SWRU622A August   2024  – September 2024 AWRL1432 , AWRL6432 , IWRL1432 , IWRL6432 , IWRL6432AOP

 

  1.   1
  2.   Trademarks
  3. 1Introduction
  4. 2Basic Bootloader Flow
    1. 2.1 Programming Serial Data Flash Over UART (Bootloader Service)
    2. 2.2 Binary File Format
    3. 2.3 Flash Programming Sequence
    4. 2.4 Supported UART Commands/Response and Format
    5. 2.5 Flashing Sequence
    6. 2.6 ROM-Assisted Image Download Sequence
    7. 2.7 Booting Application Image
      1. 2.7.1 Booting From Serial Flash
      2. 2.7.2 Bootmode – SPI
      3. 2.7.3 Bootmode - UART
  5. 3Secondary Bootloader
    1. 3.1 SBL Execution Flow
      1. 3.1.1 Flash Memory Partitioning for SBL Execution
      2. 3.1.2 SBL Feature Modifications
      3. 3.1.3 SBL Development Considerations
  6. 4Warm Reset
    1. 4.1 Integrity Verification
    2. 4.2 LSTC/PBIST
    3. 4.3 Watchdog Timer
    4. 4.4 Reset-Triggered Flash Reload of Application
      1. 4.4.1 Hardware Solutions
        1. 4.4.1.1 PMIC I2C Messaging
        2. 4.4.1.2 External Watchdog Timer
        3. 4.4.1.3 External Voltage Monitoring or Voltage Supervisors
      2. 4.4.2 Software Solutions
        1. 4.4.2.1 Setting Boot Vector to 0x0
  7. 5Relevant Registers
    1. 5.1 Reset Registers
    2. 5.2 PC Registers
      1. 5.2.1 Addresses
  8. 6Revision History

4.2 LSTC/PBIST

Programmable built-in self test (PBIST) is a feature that is used for self-test the memory regions in the SoC without any external test equipment. In an embedded system, these tests are typically used during boot time or shutdown of the system to check the health of an SoC.

Logic built-in self test controller (LSTC) IP addresses the logic self-test requirements for functional safety applications as per ISO-26262 ASIL compliance. The LBIST is triggered through the RBL during power-up and/or during a warm reset if enabled, and if a functional safety rated device is being used.

For more details, see the Safety Modules section of the AWRL6432, IWRL6432, AWRL1432, IWRL1432 Technical Reference Manual.