I need to use an external loader via single SPI for a project. Despite performing all the necessary steps. I'm getting an error through CubeProgrammmer.
/* 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) + LENGTH(RAM); /* end of RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */
/* Specify the memory areas */
MEMORY
{
RAM (xrw) : ORIGIN = 0x20000004, LENGTH = 112K-4
}
/* Define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = . + 0x1FC;
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >RAM :Loader
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >RAM
.ARM : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >RAM :Loader
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >RAM :Loader
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >RAM :Loader
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(SORT(.fini_array.*)))
KEEP (*(.fini_array*))
PROVIDE_HIDDEN (__fini_array_end = .);
} >RAM :Loader
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* Initialized data sections goes into RAM, load LMA copy after code */
.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 :Loader
/* Uninitialized data section */
. = ALIGN(4);
.bss :
{
/* This is used by the startup in order to initialize the .bss secion */
_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 :Loader
/* The program code and other data goes into FLASH */
.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))
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >RAM :Loader
.Dev_info :
{
KEEP(*Dev_Inf.o ( .rodata* ))
} :SgInfo
/* Constant data goes into FLASH */
.rodata :
{
. = ALIGN(4);
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
} >RAM :Loader
/* User_heap_stack section, used to check that there is enough RAM left */
._user_heap_stack :
{
. = ALIGN(4);
PROVIDE ( end = . );
PROVIDE ( _end = . );
. = . + _Min_Heap_Size;
. = . + _Min_Stack_Size;
. = ALIGN(4);
} >RAM :Loader
.ARM.attributes 0 : { *(.ARM.attributes) }
}My linker code is above. I also generate .stldr file.
#include "Dev_Inf.h"
/* This structure containes information used by ST-LINK Utility to program and erase the device */
#if defined (__ICCARM__)
__root struct StorageInfo const StorageInfo = {
#else
struct StorageInfo __attribute__((section(".Dev_info"))) /*const*/ StorageInfo = {
#endif
"W25Q64JVZPIQ-STM32G491-EXT-FLASH", // Device Name + EVAL Borad name
SPI_FLASH, // Device Type
0x00000000, // Device Start Address
0x00800000, // Device Size in Bytes (8MBytes)
0x100, // Programming Page Size 256Bytes
0xFF, // Initial Content of Erased Memory
// Specify Size and Address of Sectors (view example below)
{
{0x00000800, 0x00001000}, // Sector Num : 2048 ,Sector Size: 4KBytes
{0x00000000, 0x00000000}
}
};
My dev_inf function is as shown above. I'm using W25Q64 as an external flash. The flash drive is working correctly without external loader. It has been tested before.
int Init(void)
{
SystemInit();
/* ADAPTATION TO THE DEVICE
*
* change VTOR setting for H7 device
* SCB->VTOR = 0x24000000 | 0x200;
*
* change VTOR setting for other devices
* SCB->VTOR = 0x20000000 | 0x200;
*
* */
SCB->VTOR = 0x20000000 | 0x200;
HAL_DeInit();
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_SPI3_Init();
__HAL_SPI_ENABLE(&hspi3);
__set_PRIMASK(0); //enable interrupts
__set_PRIMASK(1); //disable interrupts
return LOADER_OK;
}I'm trying to initialize an external loader using the Init() function above. I have also read, write, sector erase and other functions.
I can't read and write to start address. As you see at image, I have an error. Loader was selected by the way.
int Read (uint32_t Address, uint32_t Size, uint8_t* Buffer)
{
// sFLASH_ReadBuffer(Buffer, Address, Size);
return 1;
}In addition, I tried Read() function above. This function at above only return 1 so, There shouldn't be any errors. But I'm still getting errors.
I need to write an external loader for my processor. I've tried many things but haven't succeeded. I would appreciate your help.
