SPRACM8A June   2019  – January 2021 OMAP-L132 , OMAP-L132 , OMAP-L138 , OMAP-L138 , TMS320C6742 , TMS320C6742 , TMS320C6746 , TMS320C6746 , TMS320C6748 , TMS320C6748

 

  1.   Trademarks
  2. 1OMAP-L138 Boot Process
    1. 1.1 During Reset
    2. 1.2 After Reset
  3. 2Boot Utilities
    1. 2.1 AISgen
    2. 2.2 Serial Boot and Flash Loading Utility
      1. 2.2.1 Compiling
        1. 2.2.1.1 Under Windows
        2. 2.2.1.2 Under Linux
      2. 2.2.2 Running
        1. 2.2.2.1 Under Windows
        2. 2.2.2.2 Under Linux
      3. 2.2.3 Serial Flasher Options
    3. 2.3 Modifications for Custom Boards
    4. 2.4 Rebuilding and Customization of Boot Utilities
      1. 2.4.1 Download the Flash and Boot Utilities
      2. 2.4.2 Install and Configure the Required Software
        1. 2.4.2.1 Cygwin
        2. 2.4.2.2 Microsoft .NET Framework
      3. 2.4.3 Compiler Tools
        1. 2.4.3.1 Compiler Tools (CODESOURCERY G++ LITE)
        2. 2.4.3.2 C6X Compiler Tools
        3. 2.4.3.3 Newer CCS
      4. 2.4.4 Rebuilding the Serial Flash and Boot Utils Package for a Particular Platform
      5. 2.4.5 Rebuilding the HexAIS Utility for OMAPL13x
  4. 3Boot Examples
    1. 3.1 Booting Binaries
      1. 3.1.1 Description
      2. 3.1.2 Obtaining the Software
      3. 3.1.3 Running
    2. 3.2 Booting DSP Binaries on AM1808/OMAPL138
      1. 3.2.1 Description
      2. 3.2.2 Obtaining the Software
      3. 3.2.3 Running
        1. 3.2.3.1 OMAP-L138 EVM
        2. 3.2.3.2 C6748 EVM
  5. 4Debugging Bootloader
  6. 5OMAP-L138 Boot Benchmarks
    1. 5.1 Host Boot Performance
    2. 5.2 Test Details
      1. 5.2.1 Methodology
      2. 5.2.2 43
      3. 5.2.3 Software
      4. 5.2.4 Hardware
      5. 5.2.5 Discussion
  7. 6OMAP-L138 Bootloader FAQ
  8. 7References
  9.   A Setting c_int00 Using SYS/BIOS
  10.   Revision History

5.2.2

The board begins in a powered state to remove variability of power-up times. For example, some MMC/SD cards can take up to 1 second after power is applied to be accessible.

Two images sizes were used:

  • The 1KB image size boot time basically represents the initialization time to read any data from the device.
  • The 124KB image size shows how long it takes to boot a larger image.

The following formula can be used to estimate boot times (time_x) for other image sizes (size_x):

time_x = time_1kb + size_x * (time_124kb - time_1kb) / 123