SLAAEN5 February   2025 MSPM0G1106 , MSPM0G1107 , MSPM0G1506 , MSPM0G1507 , MSPM0G1518 , MSPM0G1519 , MSPM0G3106 , MSPM0G3106-Q1 , MSPM0G3107 , MSPM0G3107-Q1 , MSPM0G3506 , MSPM0G3506-Q1 , MSPM0G3507 , MSPM0G3507-Q1 , MSPM0G3518 , MSPM0G3518-Q1 , MSPM0G3519 , MSPM0G3519-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Bridge between CAN and SPI
  5. 2Implementation
    1. 2.1 Principle
    2. 2.2 Structure
  6. 3Software Description
    1. 3.1 Software Functionality
    2. 3.2 Configurable Parameters
    3. 3.3 Structure of Custom Element
    4. 3.4 Structure of FIFO
    5. 3.5 SPI Receive and Transmit (Transparent Transmission)
    6. 3.6 SPI Receive and Transmit (Protocol Transmission)
    7. 3.7 CAN Receive and Transmit
    8. 3.8 Application Integration
  7. 4Hardware
  8. 5Application Aspects
    1. 5.1 Flexible structure
    2. 5.2 Optional Configuration for SPI
    3. 5.3 Optional Configuration for CAN
    4. 5.4 CAN Bus Multinode Communication Example
  9. 6Summary
  10. 7References

5.3 Optional Configuration for CAN

The CAN module of MSPM0 conforms with CAN Protocol 2.0 A, B, and ISO 11898-1:2015. Users can configure various functions of the CAN module. By using SysConfig, users can change the basic configuration of CAN. (For example, the data transmission rate).

The code is provided with an optional configuration for the CAN ID. The sample code defaults to 11-bit ID (standard ID). The configuration can be changed by modifying user_define.h.

  • Add '#define CAN_ID_EXTEND ' to enable 29-bit ID (Extended ID).
In addition, this sample code supports carrying 64 bytes of data in a single frame. Users can configure the appropriate data size according to application requirements, which can further reduce the RAM space that is occupied by the FIFO.