通过外部其他CAN设备给QQ2812发送数据，了解CAN总线的设置和通讯过程，请尤其注意ID的设置。将MBOX0设置为发送模式，MBOX16设置为接收模式-Other CAN devices external to the QQ2812 send data to understand the CAN bus communication settings and the process ID, please pay particular attention to the settings. Mod