---

cat .config | grep NOCACHE
CONFIG_NOCACHE_MEMORY=y
CONFIG_ARCH_HAS_NOCACHE_MEMORY_SUPPORT=y

objdump -h zephyr.elf 

Разделы:
Idx Name          Разм      VMA       LMA       Фа  смещ.  Выр.
  0 rom_start     000022c0  70000000  70000000  00000118  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  1 text          0000aad8  700022c0  700022c0  000023d8  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  2 .ARM.exidx    00000008  7000cd98  7000cd98  0000ceb0  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  3 initlevel     000000d0  7000cda0  7000cda0  0000ceb8  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  4 device_area   00000220  7000ce70  7000ce70  0000cf88  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  5 sw_isr_table  00000500  7000d090  7000d090  0000d1a8  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  6 dma_driver_api_area 00000028  7000d590  7000d590  0000d6a8  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  7 gpio_driver_api_area 00000024  7000d5b8  7000d5b8  0000d6d0  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  8 i2c_driver_api_area 00000018  7000d5dc  7000d5dc  0000d6f4  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  9 i2s_driver_api_area 00000014  7000d5f4  7000d5f4  0000d70c  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 10 clock_control_driver_api_area 0000001c  7000d608  7000d608  0000d720  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 11 uart_driver_api_area 00000014  7000d624  7000d624  0000d73c  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 12 log_const_area 00000068  7000d638  7000d638  0000d750  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 13 log_backend_area 00000010  7000d6a0  7000d6a0  0000d7b8  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 14 tbss          00000004  7000d6b0  7000d6b0  0000d7c8  2**2
                  ALLOC, THREAD_LOCAL
 15 rodata        00003264  7000d6b0  7000d6b0  0000d7c8  2**3
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 16 nocache       00002000  80000000  70010914  00010a2c  2**0
                  CONTENTS, ALLOC, LOAD, DATA
 17 .ramfunc      00000000  80002000  80002000  00012e70  2**0
                  CONTENTS
 18 datas         000003a0  80002000  70012914  00012a2c  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 19 device_states 00000024  800023a0  70012cb4  00012dcc  2**0
                  CONTENTS, ALLOC, LOAD, DATA
 20 log_mpsc_pbuf_area 00000038  800023c4  70012cd8  00012df0  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 21 log_msg_ptr_area 00000004  800023fc  70012d10  00012e28  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 22 k_mem_slab_area 0000001c  80002400  70012d14  00012e2c  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 23 k_heap_area   00000014  8000241c  70012d30  00012e48  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 24 k_sem_area    00000010  80002430  70012d44  00012e5c  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 25 .dtcm_noinit  00015000  20000000  20000000  00000120  2**5
                  ALLOC
 26 .comment      00000020  00000000  00000000  00012e70  2**0
                  CONTENTS, READONLY
 27 .debug_aranges 00001f50  00000000  00000000  00012e90  2**3
                  CONTENTS, READONLY, DEBUGGING, OCTETS
 28 .debug_info   000c51d8  00000000  00000000  00014de0  2**0
                  CONTENTS, READONLY, DEBUGGING, OCTETS
 29 .debug_abbrev 0001113a  00000000  00000000  000d9fb8  2**0
                  CONTENTS, READONLY, DEBUGGING, OCTETS
 30 .debug_line   00037282  00000000  00000000  000eb0f2  2**0
                  CONTENTS, READONLY, DEBUGGING, OCTETS
 31 .debug_frame  00005418  00000000  00000000  00122374  2**2
                  CONTENTS, READONLY, DEBUGGING, OCTETS
 32 .debug_str    00013d7c  00000000  00000000  0012778c  2**0
                  CONTENTS, READONLY, DEBUGGING, OCTETS
 33 .debug_loc    00030ca6  00000000  00000000  0013b508  2**0
                  CONTENTS, READONLY, DEBUGGING, OCTETS
 34 .debug_ranges 00007758  00000000  00000000  0016c1b0  2**3
                  CONTENTS, READONLY, DEBUGGING, OCTETS
 35 .ARM.attributes 00000032  00000000  00000000  00173908  2**0
                  CONTENTS, READONLY
 36 .last_section 00000004  70012d54  70012d54  00012e6c  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 37 bss           000013d2  80002440  80002440  00012e80  2**3
                  ALLOC
 38 noinit        00036340  80003840  80003840  00012e80  2**6
                  ALLOC

может нет секции .nocache?