MEMORY
{
  /* NOTE K = KiBi = 1024 bytes */
  /* TODO Adjust these memory regions to match your device memory layout */
  FLASH : ORIGIN = 0x8000000, LENGTH = 128K
  RAM : ORIGIN = 0x20000000, LENGTH = 16K
}

/* This is where the call stack will be allocated. */
/* The stack is of the full descending type. */
/* You may want to use this variable to locate the call stack and static
   variables in different memory regions. Below is shown the default value */
/* _stack_start = ORIGIN(RAM) + LENGTH(RAM); */

/* You can use this symbol to customize the location of the .text section */
/* If omitted the .text section will be placed right after the .vector_table
   section */
/* This is required only on microcontrollers that store some configuration right
   after the vector table */
/* _stext = ORIGIN(FLASH) + 0x400; */


Increase stack to prevent stack overflow issue.
MEMORY
{
  /* NOTE K = KiBi = 1024 bytes */
  /* TODO Adjust these memory regions to match your device memory layout */
  FLASH : ORIGIN = 0x8000000, LENGTH = 128K
  RAM : ORIGIN = 0x20000000, LENGTH = 16K
}


  /* space reserved for the stack */
  _stack_size = 0x2000;

  /* `.` is right after the .bss and .data sections */
  _heap_start = .;
  _heap_end = ORIGIN(RAM) + LENGTH(RAM) - _stack_size;