micropython/stmhal/boards/stm32f429.ld

/*
    GNU linker script for STM32F429i-Discovery kit with external 8MByte SDRam
*/

/* Specify the memory areas */
MEMORY
{                                                   
    FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 0x0200000 /* entire flash, 2048 KiB */
    FLASH_ISR (rx)  : ORIGIN = 0x08000000, LENGTH = 0x0004000 /* sector 0, 16 KiB */
    FLASH_TEXT (rx) : ORIGIN = 0x08020000, LENGTH = 0x0088000 /* sectors 5,6,7,8, 4*128KiB = 512 KiB (could increase it more) */
    RAM (xrw)       : ORIGIN = 0x20000000, LENGTH = 0x0030000 /* 192 KiB */
    SDRAM(xrw)      : ORIGIN = 0xC0000000, LENGTH = 0x0800000 /* 8 MByte */
}
 
/* produce a link error if there is not this amount of RAM for these sections */
_minimum_stack_size = 2K;
_minimum_heap_size = 16K;
 
/* Define tho top end of 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);

/* define common sections and symbols */
INCLUDE common.ld

/* 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 = 0x2001c000; /* tunable */