基于双CPU的CAN-RS485网桥设计

Design of CAN-RS485 Bidge Based on Two-ways CPU

针对目前多数文献介绍的通用串口与CAN总线接口网桥通信速率低(多数仅达到9.6kbps或更低);或者只是针对某专门系统设计,不具有通用性的特点。文章给出了一种在CAN bus与RS485总线之间实现透明转换的高速网桥设计方法,其通信速率可以覆盖单片机串口通信额定的20kbps;全透明转换,不依赖于任何系统。因而具有更高的通用性和推广价值。

The dispuisition raise a design method aim at the low corresponding speed between cunent senal port and CAN bus interface,or the characteristic that aim at special system design only without currency.The method realize transparent cornersion the ccrresponding speed can bestrow the rated speed lokbps of selial ccrresponding and don/t dopond on any system. And so it possess more cuwency and extend value.