circuitpython/ports/stm32/boards/PYBD_SF2/f722_qspi.ld

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/*
Linker script for PYBD with STM32F722/STM32F723/STM32F732/STM32F733
Memory layout for mboot configuration (this here describes the app part):
FLASH_APP .isr_vector
FLASH_APP .text
FLASH_APP .data
FLASH_EXT .big_const
RAM .data
RAM .bss
RAM .heap
RAM .stack
*/
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 512K
FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 32K /* sectors 0,1 */
FLASH_APP (rx) : ORIGIN = 0x08008000, LENGTH = 480K /* sectors 2-7 */
FLASH_EXT (rx) : ORIGIN = 0x90000000, LENGTH = 2048K /* external QSPI */
RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 256K /* DTCM+SRAM1+SRAM2 */
}
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
/* Define the stack. The stack is full descending so begins just above last byte
of RAM. Note that EABI requires the stack to be 8-byte aligned for a call. */
_estack = ORIGIN(RAM) + LENGTH(RAM) - _estack_reserve;
_sstack = _estack - 16K;
/* RAM extents for the garbage collector */
_ram_start = ORIGIN(RAM);
_ram_end = ORIGIN(RAM) + LENGTH(RAM);
_heap_start = _ebss; /* heap starts just after statically allocated memory */
_heap_end = _sstack;
ENTRY(Reset_Handler)
/* Define output sections */
SECTIONS
{
.text_ext :
{
. = ALIGN(4);
*lib/mbedtls/*(.text* .rodata*)
. = ALIGN(512);
*(.big_const*)
. = ALIGN(4);
} >FLASH_EXT
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector))
. = ALIGN(4);
} >FLASH_APP
.text :
{
. = ALIGN(4);
*(.text*)
*(.rodata*)
. = ALIGN(4);
_etext = .;
} >FLASH_APP
_sidata = LOADADDR(.data);
.data :
{
. = ALIGN(4);
_sdata = .;
*(.data*)
. = ALIGN(4);
_edata = .;
} >RAM AT> FLASH_APP
.bss :
{
. = ALIGN(4);
_sbss = .;
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
} >RAM
.heap :
{
. = ALIGN(4);
. = . + _minimum_heap_size;
. = ALIGN(4);
} >RAM
.stack :
{
. = ALIGN(4);
. = . + _minimum_stack_size;
. = ALIGN(4);
} >RAM
}