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...
The SAE J1850 bus bus is used for diagnostics and data sharing applications in vehicles. The J1850 bus takes two forms: 41.6Kbps Pulse Width Modulated (PWM) two wire differential approach (Ford vehicles) 10.4Kbps Variable Pulse Width (VPW) single wire approach (GM vehicles) The single wire ap...
汽车电脑通讯协议:BDLC saej1850.pdf,Order this document by AN1731/D Motorola Semiconductor Application Note AN1731 VPW J1850 Multiplexing and Motorola’s Byte Data Link Controller (BDLC) Module By Kim Sparks Systems Engineering Austin, Texas Introduction
Before I delve into the nitty-gritty of how the PIC handles each of the tasks above, a word should be said about the J1850 VPW protocol. J1850 VPW is an “asynchronous, master-less, peer-to-peer protocol that supports equal network access for every node(1).” The J1850 bus supports CS...