将两块CAN总线开发板CANH---CANH,CANL---CANL相连连接无误后分别按动中断按键。相应的数码管显示加一，并通过CAN总线发送到另一块数码管上显示。-Two CAN bus development board CANH--- CANH, CANL--- CANL connected connected to the correct respectively pressing the interrupt button. Corresponding digital display p