viteo / stm32-bluepill-canopennode

CANOpenNode on STM32 BluePill with SPL

CANOpenNode on STM32F103 (BluePill)

CANopen stack running on STM32F103 microcontroller.

It is based on CANopenNode, which is free and open source CANopen Stack and is included as a git submodule.

CANopen is the internationally standardized (EN 50325-4) (CiA301) CAN-based higher-layer protocol for embedded control system. For more information on CANopen see http://www.can-cia.org/.

Using on STM32 BluePill

Install STM32CubeIDE

STM32 programmer is required.

File -> Open Projects from File System... -> Directory

Program is tested on STM32 BluePill board with STM32F103c8 chip. CAN transceiver chip must be connected to the board.

By default device uses Object Dictionary based on CANopenNode/example, which contains only communication parameters.

STM32 BluePill

• Add CAN transciever (MCP2551, SN65HVD23x or similar) to the board. See example schema below.

        +-------------+                +----------------+
      5-| NC      RXD |-4-----------32-| PA11           |
      6-| CAN_L   VCC |-3-------+-3.3V-| 3.3V out       |
      7-| CAN_H   GND |-2--+    |      |                |
      8-| NC      TXD |-1--|----|---33-| PA12           |
        +-------------+    |    |      |                |
         VP232             |  100nF    |                |
                           |    |      |                |
                           +----+--GND-| GND            |
                                       +----------------+
                                        BluePill
  

• EEprom chip is not used.

• Default CAN bitrate is 500kbps and CANopen NodeId is 0x0A. See main_blank.c file.

• CANOpenNode driver implementation is in ./device/co_driver folder