unplaced_sections problem

Question

Hi. I have a problem. I changed project settings 52832 -> 52840 on 52832 the project work perfectly. using 52832, SDK 15.3.0 S332, ble, ant, ble dfu. now I wanna import to 52840. error is unplaced_sections Generating linker script ‘BS_70_VER_0.1.ld’ Linking BS_70_VER_0.1.elf Output/Debug/Exe/BS_70_VER_0.1.elf section `.init' will not fit in region `UNPLACED_SECTIONS' region `UNPLACED_SECTIONS' overflowed by 94244 bytes Output/BS_70_VER_0.1 Debug/Obj/thumb_crt0.o: in function `memory_set': (.init+0xd8): undefined reference to `__stack_end__' (.init+0xdc): undefined reference to `__stack_start__' (.init+0xe0): undefined reference to `__stack_process_end__' (.init+0xe4): undefined reference to `__stack_process_start__' (.init+0xe8): undefined reference to `__data_load_start__' (.init+0xec): undefined reference to `__data_start__' (.init+0xf0): undefined reference to `__data_end__' (.init+0xf4): undefined reference to `__text_load_start__' (.init+0xf8): undefined reference to `__text_start__' (.init+0xfc): undefined reference to `__text_end__' (.init+0x100): undefined reference to `__fast_load_start__' (.init+0x104): undefined reference to `__fast_start__' (.init+0x108): undefined reference to `__fast_end__' (.init+0x10c): undefined reference to `__ctors_load_start__' (.init+0x110): undefined reference to `__ctors_start__' (.init+0x114): undefined reference to `__ctors_end__' (.init+0x118): undefined reference to `__dtors_load_start__' (.init+0x11c): undefined reference to `__dtors_start__' (.init+0x120): undefined reference to `__dtors_end__' (.init+0x124): undefined reference to `__rodata_load_start__' (.init+0x128): undefined reference to `__rodata_start__' (.init+0x12c): undefined reference to `__rodata_end__' (.init+0x130): undefined reference to `__tdata_load_start__' (.init+0x134): undefined reference to `__tdata_start__' (.init+0x138): undefined reference to `__tdata_end__' (.init+0x13c): undefined reference to `__bss_start__' (.init+0x140): undefined reference to `__bss_end__' (.init+0x144): undefined reference to `__tbss_start__' (.init+0x148): undefined reference to `__tbss_end__' (.init+0x14c): undefined reference to `__heap_start__' (.init+0x150): undefined reference to `__heap_end__' Output/BS_70_VER_0.1 Debug/Obj/ses_startup_nrf_common.o: in function `InitializeUserMemorySections': (.init+0x54): undefined reference to `__start_nrf_sections' (.init+0x58): undefined reference to `__start_nrf_sections_run' (.init+0x5c): undefined reference to `__end_nrf_sections_run' Output/BS_70_VER_0.1 Debug/Obj/ses_startup_nrf52.o: in function `_vectors': (.vectors+0x0): undefined reference to `__stack_end__' Output/BS_70_VER_0.1 Debug/Obj/nrf_log_frontend.o: in function `nrf_log_init': nrf_log_frontend.c:(.text.nrf_log_init+0x6c): undefined reference to `__stop_log_const_data' nrf_log_frontend.c:(.text.nrf_log_init+0x70): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_log_frontend.o: in function `nrf_log_module_cnt_get': nrf_log_frontend.c:(.text.nrf_log_module_cnt_get+0xc): undefined reference to `__stop_log_const_data' nrf_log_frontend.c:(.text.nrf_log_module_cnt_get+0x10): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_log_frontend.o: in function `module_idx_get': nrf_log_frontend.c:(.text.module_idx_get+0x60): undefined reference to `__start_log_dynamic_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_log_frontend.o: in function `nrf_log_module_name_get': nrf_log_frontend.c:(.text.nrf_log_module_name_get+0x3c): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_log_frontend.o: in function `nrf_log_color_id_get': nrf_log_frontend.c:(.text.nrf_log_color_id_get+0x6c): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_log_frontend.o: in function `nrf_log_frontend_dequeue': nrf_log_frontend.c:(.text.nrf_log_frontend_dequeue+0x3a0): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/app_error_weak.o: in function `app_error_fault_handler': app_error_weak.c:(.text.app_error_fault_handler+0x144): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_sdh.o:(.rodata.sdh_req_observers+0x0): undefined