External Loader Failing on STM32h7b3i-disco Board

[Richard Lowe]

Application is generated using the CubeMX with TouchGFX generator. Works wonderfully... that is until I want to locate my assets in OSPI.

Added this to the STM32H7B3LIHZQ_FLASH.ld file

/* Memories definition */
MEMORY
{
  DTCMRAM    (xrw)    : ORIGIN = 0x20000000,   LENGTH = 128K
  ITCMRAM    (xrw)    : ORIGIN = 0x00000000,   LENGTH = 64K
  RAM        (xrw)    : ORIGIN = 0x24000000,   LENGTH = 1024K
  FLASH      (rx)     : ORIGIN = 0x08000000,   LENGTH = 2048K
  OSPI	     (xrw)    : ORIGIN = 0x90000000,   LENGTH = 64M /* added by Richard */
}

Add

/* OSPI Additions by Richard */  
  FontFlashSection :
  {
    *(FontFlashSection FontFlashSection.*)
    *(.gnu.linkonce.r.*)
    . = ALIGN(0x4);
  } >OSPI
 
 
  TextFlashSection :
  {
    *(TextFlashSection TextFlashSection.*)
    *(.gnu.linkonce.r.*)
    . = ALIGN(0x4);
  } >OSPI
  
  ExtFlashSection :
  {
    *(ExtFlashSection ExtFlashSection.*)
    *(.gnu.linkonce.r.*)
    . = ALIGN(0x4);
  } >OSPI

Selected correct external loader file.

And get a nice long timeout with this result:

 

I've tried just about everything I can think of for the past 3 days. I'm missing some concept on how the external loader works or ... something.