CAN bus application in deep-sea drilling measurement and control system

In view of the deep-sea drilling measurement and control system of the current development needs, designed and implemented the deep-sea drilling measurement and control system based on CAN bus. The main board and the expand board all based on STM32, they use CAN bus to communicate. CAN bus has the advantages of good real-time performance, easy to develop, simple link and strong anti-jamming capability. Through isolation motherboard memory mapping can realize the hardware and software control. For PC programmers, they don't need to consider the expansion board's instruction to manipulate the measurement and control system of relays. So that we can make the main board and the expand board as a whole system.