SLAAET4 April   2025 MSPM0G3506 , MSPM0G3507 , MSPM0G3518 , MSPM0G3519

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
    1. 1.1 MCAN Features
  5. 2Sysconfig Configuration for MCAN Module
    1. 2.1 MCAN Clock Frequency
    2. 2.2 MCAN Basic Configuration
      1. 2.2.1 Transmitter Delay Compensation (TDC)
      2. 2.2.2 Bit Timing Parameters
      3. 2.2.3 Message RAM Configuration
        1. 2.2.3.1 Standard and Extended ID Filter Configuration
          1. 2.2.3.1.1 How to Add More Filters
        2. 2.2.3.2 TX MSG RAM
        3. 2.2.3.3 RX MSG RAM
    3. 2.3 Advanced Configuration
    4. 2.4 Retention Configuration
    5. 2.5 Interrupts
    6. 2.6 Pin Configuration and PinMux
  6. 3Demo Project Descriptions
    1. 3.1 TX Buffer Mode
    2. 3.2 TX FIFO Mode
    3. 3.3 RX Buffer Mode
    4. 3.4 RX FIFO Mode
  7. 4Debug and Design Tips to Resolve/Avoid CAN Communication Issues
    1. 4.1 Minimum Number of Nodes Required
    2. 4.2 Why a Transceiver is Needed
    3. 4.3 Bus Off Status
    4. 4.4 Using MCAN in Low Power Mode
    5. 4.5 Debug Checklist
      1. 4.5.1 Programming Issues
      2. 4.5.2 Physical Layer Issues
      3. 4.5.3 Hardware Debug Tips
  8. 5Summary
  9. 6References

1.1 MCAN Features

Salient features of the MCAN module are as follows:

  • Conforms with CAN Protocol 2.0 A, B and ISO 11898-1:2015
  • Full CAN FD support (up to 64 data bytes)
  • AUTOSAR and SAE J1939 support
  • Up to 32 dedicated transmit buffers
  • Configurable transmit FIFO up to 32 elements
  • Configurable transmit queue up to 32 elements
  • Configurable transmit Event FIFO up to 32 elements
  • Up to 14 dedicated receive buffers
  • Two configurable receive FIFOs up to 14 elements each with 1kB message RAM
  • Up to 128 filter elements
  • Loop-back mode for self-test
  • Maskable interrupt (two configurable interrupt lines, correctable ECC, counter overflow, and clock stop or wakeup)
  • Non-maskable interrupt (uncorrectable ECC)
  • Two clock domains (CAN clock and host clock)
  • ECC check for Message RAM
  • Clock stop and wakeup support
  • Timestamp counter
  • 1Mbps nominal bit rate; 8Mbps data bit rate

Non-supported features:

  • Host bus firewall
  • Clock calibration
  • Debug over CAN