SLAU550AB January   2014  – September 2022 MSP430FR2032 , MSP430FR2033 , MSP430FR2110 , MSP430FR2111 , MSP430FR2153 , MSP430FR2155 , MSP430FR2310 , MSP430FR2311 , MSP430FR2353 , MSP430FR2355 , MSP430FR2433 , MSP430FR2532 , MSP430FR2533 , MSP430FR2632 , MSP430FR2633 , MSP430FR4131 , MSP430FR4132 , MSP430FR4133 , MSP430FR5041 , MSP430FR5043 , MSP430FR50431 , MSP430FR5847 , MSP430FR58471 , MSP430FR5848 , MSP430FR5849 , MSP430FR5857 , MSP430FR5858 , MSP430FR5859 , MSP430FR5867 , MSP430FR58671 , MSP430FR5868 , MSP430FR5869 , MSP430FR5887 , MSP430FR5888 , MSP430FR5889 , MSP430FR58891 , MSP430FR5947 , MSP430FR59471 , MSP430FR5948 , MSP430FR5949 , MSP430FR5957 , MSP430FR5958 , MSP430FR5959 , MSP430FR5967 , MSP430FR5968 , MSP430FR5969 , MSP430FR5969-SP , MSP430FR59691 , MSP430FR5986 , MSP430FR5987 , MSP430FR5988 , MSP430FR5989 , MSP430FR5989-EP , MSP430FR59891 , MSP430FR6041 , MSP430FR6043 , MSP430FR60431 , MSP430FR6877 , MSP430FR6879 , MSP430FR68791 , MSP430FR6887 , MSP430FR6888 , MSP430FR6889 , MSP430FR68891 , MSP430FR6927 , MSP430FR69271 , MSP430FR6928 , MSP430FR6972 , MSP430FR6977 , MSP430FR6979 , MSP430FR69791 , MSP430FR6987 , MSP430FR6988 , MSP430FR6989 , MSP430FR69891

 

  1.   Abstract
  2.   Trademarks
  3. 1Introduction
    1. 1.1 BSL Limitations
    2. 1.2 Other Useful Documentation
  4. 2Overview of BSL Features
  5. 3BSL Architecture
    1. 3.1 Communication Interface
      1. 3.1.1 UART BSL
      2. 3.1.2 I2C BSL
    2. 3.2 BSL Memory
      1. 3.2.1 BSL Memory Layout
      2. 3.2.2 BSL Z-Area
      3. 3.2.3 BSL Memory Consideration
    3. 3.3 BSL Invocation
      1. 3.3.1 Software BSL Invocation
        1. 3.3.1.1 Starting the BSL From an External Software Application
        2. 3.3.1.2 BSL Action
          1. 3.3.1.2.1 BSL Action Function 2
      2. 3.3.2 Hardware BSL Invocation
        1. 3.3.2.1 Factors That Prevent Hardware BSL Invocation
      3. 3.3.3 Blank Device Detection
    4. 3.4 BSL Time-out Feature
    5. 3.5 BSL Version Number
    6. 3.6 BSL (User) Configuration
      1. 3.6.1 Configuring the BSL
        1. 3.6.1.1 Example of BSL User Configuration
        2. 3.6.1.2 Implement BSL Configuration in Application Code
  6. 4BSL Protocol
    1. 4.1 BSL Data Packet
      1. 4.1.1 UART Peripheral Interface Wrapper
      2. 4.1.2 I2C Peripheral Interface Wrapper
      3. 4.1.3 BSL Acknowledgment
      4. 4.1.4 BSL Core Response and BSL Core Message
      5. 4.1.5 BSL Core Commands
        1. 4.1.5.1 RX Data Block
        2. 4.1.5.2 RX Password
        3. 4.1.5.3 Mass Erase
        4. 4.1.5.4 CRC Check
        5. 4.1.5.5 Load PC
        6. 4.1.5.6 TX Data Block
        7. 4.1.5.7 TX BSL Version
        8. 4.1.5.8 RX Data Block Fast
        9. 4.1.5.9 Change Baud Rate
    2. 4.2 BSL Security
      1. 4.2.1 Protected Commands
      2. 4.2.2 RAM Erase
      3. 4.2.3 BSL Entry
  7. 5Common BSL Use Cases
    1. 5.1 Overview and Flow Chart
    2. 5.2 Establish a Connection
    3. 5.3 Erase the Device
    4. 5.4 Download the Application
    5. 5.5 Verify the Application
    6. 5.6 Run the Application
  8. 6Customize the BSL
  9. 7Bootloader Versions
    1. 7.1 FR2xx BSL Versions
    2. 7.2 FR4xx BSL Versions
    3. 7.3 FR57xx BSL Versions
    4. 7.4 FR58xx and FR59xx BSL Versions
    5. 7.5 FR6xx BSL Versions
  10. 8Revision History

5.3 Erase the Device

The next step in programming an application is to erase the device. This is possible either by using the Mass Erase command or by sending a wrong password with the RX Password command. The advantage of sending a wrong password instead of using a mass erase is the same programming flow can be used for an empty or programmed device. The host sends the password for an empty device, all 0xFF and checks the result. For an empty device, the password will be successful. For a programmed device, the password will fail, and the device will mass erase itself. The host can repeat this process and send the same password, which will now be successful for the erased device. This is especially useful for production programming from a host processor where the process flow is the same for the factory and the field.

For more information about the RX Password command, see Section 4.1.5.2. For more information about the Mass Erase command, see Section 4.1.5.3.