The structure and mechanism of VxBus driver on the RTOS VxWorks are introduced, then the development of device driver for the multiport serial card in the mode of VxBus driver is analyzed, and multi-port serial sharing the same IRQ mode is realized.%介绍了嵌入式操作系统VxWorks 6最新设备驱动模式VxBus的原理,分析了在该驱动模式下多串口扩展卡的驱动程序开发过程,设计并实现了基于共享中断的驱动程序.
展开▼
