Hello,
Our project is based on the STM32WBA65MI, and we have an external flash chip on the board that we use STM32CubeProgrammer w/a custom external loader to program. This worked well with STM32CubeProgrammer v2.20, but when I updated to STM32CubeProgrammer v2.21, suddenly I was unable to connect to the board using the external loader.
This happens as soon as I select the external loader and
If I select verbosity level 3, this is what I see:
08:50:10:520 : Selected loader: C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin/ExternalLoader/MX25R6435_STM32WBA65-LEGATO.stldr
08:50:10:520 : Error: Flash loader C:\Program Files\STMicroelectronics\STM32Cube\STM32CubeProgrammer\bin/ExternalLoader/MX25R6435_STM32WBA65-LEGATO.stldr cannot be loaded.Here's the StorageInfo:
struct StorageInfo __attribute__((section(".Dev_Info"))) const StorageInfo = {
"MX25R6435F_Legato", // Device Name + version number
SPI_FLASH, // Device Type
0x00000000, // Device Start Address
0x800000, // Device Size in Bytes
0x1000, // Programming Page Size
0xFF, // Initial Content of Erased Memory
// Specify Size and Address of Sectors (view example below)
{
{ 0x800, // Sector Numbers,
0x1000 }, // Sector Size
{ 0x00000000, 0x00000000 }
}
};I'm running Windows 11 Pro 25H2 if that makes a difference. The flash part we're writing to is the MX25R6435F.
My linker script is as follows:
/* Entry Point */
ENTRY(Init)
/* Generate 2 segment for Loader code and device info */
PHDRS {Loader PT_LOAD ; SgInfo PT_LOAD ; }
/* Highest address of the user mode stack */
_estack = ORIGIN(RAM_D1) + LENGTH(RAM_D1); /* end of "RAM" Ram type memory */
_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */
/* Memories definition */
MEMORY
{
RAM_D1 (xrw) : ORIGIN = 0x20000004, LENGTH = 512K-4
}
/* Sections */
SECTIONS
{
.isr_vector :
{
. = . + 0x1FC; /* ISR vector offset */
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >RAM_D1 :Loader
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >RAM_D1
.ARM : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >RAM_D1 :Loader
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >RAM_D1 :Loader
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >RAM_D1 :Loader
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(SORT(.fini_array.*)))
KEEP (*(.fini_array*))
PROVIDE_HIDDEN (__fini_array_end = .);
} >RAM_D1 :Loader
/* Used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* Initialized data sections into "RAM" Ram type memory */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start */
*(.data) /* .data sections */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end */
} >RAM_D1 :Loader
/* Uninitialized data section */
. = ALIGN(4);
.bss :
{
/* This is used by the startup in order to initialize the .bss section */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
} >RAM_D1 :Loader
/* The program code and other data into RAM type memory */
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)
KEEP (*(.init))
KEEP (*(.fini))
KEEP (*Loader_Src.o ( .text* ))
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >RAM_D1 : Loader
.Dev_Info :
{
__Dev_Info_START = .;
*(.Dev_Info*)
KEEP(*(.Dev_Info))
__Dev_Info_END = .;
} >RAM_D1 :SgInfo
/* Constant data into "FLASH" Rom type memory */
.rodata :
{
. = ALIGN(4);
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
} >RAM_D1 :Loader
/* User_heap_stack section, used to check that there is enough "RAM" Ram type memory left */
._user_heap_stack :
{
. = ALIGN(8);
PROVIDE ( end = . );
PROVIDE ( _end = . );
. = . + _Min_Heap_Size;
. = . + _Min_Stack_Size;
. = ALIGN(8);
} >RAM_D1 :Loader
/* Remove information from the compiler libraries */
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}
.ARM.attributes 0 : { *(.ARM.attributes) }
}For what it's worth, I also set up the Init() function to simply return 0, but CubeProgrammer still threw the same error.
Thank you,
Jonathan