reference to `__start_sdh_req_observers' Output/BS_70_VER_0.1 Debug/Obj/nrf_sdh.o:(.rodata.sdh_req_observers+0x4): undefined reference to `__stop_sdh_req_observers' Output/BS_70_VER_0.1 Debug/Obj/nrf_sdh.o:(.rodata.sdh_state_observers+0x0): undefined reference to `__start_sdh_state_observers' Output/BS_70_VER_0.1 Debug/Obj/nrf_sdh.o:(.rodata.sdh_state_observers+0x4): undefined reference to `__stop_sdh_state_observers' Output/BS_70_VER_0.1 Debug/Obj/nrf_sdh.o:(.rodata.sdh_stack_observers+0x0): undefined reference to `__start_sdh_stack_observers' Output/BS_70_VER_0.1 Debug/Obj/nrf_sdh.o:(.rodata.sdh_stack_observers+0x4): undefined reference to `__stop_sdh_stack_observers' Output/BS_70_VER_0.1 Debug/Obj/nrf_pwr_mgmt.o:(.rodata.pwr_mgmt_data+0x0): undefined reference to `__start_pwr_mgmt_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_pwr_mgmt.o:(.rodata.pwr_mgmt_data+0x4): undefined reference to `__stop_pwr_mgmt_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_fstorage.o: in function `nrf_fstorage_init': nrf_fstorage.c:(.text.nrf_fstorage_init+0x7c): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_fstorage.o: in function `nrf_fstorage_uninit': nrf_fstorage.c:(.text.nrf_fstorage_uninit+0x84): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_fstorage.o: in function `nrf_fstorage_read': nrf_fstorage.c:(.text.nrf_fstorage_read+0x12c): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_fstorage.o: in function `nrf_fstorage_write': nrf_fstorage.c:(.text.nrf_fstorage_write+0x198): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/nrf_fstorage.o: in function `nrf_fstorage_erase': nrf_fstorage.c:(.text.nrf_fstorage_erase+0x110): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/user_rtc.o:user_rtc.c:(.text.rtc_init+0x8c): more undefined references to `__start_log_const_data' follow Output/BS_70_VER_0.1 Debug/Obj/nrf_sdh_ble.o: in function `nrf_sdh_ble_app_ram_start_get': nrf_sdh_ble.c:(.text.nrf_sdh_ble_app_ram_start_get+0x20): undefined reference to `__app_ram_start__' Output/BS_70_VER_0.1 Debug/Obj/main.o: in function `main': main.c:(.text.main+0x3c): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/user_timer.o: in function `battery_time_handler': user_timer.c:(.text.battery_time_handler+0x80): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/user_timer.o: in function `battery_time_change_phase2': user_timer.c:(.text.battery_time_change_phase2+0x54): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/user_timer.o: in function `battery_Check_time_handler': user_timer.c:(.text.battery_Check_time_handler+0x5c): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/user_timer.o: in function `user_app_timers_init': user_timer.c:(.text.user_app_timers_init+0x12c): undefined reference to `__start_log_const_data' Output/BS_70_VER_0.1 Debug/Obj/user_battery.o:user_battery.c:(.text.battery_uninitfor_cali+0x30): more undefined references to `__start_log_const_data' follow Build failed I changed S340, and file path, and Preprocessor Definitions like this: BOARD_PCA10056 FLOAT_ABI_HARD CONFIG_GPIO_AS_PINRESET INITIALIZE_USER_SECTIONS NO_VTOR_CONFIG NRF52840_XXAA NRF_SD_BLE_API_VERSION=6 S340 SOFTDEVICE_PRESENT SWI_DISABLE0 NRF_DFU_TRANSPORT_BLE=1 NRF52 NRF52_PAN_74 flash_placement.xml : Section Placement Macros : FLASH_PH_START=0x0 FLASH_PH_SIZE=0x80000 RAM_PH_START=0x20000000 RAM_PH_SIZE=0x10000 FLASH_START=0x31000 FLASH_SIZE=0x50000 RAM_START=0x200027B8 RAM_SIZE=0xd848 Could you help me how to solve the issue? Thank you.

Vidar Berg · Accepted Answer

Hi, 
 Please make sure the "linker_section_placements_segments" segments are adjusted to the 52840 as well. The linker will throw the 'UNPLACED_SECTIONS' error if the placement macros don't fit inside the defined segments. The usual segments are FLASH & RAM but note that some project such as the bootloader defines more. The other errors appear to be a result of this one. 
 Best regards, 
 Vidar

unplaced_sections problem

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