SPRADS5 December   2025 AM625 , AM62A7 , AM62D-Q1 , AM62P , AM6442

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Terminology
  6. 3Understanding Boot Mode and Flash Compatibility
  7. 4Flash Integration and SysConfig Setup
    1. 4.1 FLASH Parameters
      1. 4.1.1 Recommended Approach
    2. 4.2 OSPI Parameters
  8. 5Common Bring-up Issues and Debugging
    1. 5.1 Boot Failure
    2. 5.2 Known Errata
    3. 5.3 Flash Initialization Failure
      1. 5.3.1 FLASH and OSPI SysConfig Values
      2. 5.3.2 Flash Device and Manufacture ID Read Failure
      3. 5.3.3 PHY Failure
    4. 5.4 Flash Read Failure
    5. 5.5 Flash Program Failure
  9. 6Checklist for Requesting OSPI and FLASH Support
  10. 7Summary
  11. 8References

5.5 Flash Program Failure

Flash Erase and Write failures happen due to the following reasons:

  1. The sector or block to which write operation is issued is not erased prior to the write operation.
  2. Write/Erase command set in the SysConfig is incorrect for the configured protocol. Some flashes have different commands for 3-byte and 4-byte addressing.
  3. Flash Program and Flash Busy Timeout defined is too low.
  4. As mentioned in Figure 5-2 , the default selected address range 0x60000000, must be marked as Strongly Ordered, and not Cached. Marking the region as Cached leads to write failures.