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Configure CAN filter to accept all messages

S G

Hi All,

Really need help on this one, any suggestions welcome!....

I'm using the CAN bus example program for MCBSTM32C eval board. It has an STM32F107 chip and I am have issues with the CAN Filter....

Does anyone know how to configure the CAN Filter to accept ALL incoming messages?

Thanks

Shane

Parents
  • 0 in reply to John Linq 

    typedef struct
{
  uint16_t CAN_FilterIdHigh;         /*!< Specifies the filter identification number (MSBs for a 32-bit
                                              configuration, first one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

  uint16_t CAN_FilterIdLow;          /*!< Specifies the filter identification number (LSBs for a 32-bit
                                              configuration, second one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

  uint16_t CAN_FilterMaskIdHigh;     /*!< Specifies the filter mask number or identification number,
                                              according to the mode (MSBs for a 32-bit configuration,
                                              first one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

  uint16_t CAN_FilterMaskIdLow;      /*!< Specifies the filter mask number or identification number,
                                              according to the mode (LSBs for a 32-bit configuration,
                                              second one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

  uint16_t CAN_FilterFIFOAssignment; /*!< Specifies the FIFO (0 or 1) which will be assigned to the filter.
                                              This parameter can be a value of @ref CAN_filter_FIFO */

  uint8_t CAN_FilterNumber;          /*!< Specifies the filter which will be initialized. It ranges from 0 to 13. */

  uint8_t CAN_FilterMode;            /*!< Specifies the filter mode to be initialized.
                                              This parameter can be a value of @ref CAN_filter_mode */

  uint8_t CAN_FilterScale;           /*!< Specifies the filter scale.
                                              This parameter can be a value of @ref CAN_filter_scale */

  FunctionalState CAN_FilterActivation; /*!< Enable or disable the filter.
                                              This parameter can be set either to ENABLE or DISABLE. */
} CAN_FilterInitTypeDef;

Reply
  • 0 in reply to John Linq 

    typedef struct
{
  uint16_t CAN_FilterIdHigh;         /*!< Specifies the filter identification number (MSBs for a 32-bit
                                              configuration, first one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

  uint16_t CAN_FilterIdLow;          /*!< Specifies the filter identification number (LSBs for a 32-bit
                                              configuration, second one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

  uint16_t CAN_FilterMaskIdHigh;     /*!< Specifies the filter mask number or identification number,
                                              according to the mode (MSBs for a 32-bit configuration,
                                              first one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

  uint16_t CAN_FilterMaskIdLow;      /*!< Specifies the filter mask number or identification number,
                                              according to the mode (LSBs for a 32-bit configuration,
                                              second one for a 16-bit configuration).
                                              This parameter can be a value between 0x0000 and 0xFFFF */

  uint16_t CAN_FilterFIFOAssignment; /*!< Specifies the FIFO (0 or 1) which will be assigned to the filter.
                                              This parameter can be a value of @ref CAN_filter_FIFO */

  uint8_t CAN_FilterNumber;          /*!< Specifies the filter which will be initialized. It ranges from 0 to 13. */

  uint8_t CAN_FilterMode;            /*!< Specifies the filter mode to be initialized.
                                              This parameter can be a value of @ref CAN_filter_mode */

  uint8_t CAN_FilterScale;           /*!< Specifies the filter scale.
                                              This parameter can be a value of @ref CAN_filter_scale */

  FunctionalState CAN_FilterActivation; /*!< Enable or disable the filter.
                                              This parameter can be set either to ENABLE or DISABLE. */
} CAN_FilterInitTypeDef;

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