SLAU887 February   2023 MSPM0G1105 , MSPM0G1106 , MSPM0G1107 , MSPM0G1505 , MSPM0G1506 , MSPM0G1507 , MSPM0G3105 , MSPM0G3105-Q1 , MSPM0G3106 , MSPM0G3106-Q1 , MSPM0G3107 , MSPM0G3107-Q1 , MSPM0G3505 , MSPM0G3505-Q1 , MSPM0G3506 , MSPM0G3506-Q1 , MSPM0G3507 , MSPM0G3507-Q1 , MSPM0L1105 , MSPM0L1106 , MSPM0L1227 , MSPM0L1228 , MSPM0L1228-Q1 , MSPM0L1303 , MSPM0L1304 , MSPM0L1304-Q1 , MSPM0L1305 , MSPM0L1305-Q1 , MSPM0L1306 , MSPM0L1306-Q1 , MSPM0L1343 , MSPM0L1344 , MSPM0L1345 , MSPM0L1346 , MSPM0L2227 , MSPM0L2228 , MSPM0L2228-Q1

 

  1.   Abstract
  2.   Trademarks
  3. 1Overview of BSL Features
  4. 2Terminology
  5. 3BSL Architecture
    1. 3.1 Design
      1. 3.1.1 Timeout Feature
        1. 3.1.1.1 Interface Autodetection
        2. 3.1.1.2 Command Reception
    2. 3.2 BSL Invocation
      1. 3.2.1 Blank Device
      2. 3.2.2 Application Request
      3. 3.2.3 GPIO Based Invocation
      4. 3.2.4 Debug Mailbox Command
      5. 3.2.5 Others
        1. 3.2.5.1 Pre-Boot Application Verification
    3. 3.3 Memory
      1. 3.3.1 SRAM Memory Usage
    4. 3.4 BSL Configuration
    5. 3.5 BSL Status
  6. 4Bootloader Protocol
    1. 4.1 Packet Format
    2. 4.2 UART and I2C BSL Protocol
      1. 4.2.1 BSL Acknowledgment
      2. 4.2.2 Peripheral Configuration
        1. 4.2.2.1 UART
        2. 4.2.2.2 I2C
        3. 4.2.2.3 CRC
    3. 4.3 Bootloader Core Commands
      1. 4.3.1  Connection
      2. 4.3.2  Get Device Info
      3. 4.3.3  Unlock Bootloader
      4. 4.3.4  Program Data
      5. 4.3.5  Program Data Fast
      6. 4.3.6  Readback Data
      7. 4.3.7  Flash Range Erase
      8. 4.3.8  Mass Erase
      9. 4.3.9  Factory Reset
      10. 4.3.10 Standalone Verification
      11. 4.3.11 Start Application
      12. 4.3.12 Change Baud Rate
    4. 4.4 BSL Core Response
      1. 4.4.1 BSL Core Message
      2. 4.4.2 Detailed Error
      3. 4.4.3 Memory Readback
      4. 4.4.4 Device Info
      5. 4.4.5 Standalone Verification
    5. 4.5 Bootloader Security
      1. 4.5.1 Password Protected Commands
        1. 4.5.1.1 Security Alert
      2. 4.5.2 BSL Entry
  7. 5Sample Program Flow with Bootloader
  8. 6Secondary Bootloader
    1. 6.1 Secondary Bootloader Example
  9. 7Interface Plug-in
    1. 7.1 Implementation
      1. 7.1.1 Init
      2. 7.1.2 Receive
      3. 7.1.3 Transmit
      4. 7.1.4 Deinit
      5. 7.1.5 Important Notes
    2. 7.2 Flash Plug-in Type
    3. 7.3 Overriding an Existing Interface
      1. 7.3.1 UART Interface Flash Plug-in Example
  10. 8References
  11. 9Revision History

3.2.2 Application Request

To invoke the bootloader from an application, set the RESETLEVEL as BOOTLOADERENTRY and trigger reset through the RESETCMD register. This sequence causes a system reset, and the bootcode is executed and the bootloader is invoked.

Because a system reset is issued, all the peripheral configurations are reset while exiting the application.