SPRADE5 February   2025 TDA4VM , TDA4VM-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Optimization Methology
    1. 2.1 Bootloader Switch to SBL From OSPI Boot Media
    2. 2.2 Linux Device Tree Optimizations
    3. 2.3 File System Switch to Tiny rootfs
    4. 2.4 Vision_apps Framework Optimizations
    5. 2.5 Imaging Framework Optimizations
    6. 2.6 Vision_apps SRV Application Redesign
  6. 3Detailed Design Procedure
    1. 3.1 Linux Integration (PSDKLA)
    2. 3.2 Imaging Integration(PSDKRA)
    3. 3.3 Vision_apps Integration (PSDKRA)
    4. 3.4 PDK Implementation (PSDKRA)
      1. 3.4.1 Build R5 SBL for OSPI Boot Mode
      2. 3.4.2 Build combined_appImage
      3. 3.4.3 Copy TIFS and phy Tuning Parameters
    5. 3.5 Flashing the Binaries to OSPI
    6. 3.6 Steps to Install vision_apps With tiny-rootfs on SD Card
    7. 3.7 Copy Test Data to SD card (one time only)
    8. 3.8 Init Script
    9. 3.9 Moving File System From SD to eMMC
  7. 4Logs
  8. 5Summary
  9. 6References

2.4 Vision_apps Framework Optimizations

As the SRV application is a vision_apps-based demo, there are few optimizations that are done to the vision_apps framework that provides faster execution of the demo.

The optimizations are as follows:

  • Removing C6x and C7x cores from build and from IPC.
  • Hardcoding parameters for choosing the camera.
  • Re-structure the MCU2_0 application to perform all the SRV and dependent tasks to be done before the others.
  • Remove dependency of SRV on C6x and C7x.
  • Split ISS sensor initialization so that camera sensor initialization is started independent of vison_apps IPC.