This allows the hard ware for each peripheral processor to be identical, greatly increasing flexibility and expandability of the system. 这使得每个外围处理单元的硬件都可以相同,大大提高了系统的机动性和扩充能力。
After the serial peripheral interface ( SPI) was used to implement communication of Arm processor with CAN controller. CAN-Bus driver program and application program in Arm-Linux embedded system were designed, and the graphical user interface ( GUI) based on Arm-Linux was developed. Arm处理器以同步外设接口(SPI)方式与CAN控制器相通信,开发了Arm-Linux嵌入式系统下的CAN-Bus驱动及应用程序,且设计了嵌入式环境下图形界面系统(GUI)。