write a C program to write/read to/from the CANbus

Hardware: the "blue pill" with the STM32F103C8T6, the CANbus tranceiver MCP2561 and the ST-LINK2 programmer. Software: STM32Cube or Keil5.33 The CANbus have 7 Nodes with Identifier 0x00 to 0x06. First it should be written to the CANbus the string FF for every node. Every node will respond with 11 messages a 8 bytes that should be captured in 7 arrays. The target of the present project is to have these 7 arrays for further calculations. In an other project different voltages should be displayd on 7 OLED displays. In an other project one relais should be driven if some voltages fulfil some conditions. In an other project the communication with the inverter should be established.