SLAA721E October   2016  – March 2020 MSP430FR5969 , MSP430FR5969-SP , MSP430FR5994 , MSP430FR6989

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Glossary
    2. 1.2 Conventions
  3. 2Implementation
    1. 2.1 Main
    2. 2.2 Application Manager
      1. 2.2.1 Bootloader and Application Detection
        1. 2.2.1.1 Forcing Bootloader Mode
        2. 2.2.1.2 Application Validation
        3. 2.2.1.3 Jumping to Application
      2. 2.2.2 Memory Assignment
      3. 2.2.3 Interrupt Vectors in FRAM Devices
    3. 2.3 Memory Interface (MI)
      1. 2.3.1 Dual Image Support
    4. 2.4 Communication Interface (CI)
      1. 2.4.1 Physical-DataLink (PHY-DL)
        1. 2.4.1.1 UART
        2. 2.4.1.2 SPI
        3. 2.4.1.3 CC110x
        4. 2.4.1.4 Comm Sharing
      2. 2.4.2 NWK-APP
        1. 2.4.2.1 BSL-Based Protocol
          1. 2.4.2.1.1 Security
          2. 2.4.2.1.2 BSL-Based Protocol Using CC110x
          3. 2.4.2.1.3 Examples Using UART or CC110x
  4. 3Customization of MSP430FRBoot
    1. 3.1 Predefined Customizations
  5. 4Building MSPBoot
    1. 4.1 LaunchPad™ Development Kit Hardware
    2. 4.2 CC110x Hardware
    3. 4.3 Software
      1. 4.3.1 Building the Target Software
      2. 4.3.2 Convert Application Output Images
      3. 4.3.3 Generating Linker Files
  6. 5Demo Using FRAM LaunchPad Development Kit as Host
    1. 5.1 Hardware
    2. 5.2 Building the Host Project
    3. 5.3 Running the Demo
  7. 6Porting the target side example projects to other MSP430FR devices
  8. 7References
  9. 8Revision History

2.4.1 Physical-DataLink (PHY-DL)

The PHY-DL layer provides a hardware abstraction layer (HAL) to simplify the migration process to a different MSP430 derivative or peripheral. The PHY-DL layer provides a stable channel for sending data to and receiving raw data from the host. The current bootloader was implemented using UART or SPI and it supports the eUSCI, but other options could be included if desired. The PHY-DL layer is initialized by providing a pointer to a structure with the callback functions in Table 2-1.

Table 2-1 PHY-DL Callback Structure
t_CI_Callback Structure type definition
   .RxCallback Called when a new byte is received
   .TxCallback Called when a byte needs to be transmitted
   .ErrorCallback(1) Called when an error is detected in PHY-DL (for example, a time-out)
(1) Callback is optional. The protocol or CI may not require a callback.

A higher level layer (NWK-APP) uses the callback functions to implement the communication protocol. Depending on the protocol, some callbacks are not required and can be disabled in the PHY-DL layer to reduce the footprint. NWK-APP layer is described in Section 2.4.2.
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