 ; 电源地J1962/14 ........ can信号 L线 (ISO11898兼容 500kbps)J1962/ 6 ........ can信号 H线 (ISO11898兼容 500kbps)J1962/ 7 ........k线 (KWP2000协议 10.4kbps)J1962/13 ........ RX 车辆端数据接收 ;尼桑协议 9.6kbps .
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摘要：全球统一的重型发动机的车载诊断系统（WWH-OBD）ISO/PAS 27145 is intended to become the single communication standard for access to OBD-related information.To allow for a smooth migration from the existing communication standards to this future world-wide standardized communication standard,the initial communication conc
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摘要：http://ecad.tu-sofia.bg/et/2005/pdf/Paper097-P_Dzhelekarski1.pdfINITIALIZATIONPrior to any diagnostic communication an initialization must be performed.This is the process of activating the OBD system for starting communication.The initialization can be started after an idle-time on the bus.Two type
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摘要：On-Board DiagnosticsJ1962 Diagnostic Connector Equivalent to ISO/DIS 15031-3: December 14, 2001J2012 Diagnostic Trouble Code Definitions J1939Recommended Practice for a Serial Control and Communications Vehicle NetworkJ1979 E/E Diagnostic Test Modes J1930 Electrical/Electronic Systems Diagnostic Ter
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摘要：http://www.digidescorp.com/wp-content/uploads/2012/02/J1850-Datasheet-pdf.pdf
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