rt-thread-official/bsp/frdm-k64f/MK64F.sct

LR_IROM1 0x00000000 0x100000  {    ; load region size_region (1000k)
  ER_IROM1 0x00000000 0x100000  {  ; load address = execution address
   *.o (RESET, +First)
   *(InRoot$$Sections)
   .ANY (+RO)
  }
  ; 8_byte_aligned(62 vect * 4 bytes) =  8_byte_aligned(0x194) = 0x198
  ; 0x40000 - 0x198 = 0x3FE68
  RW_IRAM2 0x20000000 0x30000 {
   .ANY (+RW +ZI)
  }
}