Introduction - If you have any usage issues, please Google them yourself
Based on the STM32 CAN Communication: Dual CAN testing laboratories (interrupt mode), using two experimental board acts as the initiative to send a second CAN communication process and the passive acceptance of nodes. Active device first sends a signal " ABCD" , if the passive device receives this signal will be sent out to " DCBA" . If the master device successfully receives a reply signal " DCBA" , through USART1 print information to the terminal. In this experiment, the active devices running after passive devices.